dev.workers.mattskowronis.source-claim-proof/verify-source-claim
Source Claim Proof
Verify whether a supplied public source currently supports one atomic factual claim.
alive probed 2026-10-05 · HTTP 200
1tools
237tokens in Claude Opus 5.5
249tokens in Claude Code
0.1 %of a 200k context window
126o200k_base estimate
313 msto initialize
202 msto list tools
- Endpoint
- https://source-claim-proof.mattskowronis.workers.dev/mcp (streamable-http)
- Host
- source-claim-proof.mattskowronis.workers.dev
- Protocol
- 2025-11-25
- Reports itself as
- source-claim-proof 1.0.0
- Capabilities
- tools
- Instructions
- 218 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Website
- https://source-claim-proof.mattskowronis.workers.dev
- Registry
- active, updated 2026-08-19 · registry entry
- Reachable
- 6 of the last 6 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| verify_source_claim | 126 | 100 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-05 14:01 | alive | 313 ms | 1 | 237 | 126 |
| 2026-10-05 00:25 | alive | 166 ms | 1 | 126 | |
| 2026-10-04 10:00 | alive | 184 ms | 1 | 126 | |
| 2026-10-04 07:54 | alive | 164 ms | 1 | 126 | |
| 2026-10-03 20:33 | alive | 397 ms | 1 | 126 | |
| 2026-10-03 17:50 | alive | 234 ms | 1 | 126 |
Badge and feed
[](https://mcpcost.ulehla.dev/s/dev.workers.mattskowronis.source-claim-proof/verify-source-claim)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.