Generates MCP tool code from OpenAPI specs
If you already use Api To MCP, the api to mcp mcp server is the piece that lets your assistant work with it directly. Generates MCP tool code from OpenAPI specs.
A tool that creates MCP (Model Context Protocol) servers from OpenAPI/Swagger specifications, enabling AI assistants to interact with your APIs. Create your own branded and customized MCPs for specific APIs or services.
This project creates a dynamic MCP server that transforms OpenAPI specifications into MCP tools. It enables seamless integration of REST APIs with AI assistants via the Model Context Protocol, turning any API into an AI-accessible tool.
The toolset is worth reading before you wire it up, because it tells you what the integration is really for:
Installation — The Installation tool exposed by this serverConfiguration is passed through the environment: GOOGLE_API_KEY, YOUR_API_KEY, OPENAPI_SPEC_PATH, TARGET_API_BASE_URL. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
The server ships on npm as your-custom-mcp-server, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.
This sits in the developer tooling group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Api To MCP's toolset — Installation — is a fair guide to whether it matches your workflow. It is maintained by TykTechnologies; worth a glance at recent repository activity before you build anything load-bearing on it.
This entry was verified against Api To MCP's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.
| Tool | What it does |
|---|---|
| Installation | The Installation tool exposed by this server. |
{
"mcpServers": {
"api-tools": {
"command": "npx",
"args": [
"-y",
"@tyk-technologies/api-to-mcp@latest",
"--spec",
"https://petstore3.swagger.io/api/v3/openapi.json"
],
"enabled": true
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| GOOGLE_API_KEY | Credential the server authenticates with. | Yes |
| YOUR_API_KEY | Credential the server authenticates with. | Yes |
| OPENAPI_SPEC_PATH | Filesystem location the server is allowed to use. | Optional |
| TARGET_API_BASE_URL | Endpoint or connection string the server talks to. | Yes |
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