← 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.