dev.provinglab/browser-citation-capture
Proving Lab
Cite or capture a web page; installs the capture extension in Firefox and Chrome.
alive probed 2026-10-05 · HTTP 200
10tools
2.5ktokens in Claude Opus 5.5
2.7ktokens in Claude Code
1.3 %of a 200k context window
1.6ko200k_base estimate
219 msto initialize
72 msto list tools
- Endpoint
- https://provinglab.dev/mcp (streamable-http)
- Host
- provinglab.dev
- Protocol
- 2025-06-18
- Reports itself as
- provinglab 1.25.0
- Capabilities
- tools
- Instructions
- 658 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Website
- https://provinglab.dev/
- Registry
- active, updated 2026-08-30 · registry entry
- Reachable
- 6 of the last 6 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| how_to_capture | 273 | 17 % |
| install_extension | 257 | 16 % |
| extract_citation | 216 | 14 % |
| extract_citations | 190 | 12 % |
| open_work | 147 | 9 % |
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 13:59 | alive | 219 ms | 10 | 2.5k | 1.6k |
| 2026-10-05 00:24 | alive | 172 ms | 10 | 1.6k | |
| 2026-10-04 10:00 | alive | 446 ms | 10 | 1.6k | |
| 2026-10-04 07:53 | alive | 665 ms | 10 | 1.6k | |
| 2026-10-03 20:33 | alive | 579 ms | 10 | 1.6k | |
| 2026-10-03 17:50 | alive | 224 ms | 10 | 1.6k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/dev.provinglab/browser-citation-capture)
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.