Give a task and a budget; get the result, a measured verification signal, and an ML-DSA-65

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x5D17c40FD6b119dc6006C4Ab3C20a917FCaB2aCD",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "maxTimeoutSeconds": 60
  },
  {
    "scheme": "exact",
    "network": "animica:1",
    "payTo": "anim1zqpsmegc0qcvzjfukm89xs0zeu3eqyyyel7kelehuszvwfarqypky2gr946ga",
    "asset": "ANM",
    "amount": "237567310738",
    "maxTimeoutSeconds": 60
  }
]

{
  "animica": {
    "catalog": "https://animica.dev/.well-known/x402",
    "content_type": "application/json",
    "currency": "USDC",
    "description": "Give a task and a budget; get the result, a measured verification signal, and an ML-DSA-65 signed receipt over the exact bytes delivered. Routes the task to a capability and says which one ran: extract (fetch a URL and read it), research, predict (with the live prediction-market price where one matches), chain (Animica L1 facts), code, summarize, or a direct answer. HONEST ABOUT VERIFICATION: there is one inference backend today, so multi-sample checking measures SELF-CONSISTENCY, not independent providers — the response states provider_count, whether providers were distinct, and what the agreement number means. Confidence is measured from real agreement or reported as null; it is never a decorative number. The receipt is signed with the same post-quantum scheme this chain admits transactions with, the public key ships with it, and the result can optionally be anchored on-chain with a free permanent proof.",
    "documentation": "https://animica.dev/x402#product-execute",
    "name": "Animica Execute — pay once, get a verified result",
    "openapi": "https://animica.dev/x402/openapi.json",
    "price": "0.020000",
    "product": "execute",
    "provider": "Animica",
    "terms": {
      "amount_atomic": "20000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "chain_id": 8453,
      "network": "eip155:8453",
      "pay_to": "0x5D17c40FD6b119dc6006C4Ab3C20a917FCaB2aCD",
      "scheme": "exact"
    },
    "x402_version": 2
  },
  "bazaar": {
    "discoverable": true,
    "info": {
      "input": {
        "body": {
          "task": "extract the page title from https://example.com"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "properties": {
            "body": {
              "properties": {
                "anchor": {
                  "description": "anchor the result on-chain and return a free permanent proof (default false)",
                  "type": "boolean"
                },
                "quality": {
                  "description": "\"fast\" (1 pass, no verification) or \"verified\" (multiple samples + agreement). Default fast.",
                  "type": "string"
                },
                "task": {
                  "description": "what to do, in plain language. A URL in the task routes it to extraction.",
                  "type": "string"
                }
              },
              "required": [
                "task"
              ],
              "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": {
          "anchor": {
            "description": "anchor the result on-chain and return a free permanent proof (default false)",
            "required": false,
            "type": "boolean"
          },
          "quality": {
            "description": "\"fast\" (1 pass, no verification) or \"verified\" (multiple samples + agreement). Default fast.",
            "required": false,
            "type": "string"
          },
          "task": {
            "description": "what to do, in plain language. A URL in the task routes it to extraction.",
            "required": true,
            "type": "string"
          }
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "description": "status, capability, result, verification {provider_count, providers_distinct, samples, agreement, confidence, method, caveat}, receipt {alg, signature, public_key, preimage, verify}, anchor {commitment, verify_url} when requested, and elapsed_ms",
        "type": "json"
      }
    }
  }
}

curl "https://animica.dev/x402/execute"
# -> 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/execute");
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/execute")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header