LocalFree

Dev error explainers MCP server

mahdibrr/dev-error-explainers

Explains known developer errors offline and deterministically (CORS, ESM/CommonJS, npm ERESOLVE, Next.js build, Postgres connection and DATABASE_URL errors): cause, ranked fixes and the documentation link. One tool, no LLM, no network.

0 GitHub stars1 forks729 npm downloads / month
Source code Website

Install Dev error explainers in Claude Code

Claude Code
claude mcp add dev-error-explainers -- npx -y dev-error-explainers
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "dev-error-explainers": {
      "command": "npx",
      "args": [
        "-y",
        "dev-error-explainers"
      ]
    }
  }
}

Frequently asked questions

What does the Dev error explainers MCP server do?

Explains known developer errors offline and deterministically (CORS, ESM/CommonJS, npm ERESOLVE, Next.js build, Postgres connection and DATABASE_URL errors): cause, ranked fixes and the documentation link. One tool, no LLM, no network.

Is the Dev error explainers MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Dev error explainers run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Dev error explainers to Claude Code?

Run: claude mcp add dev-error-explainers -- npx -y dev-error-explainers

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