Validate JSON data payloads against schema definitions
Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
41 msmedian answer time
$0.005listed price per call
$0.005price 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://hcrb.in/v1/tools/instant-json-schema-verifier/call
| Category | Everything else |
|---|---|
| Provider host | hcrb.in |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.005 | 41 ms |
Example input (from the provider)
{
"body": {
"input": {
"data": {
"name": "Apex Agent",
"version": 2
},
"schema": {
"properties": {
"name": {
"type": "string"
},
"version": {
"type": "number"
}
},
"required": [
"name",
"version"
]
}
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"input": {
"properties": {
"data": {
"description": "The JSON data object to validate against the schema.",
"type": "object"
},
"schema": {
"description": "The JSON schema object with expected properties and types.",
"type": "object"
}
},
"required": [
"data",
"schema"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"errors": {
"type": "array"
},
"execution_ms": {
"type": "number"
},
"valid": {
"type": "boolean"
}
},
"required": [
"valid",
"errors",
"execution_ms"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}