# FiatDock JSON Schema Validator

> FiatDock JSON Schema Validator is a paid API for AI agents from fiatdock.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-28).

Validates a JSON payload or schema document against a JSON Schema draft (2020-12 or similar) and returns validation results

## Facts

- Endpoint: GET https://fiatdock.com/s/svc_dad44fa0-017c-4f9b-80bb-ba1e7cba7ae9?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fiatdock-json-schema-validator-7de3e2ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ieXES-VDpjb2P5wWL-nIs

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability fiatdock-json-schema-validator-7de3e2ed
```

Example prompt: Can you validate this JSON object against my schema to check if it's valid? The data is {"name": "Alice", "age": 30} and the schema requires name to be a string and age to be a positive integer.

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call JSON Schema validation without managing a dedicated validation library or service. Ideal for agents that sporadically need schema checks as part of a pipeline, API contract testing, or data quality gates, without the overhead of a persistent validator service.

## Known failure modes

- Missing required 'input' body causes argument error billed as a call
- Malformed JSON in body returns parse error
- Schema draft version mismatch causes unexpected validation failures
- Tool name or params not matching the seller's MCP shape returns argument error
- Network timeout returns no validation result but call may still be billed

## How this service works

Pay-per-call: JSON Schema validator

## Output

Returns a structured JSON object indicating whether the input document passes or fails the provided schema, including a list of specific validation errors with paths and messages for each failed constraint.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "schema",
      "data"
     ],
     "properties": {
      "data": {
       "type": "string"
      },
      "schema": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fiatdock-json-schema-validator-7de3e2ed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fiatdock.com](https://www.zero.xyz/host/fiatdock.com/llms.txt)