{
  "x402Version": 2,
  "id": 12593,
  "slug": "12593",
  "resource": "https://chain.openverbs.com/v1/btc-fees",
  "description": "Live recommended Bitcoin transaction fee rates (in sat/vB) for next-block, ~30-minute, ~1-hour, economy and minimum confirmation targets, straight from the mempool. Also estimates the total fee (in sats and BTC) for a transaction of the given virtual size, so an agent can pick a fee tier and know the cost before broadcasting.",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "6000",
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "txvBytes": 140
          },
          "bodyType": "json",
          "method": "POST",
          "type": "http"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "additionalProperties": false,
                "properties": {
                  "txvBytes": {
                    "default": 140,
                    "description": "Virtual size of the transaction in vbytes, used to estimate the total fee at each tier. Defaults to 140 (a typical 1-in/2-out native-segwit spend).",
                    "maximum": 1000000,
                    "minimum": 1,
                    "type": "integer"
                  }
                },
                "type": "object"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "chain.openverbs.com",
  "lastUpdated": "2026-09-06T08:18:51.888Z",
  "quality": {
    "calls30d": 5,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-09-06T08:18:51.734Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "chain.openverbs.com",
    "manifest_name": "chain.openverbs.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}