MCP server

CBROS Notary & Decision Log

eu.coudrebros/notary

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

At a glance

Type

MCP server

Publisher

coudrebros.eu (verified by the MCP Registry)

Status

Working at last check

Tools

6

Token cost

About 967 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.notary]
url = "https://nftapi.coudrebros.eu/mcp/notary/"

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"notary":{"type":"http","url":"https://nftapi.coudrebros.eu/mcp/notary/"}}}

Antigravity

agy mcp add notary https://nftapi.coudrebros.eu/mcp/notary/

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"notary","server_url":"https://nftapi.coudrebros.eu/mcp/notary/","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"notary","server_url":"https://nftapi.coudrebros.eu/mcp/notary/"}

Tools

• check_anchor_status ~107 tokens
  Looks up a previously prepared anchor or decision-log entry by proof_id. Requires the api_key that created it.
• get_notary_info ~61 tokens
  No auth needed. Price, min confirmations, spec version, and supported hash algorithms.
• prepare_anchor ~221 tokens
  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 ~296 tokens
  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
• verify_decision_chain ~102 tokens
  Independently checks a decision-log chain's integrity from chain data alone (gap-free seq, prev matches, each entry anchored). No auth needed.
• verify_proof ~180 tokens
  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).

Browse

• Crypto and blockchains

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