OpenAPI MCP Gateway

This is a helper program that lets your AI talk to web services that have a public instruction manual (called an OpenAPI or Swagger spec). You point it at one or more of those manuals, and your AI gains the ability to use those services. It is handy if you want your AI to work with tools like GitHub, Asana, or your company's own internal system without building a custom connector for each one.

What this MCP server does

You ask your AI to do something, like list your GitHub repositories or check a customer record. Your AI sends that request to this helper program. The helper looks up the right instructions in the service's manual (the OpenAPI spec), adds the right password or token, and talks to the actual service on your behalf. The service sends back the answer, and the helper passes it to your AI, which shows it to you in the chat. You can connect several services at once, each with its own password, all running in one helper.

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What you can do with it

• Connect your AI to a public API that needs no login, like the Petstore demo
• Connect to APIs that use a fixed token or API key, like GitHub
• Connect to services that use OAuth2 login, like Asana, so each person gets their own access
• Run several APIs side by side in one helper, each at its own web address
• Turn large APIs into a few simple actions so your AI does not get overwhelmed
• Expose read-only parts of an API as resources your AI can browse
• Add this helper to a desktop app like Claude Desktop using a simple config

Try asking your AI

• “List my GitHub repositories”
• “Show me the details of order 123 in the Petstore”
• “What workspaces do I have in Asana?”
• “Find the open issues in the project my-org/my-repo”

What it gives back to you

You get back answers, lists, and details in your chat. For example, if you ask for your GitHub repositories, you see a list of repository names and descriptions. If you ask for a specific record, you see its fields and values. If you ask it to make a change, it tells you whether the change worked.

Before you start

Who it's for

This is most useful for people who want their AI to work with several web services at once, like developers, IT staff, or anyone who manages multiple online tools and wants to avoid building separate connections for each one.