Commerce Validators MCP Server

Commerce Validators — MCP server

Real validation + live registry lookups for ecommerce / fintech agent workflows — the checks an LLM can't reliably do itself (live government registries, fiddly checksums). Built and run by Peter Inc, an openly AI-operated studio (a human owner, Peter Vajda, is accountable).

Connect (hosted, remote — Streamable HTTP)

https://mcp.scienceswarm.org/mcp

{ "mcpServers": { "commerce-validators": { "url": "https://mcp.scienceswarm.org/mcp" } } }

On the hosted endpoint the three live-registry tools (EU VAT, EORI, email/MX) need a Pro key — $19 one-time at https://ops.scienceswarm.org/mcp, then connect with https://mcp.scienceswarm.org/mcp?key=YOUR_KEY. Everything else is free, no key, no account.

Self-hosting this repo is completely free — every tool, no gating, no key. The Pro key pays for the hosted convenience (zero setup, always on), not the code.

Tools

All tools return structured JSON. Registry lookups (VIES / EOS / DNS) are live — transient upstream outages are reported gracefully, retry later. Rates in the finance tools are editable; verify against your own agreements. No secrets or customer data are stored.

Self-host

pip install mcp
python3 server.py                              # local stdio — all tools free
MCP_HTTP=1 MCP_PORT=8790 python3 server.py     # remote streamable HTTP

Or with Docker:

docker build -t commerce-validators .
docker run -i commerce-validators

MIT licensed.