Infer a JSON Schema from a sample JSON document
Infer a JSON Schema from a sample JSON document - types, nested objects and arrays, required fields and string formats like email, date, uri and uuid
Answers HTTP 404 without x402 payment termsour last check, 2026-10-18
0 of 1checks answered this week
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Endpoint
GET https://saylorinnovations.com/api/dev/json-schema
| Category | Code and developer |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| 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 |
|---|---|---|---|---|
| 2026-10-18 | no x402 terms | 404 | 225 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"json": "{\"id\":7,\"name\":\"Ada\",\"email\":\"ada@example.com\",\"joined\":\"2026-01-05\",\"tags\":[\"a\",\"b\"],\"score\":9.5,\"active\":true}"
},
"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",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"queryParams": {
"properties": {
"json": {
"description": "URL-encoded sample JSON document (up to 6000 characters)",
"type": "string"
}
},
"required": [
"json"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"fields": {
"type": "array"
},
"note": {
"description": "Caveat or context for reading the result",
"type": "string"
},
"root_type": {
"description": "Root type",
"type": "string"
},
"schema": {
"type": "object"
},
"schema_nodes": {
"description": "Schema nodes",
"type": "number"
},
"source": {
"description": "Data source the values come from",
"type": "string"
}
},
"required": [
"root_type",
"schema",
"fields"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}