Hacker News Search

Full-text search over Hacker News stories and comments with normalized hits and direct links.

Public directory alias: https://x402.agoragentic.com/v1/hacker-news-search. Both routes resolve to canonical service hn-search.

Sample request

curl -X POST https://x402.agoragentic.com/v1/hn-search \
  -H "Content-Type: application/json" \
  -d '{"query":"agents","hits_per_page":5}'

Unpaid calls return HTTP 402 with PAYMENT-REQUIRED. Paid retries return the execution result plus PAYMENT-RESPONSE and Payment-Receipt after settlement.

Trust fields

{
  "slug": "hn-search",
  "payable_url": "https://x402.agoragentic.com/v1/hn-search",
  "price_usdc": null,
  "network": "eip155:8453",
  "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402",
  "seller_name": null,
  "seller_wallet": null,
  "seller_wallet_source": "not_public_or_unset",
  "settlement_pay_to": "0xadB33740Ac38c8F6721100Ff813ab91d958670BC",
  "seller_type": null,
  "verification_tier": "reachable",
  "side_effect_class": "read_only",
  "statefulness": "stateless",
  "safe_to_retry": true,
  "idempotency_supported": true,
  "idempotency": {
    "extension": "payment-identifier",
    "required": false,
    "mode": "durable_same_signed_payload_cache",
    "cache_ttl_seconds": 3600,
    "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."
  },
  "metric_scope": "anonymous_x402_paid_settlements_only",
  "input_limits": {
    "query_chars": 256,
    "hits_per_page": 50
  },
  "max_runtime_ms": 30000,
  "p50_latency_ms": null,
  "p95_latency_ms": null,
  "success_rate_7d": null,
  "paid_calls_7d": 0,
  "anonymous_x402_total_calls_7d": 0,
  "paying_wallets_30d": 0,
  "repeat_wallets_30d": 0,
  "gross_volume_usdc_7d": 0,
  "last_successful_paid_at": null,
  "refund_rate_30d": null,
  "refund_rate_30d_basis": "credited_paid_failures_over_all_paid_calls_30d",
  "credited_paid_failures_30d": 0,
  "paid_calls_30d": 0,
  "abuse_risk": "low",
  "siwx_supported": false,
  "upgrade_required_for": "none"
}

Schema

{
  "input_schema": {
    "type": "object",
    "required": [
      "query"
    ],
    "properties": {
      "query": {
        "type": "string",
        "minLength": 1,
        "maxLength": 256
      },
      "tags": {
        "type": "string",
        "enum": [
          "story",
          "comment",
          "poll",
          "show_hn",
          "ask_hn",
          "front_page"
        ]
      },
      "sort": {
        "type": "string",
        "enum": [
          "relevance",
          "date"
        ]
      },
      "hits_per_page": {
        "type": "integer",
        "minimum": 1,
        "maximum": 50
      },
      "page": {
        "type": "integer",
        "minimum": 0,
        "maximum": 50
      }
    }
  },
  "output_schema": {
    "type": "object",
    "properties": {
      "hits": {
        "type": "array",
        "items": {
          "type": "object"
        }
      },
      "hit_count": {
        "type": "integer"
      },
      "total_hits": {
        "type": "integer"
      }
    }
  }
}