Openapi MCP

An MCP server that lets LLMs inspect and interact with OpenAPI specifications.

- Load OpenAPI specs from URL or file (OpenAPI 2.0 & 3.x)
- List and search endpoints
- Get request/response schemas (fully dereferenced)
- Validate payloads against schemas
- Generate sample request payloads
- Generate TypeScript types from schemas
- Extract authentication schemes

git clone https://github.com/blackkspydo/openapi-mcp.git cd openapi-mcp bun install bun run build

claude mcp add openapi-mcp -- npx --yes @blackkspydo/openapi-mcp

Add to~/Library/Application Support/Claude/claude_desktop_config.json:

{ "mcpServers": { "openapi-mcp": { "command": "npx", "args": ["--yes", "@blackkspydo/openapi-mcp"] } } }

{ "mcpServers": { "openapi-mcp": { "command": "openapi-mcp" } } }

openapi-mcp # or npx --yes @blackkspydo/openapi-mcp

You: Load the Petstore API spec from https://petstore.swagger.io/v2/swagger.json You: List all POST endpoints You: Generate TypeScript types for the Pet schema You: Generate a cURL command for POST /pet You: Generate a sample request for POST /pet

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