This is a durable gateway demo — the headline is one wallet replacing five API keys. A sandboxed client can’t reach five real frontier models at once; here it’s one
pay per model, gasless, no signup.The prompt
What runs
POST /anthropic/v1/messages— Claude’s answer (~$0.02)POST /openai/v1/chat/completions— GPT’s answer (~$0.02)POST /gemini/v1beta/models/gemini-2.5-pro— Gemini’s answer (~$0.04)POST /groq/v1/chat/completions— Llama (on Groq) answer (~$0.02)POST /deepseek/v1/chat/completions— DeepSeek’s answer (~$0.02)POST /anthropic/v1/messages— Claude judges all five (~$0.02)
Run it
Claude Desktop (MCP)
SDK
Expected output
Extend it
- Add Mistral (
/mistral/v1/chat/completions) or Cohere (/cohere/v1/chat) to widen the field - Swap Gemini 2.5 Pro for Flash (
/gemini/v1beta/models/gemini-2.5-flash) to bake off on cost too - Time each call to compare latency, not just quality — Groq usually wins that one
- Render the scorecard to a PDF with PDFShift (
/pdfshift/v1/convert) for a shareable eval
