CryptoAPIs Io MCP server

• address_history__evm_address_historyFree

  Query EVM address full history (requires synced address). Cursor pagination: use 'nextStartingAfter' from response as 'startingAfter'. Actions & supported blockchains: • get-statistics: ethereum, ethereum-classic • list-transactions: ethereum, ethereum-classic, binance-smart-chain, polygon, tron • list-transactions-by-timestamp: ethereum, ethereum-classic (requires timestamp) • list-token-transfers: ethereum, polygon, tron, ethereum-classic, binance-smart-chain • list-internal-transactions: ethereum, polygon, tron, ethereum-classic, binance-smart-chain • list-tokens: ethereum, polygon, tron, ethereum-classic, binance-smart-chain Blockchain → Networks: • ethereum: mainnet, sepolia • ethereum-classic: mainnet, mordor • binance-smart-chain: mainnet, testnet • polygon: mainnet, amoy • tron: mainnet, nile • avalanche (C-Chain): mainnet, fuji • arbitrum: mainnet, sepolia • base: mainnet, sepolia • optimism: mainnet, sepolia Credits by action (source: OpenAPI): • get-statistics: binance-smart-chain 575, ethereum 230, ethereum-classic 299, polygon 460, tron 345 • list-internal-transactions: binance-smart-chain 825, ethereum 330, ethereum-classic 429, polygon 660, tron 495 • list-token-transfers: binance-smart-chain 575, ethereum 230, ethereum-classic 299, polygon 460, tron 345 • list-tokens: binance-smart-chain 575, ethereum 230, ethereum-classic 299, polygon 460, tron 345 • list-transactions: binance-smart-chain 325, ethereum 130, ethereum-classic 169, polygon 260, tron 195 • list-transactions-by-timestamp: binance-smart-chain 575, ethereum 230, ethereum-classic 299, polygon 460, tron 345 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• address_history__manage_addressFree

  Manage synced addresses for Address History APIs. Cursor pagination for 'list': use 'nextStartingAfter' as 'startingAfter'. Actions: • sync: Add new address to sync (requires 'address') • list: Get all synced addresses for blockchain/network • activate: Reactivate a paused address (requires 'address') • delete: Remove synced address (requires 'address') Blockchain → Networks: • ethereum: mainnet, sepolia • ethereum-classic: mainnet, mordor • binance-smart-chain: mainnet, testnet • polygon: mainnet, amoy • tron: mainnet, nile • avalanche (C-Chain): mainnet, fuji • arbitrum: mainnet, sepolia • base: mainnet, sepolia • optimism: mainnet, sepolia • bitcoin: mainnet, testnet • bitcoin-cash: mainnet, testnet • litecoin: mainnet, testnet • dogecoin: mainnet, testnet • dash: mainnet, testnet • zcash: mainnet, testnet Note: 'sync', 'activate', 'delete' actions require confirmation. They return a preview with a one-time token instead of executing immediately. Credits by action (source: OpenAPI): • activate: 30 • delete: 30 • list: 30 • sync: 30 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• address_history__system_infoFree

  CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockchain events), pay-as-you-go • callbacks — Webhook mechanics: URL requirements, retry strategy (5 retries, exponential backoff), HMAC security, idempotency • limits — Throughput soft/hard limits per plan, 2.1x penalty multiplier, rate limiting behavior

• address_history__utxo_address_historyFree

  Query UTXO address full history (requires synced address). Pagination: • list-transactions, list-transactions-by-timestamp: cursor pagination (use 'nextStartingAfter' → 'startingAfter') • list-unspent-outputs: offset pagination (use 'offset', response has 'total') Actions & supported blockchains: • get-statistics: bitcoin, bitcoin-cash • list-transactions: bitcoin, bitcoin-cash, litecoin, dogecoin, dash, zcash • list-transactions-by-timestamp: bitcoin, bitcoin-cash (requires timestamp) • list-unspent-outputs: bitcoin, bitcoin-cash, litecoin, dogecoin, dash, zcash (uses offset pagination) Blockchain → Networks: • bitcoin: mainnet, testnet • bitcoin-cash: mainnet, testnet • litecoin: mainnet, testnet • dogecoin: mainnet, testnet • dash: mainnet, testnet • zcash: mainnet, testnet Credits by action (source: OpenAPI): • get-statistics: bitcoin 530, bitcoin-cash 689, dash 583, dogecoin 583, litecoin 583, zcash 689 • list-transactions: bitcoin 130, bitcoin-cash 169, dash 143, dogecoin 143, litecoin 143, zcash 169 • list-transactions-by-timestamp: bitcoin 530, bitcoin-cash 689, dash 583, dogecoin 583, litecoin 583, zcash 689 • list-unspent-outputs: bitcoin 530, bitcoin-cash 689, dash 583, dogecoin 583, litecoin 583, zcash 689 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• address_latest__evm_address_latestFree

  Query latest EVM address data (last 14 days). Cursor pagination: use 'nextStartingAfter' from response as 'startingAfter'. Actions & supported blockchains: • get-balance: ethereum, ethereum-classic, binance-smart-chain, tron, polygon, avalanche (C-Chain), arbitrum, base, optimism • get-next-nonce: ethereum, ethereum-classic, binance-smart-chain (mainnet, mordor, testnet, sepolia) • list-transactions: ethereum, ethereum-classic, binance-smart-chain, arbitrum, polygon, avalanche (C-Chain), base, optimism, tron • list-token-transfers: ethereum, ethereum-classic, binance-smart-chain, tron, polygon, avalanche (C-Chain), arbitrum, base, optimism • list-internal-transactions: ethereum, ethereum-classic, binance-smart-chain, polygon, avalanche (C-Chain), arbitrum, base, optimism, tron Blockchain → Networks: • ethereum: mainnet, sepolia • ethereum-classic: mainnet, mordor • binance-smart-chain: mainnet, testnet • polygon: mainnet, amoy • tron: mainnet, nile • avalanche (C-Chain): mainnet, fuji • arbitrum: mainnet, sepolia • base: mainnet, sepolia • optimism: mainnet, sepolia Credits by action (source: OpenAPI): • get-balance: arbitrum 48, avalanche 54, base 36, binance-smart-chain 75, ethereum 30, ethereum-classic 39, optimism 42, polygon 60, tron 45 • get-next-nonce: arbitrum 32, avalanche 36, base 24, binance-smart-chain 50, ethereum 20, ethereum-classic 26, optimism 28, polygon 40, tron 30 • list-internal-transactions: arbitrum 512, avalanche 576, base 384, binance-smart-chain 800, ethereum 320, ethereum-classic 416, optimism 448, polygon 640, tron 480 • list-token-transfers: arbitrum 352, avalanche 396, base 264, binance-smart-chain 550, ethereum 220, ethereum-classic 286, optimism 308, polygon 440, tron 330 • list-transactions: arbitrum 192, avalanche 216, base 144, binance-smart-chain 300, ethereum 120, ethereum-classic 156, optimism 168, polygon 240, tron 180 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• address_latest__kaspa_address_latestFree

  Query latest Kaspa address data. Cursor pagination: use 'nextStartingAfter' from response as 'startingAfter'. Actions: • get-balance: Get address KAS balance • list-transactions: Get address transactions Networks: mainnet (only) Credits by action (source: OpenAPI): • get-balance: kaspa 918 • list-transactions: kaspa 918 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• address_latest__solana_address_latestFree

  Query latest Solana address data (last 14 days). Cursor pagination: use 'nextStartingAfter' from response as 'startingAfter'. Actions: • get-balance: Get address SOL balance • list-transactions: Get address transactions • list-tokens: Get SPL tokens held by address Networks: mainnet, devnet Credits by action (source: OpenAPI): • get-balance: solana 75 • list-tokens: solana 120 • list-transactions: solana 90 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• address_latest__system_infoFree

  CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockchain events), pay-as-you-go • callbacks — Webhook mechanics: URL requirements, retry strategy (5 retries, exponential backoff), HMAC security, idempotency • limits — Throughput soft/hard limits per plan, 2.1x penalty multiplier, rate limiting behavior

• address_latest__utxo_address_latestFree

  Query latest UTXO address data (last 14 days). • get-balance: no pagination • list-transactions: cursor pagination - use 'nextStartingAfter' from response as 'startingAfter' • list-unconfirmed-transactions: offset pagination - use 'limit' and 'offset' (lists unconfirmed/mempool transactions) Actions & supported blockchains: • get-balance: bitcoin, bitcoin-cash, litecoin, dash, dogecoin, zcash • list-transactions: bitcoin, bitcoin-cash, dash, dogecoin, litecoin, zcash • list-unconfirmed-transactions: bitcoin, bitcoin-cash, litecoin, dogecoin, dash, zcash Blockchain → Networks: • bitcoin: mainnet, testnet • bitcoin-cash: mainnet, testnet • litecoin: mainnet, testnet • dogecoin: mainnet, testnet • dash: mainnet, testnet • zcash: mainnet, testnet Credits by action (source: OpenAPI): • get-balance: bitcoin 510, bitcoin-cash 612, dash 561, dogecoin 561, litecoin 561, zcash 663 • list-transactions: bitcoin 110, bitcoin-cash 132, dash 121, dogecoin 121, litecoin 121, zcash 143 • list-unconfirmed-transactions: bitcoin 110, bitcoin-cash 132, dash 121, dogecoin 121, litecoin 121, zcash 143 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• address_latest__xrp_address_latestFree

  Query latest XRP (Ripple) address data. Cursor pagination: use 'nextStartingAfter' from response as 'startingAfter'. Actions: • get-balance: Get address XRP balance • list-transactions: Get address transactions • get-next-sequence: Get next available sequence number for transactions Networks: mainnet, testnet Credits by action (source: OpenAPI): • get-balance: xrp 20 • get-next-sequence: xrp 20 • list-transactions: xrp 110 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• aml__amlFree

  AML (Anti-Money Laundering) risk checks for addresses and transactions. Actions: • verify-address: Check if a blockchain address is flagged or associated with fraud, sanctions, ransomware, exploits, darknet markets, or other AML risk categories. Returns risk score, risk band, and the flagging sources. • screen-transaction: Screen a transaction against AML data. Returns whether the transaction is flagged, its risk score/band, and the flagged participant addresses with their roles, scores, severities and categories. • get-address-exposure: Get an address's exposure to risky entities/categories across the AML exposure graph. Params: blockchain, address. Costs 200,000 credits per request. • list-address-exposure-paths: List the paths connecting an address to risky entities in the AML exposure graph. Params: blockchain, address; optional rootAddress (only return routes originating from this flagged root address), limit (1-50, defaults to 10), startingAfter (pagination cursor). Costs 100,000 credits per page - pass the response's next cursor back as startingAfter to fetch subsequent pages. get-address-exposure and list-address-exposure-paths only support a subset of chains - see the blockchain parameter description. Note: the credit cost of these endpoints is significant — see credits below. Credits by action (source: OpenAPI): • get-address-exposure: 200000 • list-address-exposure-paths: 100000 • screen-transaction: 500000 • verify-address: 200000 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• aml__system_infoFree

  CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockchain events), pay-as-you-go • callbacks — Webhook mechanics: URL requirements, retry strategy (5 retries, exponential backoff), HMAC security, idempotency • limits — Throughput soft/hard limits per plan, 2.1x penalty multiplier, rate limiting behavior

• block_data__evm_block_dataFree

  Get EVM block details (Block Data product). Actions: • get-block-by-height: Get block details by block height (number) • get-block-by-hash: Get block details by block hash • list-transactions-by-block-hash: List transactions in a block by block hash • list-transactions-by-block-height: List transactions in a block by block height • get-last-mined-block: Get the latest mined block details • list-latest-mined-blocks: List the latest mined blocks Blockchain → Networks: • ethereum: mainnet, sepolia • ethereum-classic: mainnet, mordor • binance-smart-chain: mainnet, testnet • polygon: mainnet, amoy • tron: mainnet, nile • avalanche (C-Chain): mainnet, fuji • arbitrum: mainnet, sepolia • base: mainnet, sepolia • optimism: mainnet, sepolia Credits by action (source: OpenAPI): • get-block-by-hash: arbitrum 48, avalanche 54, base 36, binance-smart-chain 75, ethereum 30, ethereum-classic 39, optimism 42, polygon 60, tron 45 • get-block-by-height: arbitrum 48, avalanche 54, base 36, binance-smart-chain 75, ethereum 30, ethereum-classic 39, optimism 42, polygon 60, tron 45 • get-last-mined-block: arbitrum 48, avalanche 54, base 36, binance-smart-chain 75, ethereum 30, ethereum-classic 39, optimism 42, polygon 60, tron 45 • list-latest-mined-blocks: arbitrum 48, avalanche 54, base 36, binance-smart-chain 75, ethereum 30, ethereum-classic 39, optimism 42, polygon 60, tron 45 • list-transactions-by-block-hash: arbitrum 48, avalanche 54, base 36, binance-smart-chain 75, ethereum 30, ethereum-classic 39, optimism 42, polygon 60, tron 45 • list-transactions-by-block-height: arbitrum 48, avalanche 54, base 36, binance-smart-chain 75, ethereum 30, ethereum-classic 39, optimism 42, polygon 60, tron 45 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• block_data__system_infoFree

  CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockchain events), pay-as-you-go • callbacks — Webhook mechanics: URL requirements, retry strategy (5 retries, exponential backoff), HMAC security, idempotency • limits — Throughput soft/hard limits per plan, 2.1x penalty multiplier, rate limiting behavior

• block_data__utxo_block_dataFree

  Get UTXO block details (Block Data product). Actions: • get-block-by-height: Get block details by block height (number) • get-block-by-hash: Get block details by block hash • list-transactions-by-block-height: List transactions in a block by block height • list-transactions-by-block-hash: List transactions in a block by block hash • get-last-mined-block: Get the latest mined block details • list-latest-mined-blocks: List the latest mined blocks Blockchain → Networks: • bitcoin: mainnet, testnet • bitcoin-cash: mainnet, testnet • litecoin: mainnet, testnet • dogecoin: mainnet, testnet • dash: mainnet, testnet • zcash: mainnet, testnet Credits by action (source: OpenAPI): • get-block-by-hash: bitcoin 20, bitcoin-cash 24, dash 22, dogecoin 22, litecoin 22, zcash 26 • get-block-by-height: bitcoin 20, bitcoin-cash 24, dash 22, dogecoin 22, litecoin 22, zcash 26 • get-last-mined-block: bitcoin 20, bitcoin-cash 24, dash 22, dogecoin 22, litecoin 22, zcash 26 • list-latest-mined-blocks: bitcoin 20, bitcoin-cash 24, dash 22, dogecoin 22, litecoin 22, zcash 26 • list-transactions-by-block-hash: bitcoin 20, bitcoin-cash 24, dash 22, dogecoin 22, litecoin 22, zcash 26 • list-transactions-by-block-height: bitcoin 20, bitcoin-cash 24, dash 22, dogecoin 22, litecoin 22, zcash 26 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• block_data__xrp_block_dataFree

  Get XRP block details (Block Data product). Path uses network only (no blockchain). Networks: mainnet, testnet. Actions: • get-block-by-height: Get block details by block height (number) • get-block-by-hash: Get block details by block hash • list-transactions-by-block-height: List transactions in a block by block height • list-transactions-by-block-hash: List transactions in a block by block hash • get-last-mined-block: Get the latest mined block details • list-latest-mined-blocks: List the latest mined blocks Credits by action (source: OpenAPI): • get-block-by-hash: 20 • get-block-by-height: 20 • get-last-mined-block: 20 • list-latest-mined-blocks: 20 • list-transactions-by-block-hash: 20 • list-transactions-by-block-height: 20 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• blockchain_events__blockchain_events_createwrite actionFree

  Create a webhook subscription for on-chain events. When the specified event occurs, CryptoAPIs sends a POST request to your callbackUrl with the event data. Subscriptions persist until deleted. Event types (supported blockchains vary per type — an invalid blockchain for the chosen eventType is rejected before calling the API): • address-coins-transactions-unconfirmed: fires when an unconfirmed coin transaction touches the address • address-coins-transactions-confirmed: fires once a coin transaction confirms (optionally on an exact confirmation via receiveCallbackOn) • address-coins-transactions-confirmed-each-confirmation: fires on every confirmation up to confirmationsCount (required) • address-tokens-transactions-confirmed: fires once a token transfer confirms • address-tokens-transactions-confirmed-each-confirmation: fires on every confirmation up to confirmationsCount (required) • address-internal-transactions-confirmed: fires once a confirmed internal (contract-internal) transaction touches the address • address-internal-transactions-confirmed-each-confirmation: fires on every confirmation up to confirmationsCount (required) • block-mined: fires on every new block (no address field) All event types except block-mined require an address. Note: 'create' actions require confirmation. They return a preview with a one-time token instead of executing immediately. Credits per call: 30 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• blockchain_events__blockchain_events_manageFree

  Manage existing webhook subscriptions for on-chain events. Use this to view, delete, or re-activate event subscriptions created via blockchain_events_create. Actions: • list-subscriptions: List all active subscriptions for a blockchain/network (paginated) • get-subscription: Get details of a specific subscription by its referenceId • delete-subscription: Remove a subscription (stops webhook delivery) • activate-subscription: Re-activate a previously deactivated subscription Note: 'delete-subscription', 'activate-subscription' actions require confirmation. They return a preview with a one-time token instead of executing immediately. Credits by action (source: OpenAPI): • activate-subscription: 12 • delete-subscription: 12 • get-subscription: 12 • list-subscriptions: 12 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• blockchain_events__system_infoFree

  CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockchain events), pay-as-you-go • callbacks — Webhook mechanics: URL requirements, retry strategy (5 retries, exponential backoff), HMAC security, idempotency • limits — Throughput soft/hard limits per plan, 2.1x penalty multiplier, rate limiting behavior

• blockchain_fees__blockchain_fees_evmFree

  Get fee recommendations and estimate gas costs for EVM blockchains. Use this before preparing or signing a transaction to determine appropriate gas parameters. Actions: • get-fee-recommendations: Get recommended gas price tiers (slow/standard/fast) • get-eip-1559-fee-recommendations: Get EIP-1559 fee parameters (baseFee, maxPriorityFee) for supported chains • estimate-native-coin-transfer-gas: Estimate gas for a native coin transfer (e.g. ETH, BNB) • estimate-token-transfer-gas: Estimate gas for an ERC-20/ERC-721 token transfer • estimate-contract-interaction-gas: Estimate gas for a smart contract call Credits by action (source: OpenAPI): • estimate-contract-interaction-gas: arbitrum 192, avalanche 216, base 144, binance-smart-chain 300, ethereum 120, ethereum-classic 156, optimism 168, polygon 240, tron 180 • estimate-native-coin-transfer-gas: arbitrum 192, avalanche 216, base 144, binance-smart-chain 300, ethereum 120, ethereum-classic 156, optimism 168, polygon 240, tron 180 • estimate-token-transfer-gas: arbitrum 192, avalanche 216, base 144, binance-smart-chain 300, ethereum 120, ethereum-classic 156, optimism 168, polygon 240, tron 180 • get-eip-1559-fee-recommendations: arbitrum 48, avalanche 54, base 36, binance-smart-chain 75, ethereum 30, ethereum-classic 39, optimism 42, polygon 60, tron 45 • get-fee-recommendations: arbitrum 48, avalanche 54, base 36, binance-smart-chain 75, ethereum 30, ethereum-classic 39, optimism 42, polygon 60, tron 45 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• blockchain_fees__blockchain_fees_solanaFree

  Blockchain Fees Solana: fee recommendations and compute-unit estimation. Solana uses compute units (not gas), so this is a distinct cost model from EVM. Actions: • get-fee-recommendations: Get current priority fee recommendations from the mempool • estimate-native-coin-transfer-compute-units: Estimate compute units for a native SOL transfer • estimate-token-transfer-compute-units: Estimate compute units for an SPL token transfer • estimate-program-invocation-compute-units: Estimate compute units for an arbitrary program instruction call Credits by action (source: OpenAPI): • estimate-native-coin-transfer-compute-units: 120 • estimate-program-invocation-compute-units: 120 • estimate-token-transfer-compute-units: 120 • get-fee-recommendations: 90 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• blockchain_fees__blockchain_fees_tezosFree

  Blockchain Fees Tezos: fee recommendations and fee estimation for XTZ, FA1.2, and FA2 transfers. Actions: • get-fee-recommendations: Get current minimal fee/cost rates from the mempool • estimate-transfer: Estimate the fee for a native XTZ transfer • estimate-fa12-transfer: Estimate the fee for an FA1.2 token transfer • estimate-fa2-transfer: Estimate the fee for an FA2 token transfer Credits by action (source: OpenAPI): • estimate-fa12-transfer: 52 • estimate-fa2-transfer: 52 • estimate-transfer: 52 • get-fee-recommendations: 52 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• blockchain_fees__blockchain_fees_utxoFree

  Get fee recommendations for UTXO blockchains (bitcoin, bitcoin-cash, litecoin, dogecoin, dash, zcash). Use this before preparing or signing a transaction to determine the appropriate fee rate. Actions: • get-fee-recommendations: Get recommended fee-per-byte tiers (slow/standard/fast) from the mempool • estimate-transaction-smart-fee: Estimate the fee rate needed for confirmation within a target number of blocks Credits by action (source: OpenAPI): • estimate-transaction-smart-fee: bitcoin 510, bitcoin-cash 612, dash 561, dogecoin 561, litecoin 561, zcash 663 • get-fee-recommendations: bitcoin 510, bitcoin-cash 612, dash 561, dogecoin 561, litecoin 561, zcash 663 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• blockchain_fees__blockchain_fees_xrpFree

  Blockchain Fees XRP: get fee recommendations. Networks: mainnet, testnet. Credits per call: 20 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• blockchain_fees__system_infoFree

  CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockchain events), pay-as-you-go • callbacks — Webhook mechanics: URL requirements, retry strategy (5 retries, exponential backoff), HMAC security, idempotency • limits — Throughput soft/hard limits per plan, 2.1x penalty multiplier, rate limiting behavior

• broadcast__broadcast_signed_transactionFree

  Broadcast locally signed transaction (Broadcast product). Submit a signed transaction hex to the network. Supported blockchains and networks vary; see credits for per-chain cost. Note: 'broadcast-signed-transaction' actions require confirmation. They return a preview with a one-time token instead of executing immediately. Credits by action (source: OpenAPI): • broadcast-signed-transaction: arbitrum 80, avalanche 90, base 60, binance-smart-chain 125, bitcoin 50, bitcoin-cash 60, dash 55, dogecoin 55, ethereum 50, ethereum-classic 65, litecoin 55, optimism 70, polygon 100, solana 150, tezos 65, tron 75, xrp 50, zcash 65 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• broadcast__system_infoFree

  CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockchain events), pay-as-you-go • callbacks — Webhook mechanics: URL requirements, retry strategy (5 retries, exponential backoff), HMAC security, idempotency • limits — Throughput soft/hard limits per plan, 2.1x penalty multiplier, rate limiting behavior

• contracts__evm_contract_dataFree

  Get EVM contract token details (Contracts product). Actions: • get-token-details-by-contract-address: Get token details (name, symbol, standard, decimals, totalSupply) by contract address Blockchain → Networks: • ethereum: mainnet, sepolia • ethereum-classic: mainnet, mordor • binance-smart-chain: mainnet, testnet Credits by action (source: OpenAPI): • get-token-details-by-contract-address: binance-smart-chain 75, ethereum 30, ethereum-classic 39 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• contracts__solana_contract_dataFree

  Get Solana contract token details (Contracts product). Actions: • get-token-details-by-contract-address: Get token details by contract address Networks: mainnet, devnet Credits by action (source: OpenAPI): • get-token-details-by-contract-address: 75 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• contracts__system_infoFree

  CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockchain events), pay-as-you-go • callbacks — Webhook mechanics: URL requirements, retry strategy (5 retries, exponential backoff), HMAC security, idempotency • limits — Throughput soft/hard limits per plan, 2.1x penalty multiplier, rate limiting behavior

• hd_wallet__hd_wallet_data_evmFree

  Query HD wallet data for EVM blockchains by extended public key (xPub). The wallet must first be synced via manage_hd_wallet. Offset pagination: use 'limit' and 'offset' for paged results. Actions: • derive-receiving-address: Derive the next unused receiving address • list-addresses: List all derived addresses for the wallet • list-transactions: List transactions across all wallet addresses • prepare-transaction: Build an unsigned EVM transaction from a wallet address • list-assets: List token balances (ERC-20, ERC-721, etc.) held by the wallet • get-details: Get wallet summary (total balance, address count, sync status) Credits by action (source: OpenAPI): • derive-receiving-address: 24 • get-details: 12 • list-addresses: 12 • list-assets: 12 • list-transactions: 120 • prepare-transaction: 24 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• hd_wallet__hd_wallet_data_utxoFree

  Query HD wallet data for UTXO blockchains (bitcoin, litecoin, bitcoin-cash, dogecoin, dash, zcash) by extended public key (xPub/yPub/zPub). The wallet must first be synced via manage_hd_wallet. Offset pagination: use 'limit' and 'offset' for paged results. Actions: • derive-receiving-address: Derive the next unused receiving address • derive-change-address: Derive the next unused change address • list-addresses: List all derived addresses for the wallet • list-transactions: List transactions across all wallet addresses • list-utxos: List unspent transaction outputs (UTXOs) for the wallet • prepare-transaction: Build an unsigned UTXO transaction with automatic input selection • list-assets: List token/asset balances held by the wallet • get-details: Get wallet summary (total balance, address count, sync status) Credits by action (source: OpenAPI): • derive-change-address: 24 • derive-receiving-address: 24 • get-details: 12 • list-addresses: 12 • list-assets: 12 • list-transactions: 120 • list-utxos: 120 • prepare-transaction: 24 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• hd_wallet__hd_wallet_data_xrpFree

  Query HD wallet data for XRP (Ripple) by extended public key (xPub). The wallet must first be synced via manage_hd_wallet. Offset pagination: use 'limit' and 'offset' for paged results. Actions: • derive-receiving-address: Derive the next unused receiving address • list-addresses: List all derived addresses for the wallet • list-transactions: List transactions across all wallet addresses • list-assets: List token/asset balances held by the wallet • get-details: Get wallet summary (total balance, address count, sync status) Credits by action (source: OpenAPI): • derive-receiving-address: 24 • get-details: 12 • list-addresses: 12 • list-assets: 12 • list-transactions: 90 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• hd_wallet__manage_hd_walletFree

  Manage HD wallets identified by extended public key (xPub/yPub/zPub). Private keys never leave the user's device — only the extended public key is sent to CryptoAPIs for address derivation and balance tracking. Actions: • sync-wallet: Register an xPub to start syncing its addresses and balances • list-wallets: List all synced HD wallets for a blockchain/network • activate-wallet: Re-activate a previously deleted wallet • delete-wallet: Remove an xPub from tracking (can be re-activated later) • get-status: Check the sync status of a wallet (syncing, synced, etc.) Note: 'sync-wallet', 'activate-wallet', 'delete-wallet' actions require confirmation. They return a preview with a one-time token instead of executing immediately. Credits by action (source: OpenAPI): • activate-wallet: 12 • delete-wallet: 12 • get-status: 10 • list-wallets: 12 • sync-wallet: 36 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• hd_wallet__system_infoFree

  CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockchain events), pay-as-you-go • callbacks — Webhook mechanics: URL requirements, retry strategy (5 retries, exponential backoff), HMAC security, idempotency • limits — Throughput soft/hard limits per plan, 2.1x penalty multiplier, rate limiting behavior

• market_data__market_data_assetsFree

  Market Data assets (asset details). Actions: • get-asset-details-by-asset-id: Get asset details by unique asset ID • get-asset-details-by-asset-symbol: Get asset details by symbol (e.g. BTC, ETH) Credits by action (source: OpenAPI): • get-asset-details-by-asset-id: 10 • get-asset-details-by-asset-symbol: 10 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• market_data__market_data_exchange_ratesFree

  Market Data exchange rates. Actions: • get-exchange-rate-by-asset-symbols: Get exchange rate between two assets by symbol (e.g. BTC, USD) • get-exchange-rate-by-asset-ids: Get exchange rate between two assets by asset ID Credits by action (source: OpenAPI): • get-exchange-rate-by-asset-ids: 10 • get-exchange-rate-by-asset-symbols: 10 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• market_data__market_data_metadataFree

  Market Data metadata (list supported assets). Actions: • list-supported-assets: List supported crypto and fiat assets (optional pagination and type filter) Credits by action (source: OpenAPI): • list-supported-assets: 10 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• market_data__system_infoFree

  CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockchain events), pay-as-you-go • callbacks — Webhook mechanics: URL requirements, retry strategy (5 retries, exponential backoff), HMAC security, idempotency • limits — Throughput soft/hard limits per plan, 2.1x penalty multiplier, rate limiting behavior

• prepare_transactions__prepare_transactions_evmFree

  Build unsigned EVM transactions ready for signing. Returns the raw unsigned transaction hex and fee details. After preparing, use a signing tool (e.g. evm_sign) to sign locally, then broadcast via broadcast_signed_transaction. Actions: • prepare-transaction-from-address: Build an unsigned native coin transfer (e.g. ETH, BNB) • prepare-fungible-token-transfer: Build an unsigned ERC-20 token transfer • prepare-nft-transfer: Build an unsigned ERC-721 NFT transfer Credits by action (source: OpenAPI): • prepare-fungible-token-transfer: 24 • prepare-nft-transfer: 24 • prepare-transaction-from-address: 24 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• prepare_transactions__prepare_transactions_kaspaFree

  Build unsigned Kaspa transactions ready for signing. Returns the unsigned transaction and fee details. After preparing, sign locally (kaspa_sign) and broadcast via broadcast_signed_transaction. Actions: • native-coins: Build an unsigned native KAS transfer, supporting multiple recipients in one transaction Credits by action (source: OpenAPI): • native-coins: 60 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• prepare_transactions__prepare_transactions_solanaFree

  Build unsigned Solana transactions ready for signing. Returns the unsigned transaction and fee details. After preparing, sign locally and broadcast via broadcast_signed_transaction. Actions: • native-coins: Build an unsigned native SOL transfer • spl-tokens: Build an unsigned SPL token transfer Credits by action (source: OpenAPI): • native-coins: 180 • spl-tokens: 240 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• prepare_transactions__prepare_transactions_tezosFree

  Build unsigned Tezos operations ready for signing. Returns the forged (unsigned) operation bytes and fee details. After preparing, sign locally and broadcast via broadcast_signed_transaction. Actions: • native-coins: Build an unsigned native XTZ transfer • fa1-2-tokens: Build an unsigned FA1.2 token transfer • fa2-tokens: Build an unsigned FA2 token transfer Credits by action (source: OpenAPI): • fa1-2-tokens: 104 • fa2-tokens: 104 • native-coins: 78 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• prepare_transactions__prepare_transactions_tronFree

  Build unsigned Tron transactions ready for signing. Returns the unsigned transaction and fee details. After preparing, sign locally (tron_sign) and broadcast via broadcast_signed_transaction. These are Tron's dedicated prepare-transactions endpoints, distinct from the generic EVM ones used for other chains. Actions: • native-coins: Build an unsigned native TRX transfer • trc20-tokens: Build an unsigned TRC-20 token transfer • non-fungible-tokens: Build an unsigned TRC-721/TRC-1155 NFT transfer Credits by action (source: OpenAPI): • native-coins: 90 • non-fungible-tokens: 128 • trc20-tokens: 120 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• prepare_transactions__prepare_transactions_utxoFree

  Build unsigned UTXO transactions ready for signing (Bitcoin, Bitcoin Cash, Litecoin, Dogecoin, Dash, Zcash). Returns the unsigned transaction and fee details. After preparing, sign locally (utxo_sign) and broadcast via broadcast_signed_transaction. Actions: • native-coins: Build an unsigned native coin transfer, supporting multiple recipients in one transaction. Requires either feePriority or exactFee. Credits by action (source: OpenAPI): • native-coins: 530 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• prepare_transactions__prepare_transactions_xrpFree

  Build unsigned XRP transactions ready for signing. Returns the unsigned transaction and fee details. After preparing, sign locally (xrp_sign) and broadcast via broadcast_signed_transaction. Actions: • native-coins: Build an unsigned native XRP transfer Credits by action (source: OpenAPI): • native-coins: 60 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• prepare_transactions__system_infoFree

  CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockchain events), pay-as-you-go • callbacks — Webhook mechanics: URL requirements, retry strategy (5 retries, exponential backoff), HMAC security, idempotency • limits — Throughput soft/hard limits per plan, 2.1x penalty multiplier, rate limiting behavior

• simulate__simulate_evmFree

  Dry-run an Ethereum transaction without broadcasting it to the network (mainnet or sepolia only — this endpoint does not support other EVM chains). Returns estimated gas usage, execution success/failure, and any revert reason. Use this to validate transactions before signing and broadcasting — helpful for catching errors, estimating costs, and debugging contract interactions. Credits per call: 48 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• simulate__system_infoFree

  CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockchain events), pay-as-you-go • callbacks — Webhook mechanics: URL requirements, retry strategy (5 retries, exponential backoff), HMAC security, idempotency • limits — Throughput soft/hard limits per plan, 2.1x penalty multiplier, rate limiting behavior

• transactions_data__system_infoFree

  CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockchain events), pay-as-you-go • callbacks — Webhook mechanics: URL requirements, retry strategy (5 retries, exponential backoff), HMAC security, idempotency • limits — Throughput soft/hard limits per plan, 2.1x penalty multiplier, rate limiting behavior

• transactions_data__transactions_data_evmFree

  Transactions Data EVM: get transaction details, internal transactions, token transfers, or logs by transaction hash. Actions: get-transaction-details, list-internal-transactions, list-token-transfers, list-logs. Credits by action (source: OpenAPI): • get-transaction-details: arbitrum 192, avalanche 216, base 144, binance-smart-chain 300, ethereum 120, ethereum-classic 156, optimism 168, polygon 240, tron 180 • list-internal-transactions: arbitrum 512, avalanche 576, base 384, binance-smart-chain 800, ethereum 320, ethereum-classic 416, optimism 448, polygon 640, tron 480 • list-logs: arbitrum 192, avalanche 216, base 144, binance-smart-chain 300, ethereum 120, ethereum-classic 156, optimism 168, polygon 240, tron 180 • list-token-transfers: arbitrum 352, avalanche 396, base 264, binance-smart-chain 550, ethereum 220, ethereum-classic 286, optimism 308, polygon 440, tron 330 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• transactions_data__transactions_data_kaspaFree

  Transactions Data Kaspa: get transaction details by transaction ID. Network: mainnet. Credits per call: 918 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• transactions_data__transactions_data_solanaFree

  Transactions Data Solana: get transaction details by transaction hash (signature). Networks: mainnet, devnet. Credits per call: 90 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• transactions_data__transactions_data_utxoFree

  Transactions Data UTXO: get transaction details or raw transaction data by hash. Actions: get-transaction-details, get-raw-transaction-data. Blockchains: bitcoin, bitcoin-cash, litecoin, dogecoin, dash, zcash. Networks: mainnet, testnet. Credits by action (source: OpenAPI): • get-raw-transaction-data: bitcoin 110, bitcoin-cash 132, dash 121, dogecoin 121, litecoin 121, zcash 143 • get-transaction-details: bitcoin 110, bitcoin-cash 132, dash 121, dogecoin 121, litecoin 121, zcash 143 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• transactions_data__transactions_data_xrpFree

  Transactions Data XRP: get transaction details by transaction hash. Networks: mainnet, testnet. Credits per call: 110 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• utils__derive_addressesFree

  Utils: derive HD wallet (xPub, yPub, zPub) change or receiving addresses without syncing. GET /utils/{blockchain}/{network}/xpubs/{extendedPublicKey}/derive-addresses Derives up to 10 addresses. By default creates receiving/deposit address; set isChange=true for change address (UTXO only). Credits by action (source: OpenAPI): • binance-smart-chain: 25 • bitcoin: 10 • bitcoin-cash: 12 • dash: 11 • dogecoin: 11 • ethereum: 10 • ethereum-classic: 13 • litecoin: 11 • tron: 15 • xrp: 10 • zcash: 13 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• utils__evm_utilsFree

  EVM utils (Utils product): validate address, decode raw transaction hex. Actions: • validate-address: Check if an EVM address is valid • decode-raw-transaction: Decode a raw transaction hex Blockchain → Networks: • ethereum: mainnet, sepolia • ethereum-classic: mainnet, mordor • binance-smart-chain: mainnet, testnet • tron: mainnet, nile Credits by action (source: OpenAPI): • decode-raw-transaction: binance-smart-chain 25, ethereum 10, ethereum-classic 13, tron 15 • validate-address: binance-smart-chain 25, ethereum 10, ethereum-classic 13, tron 15 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• utils__system_infoFree

  CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockchain events), pay-as-you-go • callbacks — Webhook mechanics: URL requirements, retry strategy (5 retries, exponential backoff), HMAC security, idempotency • limits — Throughput soft/hard limits per plan, 2.1x penalty multiplier, rate limiting behavior

• utils__utxo_utilsFree

  UTXO utils (Utils product): validate address, decode raw transaction hex, convert Bitcoin Cash address. Actions: • validate-address: Check if a UTXO address is valid • decode-raw-transaction: Decode a raw transaction hex • convert-bitcoin-cash-address: Convert Bitcoin Cash address (legacy ↔ cash format); Bitcoin Cash only, no blockchain parameter (network + address) Blockchain → Networks: • bitcoin: mainnet, testnet • bitcoin-cash: mainnet, testnet • litecoin: mainnet, testnet • dogecoin: mainnet, testnet • dash: mainnet, testnet • zcash: mainnet, testnet Credits by action (source: OpenAPI): • convert-bitcoin-cash-address: bitcoin-cash 12 • decode-raw-transaction: bitcoin 10, bitcoin-cash 12, dash 11, dogecoin 11, litecoin 11, zcash 13 • validate-address: bitcoin 10, bitcoin-cash 12, dash 11, dogecoin 11, litecoin 11, zcash 13 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• utils__xrp_utilsFree

  XRP utils (Utils product): validate address, decode/encode X-Address. Actions: • validate-address: Check if an XRP address is valid • decode-x-address: Decode X-Address to classic address and tag • encode-x-address: Encode classic address and tag to X-Address Networks: mainnet, testnet Credits by action (source: OpenAPI): • decode-x-address: 10 • encode-x-address: 10 • validate-address: 10 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

• Code scan10 source files scanned25/25
• Live reliabilityremote reachable in 1818ms20/20
• Tool poisoning60 tool descriptions checked13/15
• Auth qualityAPI key sent as a header8/15
• Maintenancelast push 5 days ago15/15
• Maintainer identityregistry namespace matches repository owner7/10

Safety score

88/100

higher than 85% of 2,174 E-commerce servers

Tools

60

the typical E-commerce server has 6

Tools that change things

2%

typical: 0%. Fewer write tools means less an agent can break

Uptime

100%

of our recent checks; the typical remote E-commerce server answers 100%

Response time

1,011 ms

faster than 10% of 1,527 E-commerce servers

Downloads a week

103

more than 68% of 411 E-commerce servers with a package

CryptoAPIs Io: common questions

Is CryptoAPIs Io MCP server safe?

Yes, by our scan: it is graded A (88/100). Read the CryptoAPIs Io safety report

How do I install CryptoAPIs Io?

It runs remotely at ai.cryptoapis.io. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.

Does CryptoAPIs Io need an API key?

Yes. The registry entry asks for CRYPTOAPIS_API_KEY, x-api-key.

Is CryptoAPIs Io maintained?

The last commit was 14 days ago (2026-10-20). The latest release is v0.5.0.

Is CryptoAPIs Io up?

100% of our last 28 checks got an answer. We check remote servers about four times a day.

What can I use instead of CryptoAPIs Io?

Servers from other publishers that do the same job: PostHog MCP Server, Loki Mode MCP server and New-Term Radar MCP server.

How does CryptoAPIs Io compare with other E-commerce MCP servers?

safety score 88/100 (higher than 85% of 2,174 E-commerce servers); tools 60 (the typical E-commerce server has 6); tools that change things 2% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.