# referencesource-mcp-health

What this client asked https://www.pathwren.workers.dev for, from that host's own request log.
Window: 2026-09-08 06:00:37Z to 2026-09-08 06:49:20Z UTC. Generated 2026-09-08.

## User-agent strings, exactly as they arrived

- `referencesource-mcp-health/0.1 (+https://referencesource.org/mcp-health/; daily MCP liveness probe; opt out: contact@referencesource.org)` — 42 request(s), 1 address(es), 2026-09-08 06:00:37Z to 2026-09-08 06:49:20Z

- Requests: 42
- Distinct addresses (salted hashes, never published): 1
- Distinct paths: 7
- Visits (30-minute gap rule): 2
- Status codes: 200×28, 202×14
- Accept headers: application/json, text/event-stream
- Our classifier called it: agent×42 (ours, from the user-agent)

## What it asked for, in order

1. `/c/mcp-registry-official/mcp/doctor` — 2026-09-08 06:00:37Z — 200
2. `/c/mcp-registry-official/mcp` — 2026-09-08 06:07:11Z — 200
3. `/c/mcp-registry-official/mcp/netcheck` — 2026-09-08 06:07:26Z — 200
4. `/c/mcp-registry-official/mcp/triage` — 2026-09-08 06:07:30Z — 200
5. `/c/mcp-registry-official/mcp/markdown` — 2026-09-08 06:07:34Z — 200
6. `/c/mcp-registry-official/mcp/lint` — 2026-09-08 06:07:37Z — 200
7. `/c/mcp-registry-official/mcp/robots` — 2026-09-08 06:07:39Z — 200

## What it asked for that did not exist

Nothing.

## Verification

Not observed. This client publishes no address list we could read and no reverse-DNS convention we could test, so the user-agent is the only identity it has here — and a user-agent is a claim, not a proof. Anyone can send this string.

## Ask this page a question, with one GET

A question about this page, answered by a call you can make right now — no key, no account, no JSON-RPC, nothing to assemble. The query string is already filled in with this page's own subject.

- **What is referencesource-mcp-health/0.1 (+https://refe…?**  
  `curl -s 'https://www.pathwren.workers.dev/tools/classify-ua?ua=referencesource-mcp-health%2F0.1%20%28%2Bhttps%3A%2F%2Freferencesource.org%2Fmcp-health%2F%3B%20daily%20MCP%20liveness%20probe%3B%20opt%20out%3A%20contact%40referencesource.org%29&s=client-dossiers'`  
  This exact user-agent run through the catalogue: which crawler it is, who operates it, what the crawl is for, what blocking it costs — or an honest "not recognised" if it is nobody we know.

Every parameter above is a value the endpoint reads, not an address it visits: nothing is fetched on your behalf. Called without any parameter, each endpoint returns its own specification instead of an error.


## What it publishes about you

Not observed. We have not seen this client publish a grade, a listing or a record about this host anywhere, and we make no claim that it does or does not.

## Documentation it names

https://referencesource.org/mcp-health/

JSON: https://www.pathwren.workers.dev/bot/referencesource-mcp-health.json · all clients: https://www.pathwren.workers.dev/data/observed-clients.json