LLM Completions MCP server for AI agents

This MCP server allows you to integrate various AI chat providers (OpenAI, Perplexity, Groq, xAI, PyroPrompts, etc.) with Claude through the Model Context Protocol. It functions as a bridge that enables Claude to communicate with any OpenAI SDK compatible chat completion API.

Installation

You can use this MCP server via npx or by building it locally.

Using npx (Recommended)

To add an AI provider to Claude Desktop, first edit the Claude configuration file:

MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%/Claude/claude_desktop_config.json

Then add the server configuration to the mcpServers section:

{
  "mcpServers": {
    "chat-openai": {
      "command": "npx",
      "args": [
        "@pyroprompts/any-chat-completions-mcp"
      ],
      "env": {
        "AI_CHAT_KEY": "OPENAI_KEY",
        "AI_CHAT_NAME": "OpenAI",
        "AI_CHAT_MODEL": "gpt-4o",
        "AI_CHAT_BASE_URL": "https://api.openai.com/v1"
      }
    }
  }
}

Building and Installing Locally

If you prefer to build the server locally:

Clone the repository
Install dependencies:
```
npm install
```
Build the server:
```
npm run build
```

Configure Claude Desktop to use your local build:

{
  "mcpServers": {
    "chat-openai": {
      "command": "node",
      "args": [
        "/path/to/any-chat-completions-mcp/build/index.js"
      ],
      "env": {
        "AI_CHAT_KEY": "OPENAI_KEY",
        "AI_CHAT_NAME": "OpenAI",
        "AI_CHAT_MODEL": "gpt-4o",
        "AI_CHAT_BASE_URL": "https://api.openai.com/v1"
      }
    }
  }
}

Installing via Smithery

You can also use Smithery for a simplified installation:

npx -y @smithery/cli install any-chat-completions-mcp-server --client claude

Usage

Environment Configuration

Configure the MCP server using these environment variables:

AI_CHAT_KEY: Your API key for the provider
AI_CHAT_NAME: Display name for the provider (e.g., "OpenAI")
AI_CHAT_MODEL: Model to use (e.g., "gpt-4o", "sonar")
AI_CHAT_BASE_URL: Base URL for the API endpoint

Multiple Providers

You can add multiple providers to Claude Desktop by defining each one separately in your configuration:

{
  "mcpServers": {
    "chat-pyroprompts": {
      "command": "node",
      "args": [
        "/path/to/any-chat-completions-mcp/build/index.js"
      ],
      "env": {
        "AI_CHAT_KEY": "PYROPROMPTS_KEY",
        "AI_CHAT_NAME": "PyroPrompts",
        "AI_CHAT_MODEL": "ash",
        "AI_CHAT_BASE_URL": "https://api.pyroprompts.com/openaiv1"
      }
    },
    "chat-perplexity": {
      "command": "node",
      "args": [
        "/path/to/any-chat-completions-mcp/build/index.js"
      ],
      "env": {
        "AI_CHAT_KEY": "PERPLEXITY_KEY",
        "AI_CHAT_NAME": "Perplexity",
        "AI_CHAT_MODEL": "sonar",
        "AI_CHAT_BASE_URL": "https://api.perplexity.ai"
      }
    },
    "chat-openai": {
      "command": "node",
      "args": [
        "/path/to/any-chat-completions-mcp/build/index.js"
      ],
      "env": {
        "AI_CHAT_KEY": "OPENAI_KEY",
        "AI_CHAT_NAME": "OpenAI",
        "AI_CHAT_MODEL": "gpt-4o",
        "AI_CHAT_BASE_URL": "https://api.openai.com/v1"
      }
    }
  }
}

Using with LibreChat

For LibreChat integration, add configuration like this:

chat-perplexity:
  type: stdio
  command: npx
  args:
    - -y
    - @pyroprompts/any-chat-completions-mcp
  env:
    AI_CHAT_KEY: "pplx-012345679"
    AI_CHAT_NAME: Perplexity
    AI_CHAT_MODEL: sonar
    AI_CHAT_BASE_URL: "https://api.perplexity.ai"
    PATH: '/usr/local/bin:/usr/bin:/bin'

Debugging

Since MCP servers communicate over stdio, you can use the MCP Inspector for debugging:

npm run inspector

This will provide a URL to access debugging tools in your browser.

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "chat-openai" '{"command":"npx","args":["@pyroprompts/any-chat-completions-mcp"],"env":{"AI_CHAT_KEY":"OPENAI_KEY","AI_CHAT_NAME":"OpenAI","AI_CHAT_MODEL":"gpt-4o","AI_CHAT_BASE_URL":"https://api.openai.com/v1"}}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "chat-openai": {
            "command": "npx",
            "args": [
                "@pyroprompts/any-chat-completions-mcp"
            ],
            "env": {
                "AI_CHAT_KEY": "OPENAI_KEY",
                "AI_CHAT_NAME": "OpenAI",
                "AI_CHAT_MODEL": "gpt-4o",
                "AI_CHAT_BASE_URL": "https://api.openai.com/v1"
            }
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json
Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "chat-openai": {
            "command": "npx",
            "args": [
                "@pyroprompts/any-chat-completions-mcp"
            ],
            "env": {
                "AI_CHAT_KEY": "OPENAI_KEY",
                "AI_CHAT_NAME": "OpenAI",
                "AI_CHAT_MODEL": "gpt-4o",
                "AI_CHAT_BASE_URL": "https://api.openai.com/v1"
            }
        }
    }
}

3. Restart Claude Desktop for the changes to take effect