TracePass MCP Server

A Model Context Protocol server for TracePass — the EU Digital Product Passport platform. It lets AI assistants (Claude, Cursor, IDE agents) manage products, Digital Product Passports, economic-operator parties, and GS1 EPCIS 2.0 supply-chain events.

It speaks the full MCP protocol — tools, resources, resource templates, and prompts.

Two ways to use it

The same server core ships two ways:

1. Hosted — point your MCP client at https://ai.tracepass.eu/mcp. Nothing to install; always current.
2. Local (npm) — run tracepass-mcp-server via npx. The MCP client launches it as a subprocess and speaks MCP over stdio.

Authentication

The server accepts either of TracePass's two v1 auth methods on the same Authorization: Bearer … header — it forwards whatever you send to the API, which decides. Pick the one that fits how you're connecting:

Which should an AI assistant use? If your MCP client supports OAuth (Claude.ai, ChatGPT, and others), prefer OAuth — the user authorizes the connection once on a TracePass consent screen, you never handle a secret, and access is least-privilege and revocable. If your client only takes a header/token, use an API key.

OAuth 2.0 (recommended for hosted clients)

No config beyond pointing your client at the hosted endpoint — discovery is automatic. On the first unauthenticated request the server returns a 401 whose WWW-Authenticate header carries a resource_metadata URL (RFC 9728) pointing at /.well-known/oauth-protected-resource, which names the TracePass authorization server. The client runs the standard authorization-code flow with PKCE (/api/oauth/authorize → /api/oauth/token), the user approves scopes, and the client stores + refreshes the token. If you distribute your own client, register an app under Developer → OAuth Apps to get a client_id; many hosted clients self-register via Dynamic Client Registration automatically.

Request only the scopes you need, e.g. passports:read passports:write offline_access. Users manage connected apps (and revoke) under Developer → OAuth Apps → Connected Apps.

API key

Mint a tp_… key under Developer → API Keys and send it as a Bearer token.

Hosted:

{
  "mcpServers": {
    "tracepass": {
      "url": "https://ai.tracepass.eu/mcp",
      "headers": { "Authorization": "Bearer tp_YOUR_KEY" }
    }
  }
}

Local (npx / stdio) — the local subprocess can't do an interactive OAuth consent step, so it's API-key only, via the TRACEPASS_API_KEY env:

{
  "mcpServers": {
    "tracepass": {
      "command": "npx",
      "args": ["-y", "tracepass-mcp-server"],
      "env": {
        "TRACEPASS_API_KEY": "tp_YOUR_KEY"
      }
    }
  }
}

Optional env var: TRACEPASS_BASE_URL (defaults to https://app.tracepass.eu) — point the tools at a different TracePass deployment.

Tools

The TracePass v1 API operations are grouped into 6 tools, each taking an action plus action-specific args:

The *_by_serial actions address a passport by the customer's own serial number instead of its TracePass id. A serial is unique only within a GTIN, so if the same serial exists under two GTINs in your account a serial-only call returns 409 ambiguous_serial — pass the optional gtin arg to disambiguate (or use the by-id action). The same gtin disambiguator applies to every *_by_serial action.

The tracepass_passports compliance action returns a three-tier compliance verdict (compliant / compliant_with_warnings / incomplete) with regulation-cited findings — missing required fields, missing economic-operator parties, format issues, and per-category conditional rules. Read-only; use it to gap-check a passport, fix the cited gaps, then re-check.

A note on writes

Some actions cost money or are irreversible — the server's tool descriptions tell the model so:

• tracepass_passports create consumes a billable DPP slot on the account's plan. Over-quota creation incurs a per-passport overage charge; the tool surfaces a 402-style message and only proceeds with args.confirmOverage: true after the user agrees.
• tracepass_passports archive is irreversible — the public QR permanently 404s. Use suspend (reversible) when a change might be undone.
• tracepass_epcis capture / query require the paid EPCIS add-on; export is included on Starter plans and up.

Resources

Read-only entity data you can attach as conversation context:

• tracepass://products — the product catalogue
• tracepass://product/{id} — one product
• tracepass://passport/{id} — one passport, full field detail
• tracepass://passport/{id}/epcis — a passport's EPCIS 2.0 events
• tracepass://passport/{id}/compliance — a passport's compliance verdict
• tracepass://templates — all 12 DPP category regulatory schemas
• tracepass://template/{category} — one category's full field schema

Prompts

Reusable DPP workflows the client surfaces as slash-commands:

• audit_passport — review a passport for completeness and compliance readiness
• onboard_product — create a product and its first passport
• explain_dpp_requirements — explain what a category's compliant DPP must contain, and the regulation behind each field
• compliance_gap_check — produce a prioritised, regulation-cited list of what's blocking a passport's compliant publication
• review_epcis_events — summarise a passport's supply-chain trail

Development

npm install
npm run build        # tsc -> dist/
npm run typecheck
npm test             # vitest
npm run lint
npm start            # run the hosted HTTP service locally (:8080)
npm run start:stdio  # run the stdio server locally

The hosted service is a plain Node HTTP server (dist/http.js), stateless — each request carries its own API key and builds a fresh MCP session. It is containerised via the Dockerfile and deployed to Hetzner; see tracepass-environment/docker-mcp.yml.

Listed on Glama

This server is published in the official MCP Registry as eu.tracepass/tracepass and listed on Glama:

License

MIT