addrbookFor publishers
← The evidence ledger

Evidence row 66127

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://api.eucompliance.tools/x402/token
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
b846af3aaee29f60ab3f5f46d34e95b73f12cae95f93f6cf624faf12ffb6e215
Leaf
0x23ba2aa055f3119e22e37f2f7993c52ecc5b85d6fc888cf920b7b7e8e7eda724

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.eucompliance.tools/x402/token"
    ]
  ],
  "name": "Token Allowance & Balance",
  "owner_address": "0x478bcdea94b9cb5ea14c33e6f0d7e920743d39f2",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x478bCdeA94b9CB5EA14C33e6f0d7E920743d39f2",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0x478bCdeA94b9CB5EA14C33e6f0d7E920743d39f2",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0x478bCdeA94b9CB5EA14C33e6f0d7E920743d39f2",
        "scheme": "exact"
      },
      {
        "amount": "2000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "9N5TAHbtp9s8Ksrcn4b9Kig4uTRnevZC13bSsMnMAQ4c",
        "scheme": "exact"
      }
    ],
    "description": "Pre-flight check before a swap or transfer: ERC-20 allowance, balance, decimals and symbol in one call, read live from the chain at the latest block. Pass an amount and get a straight would_succeed verdict with the blocking reason and the action needed. Base, Ethereum, Arbitrum, Optimism, Polygon. A missing approval burns the gas of a failed transaction - this call costs a fraction of that.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "amount": "25",
              "chain": "base",
              "owner": "0x0000000000000000000000000000000000000001",
              "spender": "0x0000000000000000000000000000000000000002",
              "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "amount": {
                      "anyOf": [
                        {
                          "type": "string"
                        },
                        {
                          "type": "number"
                        }
                      ],
                      "description": "Exact decimal string preferred; JSON number remains accepted for backwards compatibility. Optional; returns a would_succeed verdict."
                    },
                    "chain": {
                      "enum": [
                        "base",
                        "ethereum",
                        "arbitrum",
                        "optimism",
                        "polygon"
                      ],
                      "type": "string"
                    },
                    "owner": {
                      "description": "wallet holding the tokens",
                      "type": "string"
                    },
                    "spender": {
                      "description": "contract that would spend them, optional",
                      "type": "string"
                    },
                    "token": {
                      "description": "ERC-20 contract address",
                      "type": "string"
                    }
                  },
                  "required": [
                    "token",
                    "owner"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-25T09:59:53.458Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-25T09:59:52.701Z"
    },
    "resource": "https://api.eucompliance.tools/x402/token",
    "serviceName": "Token Allowance & Balance",
    "tags": [
      "token-balance",
      "erc20-balance",
      "erc20",
      "allowance",
      "wallet"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Pre-flight check before a swap or transfer: ERC-20 allowance, balance, decimals and symbol in one call, read live from the chain at the latest block. Pass an amount and get a straight would_succeed verdict with the blocking reason and the action needed. Base, Ethereum, Arbitrum, Optimism, Polygon. A missing approval burns the gas of a failed transaction - this call costs a fraction of that."
}

What the leaf hashes

{"body":"b846af3aaee29f60ab3f5f46d34e95b73f12cae95f93f6cf624faf12ffb6e215","id":66127,"kind":"listing","method":"baseline/1","observed_us":1793025459746099,"prev":null,"subject":"x402_bazaar:https://api.eucompliance.tools/x402/token","subject_kind":"source_record"}

Proof

Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.

How to check it · This row as JSON