Proxima
Multi-AI MCP Server - Connect ChatGPT, Claude, Gemini & Perplexity to your coding tools without any API
What is Proxima?
Proxima is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to multi-ai mcp server - connect chatgpt, claude, gemini & perplexity to your coding tools without any api
Multi-AI MCP Server - Connect ChatGPT, Claude, Gemini & Perplexity to your coding tools without any API
This server falls under the Coding Agents category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- Multi-AI MCP Server - Connect ChatGPT, Claude, Gemini & Perp
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx proximaConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Proxima
Proxima is a multi-AI MCP server that routes requests to ChatGPT, Claude, Gemini, and Perplexity from a single interface, eliminating the need to manage separate API keys for each provider. It exposes 45+ MCP tools covering AI queries, code fixing, test writing, security audits, multi-model debates, and deep web search, all served over a local REST API or WebSocket stream. Developers use it to compare model outputs, chain queries across providers, and integrate multiple AI assistants into coding editors like Cursor and Windsurf without juggling individual provider accounts.
Prerequisites
- Node.js 18+ installed on your machine
- An MCP-compatible client such as Claude Desktop, Cursor, or Windsurf
- Proxima application installed and running locally (see installation steps)
- Accounts with the AI providers you want to use (ChatGPT, Gemini, Perplexity, or Claude)
Install Proxima from source
Clone the repository and install Node.js dependencies. Alternatively, download a pre-built installer from the GitHub Releases page for Windows.
git clone https://github.com/Zen4-bit/Proxima.git
cd Proxima
npm install
npm startInstall the CLI to PATH
Make the proxima command available system-wide so it can be invoked from any terminal.
# macOS / Linux
sudo npm link
# Windows: open Settings in the Proxima app and click 'Install CLI to PATH'Note the MCP server script path
The MCP server entry point is the file src/mcp-server-v3.js inside the cloned directory. You will need its absolute path for editor configuration.
Configure Claude Desktop or your editor
Add the MCP server to your client config file. Replace the path with the actual absolute path to your Proxima installation.
{
"mcpServers": {
"proxima": {
"command": "node",
"args": ["/absolute/path/to/Proxima/src/mcp-server-v3.js"]
}
}
}Connect AI providers inside Proxima
Open the Proxima app and authenticate with each AI provider you want to use. Proxima handles credential storage so individual MCP tools do not require API keys in the config.
Test the integration
Use the CLI or your editor's AI chat to query multiple models and confirm the MCP tools are reachable.
proxima ask "Explain the difference between async/await and Promises"Proxima Examples
Client configuration
Claude Desktop config block for Proxima using the local Node.js server script.
{
"mcpServers": {
"proxima": {
"command": "node",
"args": ["/absolute/path/to/Proxima/src/mcp-server-v3.js"]
}
}
}Prompts to try
Example prompts that leverage Proxima's multi-model and code-focused tools.
- "Ask all AIs: what is the best approach to rate-limiting a REST API?"
- "Fix this Python error: TypeError: 'NoneType' object is not subscriptable"
- "Have Claude and ChatGPT debate the best database for a real-time analytics app"
- "Run a security audit on this SQL query: SELECT * FROM users WHERE id='" + req.query.id
- "Deep search for recent papers on transformer efficiency improvements"Troubleshooting Proxima
MCP client cannot connect to the Proxima server
Confirm the Proxima app is running (npm start) before starting your editor or Claude Desktop. The MCP server runs as a subprocess — if Proxima is not already started, node mcp-server-v3.js may fail to bind. Check that the file path in your config is an absolute path.
AI tools return 'provider not authenticated' errors
Open the Proxima GUI and re-authenticate with the failing provider. Credentials are stored per-provider and may expire. The CLI and MCP tools rely on the same credential store as the GUI.
proxima CLI command not found after npm link
On macOS/Linux confirm sudo npm link completed without errors and that the npm global bin directory is in your PATH. Run 'npm bin -g' to find the directory and add it to your shell profile if needed.
Frequently Asked Questions about Proxima
What is Proxima?
Proxima is a Model Context Protocol (MCP) server that multi-ai mcp server - connect chatgpt, claude, gemini & perplexity to your coding tools without any api It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Proxima?
Follow the installation instructions on the Proxima GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with Proxima?
Proxima works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Proxima free to use?
Yes, Proxima is open source and available under the NOASSERTION license. You can use it freely in both personal and commercial projects.
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Browse More Coding Agents MCP Servers
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Set Up Proxima in Your Editor
Choose your AI client for step-by-step setup instructions.
Quick Config Preview
Add this to your claude_desktop_config.json or .cursor/mcp.json
Ready to use Proxima?
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