dev.stackfacts/stackfacts
Stackfacts
Neutral, sourced, dated facts for choosing software: price, free tier, idle rules, security record.
alive probed 2026-10-14 · HTTP 200
4tools
623tokens in Claude Opus 5.5
663tokens in Claude Code
0.3 %of a 200k context window
367o200k_base estimate
656 msto initialize
51 msto list tools
- Endpoint
- https://stackfacts.dev/mcp (streamable-http)
- Host
- stackfacts.dev
- Protocol
- 2025-11-25
- Reports itself as
- stackfacts 0.3.0
- Capabilities
- tools
- Instructions
- 120 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Website
- https://stackfacts.dev
- Registry
- active, updated 2026-10-03 · registry entry
- Reachable
- 7 of the last 7 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| compare | 160 | 44 % |
| option | 77 | 21 % |
| request_category | 69 | 19 % |
| list_categories | 61 | 17 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-14 18:27 | alive | 1.7 s | 4 | 623 | 367 |
| 2026-10-05 14:00 | alive | 656 ms | 4 | 623 | 367 |
| 2026-10-05 00:24 | alive | 215 ms | 4 | 367 | |
| 2026-10-04 10:00 | alive | 842 ms | 4 | 367 | |
| 2026-10-04 07:53 | alive | 1.1 s | 4 | 367 | |
| 2026-10-03 20:33 | alive | 1.7 s | 4 | 367 | |
| 2026-10-03 17:50 | alive | 451 ms | 4 | 367 |
Badge and feed
[](https://mcpcost.ulehla.dev/s/dev.stackfacts/stackfacts)
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.