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Json Schema Infer
by JSON Schema infer in Documents & files
x402 APIPassing, checked 2 h ago
Infer a draft-07 JSON Schema from sample JSON document(s). Send one sample as json, or several as samples. Heuristic merge rules: required = keys present in every sample, conflicting types become a type union, integer widens to number, and string formats (date-time, date, email, uri, uuid) are detected from values. Complements json-validate.
POST https://agent402.tools/api/json-schema-infer
Last 30 days
All checks passedSome failedAll failedNot checked
- Uptime
- 100%
- Response time
- 193 ms typical, 193 ms slowest 5%
- Last check
- 2 h ago
- Next check
- any minute now
How to call it
# See the payment challenge (nothing is charged)
curl -i -X POST "https://agent402.tools/api/json-schema-infer" \
-H "content-type: application/json" \
-d '{"json":{"active":true,"age":36,"joined":"1843-10-18","name":"Ada","tags":["pioneer"]}}'import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";
const client = new x402Client().register(
"eip155:8453",
new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);
// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagent402.tools%2Fapi%2Fjson-schema-infer
const res = await pay("https://agent402.tools/api/json-schema-infer", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({"json":{"active":true,"age":36,"joined":"1843-10-18","name":"Ada","tags":["pioneer"]}}),
});
console.log(await res.json());Example input
{
"json": {
"active": true,
"age": 36,
"joined": "1843-10-18",
"name": "Ada",
"tags": [
"pioneer"
]
}
}Example output
{
"samples": 1,
"schema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"age": {
"type": "integer"
},
"name": {
"type": "string"
}
},
"required": [
"name",
"age"
],
"type": "object"
}
}Security scan
- No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.
Recent checks
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 2 h ago | Passed | 402 | 329 ms | $0.001 |
| 7 h ago | Passed | 402 | 193 ms | $0.001 |