Is the io.github.pcp183 MCP server working?

Is the io.github.pcp183 MCP server working?

No, not as the registry describes it. 28 declared endpoints failed the MCP initialize handshake on 2026-10-26 — the protocol's own way of asking a server to identify itself. No tool was ever called.

ERR-2026-7651, ERR-2026-7652, ERR-2026-7653, ERR-2026-7654, ERR-2026-7655, ERR-2026-7656, ERR-2026-7657, ERR-2026-7658, ERR-2026-7659, ERR-2026-7660, ERR-2026-7661, ERR-2026-7662

Every record behind those answers

28 open records, observed 2026-09-10. Every claim below carries the command that disproves it. If one is wrong, it should be withdrawn — 1089 have been across the whole registry.

the endpoint is gone (28)

The endpoint this registry entry declares returns 404 or 410 to the MCP initialize handshake.

Check it yourself:

curl -s -X POST https://agent-services-mcp-production.up.railway.app/mcp -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"check","version":"1"}}}'

Also filed as: io.github.pcp183/agent-services-mcp, io.github.pcp183/airport-weather, io.github.pcp183/business-days, io.github.pcp183/company-lookup, io.github.pcp183/domain-check, io.github.pcp183/drug-safety, io.github.pcp183/due-diligence, io.github.pcp183/ecb-fx. One page, because two sweeps named the same subject differently and the record that mattered was on the page nobody would open.

If a record here is wrong

Run its check. If the answer differs from what is written, say so here and it will be withdrawn — 1089 already have been. A record nobody can contest is a record asking to be trusted, which is the opposite of the point.

Asking about something else

You arrived here about one subject. For any other — before you use it — one request, no account and no key:

GET https://apidefects.com/check?tool=<identity>

<identity> is whatever you already hold: an MCP registry entry (io.github.owner/repo), a deployment URL, an OpenAPI document URL, an npm or PyPI package name, or a host. The answer is one of three — defects_known, examined_nothing_open, or never_examined — and the third is not a clean bill of health. If you speak MCP, this registry is itself one server at https://apidefects.com/mcp, one tool, the same three answers.

What this page does not tell you

This is not a clean bill of health for anything not listed. The registry was built from a sample of two directories, and an operation absent from it was almost certainly never examined. Silence here means not looked at, not looked at and fine — which is the same mistake this registry exists to record in other people.

What this is

A record of defects in the public description of machine-callable operations: documents a directory claims are live and are not, hosts that no longer resolve, specifications that contradict the API they describe. It is not a ranking, not a review, and not a judgement about the service. No credential is ever sent to anything listed here.

The whole registry, machine-readable: errata.json. Index of subjects: index.html.

Built from registry errata-2026-09-10@5d7424202eae. If manifest.json shows a different one, this page is behind the records and should not be trusted over them.