Verify a Base mainnet USDC payment by tx hash
Verify a Base mainnet USDC payment by tx hash: confirmations, real-USDC transfers, expectedPayTo/expectedAmount match, fake-USDC and lookalike-address warnings, and who funded the payer (external | self_funded | unknown), plus a plain-English summary. Body: {txHash, expectedPayTo?, expectedAmount?}. Free demo: POST /demo. Docs: /openapi.json.
Not tested: has real-world effectsour last check, 2026-10-11
0 of 0checks answered this week
n/amedian answer time
$0.01listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://paycheck.hectichustle.workers.dev/check
| Category | Everything else |
|---|---|
| Provider host | paycheck.hectichustle.workers.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {
"expectedAmount": "1",
"expectedPayTo": "0x509E55c4F898B43C856Fb0E51048B1b7bFBC9eDE",
"txHash": "0xc37cbdfa44230f05129348d5160254abf354791d79de68228b201ba09de143c1"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"expectedAmount": {
"description": "Expected USDC amount, decimal (e.g. \"0.01\")",
"type": [
"string",
"number"
]
},
"expectedPayTo": {
"description": "Expected recipient (full-address, case-insensitive compare)",
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"selfAddresses": {
"description": "Optional: other addresses you control; funding from them counts as self_funded",
"items": {
"type": "string"
},
"maxItems": 10,
"type": "array"
},
"txHash": {
"description": "Base mainnet transaction hash",
"pattern": "^0x[0-9a-fA-F]{64}$",
"type": "string"
}
},
"required": [
"txHash"
],
"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"
},
"output": {
"properties": {
"example": {
"properties": {
"block": {
"type": [
"integer",
"null"
]
},
"confirmations": {
"type": "integer"
},
"confirmed": {
"type": "boolean"
},
"found": {
"type": "boolean"
},
"funding": {
"properties": {
"payeeFundedPayer": {
"type": "boolean"
},
"topFunders": {
"type": "array"
},
"verdict": {
"enum": [
"external",
"self_funded",
"unknown"
],
"type": "string"
}
},
"type": [
"object",
"null"
]
},
"match": {
"properties": {
"amountMatch": {
"type": [
"boolean",
"null"
]
},
"ok": {
"type": "boolean"
},
"payToMatch": {
"type": [
"boolean",
"null"
]
}
},
"type": [
"object",
"null"
]
},
"payment": {
"properties": {
"amount": {
"type": "string"
},
"from": {
"type": "string"
},
"to": {
"type": "string"
}
},
"type": [
"object",
"null"
]
},
"status": {
"type": [
"string",
"null"
]
},
"summary": {
"type": "string"
},
"timestamp": {
"type": [
"string",
"null"
]
},
"usdcTransfers": {
"items": {
"properties": {
"amount": {
"type": "string"
},
"from": {
"type": "string"
},
"to": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"warnings": {
"items": {
"properties": {
"code": {
"enum": [
"fake_token",
"lookalike_address",
"tx_reverted",
"no_usdc_transfer"
],
"type": "string"
},
"message": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
}
},
"required": [
"found",
"summary"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}