uxus.finance

Live 402 challenge

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

{
  "error": "X-PAYMENT header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xE0Ed7A30589Fec49e98F2085c7162B90FdbB83de",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://uxus.finance/api/search",
      "description": "Live web search for AI agents — no API key, no account, no signup; pay per call in USDC on Base. GET ?q=YOUR+QUERY (required), count=N (1-20, default 10), country/language/page/device (optional). Returns { query, results: [{ title, url, description, score }], ads, people_also_ask, related_searches, knowledge_graph, answer_box, shopping, ai_overview, provider, latency_ms }. score is 1.0 for the top result descending toward 0.1. The structured blocks (ads/PAA/related/knowledge_graph/answer_box/shopping/ai_overview) are populated when the Google-backed provider answers; empty/null on fallback. For agents grounding an answer in current web data, comparison-shopping, or gathering source URLs to scrape.",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "q": "Search query. Required.",
            "page": "1-based result page. Optional.",
            "count": "Number of results, 1-20. Default 10.",
            "device": "Forwarded to the upstream provider if set. Not confirmed to change results on every provider. Optional.",
            "country": "2-letter country code (Google gl param). Optional.",
            "language": "2+ letter language code (Google hl param). Optional."
          },
          "discoverable": true
        },
        "output": {
          "type": "json",
          "example": {
            "ads": [],
            "query": "x402 payment protocol",
            "results": [
              {
                "url": "https://x402.org/",
                "score": 1,
                "title": "x402 — Payment Required",
                "description": "An open standard for paying for HTTP requests with stablecoins."
              }
            ],
            "provider": "duckduckgo",
            "shopping": [],
            "answer_box": null,
            "latency_ms": 480,
            "ai_overview": null,
            "knowledge_graph": null,
            "people_also_ask": [],
            "related_searches": [
              "x402 protocol coinbase",
              "http 402 payment required"
            ]
          }
        }
      },
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "x402Version": 1
}

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": "0xE0Ed7A30589Fec49e98F2085c7162B90FdbB83de",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://uxus.finance/api/search",
    "description": "Live web search results. $0.01 USDC per call on Base, no API key. GET ?q=... (required), count 1-20 (default 10), optional country, language, page. Returns results[{ title, url, description, score }]…",
    "maxAmountRequired": "10000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog

2026-10-30 21:18Z

Last indexed by Roundhouse

2026-11-07 06:45Z

Last enriched (probe, favicon, geo)

2026-09-29 22:46Z

x402 version

1

Max timeout

300s

Liveness probe

HTTP 402