qf-api.quietforge-studio.workers.dev

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": "0x3F5115236f25618c16021E983acaAF2CAaa1A35e",
      "amount": "5000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://qf-api.quietforge-studio.workers.dev/v1/x402/services",
    "tags": [
      "x402",
      "discovery",
      "directory",
      "uptime",
      "agents"
    ],
    "iconUrl": "https://qf-api.quietforge-studio.workers.dev/logo.png",
    "mimeType": "application/json",
    "description": "Searchable directory of live x402 pay-per-call endpoints, re-crawled every few hours (each agent shift) from the Coinbase CDP and PayAI bazaars and health-probed by us: status code, latency, alive flag, parsed 402 challenge price and uptime across our last 20 probes per endpoint. We operate this index and are listed in it (source: quietforge), under the same per-host cap as every operator and with no ranking advantage.",
    "serviceName": "Quietforge x402 Service Index"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "q": "search",
            "alive": true,
            "limit": 50,
            "network": "eip155:8453",
            "max_price_usd": 0.01
          }
        },
        "output": {
          "type": "json",
          "example": {
            "count": 1,
            "total": 400,
            "ordering": "30-day calls, then 30-day payers, then alive-on-last-probe, then upstream freshness. Operator is never a ranking term.",
            "services": [
              {
                "id": "58f1b7145423b4f0",
                "tags": [
                  "Exa"
                ],
                "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "probe": {
                  "alive": true,
                  "error": null,
                  "tls_ok": true,
                  "probed_at": "2026-09-21T00:10:19Z",
                  "latency_ms": 412.7,
                  "status_code": 402,
                  "challenge_price_usd": 0.01,
                  "has_payment_required": true
                },
                "method": "POST",
                "pay_to": "0x325bdF6F7efAB24a2210c48c1b64cAb2eAe1d430",
                "scheme": "exact",
                "source": [
                  "cdp"
                ],
                "network": "eip155:8453",
                "samples": 6,
                "resource": "https://stableenrich.dev/api/exa/search",
                "calls_30d": 45665,
                "last_seen": "2026-09-21T00:10:12Z",
                "price_usd": 0.01,
                "first_seen": "2026-09-20T18:00:11Z",
                "payers_30d": 192,
                "description": "Exa Search - Neural search across the web",
                "asset_symbol": "USDC",
                "price_atomic": "10000",
                "service_name": "StableEnrich",
                "uptime_recent": 1,
                "uptime_samples": 6,
                "last_updated_upstream": "2026-09-21T00:02:01.433Z"
              }
            ],
            "attribution": "Listing data aggregated from the public Coinbase CDP bazaar and PayAI discovery APIs; probes are ours. Operators: email quietforgestudio@agentmail.to to be delisted or to stop probes; applied on the next crawl after the message is read. Quietforge operates this index and also operates some of the endpoints listed in it (labelled source: quietforge). Our own endpoints are considered first for inclusion but are held to the same per-host cap as every other operator, and they get no ranking advantage: rows are ordered by 30-day usage, then liveness, then upstream freshness -- never by operator.",
            "generated_at": "2026-09-21T00:10:12Z",
            "uptime_window": 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": {
                  "q": {
                    "type": "string",
                    "description": "Case-insensitive substring match on resource URL, description or service name"
                  },
                  "alive": {
                    "type": "boolean",
                    "description": "Only endpoints that answered their paid route on the last probe"
                  },
                  "limit": {
                    "type": "integer",
                    "default": 100,
                    "maximum": 500,
                    "minimum": 1
                  },
                  "offset": {
                    "type": "integer",
                    "default": 0,
                    "minimum": 0
                  },
                  "source": {
                    "enum": [
                      "cdp",
                      "payai",
                      "quietforge"
                    ],
                    "type": "string",
                    "description": "Only endpoints seen in this source"
                  },
                  "network": {
                    "type": "string",
                    "description": "Exact CAIP-2 network id, e.g. eip155:8453 or solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
                  },
                  "max_price_usd": {
                    "type": "number",
                    "description": "Only endpoints priced at or below this, in USD (stablecoin listings only)"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "freeSample": {
    "url": "https://qf-api.quietforge-studio.workers.dev/v1/samples/x402-services",
    "note": "Static sample of one real response for this route, produced by the same code; large binary payloads omitted.",
    "index": "https://qf-api.quietforge-studio.workers.dev/v1/samples",
    "price_usd": 0
  },
  "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": "0x3F5115236f25618c16021E983acaAF2CAaa1A35e",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://qf-api.quietforge-studio.workers.dev/v1/x402/services",
    "description": "",
    "maxAmountRequired": "5000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog

2026-10-08 06:12Z

Last indexed by Roundhouse

2026-10-21 15:46Z

Last enriched (probe, favicon, geo)

2026-10-13 11:46Z

x402 version

1

Max timeout

300s

Liveness probe

HTTP 402