Errata

ai.formachines/errata · v0.1.3

Sandbox-verified fixes where AI models write outdated code for PyPI and npm libraries

Website Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add errata -e ERRATA_BASE_URL=<ERRATA_BASE_URL> -e ERRATA_TIMEOUT_MS=<ERRATA_TIMEOUT_MS> -e ERRATA_NO_TELEMETRY=<ERRATA_NO_TELEMETRY> -- npx -y @formachines/[email protected]

claude_desktop_config.json

{
  "mcpServers": {
    "errata": {
      "command": "npx",
      "args": [
        "-y",
        "@formachines/[email protected]"
      ],
      "env": {
        "ERRATA_BASE_URL": "<ERRATA_BASE_URL>",
        "ERRATA_TIMEOUT_MS": "<ERRATA_TIMEOUT_MS>",
        "ERRATA_NO_TELEMETRY": "<ERRATA_NO_TELEMETRY>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "errata": {
      "command": "npx",
      "args": [
        "-y",
        "@formachines/[email protected]"
      ],
      "env": {
        "ERRATA_BASE_URL": "<ERRATA_BASE_URL>",
        "ERRATA_TIMEOUT_MS": "<ERRATA_TIMEOUT_MS>",
        "ERRATA_NO_TELEMETRY": "<ERRATA_NO_TELEMETRY>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "errata": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@formachines/[email protected]"
      ],
      "env": {
        "ERRATA_BASE_URL": "<ERRATA_BASE_URL>",
        "ERRATA_TIMEOUT_MS": "<ERRATA_TIMEOUT_MS>",
        "ERRATA_NO_TELEMETRY": "<ERRATA_NO_TELEMETRY>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

Name	Description
`ERRATA_BASE_URL` Optional	Base URL of the Errata site (default https://formachines.ai)
`ERRATA_TIMEOUT_MS` Optional	Timeout of one request to the base, in milliseconds (default 8000)
`ERRATA_NO_TELEMETRY` Optional	Set to 1 to stop sending search misses (error type and scrubbed message) when search_error finds nothing

Details

Package	`@formachines/[email protected]` (NPM, stdio)
First published	10 Nov 2026
Last updated	10 Nov 2026
Registry name	`ai.formachines/errata`

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Live status

Local install

Installed and run on your own machine, so there is no public endpoint to check.

Pair it with live search

Agents that use Errata often also need current facts. NestDaddy MCP gives your AI today's internet: web search, real-time breaking news and full page reading in one connector.

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