← The evidence ledger
Evidence row 61090
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://agent-data-tools.revmesh2074.workers.dev/polygon/is-contract
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 9b8851e13c0a0525ee2a4aa5e7adfad17338f67136046d0d4bd1083d7c6b4276
- Leaf
- 0x21d3b787b8b75d2b60e4797e349da3022d3b69b33659e3b97f65eb696c1e6be8
What was observed
{
"endpoints": [
[
"x402",
"https://agent-data-tools.revmesh2074.workers.dev/polygon/is-contract"
]
],
"name": "Polygon PoS contract check",
"owner_address": "0x2074c40346ae2a90e0e4a391bcee6f16bf5277f5",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x2074C40346Ae2A90e0E4A391bceE6F16BF5277f5",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0x2074C40346Ae2A90e0E4A391bceE6F16BF5277f5",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0x2074C40346Ae2A90e0E4A391bceE6F16BF5277f5",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "82wfSCZhCmZA7zwqqt6Q3FG8nqYBwUvbThP6M97fa9Q6",
"scheme": "exact"
}
],
"description": "Check whether a 0x address on Polygon PoS is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before sending funds or approving a spender; for a fuller risk verdict use check_counterparty. A malformed address is rejected with 400, uncharged.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"address": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359"
},
"type": "http"
},
"output": {
"example": {
"address": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"chain": "Polygon PoS",
"chainId": 137,
"codeBytes": 1855,
"implementation": null,
"isContract": true,
"minimalProxy": false
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"address": {
"description": "0x address",
"examples": [
"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359"
],
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
}
},
"required": [
"address"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"address": {
"type": "string"
},
"chain": {
"type": "string"
},
"chainId": {
"type": "number"
},
"codeBytes": {
"type": "number"
},
"implementation": {},
"isContract": {
"type": "boolean"
},
"minimalProxy": {
"type": "boolean"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"builder-code": {
"info": {
"a": "bc_09e30bdm"
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"a": {
"description": "App builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"s": {
"description": "Service builder codes",
"items": {
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"maxItems": 11,
"type": "array"
},
"w": {
"description": "Wallet builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
}
},
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792567527/bazaar-icons/a67d2da18841a325.png",
"lastUpdated": "2026-10-22T18:40:49.906Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-22T18:40:49.722Z"
},
"resource": "https://agent-data-tools.revmesh2074.workers.dev/polygon/is-contract",
"serviceName": "Polygon PoS contract check",
"tags": [
"polygon",
"contract",
"security",
"address",
"blockchain"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Check whether a 0x address on Polygon PoS is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before sending funds or approving a spender; for a fuller risk verdict use check_counterparty. A malformed address is rejected with 400, uncharged."
}What the leaf hashes
{"body":"9b8851e13c0a0525ee2a4aa5e7adfad17338f67136046d0d4bd1083d7c6b4276","id":61090,"kind":"listing","method":"baseline/1","observed_us":1793025450102662,"prev":null,"subject":"x402_bazaar:https://agent-data-tools.revmesh2074.workers.dev/polygon/is-contract","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.