Schema Aware Data Generation MockHero API

API ID 12276

Enhance your data generation with MockHero's Schema Aware Data Generation API, ensuring data integrity and relevance.

100% uptime 93 ms avg response

MockHero generates realistic, schema-aware synthetic test data via API. Define any database schema — tables, columns, relationships — and get back fake but realistic rows.

## What you can generate
Names, emails, addresses, phone numbers, products, transactions, invoices, blog posts, and 50+ field types.

## Key features
- **Schema-aware**: define tables with foreign key relationships
- **50+ built-in field types**: uuid, email, phone, address, price, avatar_url, and more
- **AI prompt-to-schema**: describe what you need in plain English
- **Pre-built templates**: e-commerce, CRM, blog, SaaS, and more
- **Multiple output formats**: JSON, SQL INSERT, CSV
- **Deterministic seeds**: reproducible data for CI/CD
- **MCP server**: works with Cursor, Claude Code, Windsurf

## Use cases
- Seed dev/staging databases
- Populate CI/CD test fixtures
- Load test with realistic data
- Demo environments
- QA testing

API Documentation

Endpoints

Request

Check API status and uptime. Returns status, version, and timestamp.

Endpoint ID: 23043
GET https://pr213-testing.zylalabs.com/api/12276/schema+aware+data+generation+mockhero+api/23043/health+check
INPUT PARAMETERS

Free test requests remaining: 3 of 3.

This endpoint does not require any input parameters.

API EXAMPLE RESPONSE
JSON
{"status":"ok","version":"0.1.0","timestamp":"2026-04-02T03:49:14.586Z"}
Health Check — CODE SNIPPETS

curl --location --request GET 'https://pr213-testing.zylalabs.com/api/12276/schema+aware+data+generation+mockhero+api/23043/health+check' --header 'Authorization: Bearer YOUR_API_KEY' 


    

API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Schema Aware Data Generation MockHero API simply include your bearer token in the Authorization header.

Headers
Header Description
Authorization Required Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

Simple Transparent Pricing

No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.

🚀 Enterprise Plan
Custom Volume

  • Custom Rate Limit
  • Team & Access Management
  • SLA-backed Uptime
  • Specialized Customer Support
  • Real-Time API Monitoring
  • Enterprise Security & Compliance
Minimum annual contract: USD 10,000

Trusted by leading companies

Schema Aware Data Generation MockHero API FAQs

The Generate Test Data endpoint returns realistic synthetic data based on the defined schema. This includes various fields such as names, emails, addresses, and more, structured according to the specified tables and relationships.

The response data is organized in a JSON format, with each table represented as a key containing an array of objects. Each object corresponds to a row of generated data, with fields matching the schema definition.

Users can customize their data requests by specifying parameters such as table definitions, column types, row counts, and relationships between tables in the request body.

The List Field Types endpoint provides a comprehensive list of over 50 built-in field types available for data generation, including uuid, email, phone, address, and price.

Users can utilize the returned data by selecting a pre-built schema template that matches their use case, such as e-commerce or CRM, to quickly generate relevant test data without needing to define the schema from scratch.

The MockHero API generates synthetic data based on predefined schemas and templates, ensuring that the data is realistic and relevant for testing purposes, rather than sourced from real-world datasets.

Typical use cases include seeding development and staging databases, populating CI/CD test fixtures, loading test environments with realistic data, and conducting QA testing to ensure application functionality.

Data accuracy is maintained through schema awareness, which ensures that generated data adheres to defined relationships and constraints, along with the use of deterministic seeds for reproducibility in testing scenarios.

General FAQs

To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.

You can’t switch APIs during the free trial. If you subscribe to a different API, your trial will end and the new subscription will start as a paid plan.

The free trial lasts for 7 days and allows you to make up to 50 API requests.

No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.

Yes. If the API offers a free trial, you will see a "Free 7-Day Trial" option in its Pricing section. The trial lasts for 7 days and allows up to 50 API requests, enabling you to evaluate the API before subscribing to a paid plan.

Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.

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The local currency shown on the pricing page is based on the country of your IP address and is provided for reference only. The actual prices are in USD (United States Dollar). When you make a payment, the charge will appear on your card statement in USD, even if you see the equivalent amount in your local currency on our website. This means you cannot pay directly with your local currency.
Occasionally, a bank may decline the charge due to its fraud protection settings. We suggest reaching out to your bank initially to check if they are blocking our charges. Also, you can access the Billing Portal and change the card associated to make the payment. If these does not work and you need further assistance, please contact our team at [email protected]
Prices are determined by a recurring monthly or yearly subscription, depending on the chosen plan.
API calls are deducted from your plan based on successful requests. Each plan comes with a specific number of calls that you can make per month. Only successful calls, indicated by a Status 200 response, will be counted against your total. This ensures that failed or incomplete requests do not impact your monthly quota.
Zyla API Hub works on a recurring monthly subscription system. Your billing cycle will start the day you purchase one of the paid plans, and it will renew the same day of the next month. So be aware to cancel your subscription beforehand if you want to avoid future charges.
To upgrade your current subscription plan, simply go to the pricing page of the API and select the plan you want to upgrade to. The upgrade will be instant, allowing you to immediately enjoy the features of the new plan. Please note that any remaining calls from your previous plan will not be carried over to the new plan, so be aware of this when upgrading. You will be charged the full amount of the new plan.
To check how many API calls you have left for the current month, refer to the 'X-Zyla-API-Calls-Monthly-Remaining' field in the response header. For example, if your plan allows 1,000 requests per month and you've used 100, this field in the response header will indicate 900 remaining calls.

You can monitor your API usage through the response headers included with every request:

x-zyla-api-calls-monthly-used: Shows the total number of API requests you have used during the current billing period.
x-zyla-api-calls-monthly-remaining: Shows the number of API requests you have remaining for the current billing period.

The 'X-Zyla-RateLimit-Reset' header shows the number of seconds until your rate limit resets. This tells you when your request count will start fresh. For example, if it displays 3,600, it means 3,600 seconds are left until the limit resets.

Yes, you can cancel your subscription at any time. Simply go to the Pricing section of the API you're subscribed to and click the "Unsubscribe" button.

Please note that upgrades, downgrades, and cancellations take effect immediately. Once your subscription is canceled, access to the service will end immediately, regardless of any remaining API calls in your quota.

After 7 days, you will be charged the full amount for the plan you were subscribed to during the trial. Therefore, it's important to cancel before the trial period ends. Refund requests for forgetting to cancel on time are not accepted.
When you subscribe to an API free trial, you can make up to 50 API calls. If you wish to make additional API calls beyond this limit, the API will prompt you to perform an "Start Your Paid Plan." You can find the "Start Your Paid Plan" button in your profile under Subscription -> Choose the API you are subscribed to -> Pricing tab.
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