Audit one Avro schema for what it makes impossible later
Audit one Avro schema for what it makes impossible later. Reports a field with no default, which cannot be removed without breaking readers; a nullable field with no default; a null default where null is not the first union branch, which is invalid; an enum with no default, which makes adding a symbol permanently breaking; an absent namespace on a top-level record; a logical type on a base the specification disallows; and a binary float on a monetary field name.
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/avro-schema-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 | $0.12 | 3816 ms |
Example input (from the provider)
{
"body": {
"require_documentation": true,
"schema": {
"fields": [
{
"name": "invoice_id",
"type": "string"
},
{
"name": "amount",
"type": "double"
},
{
"name": "issued_at",
"type": {
"logicalType": "timestamp-millis",
"type": "string"
}
},
{
"default": null,
"name": "memo",
"type": [
"string",
"null"
]
},
{
"name": "state",
"type": {
"name": "State",
"symbols": [
"DRAFT",
"SENT"
],
"type": "enum"
}
}
],
"name": "Invoice",
"type": "record"
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"require_documentation": {
"type": "boolean"
},
"schema": {
"type": [
"object",
"string"
]
}
},
"required": [
"schema"
],
"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"
}