Before you begin
You’ll need:
You can import your specification from a file, public URL, or pasted text. Uploaded files must be 10 MB or smaller.
1. Create a server
From the dashboard, select Create Server and give your MCP server a descriptive name.
2. Import your OpenAPI specification
Upload a file, provide a public URL, or paste your specification.
0mcp validates the document and automatically discovers the available API operations.
Select which API operations should be exposed as MCP tools.
You can also customize tool names and descriptions before creating your MCP server.
4. Publish a version
Open the Versions page and publish your server.
Only the published version is visible to connected MCP clients. Any unpublished changes remain in draft until you publish them. Learn more in Versioning.
5. Test in the Playground
Open the Playground to verify that your server works as expected.
If your API requires authentication, provide the appropriate credentials and test a read-only tool before connecting an AI client.
6. Connect your client
Open Setup, choose your MCP client, such as Claude Code, Cursor, Codex, or VS Code, and copy the generated configuration. See Client setup for guidance.
Add any required environment variables, then restart or reconnect your client.
Security tip: Never store production API credentials in shared configuration files. Use the environment variables or secure credential inputs recommended on the Setup page.
