Market headlines from public RSS

Live 402 challenge

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

{
  "error": "payment_required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x6f60659390aDA1D02B14024d8c9d0C889f2F89c3",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://x402-catalog-history.ai-business-surface.workers.dev/news",
      "description": "Market headlines from public RSS in one GET: title, URL, publication time and source, newest first, with nothing older than 48 hours. curl: GET /news?topic=markets&limit=20 (topic markets|crypto|tech|world, default markets; limit 1-50, default 20). Response: {\"topic\":\"markets\",\"count\":20,\"freshness\":{\"max_age_hours\":48,\"newest_published_at\":\"2026-10-16T20:36:00.000Z\",\"oldest_published_at\":\"2026-10-16T02:12:00.000Z\",\"fetched_at\":\"2026-10-16T20:41:07.000Z\",\"items_within_window\":94,\"dropped_older_than_window\":12,\"dropped_undated\":0},\"items\":[{\"title\":\"Stocks close at a record as earnings beat\",\"url\":\"https://…\",\"published_at\":\"2026-10-16T20:30:00.000Z\",\"source\":\"MarketWatch\",\"age_minutes\":11}],\"sources\":[{\"source\":\"BBC Business\",\"feed_url\":\"…\",\"ok\":true,\"http_status\":200,\"items_in_window\":28,\"latency_ms\":180}]}. The five market feeds are read in parallel at the moment of the call, each with a 6 second cutoff, and every item carries the time its feed published it, so the age of each headline is visible. 0.005 USDC, no account, no key, one GET, one delivery. A purchase is two calls by design: this first call returns 402 with the price and the payment terms, and you then repeat the same request with the PAYMENT-SIGNATURE header to receive the 200 delivery.",
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 60
    }
  ],
  "receive": {
    "note": "One payment buys one delivery. The amount in this 402 is the current price; nothing is paid until you sign.",
    "step_1": "pay accepts[0] (0.005 USDC on Base, eip155:8453) with any x402 client; the client keeps the transaction hash",
    "step_2": "send the same request again with the PAYMENT-SIGNATURE header — the 200 body that comes back is the delivery, and it carries your tx and payer under delivery.payment so you can match it on chain. An x402 client library does this second call for you.",
    "free_preview": null,
    "what_you_get": "one delivery of /news: the 200 response body, returned by the request that carries your payment (nothing is delivered by the 402 itself)",
    "free_catalogue": "https://x402-catalog-history.ai-business-surface.workers.dev/",
    "free_preview_note": "This route has no separate free sample; the catalogue at / states its exact input, output and price before you pay.",
    "if_you_do_not_resend": {
      "human_route": "https://x402-catalog-history.ai-business-surface.workers.dev/preflight/buy and https://x402-catalog-history.ai-business-surface.workers.dev/ja/services are the operator's human-facing pages: the same measurements can be bought with a plain USDC transfer and a claim, with no x402 client at all.",
      "delivery_record": "https://x402-catalog-history.ai-business-surface.workers.dev/delivery-receipt?format=json (free) explains the record that matches one settled payment to one delivery, and the track record on https://x402-catalog-history.ai-business-surface.workers.dev/ (free) lists the totals (orders, amount, per product) of the deliveries this service recorded, and no buyer identifier is published — so a settled payment can be checked against a delivery by tx or payer instead of by guessing from the clock."
    }
  },
  "resource": {
    "url": "https://x402-catalog-history.ai-business-surface.workers.dev/news",
    "tags": [
      "news",
      "headlines",
      "rss",
      "market-news",
      "fresh"
    ],
    "mimeType": "application/json",
    "description": "Market headlines from public RSS in one GET: title, URL, publication time and source, newest first, with nothing older than 48 hours. curl: GET /news?topic=markets&limit=20 (topic markets|crypto|tech|world, default markets; limit 1-50, default 20). Response: {\"topic\":\"markets\",\"count\":20,\"freshness\":{\"max_age_hours\":48,\"newest_published_at\":\"2026-10-16T20:36:00.000Z\",\"oldest_published_at\":\"2026-10-16T02:12:00.000Z\",\"fetched_at\":\"2026-10-16T20:41:07.000Z\",\"items_within_window\":94,\"dropped_older_than_window\":12,\"dropped_undated\":0},\"items\":[{\"title\":\"Stocks close at a record as earnings beat\",\"url\":\"https://…\",\"published_at\":\"2026-10-16T20:30:00.000Z\",\"source\":\"MarketWatch\",\"age_minutes\":11}],\"sources\":[{\"source\":\"BBC Business\",\"feed_url\":\"…\",\"ok\":true,\"http_status\":200,\"items_in_window\":28,\"latency_ms\":180}]}. The five market feeds are read in parallel at the moment of the call, each with a 6 second cutoff, and every item carries the time its feed published it, so the age of each headline is visible. 0.005 USDC, no account, no key, one GET, one delivery. A purchase is two calls by design: this first call returns 402 with the price and the payment terms, and you then repeat the same request with the PAYMENT-SIGNATURE header to receive the 200 delivery.",
    "serviceName": "Market headlines from public RSS"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "limit": "20",
            "topic": "markets"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "count": 2,
            "items": [
              {
                "url": "https://example.com/markets/story",
                "title": "Stocks close at a record as earnings beat",
                "source": "MarketWatch",
                "age_minutes": 11,
                "published_at": "2026-10-16T20:30:00.000Z"
              }
            ],
            "topic": "markets",
            "sources": [
              {
                "ok": true,
                "source": "BBC Business",
                "feed_url": "https://feeds.bbci.co.uk/news/business/rss.xml",
                "latency_ms": 180,
                "http_status": 200,
                "items_in_window": 28
              }
            ],
            "freshness": {
              "fetched_at": "2026-10-16T20:41:07.000Z",
              "max_age_hours": 48,
              "dropped_undated": 0,
              "items_within_window": 94,
              "newest_published_at": "2026-10-16T20:36:00.000Z",
              "oldest_published_at": "2026-10-16T02:12:00.000Z",
              "dropped_older_than_window": 12
            },
            "product_id": "x402-news-headlines",
            "schema_version": 1,
            "requested_limit": 20
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {
                  "limit": {
                    "type": "string"
                  },
                  "topic": {
                    "type": "string"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 1,
  "payment_required_v2": {
    "error": "payment_required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x6f60659390aDA1D02B14024d8c9d0C889f2F89c3",
        "amount": "5000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://x402-catalog-history.ai-business-surface.workers.dev/news",
      "tags": [
        "news",
        "headlines",
        "rss",
        "market-news",
        "fresh"
      ],
      "mimeType": "application/json",
      "description": "Market headlines from public RSS in one GET: title, URL, publication time and source, newest first, with nothing older than 48 hours. curl: GET /news?topic=markets&limit=20 (topic markets|crypto|tech|world, default markets; limit 1-50, default 20). Response: {\"topic\":\"markets\",\"count\":20,\"freshness\":{\"max_age_hours\":48,\"newest_published_at\":\"2026-10-16T20:36:00.000Z\",\"oldest_published_at\":\"2026-10-16T02:12:00.000Z\",\"fetched_at\":\"2026-10-16T20:41:07.000Z\",\"items_within_window\":94,\"dropped_older_than_window\":12,\"dropped_undated\":0},\"items\":[{\"title\":\"Stocks close at a record as earnings beat\",\"url\":\"https://…\",\"published_at\":\"2026-10-16T20:30:00.000Z\",\"source\":\"MarketWatch\",\"age_minutes\":11}],\"sources\":[{\"source\":\"BBC Business\",\"feed_url\":\"…\",\"ok\":true,\"http_status\":200,\"items_in_window\":28,\"latency_ms\":180}]}. The five market feeds are read in parallel at the moment of the call, each with a 6 second cutoff, and every item carries the time its feed published it, so the age of each headline is visible. 0.005 USDC, no account, no key, one GET, one delivery. A purchase is two calls by design: this first call returns 402 with the price and the payment terms, and you then repeat the same request with the PAYMENT-SIGNATURE header to receive the 200 delivery.",
      "serviceName": "Market headlines from public RSS"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "limit": "20",
              "topic": "markets"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "count": 2,
              "items": [
                {
                  "url": "https://example.com/markets/story",
                  "title": "Stocks close at a record as earnings beat",
                  "source": "MarketWatch",
                  "age_minutes": 11,
                  "published_at": "2026-10-16T20:30:00.000Z"
                }
              ],
              "topic": "markets",
              "sources": [
                {
                  "ok": true,
                  "source": "BBC Business",
                  "feed_url": "https://feeds.bbci.co.uk/news/business/rss.xml",
                  "latency_ms": 180,
                  "http_status": 200,
                  "items_in_window": 28
                }
              ],
              "freshness": {
                "fetched_at": "2026-10-16T20:41:07.000Z",
                "max_age_hours": 48,
                "dropped_undated": 0,
                "items_within_window": 94,
                "newest_published_at": "2026-10-16T20:36:00.000Z",
                "oldest_published_at": "2026-10-16T02:12:00.000Z",
                "dropped_older_than_window": 12
              },
              "product_id": "x402-news-headlines",
              "schema_version": 1,
              "requested_limit": 20
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "properties": {
                    "limit": {
                      "type": "string"
                    },
                    "topic": {
                      "type": "string"
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
}

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": "0x6f60659390aDA1D02B14024d8c9d0C889f2F89c3",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "limit": "20",
          "topic": "markets"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "count": 2,
          "items": [
            {
              "url": "https://example.com/markets/story",
              "title": "Stocks close at a record as earnings beat",
              "source": "MarketWatch",
              "age_minutes": 11,
              "published_at": "2026-10-16T20:30:00.000Z"
            }
          ],
          "topic": "markets",
          "sources": [
            {
              "ok": true,
              "source": "BBC Business",
              "feed_url": "https://feeds.bbci.co.uk/news/business/rss.xml",
              "latency_ms": 180,
              "http_status": 200,
              "items_in_window": 28
            }
          ],
          "freshness": {
            "fetched_at": "2026-10-16T20:41:07.000Z",
            "max_age_hours": 48,
            "dropped_undated": 0,
            "items_within_window": 94,
            "newest_published_at": "2026-10-16T20:36:00.000Z",
            "oldest_published_at": "2026-10-16T02:12:00.000Z",
            "dropped_older_than_window": 12
          },
          "product_id": "x402-news-headlines",
          "schema_version": 1,
          "requested_limit": 20
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {
                "limit": {
                  "type": "string"
                },
                "topic": {
                  "type": "string"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog

2026-10-16 11:43Z

Last indexed by Roundhouse

2026-10-23 06:15Z

Last enriched (probe, favicon, geo)

2026-10-16 12:45Z

x402 version

2

Max timeout

60s

Liveness probe

HTTP 402