cita-777/metapi

Metapi is an API aggregation gateway that consolidates multiple AI model relay services into a single unified interface.

The problem it solves is the fragmentation of managing multiple API keys and accounts across different AI relay platforms. Rather than maintaining separate credentials and monitoring balances across services like New API, One API, OneHub, DoneHub, Veloera, AnyRouter, and Sub2API, Metapi provides a single API key and entry point. It automatically discovers available models across all connected services, performs intelligent routing to direct requests to the most cost-effective provider, and presents a unified model list to clients.

Metapi suits developers who work with multiple AI relay services and want to simplify credential management and optimize costs through automatic routing. It is particularly valuable for those running applications that need access to diverse model options without manually switching between different API endpoints or managing separate keys. The tool is designed for self-hosted deployment, with documentation covering setup, configuration, and client integration.

The project maintains active development with regular updates and deployment options including Docker support. The codebase is written in TypeScript and requires Node.js, indicating a modern development approach. Documentation is comprehensive, covering getting started, deployment, configuration, and client integration scenarios. The project provides an online demo environment for users to experience functionality without local deployment, though with the caveat that it uses free-tier models and is not suitable for storing sensitive credentials.