curl https://api.saturn-pay.com/v1/capabilities/reason \
  -H "Authorization: Bearer sk_agt_..."

const response = await fetch('https://api.saturn-pay.com/v1/capabilities/reason', {
  headers: { 'Authorization': 'Bearer sk_agt_...' }
});

const capability = await response.json();

{
  "name": "reason",
  "description": "LLM inference — completions, summarization, extraction",
  "defaultProvider": "openai",
  "providers": [
    {
      "name": "openai",
      "models": [
        {
          "id": "gpt-4o",
          "inputPricePer1kTokens": 2.5,
          "outputPricePer1kTokens": 10.0,
          "maxTokens": 128000
        },
        {
          "id": "gpt-4o-mini",
          "inputPricePer1kTokens": 0.15,
          "outputPricePer1kTokens": 0.6,
          "maxTokens": 128000
        }
      ]
    },
    {
      "name": "anthropic",
      "models": [
        {
          "id": "claude-sonnet-4-20250514",
          "inputPricePer1kTokens": 3.0,
          "outputPricePer1kTokens": 15.0,
          "maxTokens": 200000
        }
      ]
    }
  ]
}