Validate up to ten JSON documents against JSON Schema draft-07 or 2020-12
Validate up to ten JSON documents against JSON Schema draft-07 or 2020-12. Returns per-document validity and actionable errors with instance paths. Runs isolated with bounded time and memory; no remote schema loading or automatic data modification.
Answeringour last check, 2026-10-10
1 of 1checks answered this week
1527 msmedian answer time
$0.02listed price per call
$0.02price 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://contract-api-production-c176.up.railway.app/v1/contracts/validate
| Category | Code and developer |
|---|---|
| Provider host | contract-api-production-c176.up.railway.app |
| 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 |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.02 | 1527 ms |
Example input (from the provider)
{
"body": {
"documents": [
{
"email": "avery@example.com",
"quantity": 3
},
{
"email": "invalid-email",
"quantity": 0
}
],
"schema": {
"additionalProperties": false,
"properties": {
"email": {
"format": "email",
"type": "string"
},
"quantity": {
"minimum": 1,
"type": "integer"
}
},
"required": [
"email",
"quantity"
],
"type": "object"
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"documents": {
"items": {},
"maxItems": 10,
"minItems": 1,
"type": "array"
},
"draft": {
"default": "2020-12",
"enum": [
"2020-12",
"draft-07"
],
"type": "string"
},
"schema": {
"anyOf": [
{
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
},
{
"type": "boolean"
}
]
}
},
"required": [
"schema",
"documents"
],
"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"
}
},
"required": [
"input"
],
"type": "object"
}