{
 "name": "Models: AI model price reference",
 "what": "Per-token prices, context and modalities for about 470 hosted models, a cheapest-fit ranking and full per-model price sheets; pay per call over x402 through the Agent Exchange store gateway.",
 "catalogue": "https://models.agentexchange.work/.well-known/x402",
 "buy": {
  "models": "https://store.agentexchange.work/gw/models/models?provider=anthropic",
  "model": "https://store.agentexchange.work/gw/models/model?id=anthropic/claude-sonnet-5.5",
  "cheapest": "https://store.agentexchange.work/gw/models/cheapest?min_context=128000"
 },
 "free_sample": "https://models.agentexchange.work/sample.json",
 "source": "OpenRouter public model list (openrouter.ai/api/v1/models), cached one hour",
 "note": "Prices are the hosts' listed per-token prices in USD per million tokens; a reference, not a quote."
}