Check that payment allocations are arithmetically consistent with the invoices a
Check that payment allocations are arithmetically consistent with the invoices and payments they refer to. An over-allocated invoice and an over-allocated payment are reported separately because they are different events: money applied beyond what was owed, and money applied that was never received. Also reports an unallocated remainder, an allocation to a cancelled invoice, and a cross-currency allocation, which converts at a rate the data does not state.
Answeringour last check, 2026-10-04
1 of 1checks answered this week
4994 msmedian answer time
$0.18listed price per call
$0.18price 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://api.zfinia.com/x402/v1/payment-allocation-audit
| Category | Code and developer |
|---|---|
| Provider host | api.zfinia.com |
| 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
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-04 | valid payment request | 402 | $0.18 | 4994 ms |
Example input (from the provider)
{
"body": {
"allocations": [
{
"amount": "500.01",
"invoice": "INV-1",
"payment": "PAY-1"
},
{
"amount": "50.00",
"invoice": "INV-2",
"payment": "PAY-1"
},
{
"amount": "100.00",
"invoice": "INV-3",
"payment": "PAY-2"
},
{
"amount": "0",
"invoice": "INV-9",
"payment": "PAY-2"
}
],
"invoices": [
{
"amount": "500.00",
"currency": "AUD",
"id": "INV-1"
},
{
"amount": "250.00",
"currency": "AUD",
"id": "INV-2"
},
{
"amount": "100.00",
"currency": "USD",
"id": "INV-3",
"status": "cancelled"
}
],
"payments": [
{
"amount": "600.00",
"currency": "AUD",
"id": "PAY-1"
},
{
"amount": "100.00",
"currency": "AUD",
"id": "PAY-2"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"allocations": {
"items": {
"additionalProperties": false,
"properties": {
"amount": {
"type": [
"string",
"number"
]
},
"invoice": {
"maxLength": 128,
"type": "string"
},
"payment": {
"maxLength": 128,
"type": "string"
}
},
"required": [
"payment",
"invoice",
"amount"
],
"type": "object"
},
"maxItems": 20000,
"minItems": 1,
"type": "array"
},
"invoices": {
"items": {
"additionalProperties": false,
"properties": {
"amount": {
"type": [
"string",
"number"
]
},
"currency": {
"maxLength": 8,
"type": "string"
},
"id": {
"maxLength": 128,
"type": "string"
},
"status": {
"maxLength": 32,
"type": "string"
}
},
"required": [
"id",
"amount"
],
"type": "object"
},
"maxItems": 20000,
"minItems": 1,
"type": "array"
},
"payments": {
"items": {
"additionalProperties": false,
"properties": {
"amount": {
"type": [
"string",
"number"
]
},
"currency": {
"maxLength": 8,
"type": "string"
},
"id": {
"maxLength": 128,
"type": "string"
},
"received_on": {
"maxLength": 32,
"type": "string"
}
},
"required": [
"id",
"amount"
],
"type": "object"
},
"maxItems": 20000,
"minItems": 1,
"type": "array"
}
},
"required": [
"invoices",
"payments",
"allocations"
],
"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": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}