io.github.haszerobyte/ratatoskr
Ratatoskr
Is the Ratatoskr MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-09.
Keyless web search and page fetching for agents, as Markdown.
alive probed 2026-11-14 · unchanged since 2026-11-09
2tools
612tokens in Claude Opus 5.5
0.3 %of Claude's 200k window
0.2×the median server
763 msto initialize
2 msto list tools
- Run it
- docker run -i --rm ghcr.io/haszerobyte/ratatoskr:0.3.0 (stdio, probed in a container with the network off)
- Host
- ghcr.io
- Reports itself as
- ratatoskr 0.3.0
- Capabilities
- tools
- Instructions
- 171 characters
- Of a 1M window
- <0.1 % of a 1M context window
- Count
- 612 tokens in Claude Opus 5.5, exact, measured 2026-11-09. With the Claude Code prefix mcp__…__ on each tool name: 634. The o200k_base estimate is 395. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/haszerobyte/Ratatoskr
- Website
- https://github.com/haszerobyte/Ratatoskr
- Registry
- active, updated 2026-11-08 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.55×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| web_search | 482 | 311 | 79 % |
| web_fetch | 130 | 84 | 21 % |
Compare this server with others.
More servers
Other registry entries on ghcr.io, the ones next to this name; all of them.
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- Mellow Tapir Radio Spectrum Guide io.github.guycole/mellow-tapir · not probed
- Unified AI System MCP Gateway io.github.happy520ai/unified-ai-system · alive
- phpgraph io.github.hbenabdallah/phpgraph · alive
- retriEVAL io.github.hcarrillo001/retrieval-mcp · alive
- skgate io.github.helv-io/skgate · not probed
- io.github.herp75/mcp-cookidoo · alive
Servers that mention fetching or markdown.
- ai.artidrop/artidrop · alive
- Web Content & URL Tools ai.avaloncompany/web-content-url-tools · needs auth
- AutEng Docs — Agent Document Workspace & Publishing ai.auteng/docs · alive
- AutEng MCP - Markdown Publishing & Document Share Links ai.auteng/mcp · alive
- ai.exa/exa · alive
- file2markdown ai.file2markdown/file2markdown · alive
- Ishan Goyal public context ai.igoyal/public-context · alive
- Keenable Web Search ai.keenable/web-search · alive
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.