# mcpgrade-probe

What this client asked https://www.pathwren.workers.dev for, from that host's own request log.
Window: 2026-09-01 07:07:29Z to 2026-09-02 07:08:26Z UTC. Generated 2026-09-03.

## User-agent strings, exactly as they arrived

- `mcpgrade-probe/0.1` — 14 request(s), 1 address(es), 2026-09-01 07:07:29Z to 2026-09-02 07:08:26Z

- Requests: 14
- Distinct addresses (salted hashes, never published): 1
- Distinct paths: 8
- Visits (30-minute gap rule): 2
- Status codes: 404×6, 200×6, 202×2
- Accept headers: application/json, text/event-stream, */*
- Our classifier called it: agent×14 (ours, from the user-agent)

## What it asked for, in order

1. `/.well-known/oauth-protected-resource` — 2026-09-01 07:07:29Z — 404
2. `/c/mcp-registry-official/mcp/doctor` — 2026-09-01 07:07:29Z — 200
3. `/mcp` — 2026-09-01 07:07:29Z — 200
4. `/.well-known/oauth-authorization-server` — 2026-09-01 07:07:29Z — 404
5. `/c/mcp-registry-official/mcp/triage` — 2026-09-01 07:07:29Z — 200
6. `/c/mcp-registry-official/mcp` — 2026-09-02 07:08:25Z — 200
7. `/c/mcp-registry-official/mcp/netcheck` — 2026-09-02 07:08:25Z — 202
8. `/c/mcp-registry-official/mcp/robots` — 2026-09-02 07:08:26Z — 200

## What it asked for that did not exist

- `/.well-known/oauth-protected-resource` — 404×3 — first asked 2026-09-01 07:07:29Z; still absent, on purpose — No (https://www.pathwren.workers.dev/security.html)
- `/.well-known/oauth-authorization-server` — 404×3 — first asked 2026-09-01 07:07:29Z; still absent, on purpose — No (https://www.pathwren.workers.dev/security.html)

## 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.

## 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

not observed — no URL in its user-agent

JSON: https://www.pathwren.workers.dev/bot/mcpgrade-probe.json · all clients: https://www.pathwren.workers.dev/data/observed-clients.json