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MCP-Bridge
party popper

OpenAPI to MCP Converter

Paste any OpenAPI v3 JSON spec and get a ready-to-use MCP server configuration. All processing happens in your browser — nothing is sent to any server.

1015+ APIs supported461+ MCP servers indexedzapZero backendNo signup
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Your MCP config will appear here...
Before and after comparison

How to use this config

  1. Copy the generated JSON from the right panel
  2. Open your MCP client config file (e.g., ~/.cursor/mcp.json or Claude Desktop's claude_desktop_config.json)
  3. Paste the config under the mcpServers key
  4. Set the required environment variables (API keys, tokens, etc.)
  5. Restart your MCP client and start using the tools

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Get a hosted URL that always serves the latest MCP config for your API. $5/mo — no server management needed.

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Automatic Schema Translation

The converter parses paths, operations, query parameters, request bodies, and headers from OpenAPI 3.0 and 3.1 specifications into standard Model Context Protocol (MCP) JSON-RPC tool schemas.

  • Deterministic operationId naming
  • Strict JSON Schema input validation
  • Environment variable mapping for API keys

Multi-Client Compatibility

Generated configuration snippets are 100% compliant with Claude Desktop, Cursor IDE, VS Code (Cline / Roo Code), Windsurf, and Zed Editor context servers.

  • Standard stdio child process transport
  • Support for local npm package execution
  • Clean isolation of credentials in local environments

Support the Project

This tool is free and open source. If it saves you time, consider supporting development.

Sponsor on GitHub