Measure an error budget against real counts, with exact decimal arithmetic rathe
Measure an error budget against real counts, with exact decimal arithmetic rather than floating point. Reports the budget exhausted or mostly consumed, the objective not met, and a burn rate per interval above the sustainable one. A budget that rounds to fewer than one event is reported as carrying no information, since any failure is then a breach. Intervals are sorted by start, so the order supplied does not change the answer.
Answeringour last check, 2026-10-04
1 of 1checks answered this week
5500 msmedian answer time
$0.22listed price per call
$0.22price 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/error-budget-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 | $0.22 | 5500 ms |
Example input (from the provider)
{
"body": {
"intervals": [
{
"good": 7000,
"start": "2026-09-07T00:00:00Z",
"total": 7000
},
{
"good": 6965,
"start": "2026-09-14T00:00:00Z",
"total": 7000
},
{
"good": 6997,
"start": "2026-09-21T00:00:00Z",
"total": 7000
},
{
"good": 6998,
"start": "2026-09-28T00:00:00Z",
"total": 7000
}
],
"objective": "99.9",
"window_days": 28
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"intervals": {
"items": {
"additionalProperties": false,
"properties": {
"good": {
"minimum": 0,
"type": "integer"
},
"start": {
"type": [
"string",
"number"
]
},
"total": {
"minimum": 0,
"type": "integer"
}
},
"required": [
"start",
"good",
"total"
],
"type": "object"
},
"maxItems": 10000,
"minItems": 1,
"type": "array"
},
"objective": {
"type": [
"string",
"number"
]
},
"window_days": {
"maximum": 365,
"minimum": 1,
"type": "integer"
}
},
"required": [
"objective",
"window_days",
"intervals"
],
"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"
}