🚀 Kiro OpenAI Gateway
OpenAI-compatible proxy gateway for Kiro IDE API (AWS CodeWhisperer)
Use Claude models through any tools that support the OpenAI API
Features • Quick Start • Configuration • API Reference • License
✨ Features
| Feature | Description |
|---|---|
| 🔌 OpenAI-compatible API | Works with any OpenAI client out of the box |
| 💬 Full message history | Passes complete conversation context |
| 🛠️ Tool Calling | Supports function calling in OpenAI format |
| 📡 Streaming | Full SSE streaming support |
| 🔄 Retry Logic | Automatic retries on errors (403, 429, 5xx) |
| 📋 Extended model list | Including versioned models |
| 🔐 Smart token management | Automatic refresh before expiration |
| 🧩 Modular architecture | Easy to extend with new providers |
🚀 Quick Start
Prerequisites
- Python 3.10+
- Kiro IDE with logged in account
Installation
# Clone the repository
git clone https://github.com/Jwadow/kiro-openai-gateway.git
cd kiro-openai-gateway
# Install dependencies
pip install -r requirements.txt
# Configure (see Configuration section)
cp .env.example .env
# Edit .env with your credentials
# Start the server
python main.py
The server will be available at http://localhost:8000
⚙️ Configuration
Option 1: JSON Credentials File
Specify the path to the credentials file:
KIRO_CREDS_FILE="~/.aws/sso/cache/kiro-auth-token.json"
# Password to protect YOUR proxy server (make up any secure string)
# You'll use this as api_key when connecting to your gateway
PROXY_API_KEY="my-super-secret-password-123"
📄 JSON file format
{
"accessToken": "eyJ...",
"refreshToken": "eyJ...",
"expiresAt": "2025-01-12T23:00:00.000Z",
"profileArn": "arn:aws:codewhisperer:us-east-1:...",
"region": "us-east-1"
}
Option 2: Environment Variables (.env file)
Create a .env file in the project root:
# Required
REFRESH_TOKEN="your_kiro_refresh_token"
# Password to protect YOUR proxy server (make up any secure string)
PROXY_API_KEY="my-super-secret-password-123"
# Optional
PROFILE_ARN="arn:aws:codewhisperer:us-east-1:..."
KIRO_REGION="us-east-1"
Getting the Refresh Token
The refresh token can be obtained by intercepting Kiro IDE traffic. Look for requests to:
prod.us-east-1.auth.desktop.kiro.dev/refreshToken
📡 API Reference
Endpoints
| Endpoint | Method | Description |
|---|---|---|
/ |
GET | Health check |
/health |
GET | Detailed health check |
/v1/models |
GET | List available models |
/v1/chat/completions |
POST | Chat completions |
Available Models
| Model | Description |
|---|---|
claude-opus-4-5 |
Top-tier model |
claude-opus-4-5-20251101 |
Top-tier model (versioned) |
claude-sonnet-4-5 |
Enhanced model |
claude-sonnet-4-5-20250929 |
Enhanced model (versioned) |
claude-sonnet-4 |
Balanced model |
claude-sonnet-4-20250514 |
Balanced model (versioned) |
claude-haiku-4-5 |
Fast model |
claude-3-7-sonnet-20250219 |
Legacy model |
💡 Usage Examples
🔹 Simple cURL Request
curl http://localhost:8000/v1/chat/completions \
-H "Authorization: Bearer my-super-secret-password-123" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-sonnet-4-5",
"messages": [{"role": "user", "content": "Hello!"}],
"stream": true
}'
Note: Replace
my-super-secret-password-123with thePROXY_API_KEYyou set in your.envfile.
🔹 Streaming Request
curl http://localhost:8000/v1/chat/completions \
-H "Authorization: Bearer my-super-secret-password-123" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-sonnet-4-5",
"messages": [
{"role": "system", "content": "You are a helpful assistant."},
{"role": "user", "content": "What is 2+2?"}
],
"stream": true
}'
🔹 With Tool Calling
curl http://localhost:8000/v1/chat/completions \
-H "Authorization: Bearer my-super-secret-password-123" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-sonnet-4-5",
"messages": [{"role": "user", "content": "What is the weather in London?"}],
"tools": [{
"type": "function",
"function": {
"name": "get_weather",
"description": "Get weather for a location",
"parameters": {
"type": "object",
"properties": {
"location": {"type": "string", "description": "City name"}
},
"required": ["location"]
}
}
}]
}'
🐍 Python OpenAI SDK
from openai import OpenAI
client = OpenAI(
base_url="http://localhost:8000/v1",
api_key="my-super-secret-password-123" # Your PROXY_API_KEY from .env
)
response = client.chat.completions.create(
model="claude-sonnet-4-5",
messages=[
{"role": "system", "content": "You are a helpful assistant."},
{"role": "user", "content": "Hello!"}
],
stream=True
)
for chunk in response:
if chunk.choices[0].delta.content:
print(chunk.choices[0].delta.content, end="")
🦜 LangChain
from langchain_openai import ChatOpenAI
llm = ChatOpenAI(
base_url="http://localhost:8000/v1",
api_key="my-super-secret-password-123", # Your PROXY_API_KEY from .env
model="claude-sonnet-4-5"
)
response = llm.invoke("Hello, how are you?")
print(response.content)
📁 Project Structure
kiro-openai-gateway/
├── main.py # Entry point, FastAPI app creation
├── requirements.txt # Python dependencies
├── .env.example # Environment configuration example
│
├── kiro_gateway/ # Main package
│ ├── __init__.py # Package exports
│ ├── config.py # Configuration and constants
│ ├── models.py # Pydantic models for OpenAI API
│ ├── auth.py # KiroAuthManager - token management
│ ├── cache.py # ModelInfoCache - model caching
│ ├── utils.py # Helper utilities
│ ├── converters.py # OpenAI <-> Kiro conversion
│ ├── parsers.py # AWS SSE stream parsers
│ ├── streaming.py # Response streaming logic
│ ├── http_client.py # HTTP client with retry logic
│ ├── debug_logger.py # Debug logging (optional)
│ └── routes.py # FastAPI routes
│
├── tests/ # Tests
│ ├── unit/ # Unit tests
│ └── integration/ # Integration tests
│
└── debug_logs/ # Debug logs (generated when enabled)
🔧 Debugging
Debug logging is disabled by default. To enable, add to your .env:
# Debug logging mode:
# - off: disabled (default)
# - errors: save logs only for failed requests (4xx, 5xx) - recommended for troubleshooting
# - all: save logs for every request (overwrites on each request)
DEBUG_MODE=errors
Debug Modes
| Mode | Description | Use Case |
|---|---|---|
off |
Disabled (default) | Production |
errors |
Save logs only for failed requests (4xx, 5xx) | Recommended for troubleshooting |
all |
Save logs for every request | Development/debugging |
Debug Files
When enabled, requests are logged to the debug_logs/ folder:
| File | Description |
|---|---|
request_body.json |
Incoming request from client (OpenAI format) |
kiro_request_body.json |
Request sent to Kiro API |
response_stream_raw.txt |
Raw stream from Kiro |
response_stream_modified.txt |
Transformed stream (OpenAI format) |
app_logs.txt |
Application logs for the request |
error_info.json |
Error details (only on errors) |
🧪 Testing
# Run all tests
pytest
# Run unit tests only
pytest tests/unit/
# Run with coverage
pytest --cov=kiro_gateway
🔌 Extending with New Providers
The modular architecture makes it easy to add support for other providers:
- Create a new module
kiro_gateway/providers/new_provider.py - Implement the required classes:
NewProviderAuthManager— token managementNewProviderConverter— format conversionNewProviderParser— response parsing
- Add routes to
routes.pyor create a separate router
📜 License
This project is licensed under the GNU Affero General Public License v3.0 (AGPL-3.0).
This means:
- ✅ You can use, modify, and distribute this software
- ✅ You can use it for commercial purposes
- ⚠️ You must disclose source code when you distribute the software
- ⚠️ Network use is distribution — if you run a modified version on a server and let others interact with it, you must make the source code available to them
- ⚠️ Modifications must be released under the same license
See the LICENSE file for the full license text.
Why AGPL-3.0?
AGPL-3.0 ensures that improvements to this software benefit the entire community. If you modify this gateway and deploy it as a service, you must share your improvements with your users.
Contributor License Agreement (CLA)
By submitting a contribution to this project, you agree to the terms of our Contributor License Agreement (CLA). This ensures that:
- You have the right to submit the contribution
- You grant the maintainer rights to use and relicense your contribution
- The project remains legally protected
👤 Author
Jwadow — @Jwadow
⚠️ Disclaimer
This project is not affiliated with, endorsed by, or sponsored by Amazon Web Services (AWS), Anthropic, or Kiro IDE. Use at your own risk and in compliance with the terms of service of the underlying APIs.
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