{"name":"money.barker/stablecoin-yield","slug":"barker-stablecoin-yield","title":null,"description":"Barker's real-time stablecoin yield index + AI advisor + non-custodial deposit/redeem (x402 paid).","url":"https://mcp.market/server/barker-stablecoin-yield","rating":null,"grade":"A","score":87,"certified":false,"status":"active","category":"other","tags":[],"presence":{"score":29,"stars":3,"forks":1,"downloads_week":null,"last_push_at":"2026-09-19T09:00:57.000Z","license":"MIT"},"uptime":{"percent":100,"checks":28,"ok":28,"last_checked_at":"2026-11-04T10:50:36.210Z","last_ok_at":"2026-11-04T10:50:36.210Z","latency_ms":1051},"claimed":false,"transport":"remote","callable_via_gateway":true,"default_price_micros":0,"repository":"https://github.com/barkermoney/barker-mcp","website":"https://barker.money","version":"1.0.4","remotes":[{"type":"streamable-http","url":"https://mcp.barker.money/mcp"}],"packages":[],"tools":[{"name":"barker_crosschain_routes","description":"Barker's cross-chain route availability for a stablecoin from a given chain (bridge/venue coverage). Use for 'bridge USDC from arbitrum', '跨链路径'. (paid: $0.01 per call via x402)","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"from_chain":{"type":"string","description":"Origin chain (lowercase)"},"symbol":{"type":"string","description":"Stablecoin symbol (lowercase)"}},"required":["from_chain","symbol"]}},{"name":"barker_defi_vaults","description":"Query real-time stablecoin supply yield pools from Barker's index of 500+ DeFi protocols. Returns ranked rows with protocol_name, chain_name, asset_symbol, supply_apy_total (decimal — multiply by 100 for %), and supply_tvl (USD). Use for questions like 'best stablecoin yield', 'where to earn on USDC', 'compare lending rates', '稳定币利率'. (paid: $0.001 per call via x402)","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"asset":{"type":"string","description":"Stablecoin symbol (lowercase): usdt, usdc, dai, usde, usds, fdusd, gho, crvusd, pyusd, sdai, frxusd, tusd, lusd, dola, etc."},"chain":{"type":"string","description":"Chain name (lowercase): ethereum, bsc, arbitrum, base, polygon, optimism, avalanche, solana, etc."},"sort":{"type":"string","enum":["apy","tvl"],"description":"Sort key"},"limit":{"type":"integer","minimum":1,"maximum":100,"description":"Row count (default 50, max 100)"}}}},{"name":"barker_executable_pools","description":"EXECUTION DISCOVERY: which stablecoin vaults in Barker's index support direct deposit/redeem through barker_execution_quote. Returns executable pools with adapter support, live deposit capacity (is_full) and APY/TVL. Call this before barker_execution_quote — every pool listed here can be quoted, and its pool_uid is the exact string that tool expects (its vault_token_address works there too). Skip this call entirely if you already know the vault contract address. All parameters are optional: call with no arguments to get the top executable pools across every asset. APY unit: decimal (0.05 = 5%). Use for 'which pools can my agent actually deposit into', '哪些池子能直接存'. (paid: $0.01 per call via x402)","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"asset":{"type":"string","description":"Optional stablecoin symbol filter, case-insensitive: usdc, usdt. Omit to list all assets."},"chain":{"type":"string","description":"Optional chain filter (lowercase), e.g. base, ethereum"},"query":{"type":"string","description":"Optional pool keyword, e.g. 'Steakhouse USDC'"},"action":{"type":"string","enum":["deposit","redeem"],"description":"Filter by executable action"},"limit":{"type":"integer","minimum":1,"maximum":100,"description":"Max rows (default 20)"},"min_tvl":{"type":"number","description":"Min TVL floor in USD (default 1000000)"}}}},{"name":"barker_execution_quote","description":"EXECUTION QUOTE (non-custodial): buy an unsigned, ready-to-sign transaction that deposits into or redeems from a stablecoin vault. Returns transaction_request {chainId,from,to,data,value} + route + risk summary + approval info. Barker NEVER broadcasts and never holds funds — return the transaction to YOUR user's wallet to sign; vault shares always go to signer_address (receiver is not a parameter). Same-chain only (self/portals adapters). pool_uid takes EITHER a Barker pool_uid OR the vault contract address — if you already know the vault address, quote directly, no discovery call needed. Flow: barker_yield_advisor → barker_executable_pools → this tool → your user signs. Asset identity is resolved by the selected pool; symbols and underlying-asset token addresses are never accepted as identity (pass the VAULT contract, not the asset contract). If a pool has multiple possible underlying assets, the backend rejects ambiguity instead of guessing. Use for 'deposit 1000 USDC into this vault', '帮我把 USDC 存进这个池子（自己签名）'. (paid: $0.05 per call via x402)","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"pool_uid":{"type":"string","description":"Either the exact pool_uid from barker_executable_pools (copy verbatim), OR the vault contract address (0x + 40 hex) if that is what you already have — no discovery call needed. Both are matched exactly; partial names and keywords are rejected (POOL_NOT_FOUND), because this is a money path and Barker never guesses the pool. If one contract hosts several products (e.g. Pendle PT vs LP), you get 409 POOL_AMBIGUOUS with the exact candidates to choose from."},"chain_id":{"type":"integer","description":"Optional, only useful when pool_uid is a contract address that is deployed at the same address on several chains (e.g. Aave aTokens). EVM chain id, e.g. 8453 for Base."},"action":{"type":"string","enum":["deposit","redeem"],"description":"Default deposit"},"amount_base_units":{"type":"string","description":"Integer amount in token base units (1 USDC = 1000000). For redeem: underlying assets to withdraw. Send either this OR `amount` — not both (they are cross-checked and a mismatch is rejected)."},"amount":{"type":"string","description":"Same amount in human units (\"1000\" = 1000 USDC), converted server-side using the pool's own asset decimals. Use this if you don't want to compute base units yourself. Alternative to amount_base_units."},"signer_address":{"type":"string","description":"EVM address that will sign AND receive vault shares / redeemed assets. Mandatory — it is the tx sender and the share recipient, so Barker can never infer or default it."},"slippage":{"type":"number","description":"Optional slippage tolerance, e.g. 0.005"}},"required":["pool_uid","amount_base_units","signer_address"]}},{"name":"barker_market_overview","description":"Barker's stablecoin market snapshot: total market cap, yield-bearing cap, asset distribution, chain distribution. Use for 'stablecoin market cap', 'USDT market share', '稳定币市场份额'. share_pct fields are decimals (0.425 = 42.5%). (paid: $0.001 per call via x402)","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{}}},{"name":"barker_market_trend","description":"Barker's historical APY trend for stablecoins vs. US Treasury benchmark over a lookback window (7–180 days). Use for 'DeFi vs treasury', 'is stablecoin APY going up', 'crypto yield trend', '稳定币利率走势'. (paid: $0.001 per call via x402)","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"days":{"type":"integer","minimum":7,"maximum":180,"description":"Lookback window in days (default 30)"}}}},{"name":"barker_pool_detail","description":"Full single-pool dossier from Barker's index by pool_uid: all APY components (percent unit), TVL, terms, execution capability, reward breakdown. Use after barker_defi_vaults / barker_yield_advisor to inspect one pool. (paid: $0.005 per call via x402)","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"pool_uid":{"type":"string","description":"Pool uid from list tools"}},"required":["pool_uid"]}},{"name":"barker_pool_history","description":"Per-pool APY/TVL time series from Barker's index (default 30d, APY percent unit) for trend and volatility analysis of one pool_uid. Use for 'is this pool's APY stable', '这个池子收益稳不稳'. (paid: $0.005 per call via x402)","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"pool_uid":{"type":"string"},"days":{"type":"integer","minimum":7,"maximum":180}},"required":["pool_uid"]}},{"name":"barker_pool_search","description":"Fuzzy search Barker's pool index by keyword (protocol name / pool name / asset). Resolves natural-language pool references to pool_uid for the detail/history tools. (paid: $0.001 per call via x402)","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"keyword":{"type":"string"},"limit":{"type":"integer","minimum":1,"maximum":50}},"required":["keyword"]}},{"name":"barker_vault_position","description":"VAULT POSITION (on-chain read): current redeemable value of a wallet's ERC-4626 vault position. Pass the pool_uid (from barker_executable_pools / barker_execution_quote) and the wallet address; Barker resolves the vault contract and reads balanceOf + convertToAssets directly on-chain, returning shares and current_value in the vault's underlying asset (value_asset, e.g. USDC). Barker does not store your deposit baseline — record the principal you deposited yourself; earned = current_value - your net deposits. Use after depositing via barker_execution_quote to monitor a position: 'how much is my vault position worth now', '我存进金库的 USDC 现在值多少'. (paid: $0.001 per call via x402)","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"address":{"type":"string","description":"EVM wallet address holding the vault shares (0x + 40 hex)"},"pool_uid":{"type":"string","description":"Barker pool uid of the ERC-4626 vault, e.g. morpho-vault_base_usdc_0xee8f4ec5 (from barker_executable_pools)"}},"required":["address","pool_uid"]}},{"name":"barker_yield_advisor","description":"FLAGSHIP: 'Where should I park my stablecoins right now?' Returns a ranked top-N recommendation across Barker's DeFi yield index (500+ protocols) with data-derived reasons and risk flags per pick (APY vs market median, TVL depth, incentive-dependence, lock terms). Use for 'best place for my USDC', '钱放哪收益最好', 'recommend stablecoin yield with low risk'. APY unit: percent (6.2 = 6.2%). (paid: $0.03 per call via x402)","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"asset":{"type":"string","description":"Stablecoin symbol (lowercase): usdt, usdc, dai, usde, ..."},"chain":{"type":"string","description":"Optional chain filter (lowercase)"},"risk":{"type":"string","enum":["conservative","balanced","aggressive"],"description":"Risk band → TVL floor $10M/$1M/$100K"},"min_tvl":{"type":"number","description":"Optional explicit TVL floor (USD)"},"limit":{"type":"integer","minimum":1,"maximum":20,"description":"Top-N picks (default 5)"}}}}],"scan":{"score":87,"grade":"A","scanned_at":"2026-09-24T12:02:26.870Z","report":{"scannerVersion":"0.1.9","scannedAt":"2026-09-24T12:02:26.875Z","components":{"code":{"score":-1,"max":25,"notes":["remote-only server, no package to scan"]},"reliability":{"score":17,"max":20,"notes":["remote reachable in 4297ms"]},"poisoning":{"score":15,"max":15,"notes":["11 tool descriptions checked"]},"auth":{"score":10,"max":15,"notes":["open endpoint, read-only tools"]},"maintenance":{"score":15,"max":15,"notes":["last push 5 days ago"]},"identity":{"score":8,"max":10,"notes":["namespace and repository owner differ","GitHub account older than a year","website matches verified namespace"]}},"findings":[],"inputs":{"probes":[{"url":"https://mcp.barker.money/mcp","reachable":true,"authRequired":false,"latencyMs":4297,"serverInfo":{"name":"barker-mcp","version":"0.1.0"}}],"packages":[],"repo":{"found":true,"owner":"barkermoney","repo":"barker-mcp","archived":false,"pushedAt":"2026-09-19T09:00:57Z","stars":3,"forks":1,"openIssues":1,"ownerType":"Organization","ownerAvatarUrl":"https://avatars.githubusercontent.com/u/209673155?v=4","ownerCreatedAt":"2025-04-29T16:28:53Z","license":"MIT"},"icon":{"url":"https://barker.money/favicon.ico?favicon.d2ad3958.ico","source":"site","width":48,"height":48},"presence":{"stars":3,"forks":1,"downloadsWeek":null,"license":"MIT","lastPushAt":"2026-09-19T09:00:57.000Z","score":29}}}},"grade_history":[],"reviews":[]}