OpenAI-compatible chat completions with capacity-gated admission, no per-IP rate limit, di

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x5D17c40FD6b119dc6006C4Ab3C20a917FCaB2aCD",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2890",
    "maxTimeoutSeconds": 60
  },
  {
    "scheme": "exact",
    "network": "animica:1",
    "payTo": "anim1zqpsmegc0qcvzjfukm89xs0zeu3eqyyyel7kelehuszvwfarqypky2gr946ga",
    "asset": "ANM",
    "amount": "30544357680",
    "maxTimeoutSeconds": 60
  }
]

{
  "animica": {
    "catalog": "https://animica.dev/.well-known/x402",
    "content_type": "application/json",
    "currency": "USDC",
    "description": "OpenAI-compatible chat completions with capacity-gated admission, no per-IP rate limit, direct upstream routing and a 180 s timeout. Only sold while enough workers are live-serving; disabled by default.",
    "documentation": "https://animica.dev/x402#product-priority_inference",
    "free_trial": {
      "endpoint": "POST /x402/v1/chat/completions/trial",
      "limit_per_day": 1,
      "note": "Same code and same response shape as the paid endpoint. No payment, no payment headers. Quota is per client per UTC day; when it is spent this endpoint says so and points back here.",
      "price": "0",
      "url": "https://animica.dev/x402/v1/chat/completions/trial"
    },
    "name": "Priority inference",
    "openapi": "https://animica.dev/x402/openapi.json",
    "price": "0.002890",
    "product": "priority_inference",
    "provider": "Animica",
    "terms": {
      "amount_atomic": "2890",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "chain_id": 8453,
      "network": "eip155:8453",
      "pay_to": "0x5D17c40FD6b119dc6006C4Ab3C20a917FCaB2aCD",
      "scheme": "exact"
    },
    "x402_version": 2
  },
  "bazaar": {
    "discoverable": true,
    "info": {
      "input": {
        "body": {
          "messages": [
            {
              "content": "hi",
              "role": "user"
            }
          ],
          "model": "kimi-k3"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "detail": "priority inference is disabled by the operator (PRIORITY_INFERENCE_ENABLED=0)",
          "enabled": false,
          "error": "priority_inference_unavailable",
          "required": 2,
          "serving_workers": 0
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "properties": {
            "body": {
              "properties": {
                "max_tokens": {
                  "description": "completion budget",
                  "type": "integer"
                },
                "messages": {
                  "description": "OpenAI-style chat messages",
                  "type": "array"
                },
                "model": {
                  "description": "model id (see the free /v1/models)",
                  "type": "string"
                },
                "stream": {
                  "description": "must be false/absent — streaming is not yet supported on the paid path",
                  "type": "boolean"
                }
              },
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {},
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  },
  "discovery": {
    "discoverable": true,
    "info": {
      "input": {
        "bodyFields": {
          "max_tokens": {
            "description": "completion budget",
            "type": "integer"
          },
          "messages": {
            "description": "OpenAI-style chat messages",
            "type": "array"
          },
          "model": {
            "description": "model id (see the free /v1/models)",
            "type": "string"
          },
          "stream": {
            "description": "must be false/absent — streaming is not yet supported on the paid path",
            "type": "boolean"
          }
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "description": "OpenAI-compatible chat.completion object from the Animica serving bridge",
        "type": "json"
      }
    }
  }
}

curl "https://animica.dev/x402/v1/chat/completions"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://animica.dev/x402/v1/chat/completions");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://animica.dev/x402/v1/chat/completions")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header