MCP config generator & validator

Build the config file that tells Claude Desktop, Claude Code, VS Code or Spring AI which MCP servers to connect to — or paste one that isn’t working and find out why. This writes client config; it doesn’t install or run a server. Nothing you type leaves your browser.

Servers to connect to

Client config file

Format 
Add a server to see your config.
What this checks
  • Whether the file is valid JSON, and exactly where it stops being valid
  • Whether each server has the fields its transport needs
  • Windows path escaping, and the npx problem that makes servers fail silently
  • Placeholder tokens left over from a copied example

It can't tell you whether a package is installed, whether a token is valid, or whether a path exists on your disk. Those only show up when the client actually starts the server.