Check that detail rows add up to the totals a summary declares, group by group
Check that detail rows add up to the totals a summary declares, group by group. Sums are computed exactly on the decimal text, never through floating point: a float sum of 0.10 and 0.20 is 0.30000000000000004, so a tool built on one reports a false mismatch on the group that actually balances. Reports mismatches with the exact difference, groups with detail and no declared total, and totals with no detail at all.
Answeringour last check, 2026-10-04
1 of 1checks answered this week
2488 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/aggregate-reconciliation
| Category | Everything else |
|---|---|
| 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 | $0.18 | 2488 ms |
Example input (from the provider)
{
"body": {
"detail": "region,amount\na,0.10\na,0.20\nb,5.00\nb,5.00\nc,1.00\n",
"detail_amount": "amount",
"group_by": [
"region"
],
"summary": "region,total\na,0.30\nb,10.01\nd,9.00\n",
"summary_amount": "total",
"tolerance": "0"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"delimiter": {
"maxLength": 1,
"minLength": 1,
"type": "string"
},
"detail": {
"maxLength": 262144,
"type": "string"
},
"detail_amount": {
"maxLength": 256,
"type": "string"
},
"group_by": {
"items": {
"maxLength": 256,
"type": "string"
},
"maxItems": 4,
"minItems": 1,
"type": "array"
},
"summary": {
"maxLength": 262144,
"type": "string"
},
"summary_amount": {
"maxLength": 256,
"type": "string"
},
"tolerance": {}
},
"required": [
"detail",
"summary",
"group_by",
"detail_amount",
"summary_amount"
],
"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"
}