# Sezzlee OpenAPI MCP server

> Exposes an OpenAPI document as a search-first tool catalog for AI agents to discover and invoke API operations over a remote backend.

- Repository: https://github.com/sezzlee/mcp
- Page: https://hostedmcp.org/servers/sezzlee/openapi
- Transport: stdio
- Stars: 1
- License: MIT
- Latest version: 1.0.0

## Install

### Claude Code

```sh
claude mcp add --env 'SEZZLEE_OPENAPI_CONFIG=<SEZZLEE_OPENAPI_CONFIG>' openapi -- npx -y @sezzlee/openapi-mcp
```

### Cursor (`~/.cursor/mcp.json`)

```json
{
  "mcpServers": {
    "openapi": {
      "command": "npx",
      "args": [
        "-y",
        "@sezzlee/openapi-mcp"
      ],
      "env": {
        "SEZZLEE_OPENAPI_CONFIG": "<SEZZLEE_OPENAPI_CONFIG>"
      }
    }
  }
}
```

### VS Code (`.vscode/mcp.json`)

```json
{
  "servers": {
    "openapi": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@sezzlee/openapi-mcp"
      ],
      "env": {
        "SEZZLEE_OPENAPI_CONFIG": "<SEZZLEE_OPENAPI_CONFIG>"
      }
    }
  }
}
```

### VS Code CLI

```sh
code --add-mcp '{"name":"openapi","type":"stdio","command":"npx","args":["-y","@sezzlee/openapi-mcp"],"env":{"SEZZLEE_OPENAPI_CONFIG":"<SEZZLEE_OPENAPI_CONFIG>"}}'
```

### Claude Desktop (`claude_desktop_config.json`)

```json
{
  "mcpServers": {
    "openapi": {
      "command": "npx",
      "args": [
        "-y",
        "@sezzlee/openapi-mcp"
      ],
      "env": {
        "SEZZLEE_OPENAPI_CONFIG": "<SEZZLEE_OPENAPI_CONFIG>"
      }
    }
  }
}
```

### Codex

```sh
codex mcp add openapi --env 'SEZZLEE_OPENAPI_CONFIG=<SEZZLEE_OPENAPI_CONFIG>' -- npx -y @sezzlee/openapi-mcp
```

### Codex config.toml (`~/.codex/config.toml`)

```toml
[mcp_servers.openapi]
command = "npx"
args = ["-y", "@sezzlee/openapi-mcp"]

[mcp_servers.openapi.env]
SEZZLEE_OPENAPI_CONFIG = "<SEZZLEE_OPENAPI_CONFIG>"
```

### Gemini CLI

```sh
gemini mcp add -s user -e 'SEZZLEE_OPENAPI_CONFIG=<SEZZLEE_OPENAPI_CONFIG>' openapi npx -- -y @sezzlee/openapi-mcp
```

### Gemini settings.json (`~/.gemini/settings.json`)

```json
{
  "mcpServers": {
    "openapi": {
      "command": "npx",
      "args": [
        "-y",
        "@sezzlee/openapi-mcp"
      ],
      "env": {
        "SEZZLEE_OPENAPI_CONFIG": "<SEZZLEE_OPENAPI_CONFIG>"
      }
    }
  }
}
```

## Environment variables

| Name | Required | Secret | Description |
|---|---|---|---|
| `SEZZLEE_OPENAPI_CONFIG` | yes | no | Path to the server config file |

## FAQ

### What transport methods are supported?

The server supports both stdio and streamable HTTP transports.

### Can I use a local OpenAPI file as a source?

Yes, the source can be either a local file path relative to the configuration file or an HTTP(S) URL.