justlikemaki/aiclient-2-api

AIClient2API is an API proxy service that breaks through client limitations, converting free large models originally restricted to client use only (such as Gemini CLI, Qwen Code Plus, Kiro Claude) into standard OpenAI-compatible interfaces that can be called by any application. Built on Node.js, it supports intelligent conversion between three major protocols (OpenAI, Claude, Gemini), enabling tools like Cherry-Studio, NextChat, and Cline to freely use advanced models such as Claude Sonnet 4.5, Gemini 2.5 Flash, and Qwen3 Coder Plus at scale. The project adopts a modular architecture based on strategy and adapter patterns, with built-in account pool management, intelligent polling, automatic failover, and health check mechanisms, ensuring 99.9% service availability.

[!NOTE] 🎉 Important Milestone

• Thanks to Ruan Yifeng for the recommendation in Weekly Issue 359

📅 Version Update Log

• 2025.11.30 - Added Antigravity protocol support, enabling access to Gemini 3 Pro, Claude Sonnet 4.5, and other models via Google internal interfaces
• 2025.11.16 - Added Ollama protocol support, unified interface to access all supported models (Claude, Gemini, Qwen, OpenAI, etc.)
• 2025.11.11 - Added Web UI management console, supporting real-time configuration management and health status monitoring
• 2025.11.06 - Added support for Gemini 3 Preview, enhanced model compatibility and performance optimization
• 2025.10.18 - Kiro open registration, new accounts get 500 credits, full support for Claude Sonnet 4.5
• 2025.09.01 - Integrated Qwen Code CLI, added qwen3-coder-plus model support
• 2025.08.29 - Released account pool management feature, supporting multi-account polling, intelligent failover, and automatic degradation strategies
  • Configuration: Add PROVIDER_POOLS_FILE_PATH parameter in config.json
  • Reference configuration: provider_pools.json

---

💡 Core Advantages

🎯 Unified Access, One-Stop Management

• Multi-Model Unified Interface: Through standard OpenAI-compatible protocol, configure once to access mainstream large models including Gemini, Claude, GPT, Qwen Code, Kimi K2, GLM-4.6
• Flexible Switching Mechanism: Support dynamic model switching via startup parameters, Path routing, or environment variables to meet different scenario requirements
• Zero-Cost Migration: Fully compatible with OpenAI API specifications, tools like Cherry-Studio, NextChat, Cline can be used without modification
• Multi-Protocol Intelligent Conversion: Support intelligent conversion between OpenAI, Claude, and Gemini protocols for cross-protocol model invocation
  • Call Claude models using OpenAI protocol: Use claude-custom or claude-kiro-oauth providers
  • Call Gemini models using OpenAI protocol: Use gemini-cli-oauth provider
  • Call Gemini models using Claude protocol: Use gemini-cli-oauth provider
  • Call OpenAI models using Claude protocol: Use openai-custom or openai-qwen-oauth providers

🚀 Break Through Limitations, Improve Efficiency

• Bypass Official Restrictions: Utilize OAuth authorization mechanism to effectively break through rate and quota limits of free APIs like Gemini
• Free Advanced Models: Use Claude Sonnet 4.5 for free via Kiro API mode, use Qwen3 Coder Plus via Qwen OAuth mode, reducing usage costs
• Intelligent Account Pool Scheduling: Support multi-account polling, automatic failover, and configuration degradation, ensuring 99.9% service availability

🛡️ Secure and Controllable, Data Transparent

• Full* Log Recording**: Capture all request and response data, supporting auditing and debugging
• Private Dataset Construction: Quickly build proprietary training datasets based on log data
• System Prompt Management: Support override and append modes, achieving perfect combination of unified base instructions and personalized extensions

🔧 Developer-Friendly, Easy to Extend

• 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
• Containerized Deployment: Provides Docker support, one-click deployment, cross-platform operation
• MCP Protocol Support: Perfectly compatible with Model Context Protocol, easily extend functionality

---

📑 Quick Navigation

• 🐳 Docker Deployment
• 🎨 Model Protocol and Provider Relationship Diagram
• 🔧 Usage Instructions
• 🚀 Project Startup Parameters
• 📄 Open Source License
• 🙏 Acknowledgements
• ⚠️ Disclaimer

---

🎨 Model Protocol and Provider Relationship Diagram

This project supports multiple model providers through different protocols. The following is an overview of their relationships:

• OpenAI Protocol (P_OPENAI): Implemented by openai-custom, gemini-cli-oauth, claude-custom, claude-kiro-oauth, openai-qwen-oauth, and openaiResponses-custom model providers.
• Claude Protocol (P_CLAUDE): Implemented by claude-custom, claude-kiro-oauth, gemini-cli-oauth, openai-custom, openai-qwen-oauth, and openaiResponses-custom model providers.
• Gemini Protocol (P_GEMINI): Implemented by gemini-cli-oauth model provider.

Detailed relationship diagram:

mermaid
 
 graph TD
     subgraph Core_Protocols["Core Protocols"]
         P_OPENAI[OpenAI Protocol]
         P_GEMINI[Gemini Protocol]
         P_CLAUDE[Claude Protocol]
     end
 
     subgraph Supported_Model_Providers["Supported Model Providers"]
         MP_OPENAI[openai-custom]
         MP_GEMINI[gemini-cli-oauth]
         MP_CLAUDE_C[claude-custom]
         MP_CLAUDE_K[claude-kiro-oauth]
         MP_QWEN[openai-qwen-oauth]
         MP_OPENAI_RESP[openaiResponses-custom]
     end
 
     P_OPENAI ---|Support| MP_OPENAI
     P_OPENAI ---|Support| MP_QWEN
     P_OPENAI ---|Support| MP_GEMINI
     P_OPENAI ---|Support| MP_CLAUDE_C
     P_OPENAI ---|Support| MP_CLAUDE_K
     P_OPENAI ---|Support| MP_OPENAI_RESP
 
     P_GEMINI ---|Support| MP_GEMINI
 
     P_CLAUDE ---|Support| MP_CLAUDE_C
     P_CLAUDE ---|Support| MP_CLAUDE_K
     P_CLAUDE ---|Support| MP_GEMINI
     P_CLAUDE ---|Support| MP_OPENAI
     P_CLAUDE ---|Support| MP_QWEN
     P_CLAUDE ---|Support| MP_OPENAI_RESP
 
     style P_OPENAI fill:#f9f,stroke:#333,stroke-width:2px
     style P_GEMINI fill:#ccf,stroke:#333,stroke-width:2px
     style P_CLAUDE fill:#cfc,stroke:#333,stroke-width:2px

---

🔧 Usage Instructions

🚀 Quick Start with install-and-run Script

The easiest way to get started with AIClient-2-API is to use our automated installation and startup scripts. We provide both Linux/macOS and Windows versions:

For Linux/macOS Users

bash
# Make the script executable and run it
chmod +x install-and-run.sh
./install-and-run.sh

For Windows Users

cmd
# Run the batch file
install-and-run.bat

What the Script Does

The install-and-run script automatically:

1. Checks Node.js Installation: Verifies Node.js is installed and provides download link if missing
2. Dependency Management: Automatically installs npm dependencies if node_modules doesn't exist
3. File Validation: Ensures all required project files are present
4. Server Startup: Launches the API server on http://localhost:3000
5. Web UI Access: Provides direct access to the management console

Script Output Example

========================================
  AI Client 2 API Quick Install Script
========================================

[Check] Checking if Node.js is installed...
✅ Node.js is installed, version: v20.10.0
✅ Found package.json file
✅ node_modules directory already exists
✅ Project file check completed

========================================
  Starting AI Client 2 API Server...
========================================

🌐 Server will start on http://localhost:3000
📖 Visit http://localhost:3000 to view management interface
⏹️  Press Ctrl+C to stop server

💡 Tip: The script will automatically install dependencies and start the server. If you encounter any issues, the script provides clear error messages and suggested solutions.

---

📋 Core Features

Web UI Management Console

!Web UI

A comprehensive web-based management interface offering:

📊 Dashboard: System overview, interactive routing examples, and client configuration guides

⚙️ Configuration: Real-time parameter modification for all providers (Gemini, OpenAI, Claude, Kiro, Qwen) with advanced settings and file upload support

🔗 Provider Pools: Monitor active connections, provider health statistics, and enable/disable providers

📁 Config Files: Centralized OAuth credential management with search, filtering, and file operations

📜 Logs: Real-time system and request logs with management controls

🔐 Login: Authentication required (default: admin123, modify via pwd file)

Access: http://localhost:3000 → Login → Sidebar navigation → Immediate effect changes

MCP Protocol Support

This project is fully compatible with Model Context Protocol (MCP), enabling seamless integration with MCP-supporting clients for powerful functional extensions.

Multimodal Input Capabilities

Supports various input types including images and documents, providing richer interactive experiences and more powerful application scenarios.

Latest Model Support

Seamlessly supports the following latest large models, simply configure the corresponding OpenAI or Claude compatible interface in config.json:

• Kimi K2 - Moonshot AI's latest flagship model
• GLM-4.5 - Zhipu AI's latest version
• Qwen Code - Alibaba Tongyi Qianwen code-specific model
• Gemini 3 - Google's latest preview model
• Claude Sonnet 4.5 - Anthropic's latest flagship model

---

🔐 Authorization Configuration Guide

Gemini CLI OAuth Configuration

1. Obtain OAuth Credentials: Visit Google Cloud Console to create a project and enable Gemini API
2. First Authorization: After using Gemini service, the command line will print Google authorization page, copy the page to browser for authorization, then return to command line
3. Credential Storage: After successful authorization, oauth_creds.json file will be automatically generated and saved to ~/.gemini directory
4. Project Configuration: Need to provide a valid Google Cloud project ID, can be specified via startup parameter --project-id

Qwen Code OAuth Configuration

1. First Authorization: After starting the service, the system will automatically open the authorization page in the browser
2. Credential Storage: After successful authorization, oauth_creds.json file will be automatically generated and saved to ~/.qwen directory
3. Recommended Parameters: Use official default parameters for best results

   json
   {
     "temperature": 0,
     "top_p": 1
   }
   

Kiro API Configuration

1. Environment Preparation: Download and install Kiro client
2. Complete Authorization: Log in to your account in the client to generate kiro-auth-token.json credential file
3. Best Practice: Recommended to use with Claude Code for optimal experience
4. Important Notice: Kiro service usage policy has been updated, please visit the official website for the latest usage restrictions and terms

Account Pool Management Configuration

1. Create Pool Configuration File: Create a configuration file referencing provider_pools.json.example
2. Configure Pool Parameter: Set PROVIDER_POOLS_FILE_PATH in config.json to point to the pool configuration file
3. Startup Parameter Configuration: Use --provider-pools-file <path> parameter to specify the pool configuration file path
4. Health Check: The system will automatically perform periodic health checks and remove unhealthy providers

---

🔄 Model Provider Switching

This project provides two flexible model switching methods to meet different usage scenario requirements.

Achieve instant switching by specifying provider identifier in API request path:

Usage Examples:

bash
# Configure in programming agents like Cline, Kilo
API_ENDPOINT=http://localhost:3000/claude-kiro-oauth
 
# Direct API call
curl http://localhost:3000/gemini-cli-oauth/v1/chat/completions \
  -H "Content-Type: application/json" \
  -d '{"model":"gemini-2.0-flash-exp","messages":[...]}'

Ollama Protocol Usage Examples

This project supports the Ollama protocol, allowing access to all supported models through a unified interface. The Ollama endpoint provides standard interfaces such as /api/tags, /api/chat, /api/generate, etc.

Ollama API Call Examples:

1. List all available models:

bash
curl http://localhost:3000/ollama/api/tags

2. Chat interface:

bash
curl http://localhost:3000/ollama/api/chat \
  -H "Content-Type: application/json" \
  -d '{
    "model": "[Claude] claude-sonnet-4.5",
    "messages": [
      {"role": "user", "content": "Hello"}
    ]
  }'

3. Specify provider using model prefix:

• [Kiro] - Access Claude models using Kiro API
• [Claude] - Use official Claude API
• [Gemini CLI] - Access via Gemini CLI OAuth
• [OpenAI] - Use official OpenAI API
• [Qwen CLI] - Access via Qwen OAuth

---

📁 Authorization File Storage Paths

Default storage locations for authorization credential files of each service:

Note: ~ represents the user home directory (Windows: C:\Users\username, Linux/macOS: /home/username or /Users/username)

Custom Path: Can specify custom storage location via relevant parameters in configuration file or environment variables

---

🚀 Project Startup Parameters

This project supports rich command-line parameter configuration, allowing flexible adjustment of service behavior as needed. The following is a detailed explanation of all startup parameters, displayed in functional groups:

🔧 Server Configuration Parameters

🤖 Model Provider Configuration Parameters

🧠 OpenAI Compatible Provider Parameters

🖥️ Claude Compatible Provider Parameters

🔐 Gemini OAuth Authentication Parameters

🎮 Kiro OAuth Authentication Parameters

🐼 Qwen OAuth Authentication Parameters

🌌 Antigravity OAuth Authentication Parameters

🔄 OpenAI Responses API Parameters

📝 System Prompt Configuration Parameters

📊 Log Configuration Parameters

🔄 Retry Mechanism Parameters

⏰ Scheduled Task Parameters

🎯 Account Pool Configuration Parameters

Usage Examples

bash
# Basic usage
node src/api-server.js

# Specify port and API key
node src/api-server.js --port 8080 --api-key my-secret-key

# Use OpenAI provider
node src/api-server.js --model-provider openai-custom --openai-api-key sk-xxx --openai-base-url https://api.openai.com/v1

# Use Claude provider
node src/api-server.js --model-provider claude-custom --claude-api-key sk-ant-xxx --claude-base-url https://api.anthropic.com

# Use OpenAI Responses API provider
node src/api-server.js --model-provider openaiResponses-custom --openai-api-key sk-xxx --openai-base-url https://api.openai.com/v1

# Use Gemini provider (Base64 credentials)
node src/api-server.js --model-provider gemini-cli-oauth --gemini-oauth-creds-base64 eyJ0eXBlIjoi... --project-id your-project-id

# Use Gemini provider (credentials file)
node src/api-server.js --model-provider gemini-cli-oauth --gemini-oauth-creds-file /path/to/credentials.json --project-id your-project-id

# Configure system prompt
node src/api-server.js --system-prompt-file custom-prompt.txt --system-prompt-mode append

# Configure logging
node src/api-server.js --log-prompts console
node src/api-server.js --log-prompts file --prompt-log-base-name my-logs

# Configure Account Pool
node src/api-server.js --provider-pools-file ./provider_pools.json

# Complete example
node src/api-server.js \
  --host 0.0.0.0 \
  --port 3000 \
  --api-key my-secret-key \
  --model-provider gemini-cli-oauth \
  --project-id my-gcp-project \
  --gemini-oauth-creds-file ./credentials.json \
  --system-prompt-file ./custom-system-prompt.txt \
  --system-prompt-mode overwrite \
  --log-prompts file \
  --prompt-log-base-name api-logs \
  --provider-pools-file ./provider_pools.json

---

📄 Open Source License

This project operates under the GNU General Public License v3 (GPLv3). For complete details, please refer to the LICENSE file located in the root directory.

🙏 Acknowledgements

The development of this project was significantly inspired by the official Google Gemini CLI and incorporated some code implementations from Cline 3.18.0's gemini-cli.ts. We extend our sincere gratitude to the official Google team and the Cline development team for their exceptional work!

Contributor List

Thanks to all the developers who contributed to the AIClient-2-API project:

🌟 Star History

![Star History Chart]([***]