Audit a lookup table against its contract
Audit a lookup table against its contract. The finding that matters most: one source mapping to several targets, because a lookup built from it is not a function and whichever row is read last wins. Also reports required sources that are unmapped, so anything carrying them falls through, targets outside the permitted set, and - when a one-to-one mapping is declared - a target reached from several sources.
Answers HTTP 429 without x402 payment termsour last check, 2026-10-04
0 of 1checks answered this week
n/amedian answer time
$0.12listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.zfinia.com/x402/v1/mapping-contract-audit
| Category | Code and developer |
|---|---|
| Provider host | api.zfinia.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-04 | no x402 terms | 429 | 253 ms |
Example input (from the provider)
{
"body": {
"csv": "country,region\nAU,APAC\nNZ,APAC\nGB,EMEA\nGB,UK\nIE,\nUS,AMER\n",
"expect_injective": true,
"permitted_targets": [
"APAC",
"EMEA",
"AMER",
"LATAM"
],
"required_sources": [
"AU",
"NZ",
"GB",
"US",
"FR"
],
"source_column": "country",
"target_column": "region"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"csv": {
"maxLength": 262144,
"type": "string"
},
"delimiter": {
"maxLength": 1,
"minLength": 1,
"type": "string"
},
"expect_injective": {
"type": "boolean"
},
"permitted_targets": {
"items": {
"maxLength": 256,
"type": "string"
},
"maxItems": 1000,
"minItems": 1,
"type": "array"
},
"required_sources": {
"items": {
"maxLength": 256,
"type": "string"
},
"maxItems": 1000,
"minItems": 1,
"type": "array"
},
"source_column": {
"maxLength": 256,
"type": "string"
},
"target_column": {
"maxLength": 256,
"type": "string"
}
},
"required": [
"csv",
"source_column",
"target_column"
],
"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"
}