Installation

REST API

No installation required. Use curl or any HTTP client.

curl -X POST https://api.50c.ai/tools/genius \
  -H "Authorization: Bearer cv_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"problem": "Your question here"}'

CLI

Install via npm:

npm install -g 50c
# or run directly
npx 50c call genius --input '{"problem": "Your question"}'

Configure your API key:

50c config set key cv_YOUR_KEY

MCP Server

For Cursor, Claude Desktop, or Windsurf:

Cursor

1. Open Settings → Features → Model Context Protocol
2. Add server:

   {
     "50c": {
       "command": "npx",
       "args": ["-y", "50c"],
       "env": {
         "FIFTYC_API_KEY": "cv_YOUR_KEY"
       }
     }
   }

Claude Desktop

1. Open Settings → Developer → Edit Config
2. Add to claude_desktop_config.json:

   {
     "mcpServers": {
       "50c": {
         "command": "npx",
         "args": ["-y", "50c"],
         "env": {
           "FIFTYC_API_KEY": "cv_YOUR_KEY"
         }
       }
     }
   }

Python SDK

pip install fiftyc

from fiftyc import FiftyC

client = FiftyC(api_key="cv_YOUR_KEY")
result = client.genius("What is 2+2?")
print(result)