Offline, deterministic cause and fix for Node, npm, Next.js, CORS and Postgres URL errors.
To add Dev error explainers to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation.
Install
npx -y dev-error-explainers@0.2.1Install with your client
claude mcp add dev-error-explainers -- npx -y dev-error-explainers@0.2.1
Run this in a terminal to add the server to Claude Code.
What this does
Dev error explainers exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Frequently asked questions
How do I install Dev error explainers?
Run the Claude Code command in the install section to add Dev error explainers to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with Dev error explainers?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to Dev error explainers as well.
Does Dev error explainers need an API key?
This listing does not ask for an API key or any environment variables.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
Is this your MCP server?
Claim this listing to see its traffic, fix details yourself, and skip the review queue on future updates.
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