Openapi MCP gateway: MCP server, setup and security

What Openapi MCP gateway does

According to its repository: “Mount multiple OpenAPI specs or a FastAPI app as MCP servers in one process, exposing GET endpoints as resources and large specs through meta-tools.”

An MCP server gives an AI agent extra tools it calls during the conversation: the agent reads their description, decides to use them and gets the result back. Openapi MCP gateway is listed under Aggregators and gateways, a category of 141 servers in the directory, where it ranks #114 by stars.

Topics declared by the repository: gateway, openapi, fastapi, oauth2, openapi-to-mcp, swagger.

Installing and connecting Openapi MCP gateway

No package or remote server is declared in the official MCP registry: you install it from source, following the repository README.

Like any MCP server, you declare it in your client's configuration (Claude Desktop, Claude Code, Cursor, VS Code, Codex…): a name, the command that starts it or its URL, and any environment variables. The client then starts it and lists its tools. Project language: Python. Listed systems: macOS, Windows, Linux.

Security: what to check

An MCP server runs code with the rights you give it, and the model reads its tool descriptions: a malicious or compromised server can hijack the agent. Read the code, or pick a maintained and widely used server, before connecting it.

None of the risk signals we track (system access, secrets, missing licence, abandonment) applies to Openapi MCP gateway. That does not replace reading the code.

Good practice: grant only the rights needed (least privilege), require human approval for irreversible actions, and run the AI agent security check.

Project activity and maintenance

Created on April 18, 2026, the mroops0111/openapi-mcp-gateway repository has 7 stars and 0 forks, with 14 open issues. It has more stars than 19% of the servers in the directory. It received changes this month.

Stars measure attention, not quality: a recent, heavily promoted project can collect them fast, while a useful but niche server will have few.