AIClient2API

AIClient2API is a model router/gateway - Self-hosted multi-protocol AI API proxy for Antigravity, Codex, Grok, Kiro, OpenAI, Claude, and custom providers. Supports OpenAI-compatible API, Claude API, Gemini protocol conversion, GPT, Grok Build, Claude Opus, Gemini Pro, Kimi, MiniMax, provider pools, smart routing, and automatic failover.

Overview

A powerful proxy that can unify the requests of various client-only large model APIs (Gemini CLI, Antigravity, Codex, Grok, Kiro ...), simulate requests, and encapsulate them into a local OpenAI-compatible interface.

Sponsors are listed in chronological order; all are recommended for registration and use.

PackyCode is a reliable and efficient API relay service provider, offering relay services for Claude Code, Codex, Gemini, and more. PackyCode provides special discounts for our software users: register using this link and enter the AIClient2API promo code during recharge to get 10% off .

Thanks to APIKEY.FUN for sponsoring this project! APIKEY.FUN is a professional enterprise-grade AI relay station, dedicated to providing stable, efficient, and low-cost AI model API access services for enterprises and individual developers. The platform supports mainstream popular models such as Claude, OpenAI, and Gemini, with prices as low as 7% of the official original price. Register through the project's exclusive link to enjoy an exclusive discount of up to 5% off (95% of original price) for permanent recharges.

AIClient2API is open-source, written primarily in JavaScript, with 8,405 GitHub stars under the GPL-3.0 license. The latest release is v3.3.3 (2026-07-06).

Key capabilities

From the project's documentation:

• Free Advanced Models: Use Claude Opus for free via Kiro API mode, reducing usage costs
• Full-Chain Log Recording: Capture all request and response data, supporting auditing and debugging
• Private Dataset Construction: Quickly build proprietary training datasets based on log data
• Web UI Management Console: Real-time configuration management, health status monitoring, API testing and log viewing
• Modular Architecture: Based on strategy and adapter patterns, adding new model providers requires only 3 steps
• Complete Test Coverage: Integration and unit test coverage 90%+, ensuring code quality

How it fits a local-AI stack

AIClient2API runs on your own hardware, so pair it with a model and a GPU sized to your needs. Use the VRAM calculator to pick a model that fits your card, and see what you can run for hardware guidance. Related model router/gateways in the directory:

• "litellm"
• "PhoneClaw"

Sources

• Source code & docs: justlovemaki/AIClient2API
• Official website: https://aiproxy.justlikemaki.vip

Stats from GitHub, 2026-07-11.