Crypto Prices (Chainlink)

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": "0x54ebFCF3870439B9db62381848c5DabC05c70d5B",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "to": "Target asset symbol (in registry).",
          "from": "Source asset symbol (in registry).",
          "amount": "Amount of `from` to convert (default 1)."
        }
      },
      "output": {
        "type": "object",
        "required": [
          "from",
          "to",
          "amount",
          "result",
          "rate",
          "legs",
          "source"
        ],
        "properties": {
          "to": {
            "type": "string"
          },
          "from": {
            "type": "string"
          },
          "legs": {
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "pair": {
                  "type": "string"
                },
                "chain": {
                  "type": "string"
                },
                "price": {
                  "type": "string"
                },
                "stale": {
                  "type": "boolean"
                },
                "feed_address": {
                  "type": "string"
                },
                "staleness_seconds": {
                  "type": "integer"
                }
              }
            }
          },
          "rate": {
            "type": "string",
            "description": "Cross rate: from_usd / to_usd."
          },
          "amount": {
            "type": "string"
          },
          "result": {
            "type": "string",
            "description": "amount * (from_usd / to_usd)."
          },
          "source": {
            "enum": [
              "chainlink"
            ],
            "type": "string"
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object"
        },
        "output": {
          "type": "object"
        }
      }
    },
    "category": "market-data",
    "routeTemplate": "https://x402.professorsausages.com/prices/convert"
  },
  "sample": {
    "url": "https://x402.professorsausages.com/prices/sample",
    "hint": "A real cached response from this API (with its capture timestamp), free — judge the data quality before paying."
  },
  "catalog": {
    "message": "This endpoint is 1 of 29 pay-per-call APIs for agents — all same x402 payment + auth. Browse the full menu free (no payment) at the catalog URL; every API serves a free real sample record at /<api>/sample.",
    "strategy": "minimal",
    "catalogUrl": "https://x402.professorsausages.com/?ref=402&v=minimal&from=prices"
  },
  "suggest": {
    "url": "https://x402.professorsausages.com/suggest",
    "hint": "Missing data you'd pay for? POST {want, would_pay_usd} — free. The most-requested datasets get built first."
  },
  "discount": {
    "off": "50%",
    "hint": "Send X-Intent: <40+ chars describing what you're building and what data you need> for 50% off this call.",
    "header": "X-Intent"
  }
}

Provenance

Seen in the source catalog

2026-07-21 02:30Z

Last indexed by Roundhouse

2026-07-23 06:10Z

Last enriched (probe, favicon, geo)

2026-09-10 12:15Z

x402 version

2

Max timeout

60s

Liveness probe

HTTP 400