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CBROS Notary & Decision Log

eu.coudrebros/notary · v1.0.0

Measured by MCP Station

Description written by the publisher, not verified

Pay-and-anchor a hash or AI decision log on Cardano (CIP-0190). Non-custodial. MCP-native. Mainnet.

Connect

claude mcp add --transport http notary https://nftapi.coudrebros.eu/mcp/notary/

{
  "mcpServers": {
    "notary": {
      "url": "https://nftapi.coudrebros.eu/mcp/notary/"
    }
  }
}

Tools as reported by the server

• get_notary_info
  No auth needed. Price, min confirmations, spec version, and supported hash algorithms.
• prepare_anchor
  Anchors content_hash on chain. Returns a partially-signed transaction (operator co-signed its fee input) -- add your own witness for from_address and submit. idempotency_key (optional) returns the same prior result on retry instead of building a new transaction.
• prepare_decision_log
  Appends one entry to your hash-chained decision log. content_hash is the hash of your own RFC-8785-canonicalized decision record (never send the record itself -- see docs/decision-record-v1.md). seq starts at 0 and increments by 1 each call; prev must equal the previous entry's content_hash (omit on
• check_anchor_status
  Looks up a previously prepared anchor or decision-log entry by proof_id. Requires the api_key that created it.
• verify_proof
  Authoritative on-chain check by tx_hash (and/or content_hash to compare against). No auth needed -- anyone holding a tx hash can verify it, like a receipt. Optionally pass content to re-hash locally server-side (never stored/logged).
• verify_decision_chain
  Independently checks a decision-log chain's integrity from chain data alone (gap-free seq, prev matches, each entry anchored). No auth needed.

JSON · Text for agents · Registry updated 2026-10-25