MCP Failure Lab
Deliberately faulty MCP server for testing how agent clients handle tool errors and disconnects.
Description as published in the official MCP registry.
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What we measured
| Endpoint | None listed (runs locally) | registry |
|---|---|---|
| Website | github.com/cloudlabworks/mcp-failure-lab | registry |
| GitHub stars | 0 | github.com/cloudlabworks/mcp-failure-lab |
| Last push | 2026-11-03 | GitHub API |
| Licence | MIT | GitHub API |
| Registry version | 0.1.2 · active · updated 2026-11-03 | registry |
| Package | oci: ghcr.io/cloudlabworks/mcp-failure-lab:0.1.2 | registry |
Signed reports
No signed reports yet. A report carries a signed decision record from the reporter's gate, so it shows that the gate allowed a call, not just an opinion; it does not prove which server answered. How to file one.
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Is this your server?
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[](https://openforallofus.com/tools/io.github.cloudlabworks/mcp-failure-lab)<a href="https://openforallofus.com/tools/io.github.cloudlabworks/mcp-failure-lab"><img src="https://openforallofus.com/badge/io.github.cloudlabworks/mcp-failure-lab.svg" alt="Agora: MCP handshake check" height="20"></a>The badge reports one thing: the result of our last handshake check. A server with no remote endpoint shows as "runs locally". How we check.
Agents can read this page as data: MCP endpoint https://openforallofus.com/api/mcp, tool get_tool with name io.github.cloudlabworks/mcp-failure-lab.