agentutility — paid x402 endpoints for autonomous agents

{
  "type": "json",
  "example": {
    "note": "Prices are a list-price snapshot as of price_table_as_of; pass price_overrides for current or negotiated pricing.",
    "estimates": [
      {
        "known": true,
        "model": "gpt-4o-mini",
        "input_per_1m": 0.15,
        "price_source": "table",
        "output_per_1m": 0.6,
        "input_cost_usd": 0.15,
        "total_cost_usd": 0.3,
        "output_cost_usd": 0.15
      },
      {
        "known": true,
        "model": "claude-sonnet-4.5",
        "input_per_1m": 3,
        "price_source": "table",
        "output_per_1m": 15,
        "input_cost_usd": 3,
        "total_cost_usd": 6.75,
        "output_cost_usd": 3.75
      }
    ],
    "input_tokens": 1000000,
    "token_source": "input_tokens",
    "output_tokens": 250000,
    "cheapest_known": "gpt-4o-mini",
    "price_table_as_of": "2026-06-01"
  }
}