io.github.AgentTwin/agenttwin
AgentTwin
Is the AgentTwin MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-07.
Test AI agent workflows against service twins with injected faults. Runs locally; no source upload.
alive probed 2026-11-14 · unchanged since 2026-11-07
- Run it
- npx -y agenttwin@0.3.27 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- agenttwin 0.3.27
- Capabilities
- tools
- Instructions
- 262 characters
- Of a 1M window
- 0.5 % of a 1M context window
- Count
- 5.1k tokens in Claude Opus 5.5, exact, measured 2026-11-07. With the Claude Code prefix mcp__…__ on each tool name: 5.5k. The o200k_base estimate is 2.7k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/AgentTwin/agenttwin-agent-tools
- Website
- https://agenttwin.si/developers/
- Registry
- active, updated 2026-11-07 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.91×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| test_workflow | 295 | 154 | 6 % |
| submit_preparation | 237 | 124 | 5 % |
| prepare_workflow | 232 | 121 | 5 % |
| verify_run | 228 | 119 | 4 % |
| request_preparation_agent | 224 | 117 | 4 % |
Compare this server with others.
More servers
Other registry entries on npmjs.com, the ones next to this name; all of them.
- io.github.Agent360dk/computer-mcp · alive
- AgentAnycast io.github.AgentAnycast/agentanycast · no executable
- ModelShortlist io.github.AgenticArtists/modelshortlist · alive
- io.github.Agentled/mcp-server · alive
- ToolTrust Scanner io.github.AgentSafe-AI/tooltrust-scanner · needs network
- Doc Bridge io.github.AgentsKit-io/doc-bridge · crashed on start
- AgentTax io.github.AgentTax/agenttax-mcp · alive
- Agenzax io.github.Agenzax/agenzax-mcp · needs env
Servers that mention agenttwin or workflows or injected.
- AgentTwin Documentation io.github.Sashank-Singh/agenttwin-docs · alive
- AgentTwin Documentation io.github.AgentTwin/agenttwin-docs · alive
- ac.tandem/docs-mcp · alive
- China Marketing AI Intelligence MCP ai.chinamarketing/intelligence · needs auth
- Dreamlit ai.dreamlit/mcp · alive
- Gemus ai.gemus/gemus · needs auth
- Hexa ai.hexahq/hexa · needs auth
- ai.orgsdk/mcp · no DNS
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.