A2A Passport — one GTIN, one call, everything GSC knows, signed MCP Server

by greencore-solutions Your server? Claim it

answering

A2A Passport — one GTIN, one call, everything GSC knows, signed is answering right now. Last checked 9 min ago. It exposes 3 tools. Last commit 6 Oct 2026.

The hubs are the records; A2A-Passport.ai issues the passport.

Uptime history 34 days of history · worst day 91%

34 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

236 ms

Response time

average over 24h

Stars

last commit 6 Oct 2026

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 13 October 2026. No other catalogue keeps this.

13 Oct a tool description was rewritten get_passport

Nothing serious here today

Today is the operative word: we check A2A Passport — one GTIN, one call, everything GSC knows, signed 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 9 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add a2a-passport --transport http https://mcp.a2a-passport.ai/mcp

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

https://mcp.a2a-passport.ai/mcp

~/.codex/config.toml

[mcp_servers.a2a-passport]
url = "https://mcp.a2a-passport.ai/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "a2a-passport": {
      "url": "https://mcp.a2a-passport.ai/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "a2a-passport": {
      "type": "http",
      "url": "https://mcp.a2a-passport.ai/mcp"
    }
  }
}

Available tools 3

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

passport

get_passport

The signed passport of a product (a Global Trade Item Number, GTIN) or a retail banner (market/banner, e.g. FR/Carrefour): which hub holds its record, where it is on the record, its compliance records, who lists it, where the payment door is. Read live from the GSC hubs on every call; the first call issues version 1. subject = a GTIN (8 to 14 digits) or market/banner; kind = gtin or banner (optional).

passports

list_passports

The passports on the register: ids, kinds, markets, versions and issue times, newest first. No bodies. Filter by kind (gtin or banner), market, or issued since a time; paginated.

verify

verify_passport

Check a passport: is the signature valid, is the chain of versions intact, how old is the stamp, was any section not read. Verifies from the published key at /.well-known/jwks.json.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.a2a-passport.ai/mcp	streamable-http	answering	228 ms	9 min ago

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A2A Passport — one GTIN, one call, everything GSC knows, signed — questions

Answers built from our own checks of this server.

What can A2A Passport — one GTIN, one call, everything GSC knows, signed do?

It exposes 3 tools, read directly from the server on our last check. Among them: get_passport, list_passports, verify_passport. 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 A2A Passport — one GTIN, one call, everything GSC knows, signed 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 236 ms. The bar chart above shows every period we have measured.

How do I connect A2A Passport — one GTIN, one call, everything GSC knows, signed?

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 A2A Passport — one GTIN, one call, everything GSC knows, signed need an API key?

No. A2A Passport — one GTIN, one call, everything GSC knows, signed completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is A2A Passport — one GTIN, one call, everything GSC knows, signed?

It answers our handshake in 236 ms on average, which is faster than 59% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is A2A Passport — one GTIN, one call, everything GSC knows, signed open source?

The code is open source: it is published under the MIT licence and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at mcp.a2a-passport.ai, which runs on its operator's own terms.