x402.agoragentic.com

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "note": "Paid execution requires POST /v1/{slug}; GET and HEAD return discovery challenges only.",
  "error": "payment_required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xadB33740Ac38c8F6721100Ff813ab91d958670BC",
      "amount": "10000",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://x402.agoragentic.com/v1/text/summarizer",
      "description": "Text Summarizer on Agoragentic x402 Edge",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "message": "x402 payment required to call Text Summarizer. Send 0.01 USDC and retry this stable resource URL.",
  "payment": {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "0.01",
    "network": "base",
    "protocol": "x402",
    "recipient": "0xadB33740Ac38c8F6721100Ff813ab91d958670BC",
    "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402",
    "atomic_amount": "10000",
    "timeout_seconds": 300,
    "challenge_dialect": "canonical_base",
    "settlement_network_caip2": "eip155:8453"
  },
  "metadata": {
    "name": "Text Summarizer",
    "slug": "text-summarizer",
    "trust": {
      "slug": "text-summarizer",
      "network": "eip155:8453",
      "abuse_risk": "low",
      "price_usdc": "0.01",
      "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402",
      "idempotency": {
        "mode": "durable_same_signed_payload_cache",
        "note": "Clients may include the official payment-identifier extension. The edge stores successful same-signed-payload retry responses in shared storage and keeps an in-process fallback cache if the store is unavailable.",
        "required": false,
        "extension": "payment-identifier",
        "cache_ttl_seconds": 3600
      },
      "payable_url": "https://x402.agoragentic.com/v1/text-summarizer",
      "seller_name": "Agoragentic",
      "seller_type": "first_party",
      "input_limits": {
        "text_chars": 20000,
        "max_sentences": 10
      },
      "metric_scope": "anonymous_x402_paid_settlements_only",
      "statefulness": "stateless",
      "paid_calls_7d": 1,
      "safe_to_retry": true,
      "seller_wallet": "0xadB33740Ac38c8F6721100Ff813ab91d958670BC",
      "max_runtime_ms": 30000,
      "p50_latency_ms": null,
      "p95_latency_ms": null,
      "paid_calls_30d": 7,
      "siwx_supported": false,
      "refund_rate_30d": 0,
      "success_rate_7d": 1,
      "settlement_pay_to": "0xadB33740Ac38c8F6721100Ff813ab91d958670BC",
      "side_effect_class": "read_only",
      "verification_tier": "verified",
      "paying_wallets_30d": 5,
      "repeat_wallets_30d": 2,
      "gross_volume_usdc_7d": 0.01,
      "seller_wallet_source": "platform_managed_settlement",
      "upgrade_required_for": "none",
      "idempotency_supported": true,
      "refund_rate_30d_basis": "credited_paid_failures_over_all_paid_calls_30d",
      "last_successful_paid_at": "2026-07-09T21:29:02.894Z",
      "credited_paid_failures_30d": 0,
      "anonymous_x402_total_calls_7d": 1
    },
    "method": "POST",
    "status": "available",
    "category": "ai-services",
    "buyer_page": "https://agoragentic.com/buyers/text-summarizer/?src=service_index",
    "price_usdc": "0.01",
    "description": "Summarize bounded text payloads into concise machine-readable output.",
    "edge_status": "stable_route_live",
    "payable_url": "https://x402.agoragentic.com/v1/text-summarizer",
    "input_schema": {
      "type": "object",
      "required": [
        "text"
      ],
      "properties": {
        "text": {
          "type": "string",
          "default": "Agents discover services, inspect schemas, and call only when the invocation contract is complete.",
          "maxLength": 100000,
          "minLength": 1
        },
        "format": {
          "enum": [
            "paragraph",
            "bullets"
          ],
          "type": "string",
          "default": "paragraph"
        },
        "max_sentences": {
          "type": "integer",
          "default": 5,
          "maximum": 20,
          "minimum": 1
        }
      },
      "additionalProperties": false
    },
    "sample_input": {
      "text": "Summarize this paragraph for an autonomous buyer.",
      "max_sentences": 3
    },
    "compatibility": {
      "note": "Compatibility only. The x402 edge public happy path is the stable /v1/{slug} URL and does not require listing UUID lookup.",
      "public_happy_path": "POST /v1/{slug}",
      "legacy_main_domain_route_available": true
    },
    "output_schema": {
      "type": "object",
      "required": [
        "success",
        "output"
      ],
      "properties": {
        "output": {
          "type": "object",
          "required": [
            "summary"
          ],
          "properties": {
            "format": {
              "enum": [
                "paragraph",
                "bullets"
              ],
              "type": "string",
              "default": "paragraph"
            },
            "method": {
              "enum": [
                "extractive",
                "truncation"
              ],
              "type": "string",
              "default": "extractive"
            },
            "summary": {
              "type": "string",
              "default": "Agents discover services and inspect schemas."
            },
            "sentence_count": {
              "type": "integer",
              "default": 1
            },
            "summary_length": {
              "type": "integer"
            },
            "original_length": {
              "type": "integer"
            },
            "compression_ratio": {
              "type": "string"
            },
            "processing_time_ms": {
              "type": "integer"
            }
          }
        },
        "success": {
          "type": "boolean",
          "default": true
        }
      }
    },
    "route_aliases": [],
    "status_reason": null,
    "canonical_slug": "text-summarizer",
    "payment_contract": {
      "protocol": "x402",
      "extensions": {
        "payment_identifier": {
          "mode": "durable_same_signed_payload_cache",
          "required": false,
          "advertised": true
        }
      },
      "retry_headers": [
        "PAYMENT-SIGNATURE",
        "X-PAYMENT-SIGNATURE",
        "Authorization: Payment"
      ],
      "unpaid_status": 402,
      "success_headers": [
        "PAYMENT-RESPONSE",
        "Payment-Receipt"
      ],
      "account_required": false,
      "challenge_headers": [
        "PAYMENT-REQUIRED",
        "WWW-Authenticate"
      ],
      "listing_id_lookup_required": false
    },
    "execution_contract": {
      "stable_route": "POST /v1/text-summarizer",
      "safe_to_retry": true,
      "max_runtime_ms": 30000,
      "retry_idempotency": "payment-identifier extension is optional and durable-cached for same signed payload retries",
      "request_content_type": "application/json",
      "response_content_type": "application/json"
    },
    "canonical_payable_url": "https://x402.agoragentic.com/v1/text-summarizer",
    "alternate_payable_urls": []
  },
  "resource": {
    "url": "https://x402.agoragentic.com/v1/text/summarizer",
    "mimeType": "application/json",
    "description": "Text Summarizer on Agoragentic x402 Edge"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "text": "Summarize this paragraph for an autonomous buyer.",
            "max_sentences": 3
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "text"
                ],
                "properties": {
                  "text": {
                    "type": "string",
                    "default": "Agents discover services, inspect schemas, and call only when the invocation contract is complete.",
                    "maxLength": 100000,
                    "minLength": 1
                  },
                  "format": {
                    "enum": [
                      "paragraph",
                      "bullets"
                    ],
                    "type": "string",
                    "default": "paragraph"
                  },
                  "max_sentences": {
                    "type": "integer",
                    "default": 5,
                    "maximum": 20,
                    "minimum": 1
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          }
        }
      },
      "input_schema": {
        "type": "object",
        "required": [
          "text"
        ],
        "properties": {
          "text": {
            "type": "string",
            "default": "Agents discover services, inspect schemas, and call only when the invocation contract is complete.",
            "maxLength": 100000,
            "minLength": 1
          },
          "format": {
            "enum": [
              "paragraph",
              "bullets"
            ],
            "type": "string",
            "default": "paragraph"
          },
          "max_sentences": {
            "type": "integer",
            "default": 5,
            "maximum": 20,
            "minimum": 1
          }
        },
        "additionalProperties": false
      },
      "service_slug": "text-summarizer",
      "statefulness": "stateless",
      "output_schema": {
        "type": "object",
        "required": [
          "success",
          "output"
        ],
        "properties": {
          "output": {
            "type": "object",
            "required": [
              "summary"
            ],
            "properties": {
              "format": {
                "enum": [
                  "paragraph",
                  "bullets"
                ],
                "type": "string",
                "default": "paragraph"
              },
              "method": {
                "enum": [
                  "extractive",
                  "truncation"
                ],
                "type": "string",
                "default": "extractive"
              },
              "summary": {
                "type": "string",
                "default": "Agents discover services and inspect schemas."
              },
              "sentence_count": {
                "type": "integer",
                "default": 1
              },
              "summary_length": {
                "type": "integer"
              },
              "original_length": {
                "type": "integer"
              },
              "compression_ratio": {
                "type": "string"
              },
              "processing_time_ms": {
                "type": "integer"
              }
            }
          },
          "success": {
            "type": "boolean",
            "default": true
          }
        }
      },
      "safe_to_retry": true,
      "stable_resource": true,
      "side_effect_class": "read_only"
    },
    "agoragentic": {
      "info": {
        "slug": "text-summarizer",
        "surface": "x402_edge",
        "price_usdc": 0.01,
        "edge_status": "stable_route_live",
        "marketplace": "Agoragentic",
        "statefulness": "stateless",
        "safe_to_retry": true,
        "stable_resource": true,
        "side_effect_class": "read_only",
        "discovery_visibility": "x402_edge"
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "marketplace",
          "surface",
          "stable_resource",
          "slug",
          "edge_status",
          "discovery_visibility",
          "price_usdc",
          "safe_to_retry",
          "statefulness",
          "side_effect_class"
        ],
        "properties": {
          "slug": {
            "type": "string"
          },
          "surface": {
            "type": "string"
          },
          "price_usdc": {
            "type": "number",
            "minimum": 0
          },
          "edge_status": {
            "type": "string"
          },
          "marketplace": {
            "type": "string"
          },
          "statefulness": {
            "type": "string"
          },
          "safe_to_retry": {
            "type": "boolean"
          },
          "stable_resource": {
            "type": "boolean"
          },
          "side_effect_class": {
            "type": "string"
          },
          "discovery_visibility": {
            "type": "string"
          }
        },
        "additionalProperties": true
      }
    },
    "payment-identifier": {
      "info": {
        "required": false
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "required"
        ],
        "properties": {
          "id": {
            "type": "string",
            "pattern": "^[a-zA-Z0-9_-]+$",
            "maxLength": 128,
            "minLength": 16
          },
          "required": {
            "type": "boolean"
          }
        }
      }
    }
  },
  "price_usdc": 0.01,
  "x402Version": 2,
  "exact_request": {
    "url": "https://x402.agoragentic.com/v1/text/summarizer",
    "body": {
      "text": "Summarize this paragraph for an autonomous buyer.",
      "max_sentences": 3
    },
    "method": "POST",
    "headers": {
      "Content-Type": "application/json"
    },
    "payment_header": "PAYMENT-SIGNATURE: <base64-signed-payment-payload>"
  },
  "buyer_instructions": {
    "sdk": {
      "raw_http": "# 1. Get the 402 challenge:\ncurl -i -X POST https://x402.agoragentic.com/v1/text/summarizer \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"text\":\"Summarize this paragraph for an autonomous buyer.\",\"max_sentences\":3}'\n\n# 2. Sign the challenge with your wallet/x402 client, then retry:\ncurl -X POST https://x402.agoragentic.com/v1/text/summarizer \\\n  -H \"Content-Type: application/json\" \\\n  -H \"PAYMENT-SIGNATURE: <signed-payment-payload>\" \\\n  -d '{\"text\":\"Summarize this paragraph for an autonomous buyer.\",\"max_sentences\":3}'",
      "official_x402_fetch": {
        "code": "import { wrapFetchWithPayment } from \"x402-fetch\";\nimport { createWalletClient, http } from \"viem\";\nimport { base } from \"viem/chains\";\n\nconst account = await loadServerSideEvmSigner(); // Your wallet/HSM/managed-wallet signer.\nconst walletClient = createWalletClient({ account, chain: base, transport: http() });\n\nconst fetchWithPayment = wrapFetchWithPayment(fetch, walletClient);\nconst response = await fetchWithPayment(\"https://x402.agoragentic.com/v1/text/summarizer\", {\n  method: \"POST\",\n  headers: { \"Content-Type\": \"application/json\" },\n  body: JSON.stringify({\"text\":\"Summarize this paragraph for an autonomous buyer.\",\"max_sentences\":3}),\n});\n\nconsole.log(await response.json());",
        "docs": "https://docs.x402.org/getting-started/quickstart-for-buyers",
        "note": "Server-side only: provide a funded Base USDC wallet signer from your wallet, HSM, or managed-wallet runtime. Do not expose raw keys in browser code or send them to Agoragentic.",
        "install": "npm install x402-fetch viem",
        "package": "x402-fetch"
      },
      "official_x402_python": {
        "code": "import asyncio\nfrom x402 import x402Client\nfrom x402.http.clients import x402HttpxClient\nfrom x402.mechanisms.evm import EthAccountSigner\nfrom x402.mechanisms.evm.exact.register import register_exact_evm_client\n\nasync def load_server_side_evm_signer():\n    # Return your wallet/HSM/managed-wallet signer. Do not send raw keys to Agoragentic.\n    raise NotImplementedError\n\nasync def main():\n    client = x402Client()\n    signer = await load_server_side_evm_signer()\n    register_exact_evm_client(client, EthAccountSigner(signer))\n\n    async with x402HttpxClient(client) as http:\n        response = await http.post(\"https://x402.agoragentic.com/v1/text/summarizer\", json={\"text\":\"Summarize this paragraph for an autonomous buyer.\",\"max_sentences\":3})\n        print(response.text)\n\nasyncio.run(main())",
        "docs": "https://docs.x402.org/getting-started/quickstart-for-buyers",
        "note": "Server-side only: provide a funded Base USDC signer from your wallet, HSM, or managed-wallet runtime.",
        "install": "pip install \"x402[httpx]\" eth_account",
        "package": "x402[httpx]"
      },
      "ows_cli_or_signing_primitives": {
        "cli": "ows pay request --help",
        "docs": "https://github.com/open-wallet-standard/core",
        "note": "OWS v1.3.x documents wallet/signing primitives and the `ows pay request` CLI. It does not export a JavaScript payRequest helper; use the official_x402_fetch example for programmatic JavaScript.",
        "install": "npm install -g @open-wallet-standard/core",
        "package": "@open-wallet-standard/core"
      }
    },
    "docs": "https://x402.agoragentic.com/docs",
    "steps": [
      "Receive this 402 response and read the PAYMENT-REQUIRED header or JSON body.",
      "Ask your wallet or x402 client to sign the payment requirement for https://x402.agoragentic.com/v1/text/summarizer.",
      "Retry POST https://x402.agoragentic.com/v1/text/summarizer with PAYMENT-SIGNATURE: <signed-payment-payload>.",
      "Read the 200 response body plus PAYMENT-RESPONSE and Payment-Receipt headers."
    ],
    "summary": "To complete this payment, have a wallet-aware x402 client sign this PAYMENT-REQUIRED challenge with a funded Base USDC wallet, then retry this exact URL with the signed payment payload.",
    "security": {
      "guidance": "Keep private keys inside your wallet, signer, HSM, or managed-wallet runtime. Agoragentic only needs the signed payment payload on retry.",
      "never_send_private_keys": true
    },
    "buyer_page": "https://agoragentic.com/buyers/text-summarizer/?src=challenge_body",
    "retry_headers": {
      "preferred": "PAYMENT-SIGNATURE",
      "alternatives": [
        "X-PAYMENT-SIGNATURE",
        "Authorization: Payment <payload>"
      ]
    }
  },
  "receipt_expectation": {
    "on_success": "HTTP 200 with Payment-Receipt header containing the settlement proof.",
    "verification": "GET https://x402.agoragentic.com/v1/receipts/{receipt_id} returns the full receipt for audit.",
    "receipt_format": "Base64-encoded JSON with fields: receipt_id, amount, asset, network, settled_at.",
    "receipt_header": "Payment-Receipt",
    "reconciliation": "POST https://x402.agoragentic.com/v1/receipt-reconciliation with declared_intent + receipt to verify alignment."
  },
  "common_failure_hints": [
    {
      "fix": "Re-read the PAYMENT-REQUIRED header from the most recent 402, sign it fresh, retry immediately.",
      "cause": "Signed payment payload did not match the challenge. Regenerate from the latest 402 body.",
      "symptom": "HTTP 402 loops (sign + retry → 402 again)"
    },
    {
      "fix": "GET https://x402.agoragentic.com/v1/text-summarizer/schema for the exact JSON shape. Payment is never charged for invalid input.",
      "cause": "Request body does not satisfy the input_schema.",
      "symptom": "HTTP 400 invalid_input"
    },
    {
      "fix": "Cache the 402 challenge body, sign it client-side, and retry with PAYMENT-SIGNATURE. Do not request a new challenge each time.",
      "cause": "Too many unpaid 402 challenges from this IP.",
      "symptom": "HTTP 429 rate limited"
    },
    {
      "fix": "Retry the same signed payment; the idempotency layer prevents double-charge.",
      "cause": "Upstream provider took too long.",
      "symptom": "HTTP 504 timeout"
    },
    {
      "fix": "Only paid 200 responses carry Payment-Receipt. Check status code first.",
      "cause": "Response was a non-paid path (free, or pre-payment error).",
      "symptom": "Missing Payment-Receipt header"
    }
  ]
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xadB33740Ac38c8F6721100Ff813ab91d958670BC",
    "amount": "100000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "text": "Summarize this paragraph for an autonomous buyer.",
          "max_sentences": 3
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "text"
              ],
              "properties": {
                "text": {
                  "type": "string",
                  "maxLength": 20000,
                  "minLength": 1
                },
                "max_sentences": {
                  "type": "integer",
                  "maximum": 10,
                  "minimum": 1
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        }
      }
    },
    "input_schema": {
      "type": "object",
      "required": [
        "text"
      ],
      "properties": {
        "text": {
          "type": "string",
          "maxLength": 20000,
          "minLength": 1
        },
        "max_sentences": {
          "type": "integer",
          "maximum": 10,
          "minimum": 1
        }
      }
    },
    "service_slug": "text-summarizer",
    "statefulness": "stateless",
    "output_schema": {
      "type": "object",
      "properties": {
        "bullets": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "summary": {
          "type": "string"
        }
      }
    },
    "safe_to_retry": true,
    "stable_resource": true,
    "side_effect_class": "read_only"
  },
  "agoragentic": {
    "info": {
      "slug": "text-summarizer",
      "surface": "x402_edge",
      "price_usdc": 0.1,
      "edge_status": "stable_route_live",
      "marketplace": "Agoragentic",
      "statefulness": "stateless",
      "safe_to_retry": true,
      "stable_resource": true,
      "side_effect_class": "read_only",
      "discovery_visibility": "x402_edge"
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "marketplace",
        "surface",
        "stable_resource",
        "slug",
        "edge_status",
        "discovery_visibility",
        "price_usdc",
        "safe_to_retry",
        "statefulness",
        "side_effect_class"
      ],
      "properties": {
        "slug": {
          "type": "string"
        },
        "surface": {
          "type": "string"
        },
        "price_usdc": {
          "type": "number",
          "minimum": 0
        },
        "edge_status": {
          "type": "string"
        },
        "marketplace": {
          "type": "string"
        },
        "statefulness": {
          "type": "string"
        },
        "safe_to_retry": {
          "type": "boolean"
        },
        "stable_resource": {
          "type": "boolean"
        },
        "side_effect_class": {
          "type": "string"
        },
        "discovery_visibility": {
          "type": "string"
        }
      },
      "additionalProperties": true
    }
  },
  "payment-identifier": {
    "info": {
      "required": false
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "required"
      ],
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^[a-zA-Z0-9_-]+$",
          "maxLength": 128,
          "minLength": 16
        },
        "required": {
          "type": "boolean"
        }
      }
    }
  }
}

Provenance

Seen in the source catalog

2026-06-05 23:37Z

Last indexed by Roundhouse

2026-07-02 14:30Z

Last enriched (probe, favicon, geo)

2026-09-20 15:45Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 503