API · /schemamock-api

Schema Mock API

healthy 4,862 Subscribers

Generate realistic mock data from a JSON Schema. Send any JSON Schema and get back data that conforms to it — honouring types, formats (email, uuid, date-time, uri, ipv4 and more), minimum/maximum, string length and patterns, enums, required fields, and nested objects and arrays. Ask for a single object or an array of up to 100. Add a "faker" keyword on a property (e.g. "faker":"person.fullName" or "commerce.product") to get specific realistic values powered by Faker. Unlike fixed-entity fake-data generators, the shape is entirely driven by your schema — perfect for API mocking, test fixtures, database seeding, prototyping and contract testing. Pure local generation — no key, no third-party service, instant. Live. 2 endpoints. Distinct from JSON Schema validation and from canned mock-data entities.

#mock-data #json-schema #faker #testing #developer-tools #fixtures

api.oanor.com/schemamock-api

Get an API key Try in playground → Contact provider

Machine-readable spec so AI agents can integrate this API.

/api/schemamock-api/openapi.json

/api/schemamock-api/llms.txt

Discovery: GET /api/index.json lists every API.

Schema Mock API — live data on the oanor API marketplace

API health

healthy

Uptime: 100.00%; Server probes · 24h
Avg latency: 87 ms; Server probes · 24h
Subscribers: 4,862; active
Total calls: 38; last 7 days

Full status page → · 4 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

1,420 calls / month
2 requests / second
Hard cap (429 above quota, no overage)
1,420 calls/month
2 req/sec
Schema-driven, up to 100/req
No credit card

Starter

€6.00 /month

24,000 calls / month
8 requests / second
Hard cap (429 above quota, no overage)
24k calls/month
8 req/sec
Faker values + formats
Email support

Pro

€25.60 /month

174,000 calls / month
20 requests / second
Hard cap (429 above quota, no overage)
174k calls/month
20 req/sec
API mocking / fixtures
Priority support

Mega

€61.60 /month

890,000 calls / month
50 requests / second
Hard cap (429 above quota, no overage)
890k calls/month
50 req/sec
Platform scale
Dedicated SLA

Built by

PremiumApi

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api.oanor.com/jsontypes-api

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Generate realistic fake data — users, postal addresses, companies and products — for testing, prototyping, demos and database seeding. Localizable to many languages and regions for names, addresses and phone numbers. Server-side and deterministic to call, ideal for CI fixtures and frontend mock states.

api.oanor.com/mockdata-api

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api.oanor.com/tempmail-api

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api.oanor.com/proglang-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Schema Mock API?

Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Schema Mock API with the x-oanor-key header. No credit card needed for the free tier.

What's the rate limit for Schema Mock API?

Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.

How much does Schema Mock API cost?

Schema Mock API has a free tier with 100 calls / month. Paid plans start at €6.00 / month with higher quotas and faster rate limits.

Can I cancel my subscription anytime?

Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.

Is Schema Mock API GDPR-compliant?

All requests to Schema Mock API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Mock 1

Meta 1

Pick an endpoint from the list on the left to see its details and try it.

GET /v1/generate

Generate mock data from a JSON Schema

Playground

Parameters

Custom headers

Language: Client:

GET /v1/meta

Spec

Playground

Custom headers

Language: Client:

Code snippets

curl https://api.oanor.com/schemamock-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."

const res = await fetch("https://api.oanor.com/schemamock-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();

$ch = curl_init("https://api.oanor.com/schemamock-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);

import requests
r = requests.get(
    "https://api.oanor.com/schemamock-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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