io.github.lonniev/excalibur-mcp
excalibur-mcp
FastMCP server for posting formatted content to X (Twitter) — Tollbooth-monetized, DPYC-native
alive probed 2026-10-15 · HTTP 200
87tools
39ktokens in Claude Opus 5.5
41ktokens in Claude Code
19.7 %of a 200k context window
24ko200k_base estimate
3.8 sto initialize
1.4 sto list tools
- Endpoint
- https://excalibur-mcp.fastmcp.app/mcp (streamable-http)
- Host
- excalibur-mcp.fastmcp.app
- Protocol
- 2025-11-25
- Reports itself as
- excalibur-mcp 0.42.1
- Capabilities
- experimental, extensions, logging, prompts, resources, tools
- Instructions
- 3 023 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/lonniev/excalibur-mcp
- Registry
- active, updated 2026-08-29 · registry entry
- Reachable
- 9 of the last 9 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| excalibur_list_posts | 862 | 4 % |
| excalibur_create_post | 747 | 3 % |
| excalibur_list_conversations | 714 | 3 % |
| excalibur_find_conversations | 694 | 3 % |
| excalibur_resolve_dynamic_block | 621 | 3 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-15 10:48 | alive | 3.4 s | 87 | 39k | 24k |
| 2026-10-13 11:17 | alive | 1.0 s | 87 | 31k | 18k |
| 2026-10-08 11:15 | alive | 1.4 s | 86 | 31k | 18k |
| 2026-10-05 14:56 | alive | 3.8 s | 86 | 31k | 18k |
| 2026-10-05 00:37 | alive | 535 ms | 86 | 18k | |
| 2026-10-04 10:05 | alive | 1.5 s | 79 | 16k | |
| 2026-10-04 07:59 | alive | 2.6 s | 79 | 16k | |
| 2026-10-03 20:38 | alive | 1.0 s | 79 | 16k | |
| 2026-10-03 17:54 | alive | 1.3 s | 79 | 16k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.lonniev/excalibur-mcp)
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.