io.github.cyanheads/gutenberg-mcp-server
gutenberg-mcp-server
MCP server for Project Gutenberg: 75,000+ public-domain ebooks with full plain-text retrieval.
alive probed 2026-10-09 · HTTP 200
4tools
2.5ktokens in Claude Opus 5.5
2.6ktokens in Claude Code
1.3 %of a 200k context window
1.5ko200k_base estimate
313 msto initialize
77 msto list tools
- Endpoint
- https://gutenberg.caseyjhand.com/mcp (streamable-http)
- Host
- gutenberg.caseyjhand.com
- Protocol
- 2025-11-25
- Reports itself as
- gutenberg-mcp-server 0.1.10
- Capabilities
- logging, prompts, resources, tools
- Instructions
- 349 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/cyanheads/gutenberg-mcp-server
- Registry
- active, updated 2026-10-08 · registry entry
- Reachable
- 7 of the last 7 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| gutenberg_search_books | 585 | 40 % |
| gutenberg_get_text | 404 | 27 % |
| gutenberg_browse_popular | 273 | 19 % |
| gutenberg_get_book | 209 | 14 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-09 11:18 | alive | 564 ms | 4 | 2.5k | 1.5k |
| 2026-10-05 14:39 | alive | 313 ms | 4 | 2.5k | 1.5k |
| 2026-10-05 00:33 | alive | 199 ms | 4 | 1.5k | |
| 2026-10-04 10:04 | alive | 329 ms | 4 | 1.5k | |
| 2026-10-04 07:57 | alive | 217 ms | 4 | 1.5k | |
| 2026-10-03 20:37 | alive | 826 ms | 4 | 1.5k | |
| 2026-10-03 17:53 | alive | 662 ms | 4 | 1.5k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.cyanheads/gutenberg-mcp-server)
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.