ManyLives JSON Schema Validator

x402

ManyLives JSON Schema Validator is a paid API for AI agents from api.manylives.me, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-10).

Validates a JSON value against a provided JSON Schema object and returns a list of validation issues with paths and problem descriptions

Price / call$0.002

Seller volume →—

Success—

StatusUnknown

How this service works

Pay-per-call tools for people building AI agents: live web search and page contents, point-in-time crypto market data and news for backtests (no lookahead), verifiable track records of 1,000 crypto strategies locked on the Base network, company profiles, quick AI and batch prices. Ask us to turn a public website into a JSON endpoint. Pay per call, no account, free trial.

Output

A JSON object containing a boolean 'valid' field, an array of 'issues' each with a JSONPath 'path' and a human-readable 'problem' description, and an integer 'issue_count' indicating total violations found.

Example use cases

API request body pre-flight check

“Before I send this payload to the payment API, validate it against the schema — data is {"amount":"100","currency":"USD"} and the schema requires amount to be a number and currency to be a string with enum values USD, EUR, GBP.”

Catching missing required fields in user form data

“I collected this form submission {"name":"Alice"} but my schema requires name, email, and age as an integer — can you validate it and list every missing or wrong field?”

LLM output conformance check

“My language model returned this JSON {"confidence":"high","label":3} but my schema says confidence must be a number between 0 and 1 and label must be a string — validate it and tell me what's wrong.”

Technical details

Endpoint

POSThttps://api.manylives.me/paid/json/validate?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a pay-per-call, no-account JSON Schema validation service that returns structured, path-level error details — especially useful for AI agents needing programmatic validation of LLM outputs, API payloads, or user-submitted data without standing up a validation library. Prefer it over general-purpose code execution when you want a lightweight, auditable, single-purpose validation call in an agentic pipeline.

Side effects

Malformed or non-parseable JSON in the 'data' field causes a parsing error response
Invalid or non-parseable JSON Schema in the 'schema' field returns an error
Missing required 'data' or 'schema' parameters results in a 400-level error
Payment not included or insufficient USDC causes a 402 Payment Required response

Input

Schema · Request body

Field	Type	Description
data	string	the JSON value to check (required)
schema	string	the JSON Schema object (required)

Output

Schema · Response

{
  "type": "json",
  "example": {
    "valid": false,
    "issues": [
      {
        "path": "$.age",
        "problem": "expected integer, got string"
      },
      {
        "path": "$.email",
        "problem": "required property is missing"
      }
    ],
    "issue_count": 2
  }
}

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