Monitoring · x402 · early usage

x402.openwebninja.com/realtime-news-data/topic-headlines

No description provided.

by x402.openwebninja.com · discovered, not yet claimed by its owner · updated 2026-10-08

30d calls2

30d payers2

MethodGET

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

No description provided.

Tags: bazaar

Call contract

Method: GET
Input: query parameters
Output: json
Last paid call: 2026-10-08

Input example from Bazaar metadata

{
  "topic": "WORLD"
}

Output example

{}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/57051.json for the price and payment options.
Pay. Call GET https://x402.openwebninja.com/realtime-news-data/topic-headlines. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, Polygon, Arbitrum One, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.003 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base, Polygon, Arbitrum One
Demand: 2 calls · 2 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.003	0x3e7c9cA818f713F19e126E3B7B37B47dC1411570	300s
exact	Polygon eip155:137	USDC	$0.003	0x3e7c9cA818f713F19e126E3B7B37B47dC1411570	300s
exact	Arbitrum One eip155:42161	USDC	$0.003	0x3e7c9cA818f713F19e126E3B7B37B47dC1411570	300s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x3e7c9cA818f713F19e126E3B7B37B47dC1411570",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3000",
    "amountUsd": 0.003,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "payTo": "0x3e7c9cA818f713F19e126E3B7B37B47dC1411570",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "3000",
    "amountUsd": 0.003,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:42161",
    "payTo": "0x3e7c9cA818f713F19e126E3B7B37B47dC1411570",
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "amount": "3000",
    "amountUsd": 0.003,
    "maxTimeoutSeconds": 300
  }
]

Schemas

Output schema (JSON Schema)

{
  "properties": {
    "example": {
      "properties": {
        "data": {
          "description": "News article results for the requested topic.",
          "items": {
            "properties": {
              "authors": {
                "description": "Author names credited on the article.",
                "items": {
                  "description": "A single author name.",
                  "type": "string"
                },
                "nullable": true,
                "type": "array"
              },
              "link": {
                "description": "Canonical URL of the article.",
                "type": "string"
              },
              "photo_url": {
                "description": "URL of the article's lead image.",
                "nullable": true,
                "type": "string"
              },
              "published_datetime_utc": {
                "description": "ISO 8601 UTC datetime of original publication.",
                "nullable": true,
                "type": "string"
              },
              "related_topics": {
                "description": "Related Google News topics surfaced for the article.",
                "items": {
                  "properties": {
                    "topic_id": {
                      "description": "Google News topic ID.",
                      "type": "string"
                    },
                    "topic_name": {
                      "description": "Topic display name.",
                      "type": "string"
                    }
                  },
                  "required": [
                    "topic_id",
                    "topic_name"
                  ],
                  "type": "object"
                },
                "nullable": true,
                "type": "array"
              },
              "snippet": {
                "description": "Short excerpt of the article body.",
                "nullable": true,
                "type": "string"
              },
              "source_favicon_url": {
                "description": "URL of the source publisher's favicon.",
                "nullable": true,
                "type": "string"
              },
              "source_logo_url": {
                "description": "URL of the source publisher's logo.",
                "nullable": true,
                "type": "string"
              },
              "source_name": {
                "description": "Publisher name of the source.",
                "nullable": true,
                "type": "string"
              },
              "source_publication_id": {
                "description": "Google News publication ID of the source.",
                "nullable": true,
                "type": "string"
              },
              "source_url": {
                "description": "Homepage URL of the source publisher.",
                "nullable": true,
                "type": "string"
              },
              "sub_articles": {
                "description": "Related sub-articles that Google News groups with this headline.",
                "items": {
                  "properties": {
                    "link": {
                      "description": "Canonical URL of the sub-article.",
                      "type": "string"
                    },
                    "photo_url": {
                      "description": "URL of the sub-article's lead image.",
                      "nullable": true,
                      "type": "string"
                    },
                    "published_datetime_utc": {
                      "description": "ISO 8601 UTC datetime of the sub-article's publication.",
                      "nullable": true,
                      "type": "string"
                    },
                    "thumbnail_url": {
                      "description": "URL of the sub-article's thumbnail image.",
                      "nullable": true,
                      "type": "string"
                    },
                    "title": {
                      "description": "Headline of the sub-article.",
                      "type": "string"
                    }
                  },
                  "required": [
                    "title",
                    "link"
                  ],
                  "type": "object"
                },
                "nullable": true,
                "type": "array"
              },
              "thumbnail_url": {
                "description": "URL of the article's thumbnail image.",
                "nullable": true,
                "type": "string"
              },
              "title": {
                "description": "Headline of the news article.",
                "type": "string"
              }
            },
            "required": [
              "title",
              "link"
            ],
            "type": "object"
          },
          "type": "array"
        },
        "request_id": {
          "description": "A unique identifier for the request",
          "type": "string"
        },
        "status": {
          "description": "The status of the response",
          "type": "string"
        }
      },
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": {
    "data": [
      {
        "authors": [
          "string"
        ],
        "link": "string",
        "photo_url": "string",
        "published_datetime_utc": "string",
        "related_topics": [
          {
            "topic_id": "string",
            "topic_name": "string"
          }
        ],
        "snippet": "string",
        "source_favicon_url": "string",
        "source_logo_url": "string",
        "source_name": "string",
        "source_publication_id": "string",
        "source_url": "string",
        "sub_articles": [
          {
            "link": "string",
            "photo_url": "string",
            "published_datetime_utc": "string",
            "thumbnail_url": "string",
            "title": "string"
          }
        ],
        "thumbnail_url": "string",
        "title": "string"
      }
    ],
    "request_id": "string",
    "status": "string"
  },
  "type": "string"
}

Examples

curl

curl -X GET 'https://x402.openwebninja.com/realtime-news-data/topic-headlines'
# -> 402 Payment Required; read PAYMENT-REQUIRED
# retry the identical request with PAYMENT-SIGNATURE

JavaScript

const res = await fetch("https://x402.openwebninja.com/realtime-news-data/topic-headlines", {
  "method": "GET"
});
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.request("GET", "https://x402.openwebninja.com/realtime-news-data/topic-headlines")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: x402.openwebninja.com
Endpoint: https://x402.openwebninja.com/realtime-news-data/topic-headlines
Machine-readable: /resources/57051.json