Crypto Microdata for Agents

Recent payments · which agents last used it

Every indexed settlement paid to this service’s wallet, newest first. The index does not record which endpoint a payment was for, so if this wallet serves more than one endpoint, the rows include payments for the others. Paged up to the newest 5,000; the full history is on the merchant page.

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": "0xe4be4d0bd82d8e68203deff81f79ede0529f2617",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "gas_limit": 21000
        }
      },
      "output": {
        "type": "json",
        "example": {
          "block": 37000000,
          "chain": "base",
          "tiers": {
            "fast": {
              "est_cost_usd": 0.0007,
              "max_fee_gwei": 0.025,
              "max_priority_fee_gwei": 0.01
            },
            "slow": {
              "est_cost_usd": 0.0005,
              "max_fee_gwei": 0.006,
              "max_priority_fee_gwei": 0.001
            },
            "standard": {
              "est_cost_usd": 0.0005,
              "max_fee_gwei": 0.011,
              "max_priority_fee_gwei": 0.001
            }
          },
          "sources": [
            "https://mainnet.base.org"
          ],
          "chain_id": 8453,
          "tx_fields": {
            "gas": "0x5208",
            "type": "0x2",
            "maxFeePerGas": "0xa7d8c0",
            "maxPriorityFeePerGas": "0xf4240"
          },
          "congestion": 0.42,
          "updated_at": "2026-10-29T13:30:00Z",
          "base_fee_gwei": 0.005,
          "gas_price_gwei": 0.006,
          "recommended_tier": "standard",
          "gas_price_wei_hex": "0x5b8d80",
          "est_transfer_cost_eth": 1.26e-7,
          "max_priority_fee_gwei": 0.001,
          "max_priority_fee_wei_hex": "0xf4240"
        }
      }
    },
    "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"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {
                "gas_limit": {
                  "type": "integer",
                  "maximum": 30000000,
                  "minimum": 21000,
                  "examples": [
                    21000,
                    150000
                  ],
                  "description": "Gas units to price (default 21000)"
                }
              },
              "additionalProperties": false
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog

2026-10-29 13:20Z

Last indexed by Roundhouse

2026-11-14 09:45Z

Last enriched (probe, favicon, geo)

2026-10-29 06:16Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 402