Validate a JSON document against a JSON Schema (draft 2020-12) with precise erro
Validate a JSON document against a JSON Schema (draft 2020-12) with precise error paths — the exact check agents need before trusting structured output. Returns valid/invalid plus every violation with its JSON Pointer location and message. Use this when an agent needs to validate JSON against a draft 2020-12 schema.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
242 msmedian answer time
$0.003listed price per call
$0.003price 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
GET https://agentstoolshub.com/api/v1/dev/json-schema-validator
| Category | Code and developer |
|---|---|
| Provider host | agentstoolshub.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 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 | $0.003 | 242 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"data": "{\"id\": 42}",
"schema": "{\"type\":\"object\",\"required\":[\"id\"],\"properties\":{\"id\":{\"type\":\"number\"}}}"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"data": {
"description": "JSON data",
"type": "string"
},
"schema": {
"description": "JSON Schema",
"type": "string"
}
},
"required": [
"schema",
"data"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}