io.github.baronsigma/fallback-agent-tools
Fallback
Tiny paid recovery and decision utilities for autonomous agents.
alive probed 2026-10-07 · HTTP 200
4tools
3.5ktokens in Claude Opus 5.5
3.5ktokens in Claude Code
1.7 %of a 200k context window
1.9ko200k_base estimate
1.7 sto initialize
175 msto list tools
- Endpoint
- https://fallback.factrail.online/mcp (streamable-http)
- Host
- fallback.factrail.online
- Protocol
- 2025-11-25
- Reports itself as
- fallback 0.1.0-beta.1
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-07. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/baronsigma/fallback-agent-tools
- Website
- https://fallback.factrail.online
- Registry
- active, updated 2026-10-06 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| stop_search | 686 | 36 % |
| request_repair | 607 | 32 % |
| source_route | 321 | 17 % |
| error_route | 295 | 15 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.baronsigma/fallback-agent-tools)
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.