A Model Context Protocol (MCP) server for Cairo and Starknet development assistance via the Cairo Coder API.
Use this MCP server directly with npx:
npx -y @kasarlabs/cairo-coder-mcp
The server supports two modes of operation:
Use the official Cairo Coder API with your API key.
Environment Variables:
CAIRO_CODER_API_KEY: Your Cairo Coder API key (required)MCP Client Setup:
{
"mcpServers": {
"cairo-coder": {
"command": "npx",
"args": ["-y", "@kasarlabs/cairo-coder-mcp"],
"env": {
"CAIRO_CODER_API_KEY": "your-api-key-here"
}
}
}
}
Use a local or custom Cairo Coder API endpoint (no API key required).
Environment Variables:
CAIRO_CODER_API_ENDPOINT: Your local endpoint URL (e.g., “http://localhost:8000”)MCP Client Setup:
{
"mcpServers": {
"cairo-coder": {
"command": "npx",
"args": ["-y", "@kasarlabs/cairo-coder-mcp"],
"env": {
"CAIRO_CODER_API_ENDPOINT": "http://localhost:8000"
}
}
}
}
Note: When using
CAIRO_CODER_API_ENDPOINT, the server automatically switches to local mode and no API key is required or used.
Get help with Cairo and Starknet development tasks.
Parameters:
query (string, required): Your Cairo/Starknet development questioncontext (string, optional): Additional context or code snippetsExamples:
// Simple request
{
"query": "Write a simple Cairo contract that implements a counter"
}
// With context
{
"query": "How can I optimize this contract?",
"context": "#[starknet::contract]\nmod Counter {\n // existing code here\n}"
}
git clone <repository-url>
cd cairo-coder-mcp
npm install
npm run build # Build the project
npm run dev # Start in development mode
npm start # Start in production mode
MIT
For issues and questions:
Contributions are welcome! Please check the contribution guidelines before submitting a PR.
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