Agent Identity Registry MCP Server

by jdhart81 Your server? Claim it

answering

Agent Identity Registry is answering right now. Last checked 13 min ago. It exposes 6 tools. Last commit 1 Nov 2026.

Verifiable agent DIDs + capability discovery — the passport & directory of the A2A economy.

Uptime history 91 days of history · worst day 99%

91 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

354 ms

Response time

average over 24h

Stars

last commit 1 Nov 2026

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 30 October 2026. No other catalogue keeps this.

30 Oct a tool description was rewritten describe_agent

Nothing serious here today

Today is the operative word: we check Agent Identity Registry every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 13 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add agent-identity-registry --transport http https://mcp.viridisconservation.com/identity/mcp

Settings → Connectors → Add custom connector, then paste this address

https://mcp.viridisconservation.com/identity/mcp

~/.codex/config.toml

[mcp_servers.agent-identity-registry]
url = "https://mcp.viridisconservation.com/identity/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "agent-identity-registry": {
      "url": "https://mcp.viridisconservation.com/identity/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "agent-identity-registry": {
      "type": "http",
      "url": "https://mcp.viridisconservation.com/identity/mcp"
    }
  }
}

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

describe

describe_agent

Describe this agent: name, version, purpose, every action it supports and the inputs each one takes. Read-only and free; call it first to learn how to use this server.

discover

discover_agents

Find ACTIVE agents matching ALL requested capabilities (AND semantics), deterministically ordered by match count then reputation.

register_agent

Register (or idempotently update) an agent identity. Returns a deterministic content-addressed DID. capabilities is a non-empty list of lowercase capability tags other agents can discover you by.

registrations

list_registrations

List registrations, optionally filtered by status (ACTIVE|REVOKED).

resolve

resolve_agent

Resolve an identity by agent_id or DID to its full public registration.

revoke

revoke_agent

Revoke an identity: it disappears from discovery (terminal) but its record is retained for auditability.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.viridisconservation.com/identity/mcp	streamable-http	answering	371 ms	13 min ago

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Agent Identity Registry — questions

Answers built from our own checks of this server.

What can Agent Identity Registry do?

It exposes 6 tools, read directly from the server on our last check. Among them: describe_agent, discover_agents, list_registrations, register_agent, resolve_agent, revoke_agent. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Agent Identity Registry working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 354 ms. The bar chart above shows every period we have measured.

How do I connect Agent Identity Registry?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Agent Identity Registry need an API key?

No. Agent Identity Registry completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Agent Identity Registry?

It answers our handshake in 354 ms on average, which is faster than 39% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Agent Identity Registry open source?

The code is open source: it is published under the Apache-2.0 licence, written in Python, 0 stars on GitHub and 4 open issues. The licence covers the code in the repository, not the hosted service at mcp.viridisconservation.com, which runs on its operator's own terms.