Privi Quantum Ledger MCP server

• ai_act_checkFree

  What a customer's due-diligence or a regulator would flag today: prohibited practices, incomplete Article 5 screens, obligations already in force without evidence (critical), obligations due within 180 days (medium), upcoming high-risk duties, and high-risk systems with no recent log. Requires the organization API key.

• ai_act_exportFree

  Export your AI Act register as JSON to hand to customers, auditors or regulators, with its SHA-256 sealed on chain so anyone can prove it was not edited afterwards (check with ai_act_verify_export). Requires the organization API key.

• ai_act_registerFree

  Your EU AI Act register: each AI system's current record, tier and applicable obligations. Requires the organization API key.

• ai_act_system_saveFree

  Add or update an AI system in your company's EU AI Act register. Privi screens it against the Article 5 bans, classifies it (prohibited / high-risk / transparency / general-purpose / minimal), and lists the obligations that apply to your role with their dates. Every change is versioned and written to your tamper-evident 'ai-act' log. Requires the organization API key.

• ai_act_verify_exportFree

  Check that an AI Act register a supplier or partner sent you is exactly what they exported from Privi, and return its on-chain seal. Free; no key needed.

• approval_cancelwrite actionFree

  Withdraw an approval request (or revoke an approval not yet used). Your key cannot approve, only cancel. Requires the organization API key.

• approval_listFree

  Your organization's approval requests, newest first. Requires the organization API key.

• approval_policy_setFree

  Make mandate_spend pause for a human on large payments: any payment over the threshold creates an approval request that the mandate's principal must sign with their wallet before the agent can spend. Requires the organization API key.

• approval_requestFree

  Ask a human to approve (or deny) an action. Returns approve_url for them: they read the request and sign with their wallet (free, no transaction). Your agent then calls approval_wait, or watches your live channel for approval.approved. Only the named wallet can decide; your API key can only cancel. Requires the organization API key.

• approval_statusFree

  Status of an approval request: pending, approved, denied, expired or cancelled, with the human's wallet signature once they decide. Free.

• approval_waitFree

  Block until the human decides (or timeout_s passes). Returns the current status; if still pending, call again. Free.

• fortress_keysFree

  Privi's public signing keys: Ed25519 and ML-DSA-87 (NIST FIPS 204, CNSA 2.0 post-quantum). Pin these to verify Privi signatures offline. Free.

• fortress_tpi_executewrite actionFree

  Consume a two-person authorization right before performing the action. Single use; refused unless authorized. Requires the organization API key.

• fortress_tpi_listFree

  Your organization's two-person requests. Requires the organization API key.

• fortress_tpi_policyFree

  Define a Two-Person Integrity policy: which officers can approve, and how many distinct approvals an action needs. Requires the organization API key.

• fortress_tpi_requestFree

  Ask officers to authorize a sensitive action under a two-person policy. Returns approve_url for the officers; each signs with their wallet. Do not act until fortress_tpi_status shows 'authorized', then call fortress_tpi_execute. Requires the organization API key.

• fortress_tpi_statusFree

  Status of a two-person request (pending, authorized, vetoed, expired, executed) and who approved. Free.

• gateway_createwrite actionFree

  Put your MCP server behind Privi. You get an HTTP URL and a WebSocket URL that forward to it unchanged (x402 payments keep working) while Privi rate-limits callers, optionally requires a Privi Passport, meters every tool call and writes each call to your tamper-evident log. The kill switch stops the gateway instantly. Upstream must be public HTTPS. Requires the organization API key.

• gateway_deletewrite actionFree

  Turn a gateway off. Its URLs stop working at once; history stays in your log. Requires the organization API key.

• gateway_infoFree

  Public description of a gateway: where it forwards, whether callers need a Passport, its rate limit and its call counts. Free.

• gateway_listFree

  Your organization's gateways. Requires the organization API key.

• gateway_set_guardFree

  Turn Privi Guard on for every tool result that passes through your gateway: tag adds the verdict and a receipt id in result._meta['privi/guard']; block also replaces injected results with an error before your agents see them. Each result is one Guard check (free allowance, then credits). Requires the organization API key.

• gateway_statsFree

  Calls, errors, denials and x402 payment prompts per tool and per day for one of your gateways, plus your monthly quota. Requires the organization API key.

• gov_ai_inventoryFree

  Your agency's AI use case inventory: the current version of each record. Requires the organization API key.

• gov_ai_inventory_checkFree

  Flags what an OMB M-25-21 review would flag before you submit: missing required fields, PII without a Privacy Impact Assessment, and high-impact AI in pilot or deployment missing any minimum risk practice (testing, impact assessment, independent review, monitoring, operator training, fail-safe, appeals, public feedback) or without a recently active activity log as monitoring evidence. Requires the organization API key.

• gov_ai_inventory_exportFree

  Machine-readable CSV of your publicly releasable AI use cases (for publishing at agency.gov/ai), with its SHA-256 sealed on chain (Base, until the Privi chain mainnet) so the published file can be proven unaltered. Requires the organization API key.

• gov_ai_usecase_saveFree

  Add or update an entry in your agency's AI use case inventory (OMB M-25-21). Every change creates a new version and is written to your tamper-evident 'ai-inventory' log. Requires the organization API key.

• gov_ai_verify_exportFree

  Check that a published AI inventory file is exactly what the agency exported from Privi Ledger, and return its on-chain seal. Free; no key needed.

• gov_pqc_classifyFree

  Classify cryptographic algorithms as quantum-vulnerable (RSA, ECDH, ECDSA, EdDSA, DH, DSA, MQV), post-quantum (ML-KEM, ML-DSA, SLH-DSA), hybrid, symmetric/hash, or unknown. Free.

• gov_pqc_exportFree

  Export the full cryptographic inventory (CBOM) and migration plan as one JSON document for OMB, the CIO or auditors, with its SHA-256 sealed on chain (Base, until the Privi chain mainnet). Requires the organization API key.

• gov_pqc_inventoryFree

  Current cryptographic inventory of your systems. Requires the organization API key.

• gov_pqc_planFree

  Prioritized post-quantum migration plan: every quantum-vulnerable asset ranked (High Value Assets, high-impact systems and long-lived sensitive data first; key establishment before signatures), with its deadline (key establishment Dec 31 2030, signatures Dec 31 2031), recommended NIST replacement, progress metrics, and findings (missed deadlines, TLS below 1.3, no target dates, unrecognized algorithms). Requires the organization API key.

• gov_pqc_system_saveFree

  Record the cryptographic inventory (CBOM) of one system for post-quantum migration. Every change creates a new version and is written to the agency's tamper-evident 'pqc-inventory' log. Scanners and agents can submit results directly. Requires the organization API key.

• gov_pqc_verify_exportFree

  Check that a CBOM and migration-plan document is exactly what was exported from Privi Ledger and return its on-chain seal. Free; no key needed.

• guard_balanceFree

  Your free checks left this month and your prepaid credits. Needs the organization key.

• guard_buy_creditswrite actionFree

  Buy prepaid Privi Guard checks in USDC on Base via x402. Credits never expire and are used after the free monthly allowance. Needs the organization key.

• guard_checkFree

  Check content for prompt injection (inbound) or leaked secrets and personal data (outbound) before an agent acts on it or sends it. Returns allow / warn / block, the findings, a redacted copy for outbound secrets, and an Ed25519-signed receipt anchored on-chain, which proves the check happened. Privi does not store the text. Free for 1,000 checks a month with an organization key; otherwise 1 cent per check in USDC via x402.

• guard_check_manyFree

  Check up to 50 texts in one call (for example every tool result in a step). Each item is billed as its own check against your free allowance or credits and gets its own receipt. Needs an organization key.

• guard_pricingFree

  What Privi Guard checks, what it costs, and how receipts work. Free.

• guard_receiptFree

  Verify a Privi Guard receipt: the signed body, signature validity and its Merkle proof into the anchored transparency log. Free; anyone holding the id can verify it.

• kya_bind_walletFree

  Step 2: bind the wallet to your organization's Privi Passport so its transactions pass KYA checks. With a wallet signature the binding is *proven*; without one it is only *declared* (most checkers require proven). Requires the organization API key.

• kya_challengeFree

  Step 1 of binding a wallet to your Privi Passport: get a message to sign with that wallet (EIP-191 personal_sign). Valid 30 minutes. Requires the organization API key.

• kya_checkFree

  Know-Your-Agent for blockchains: is this wallet operated by an audited AI agent, and how trustworthy is it right now? Resolves the address to its organization and live Privi Passport and returns allow/deny with reasons, plus a Privi-signed attestation (valid 60 min) you can cache. For chains, DeFi protocols, exchanges, stablecoin issuers and x402 facilitators. Free; send your organization key to log the check as evidence.

• kya_unbind_walletwrite actionFree

  Remove a wallet from your Passport (rotated or compromised key). KYA checks deny it immediately. Requires the organization API key.

• kya_walletsFree

  Wallets bound to your organization and how each was proven. Requires the organization API key.

• ledger_audit_streamFree

  Check whether an agent's action log is intact: entry count, time span, action and failure counts, head hash, and where tampering broke the chain if it did. Does not reveal the actions themselves. Paid per call via x402.

• ledger_check_receiptFree

  Confirm that an action receipt exists in the ledger and when it was recorded. Reveals no action contents. Free.

• ledger_compliance_reportFree

  Audit-ready report of your AI agents' activity for a period (SOC 2 evidence, security questionnaires, AI-regulation record keeping): actions by type, failures, human approvals, log integrity, on-chain status, and findings. The report's hash is anchored on the Privi blockchain so it cannot be edited later without detection. Requires the organization API key.

• ledger_consistency_proofFree

  Proof that Privi's log only grew between two signed tree heads: nothing recorded earlier was edited, removed or reordered (RFC 9162). Free.

• ledger_evidence_bundleFree

  Export a self-contained evidence package for auditors, courts or air-gapped systems: every entry, the hash chain, an RFC 9162 inclusion proof, the signed tree head, on-chain checkpoint and Privi's keys, signed with Ed25519 and ML-DSA-87. Verify offline with verify_bundle.py (GET /tools/verify_bundle.py). Requires the organization API key.

• ledger_handshake_acceptFree

  Accept a handshake addressed to your organization: records the same terms in your log, confirms it in the other company's log, and seals the matched pair on chain (Base). Requires your organization API key. Read the terms first with ledger_handshake_inbox.

• ledger_handshake_inboxFree

  Handshakes sent to and from your organization, newest first, with their terms and status. Requires your organization API key.

• ledger_handshake_offerFree

  Start a Privi Handshake: a two-sided record of a dealing with another company's agent (payment, data transfer, delivery, agreement). Recorded in your log now; when the other company accepts, both logs hold matching entries and the pair is sealed on chain (Base). Requires your organization API key; the other company must also use Privi Ledger.

• ledger_handshake_rejectFree

  Reject a handshake addressed to your organization; the other company's log records the rejection. Requires your organization API key.

• ledger_handshake_verifyFree

  Public check of a handshake: both companies, status, whether both matching log entries still exist, and the on-chain seal. Never reveals the terms. Free; useful for disputes and audits.

• ledger_inclusion_proofFree

  Merkle audit path proving an entry is in Privi's append-only transparency log (RFC 9162). Verifiable offline against the signed tree head. Reveals no entry contents. Free.

• ledger_list_streamsFree

  List your organization's streams with entry counts. Requires the organization API key.

• ledger_planFree

  Your plan, entries used this month, the limit, and when a Pro plan renews. Requires your organization API key.

• ledger_pricingFree

  List Privi Ledger tools, what each costs, and how to get an organization key.

• ledger_read_streamFree

  Read your organization's entries in a stream, oldest first, with an integrity check of the whole stream. Requires the organization API key.

• ledger_record_actionFree

  Append an action to the organization's tamper-evident log. Returns the entry with its entry_hash receipt. Requires the organization API key.

• ledger_report_pdfFree

  A finished PDF of a sealed compliance report, for auditors and customers. Returned as base64 (pdf_base64) and as an embedded PDF resource; also downloadable at /reports/<report_id>.pdf with the organization key. Requires the organization API key.

• ledger_signupwrite actionFree

  Create a Privi Ledger organization on the free plan and get its API key (shown once; store it). Free plan: up to the monthly entry limit, all tools included. Upgrade any time with ledger_upgrade_pro. No key needed to sign up.

• ledger_tree_headFree

  The latest signed tree head of Privi's transparency log: an RFC 9162 Merkle root over every entry ever recorded, signed with Ed25519 and ML-DSA-87, and periodically anchored on chain (Base). Free.

• ledger_upgrade_prowrite actionFree

  Buy 30 days of Privi Ledger Pro (unlimited entries) for your organization, paid in USDC on Base via x402. Each call adds 30 days. Requires your organization API key.

• ledger_verify_reportFree

  Check that a compliance report is unaltered: recomputes its hash, confirms Privi Ledger issued it, and checks the anchor on chain (Base, until the Privi chain mainnet). Free; no key needed.

• live_infoFree

  Real-time Privi: WebSocket and server-sent-event streams (trust changes, your own audit tail, approvals), a kill switch, human approvals, a metered MCP gateway and paid agent-to-agent rooms. Returns the endpoints, channels, frames and what each plan gets. Free; no key needed.

• live_killwrite actionFree

  Stop an agent at once: mandate_spend, your gateways and your room messages are refused until live_resume. Takes effect on the next call, and is pushed to your live channel immediately. Audit logging keeps working. Requires the organization API key.

• live_resumeFree

  Lift a kill switch set with live_kill. Requires the organization API key.

• live_statusFree

  Your kill switches, live-approval thresholds, pending approvals, gateways, rooms and usage this month. Requires the organization API key.

• mandate_checkFree

  For merchants, payment facilitators and counterparties: did a human authorize this AI agent to pay you this amount? Verifies the human's wallet signature, status, expiry, per-payment cap, remaining budget and payee list, and returns allow/deny with reasons plus a Privi-signed attestation. Free; no key needed.

• mandate_createwrite actionFree

  Draft a Privi Mandate: the human's signed permission for your agent to spend, with a budget, per-payment cap, allowed payees and expiry. Returns sign_url: send it to the human, who reads the plain-English terms and signs once with their wallet (free, no transaction). Nothing can be spent until they sign. Requires the organization API key.

• mandate_getFree

  Public view of a mandate: terms, status, the human's signature, spent and remaining budget, and recent spends. Free.

• mandate_listFree

  Your organization's mandates with status and remaining budget. Requires the organization API key.

• mandate_revokeFree

  Stop an agent from spending under a mandate (the human can also revoke from the sign_url page). Requires the organization API key.

• mandate_spendFree

  Call before each payment: checks the mandate and, if allowed, deducts the amount from the budget and records the payment in the agent's tamper-evident log. Refused payments are logged as blocked. Refused at once if the kill switch is on. Over the organization's live-approval threshold it returns approval_required with an approve_url for the human; call again with approval_id once they approve. Requires the organization API key.

• mcp_server_checkFree

  Free safety check for any remote MCP server, before an agent connects to it or after it was approved. Privi reads the server's tool list (it never calls a tool) and returns a verdict: ok, caution, danger (tool poisoning: hidden instructions, concealment from the user, requests for keys or private files, tool shadowing, invisible characters), changed (tools differ from expected_tools_hash), unverified (tools behind auth) or unreachable. Also returns the tools_hash to pin, a grade A-F and a link to the server's public history. Every first observation and change is recorded in Privi's on-chain-anchored transparency log. No key needed.

• passport_gateFree

  One-call allow/deny decision before transacting with another AI agent: verifies its Privi Passport and applies your minimums, returning the reasons. If you send your organization API key the decision is recorded in your own tamper-evident log as due-diligence evidence. Free.

• passport_issueFree

  Issue a Privi Passport: a signed, on-chain-anchored trust credential for your agent or organization, scored 0-1000 (grade A-E) from verified history, integrity, anchoring, reliability, human oversight, compliance reports and confirmed handshakes. Show it to counterparties; they verify it free with passport_verify / passport_gate. Valid 30 days. Free on Pro/enterprise; free-plan organizations pay per passport via x402. Requires the organization API key.

• passport_listFree

  Your organization's issued passports with score, grade, expiry and revocation. Requires the organization API key.

• passport_revokeFree

  Revoke one of your passports (e.g. an agent was retired or compromised). Verifiers see it immediately. Requires the organization API key.

• passport_verifyFree

  Check an AI agent's Privi Passport before trusting it: Privi signature, content unaltered, not expired or revoked, anchor on chain (Base), and a live re-score of the agent right now (so tampering after issue is caught). Free; no key needed.

• privi_payment_optionsFree

  See existing USDC/x402 service billing and separately gated valueless PRVI_TEST development mode.

• privi_test_payment_quoteFree

  Off-chain PRVI_TEST quote. Requires organization key and explicit test mode. Never takes money.

• privi_test_payment_simulateFree

  Consume a test quote once. Receipt is NOT payment, on-chain proof or entitlement.

• privi_token_marketFree

  PRIVI on Base: price, how much PRIVI and USDC the Privi swap desk holds (so whether a swap can fill), any Uniswap v3 / Aerodrome pools, and optionally a swap quote. Every paid Privi tool also accepts PRIVI. Free.

• qledger_blockFree

  One quantum-sealed block with its signatures, settlement on chain and a validity check. Free.

• qledger_entry_proofFree

  Prove an entry (by its receipt hash) is sealed in a quantum block: the block, its post-quantum signatures, its on-chain settlement and the Merkle inclusion proof. Reveals no entry contents. Free.

• qledger_sealFree

  Seal your newest entries into a quantum block now instead of waiting for the next scheduled block (every few minutes). Does nothing if no entries are waiting. Requires the organization API key.

• qledger_statusFree

  Privi Quantum Ledger: latest quantum-sealed block (SHA3-512, ML-DSA-87 + Ed25519), entries waiting for the next block, the Privi Foundation chain it is fused with, and signing keys. Free.

• qledger_verify_chainFree

  Verify the whole Quantum Ledger: SHA3-512 block hashes, hash links, both signatures on every block, and for recent blocks the log roots, entry roots and RFC 9162 consistency proofs. Free; anyone can run it.

• room_closeFree

  Close a room and seal its transcript: the hash is signed (Ed25519 + ML-DSA-87), anchored on chain (Base) and written to both organizations' logs. Either party can close. Requires the organization API key.

• room_infoFree

  Public facts about a room: parties, price, message count, head hash and its seal once closed. No message text. Free.

• room_listFree

  Rooms your organization owns or joined. Requires the organization API key.

• room_openFree

  Open a live, hash-chained conversation room for two organizations' agents. Both connect over WebSocket (ws_url), authenticate with their API keys and talk in real time; closing the room seals the transcript on the Privi chain. Optionally charge per message, paid under the guest's human-signed Mandate. Requires the organization API key.

• room_transcriptFree

  Every message in a room you are part of, with the chain check. Requires the organization API key.

• room_verifyFree

  Check a closed room's seal (signature, on-chain anchor) and, if you pass the transcript, that it is complete and unaltered. Free; no key needed.

• scan_changesFree

  The latest MCP servers whose tool definitions changed after they were first observed (possible rug pulls), newest first. Subscribe to the Live channel 'scan' for these as they happen. Free.

• scan_claim_startFree

  Start proving you operate an MCP server listed in Privi Scan. Returns a token to publish at https://<your host>/.well-known/privi-scan.txt. Verified owners get an owner-verified badge, unlimited rescans, change alerts and control over the listing. Needs the org key (create_org is free).

• scan_claim_verifyFree

  Check the token at /.well-known/privi-scan.txt and mark your organization as the verified owner.

• scan_owner_listingFree

  Verified owners only: hide the server from the directory (opt-out) or show it again. History already in the transparency log cannot be removed.

• scan_rescanFree

  Probe the server immediately instead of waiting for the next crawl (every ~6 hours). For the verified owner or Pro organizations.

• scan_searchFree

  Search Privi Scan, the public directory of remote MCP servers from the official MCP Registry, each with a safety grade, verdict, tool count and change history. Use it to find a trustworthy server for a job. Free.

• scan_serverFree

  Full report for one MCP server: every tool definition with its hash, all findings with evidence, the change history (what was added, removed or modified, and when) and the transparency-log proof. Free.

• scan_statsFree

  How many MCP servers Privi Scan tracks, by status and grade, tools indexed, changes recorded and how to verify the evidence. Free.

• scan_unwatchwrite actionFree

  Remove a server from your watchlist. Needs the org key.

• scan_watchFree

  Pin the server's current tools as approved and get a real-time event on your private Live 'org' channel the moment they change, a risk appears or the server goes down. Free plan: 3 servers; Pro: 500. Needs the org key.

• scan_watchlistFree

  Your watched servers with their pinned tools_hash and whether each has drifted since you pinned it. Needs the org key.

• seal_contentFree

  Seal content your company publishes (documents, images, video, press releases, invoices, AI output) with who made it and whether AI was involved. Each seal is anchored on chain; anyone can check a file for free at the returned verify_url or with seal_verify. Counts toward your plan's monthly entries. Requires the organization API key.

• seal_listFree

  Your most recent content seals. Requires the organization API key.

• seal_revokeFree

  Withdraw one of your seals (e.g. sealed by mistake). Checks then show it as revoked. Requires the organization API key.

• seal_verifyFree

  Is this exact file or text sealed, by whom, since when, and did they declare AI involvement? Any change to the content (one pixel, one character) means no match. Free; no key needed.

• supplier_cert_revokeFree

  Revoke a certificate you issued (as the buyer). Verification shows it as revoked at once. Requires the organization API key.

• supplier_cert_verifyFree

  Check a Privi supplier certificate: untampered, not revoked, not expired, which buyer approved which supplier, and (optionally) whether a document is one it covers. Free; no key needed.

• supplier_certsFree

  Certificates you issued (as buyer) or hold (as supplier). Requires the organization API key.

• supplier_proof_decideFree

  Approve a supplier's proof (issues a certificate naming both companies and the evidence fingerprints, sealed on chain, with a public verify page and badge) or reject it with a reason. Requires the organization API key.

• supplier_proof_inboxFree

  Supplier submissions waiting for your decision (as the buyer). Requires the organization API key.

• supplier_proof_submitwrite actionFree

  Answer a buyer's supplier requirement with fingerprints of your evidence documents. The buyer reviews and, if approved, Privi issues a certificate sealed on chain. Requires your organization API key (sign up free with ledger_signup).

• supplier_requirement_createwrite actionFree

  Publish a requirement your suppliers must meet. Share the returned invite_url with them: they answer it from their own Privi organization (free sign-up) and you approve or reject in supplier_proof_inbox. Requires the organization API key.

• supplier_requirement_getFree

  See what a buyer requires of its suppliers. Free; no key needed.

• trust_eventsFree

  The latest trust-change events: passports issued, revoked or re-scored, wallets bound or unbound, mandates activated or revoked, transparency-log heads anchored. Without a Pro key the feed is delayed (see live_info); use the WebSocket or SSE stream for real time. Free.

• –Code scanremote-only server, no package to scann/a
• Live reliabilityremote reachable in 916ms20/20
• Tool poisoning121 tool descriptions checked15/15
• Auth qualityopen endpoint exposes 13 write-action tools with no auth3/15
• Maintenancelast push 0 days ago15/15
• Maintainer identityregistry namespace matches repository owner6/10

Safety score

79/100

higher than 58% of 48,255 servers

Tools

121

the typical server has 7

Tools that change things

11%

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

Uptime

79%

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

Response time

66 ms

faster than 90% of 30,031 servers

Grade history

• 2026-10-28restoreD → Bscore 79: Write-action tools reachable without authentication

Privi Quantum Ledger: common questions

Is Privi Quantum Ledger MCP server safe?

Mostly: it is graded B (79/100). Read the Privi Quantum Ledger safety report

How do I install Privi Quantum Ledger?

It runs remotely at privi-ledger.onrender.com. 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 Privi Quantum Ledger need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is Privi Quantum Ledger maintained?

The last commit was 7 days ago (2026-10-28). The latest release is v0.12.1.

Is Privi Quantum Ledger up?

79% of our last 28 checks got an answer. We check remote servers about four times a day.

How does Privi Quantum Ledger compare with other MCP servers?

safety score 79/100 (higher than 58% of 48,255 servers); tools 121 (the typical server has 7); tools that change things 11% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.