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Turn your existing API into a hosted MCP server. Convert an OpenAPI document, REST API, or Postman collection into a production-ready MCP server. Choose which API operations AI clients can access, then connect it to your favorite MCP-compatible applications.

Introduction

Learn what 0mcp is, how it works, and when to use it.

Quick Start

Create, publish, and connect your first MCP server in minutes.

What is MCP?

Learn the fundamentals of the MCP, including clients, servers, tools.

How 0mcp works

Understand how requests flow from an AI client to your API through 0mcp.

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From API to MCP

Turn your existing API into a hosted MCP server in four simple steps.
1

Import

Import an OpenAPI 3.x or Swagger 2.0 specification, configure REST endpoints, or import a Postman collection.
2

Choose

Select which API operations should be exposed as MCP tools.
3

Publish

Publish a version of your MCP server to a hosted endpoint.
4

Connect

Connect your MCP server to Claude Code, Cursor, Codex, VS Code, and other compatible clients.

Authentication

Learn how authentication is securely passed through to your API.

Client setup

Connect your MCP server to supported AI clients.

MCP 2026-07-28 compatibility

Understand modern Streamable HTTP behavior and client compatibility.

Versioning

Publish updates, manage versions, and roll back when needed.

Logs and privacy

Learn what usage data 0mcp stores and what it never stores.

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