Audit metric names, types and label sets
Audit metric names, types and label sets. The finding that needs the whole set: a metric appearing with different label sets, so a sum or average over it groups by whichever labels happen to be present, which is not the grouping anybody asked for. Also reports a counter without a total suffix, a gauge named like one, a sub-second unit where the convention is seconds, a label holding identifiers, which is unbounded cardinality by construction, and a label reserved for another metric type.
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/metric-naming-contract-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 | $0.14 | 7499 ms |
Example input (from the provider)
{
"body": {
"max_label_cardinality": 3,
"samples": [
{
"labels": {
"method": "GET",
"status": "200"
},
"name": "http_requests",
"type": "counter"
},
{
"labels": {
"method": "GET"
},
"name": "http_requests",
"type": "counter"
},
{
"labels": {
"queue": "orders"
},
"name": "queue_depth_total",
"type": "gauge"
},
{
"labels": {
"le": "0.5"
},
"name": "request_latency_milliseconds",
"type": "histogram"
},
{
"labels": {
"order_id": "8827341"
},
"name": "cache_hits_total",
"type": "counter"
},
{
"labels": {
"order_id": "8827342"
},
"name": "cache_hits_total",
"type": "counter"
},
{
"labels": {
"order_id": "8827343"
},
"name": "cache_hits_total",
"type": "counter"
},
{
"labels": {
"order_id": "8827344"
},
"name": "cache_hits_total",
"type": "counter"
},
{
"labels": {
"version": "1.4.0"
},
"name": "build_info",
"type": "gauge"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"max_label_cardinality": {
"minimum": 1,
"type": "integer"
},
"samples": {
"items": {
"additionalProperties": false,
"properties": {
"labels": {
"type": "object"
},
"name": {
"maxLength": 256,
"type": "string"
},
"type": {
"enum": [
"counter",
"gauge",
"histogram",
"summary",
"untyped"
],
"type": "string"
}
},
"required": [
"name"
],
"type": "object"
},
"maxItems": 20000,
"minItems": 1,
"type": "array"
}
},
"required": [
"samples"
],
"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"
}