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
{"status":"ok","version":"0.1.0","timestamp":"2026-04-02T03:49:14.586Z"}
curl --location --request GET 'https://zylalabs.com/api/12277/test+data+generator+mockhero+api/23045/health+check' --header 'Authorization: Bearer YOUR_API_KEY'
| Header | Description |
|---|---|
Authorization
|
[Required] Should be Bearer access_key. See "Your API Access Key" above when you are subscribed. |
No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.
The Generate Test Data endpoint returns synthetic data based on a defined schema. This includes realistic entries such as names, emails, addresses, and other specified fields, structured according to the relationships and constraints defined in the schema.
The response data is organized in a JSON format, with a top-level "data" object containing arrays for each defined entity. For example, a "users" array may include multiple user objects, each with fields like "id," "name," and "email."
Users can customize their data requests by specifying parameters such as the schema definition, number of rows to generate, and relationships between tables. This allows for tailored data generation that meets specific testing needs.
The List Field Types endpoint provides a comprehensive list of over 50 field types available for data generation, including types like uuid, email, phone, address, and price, enabling users to select appropriate fields for their schemas.
The Health Check response includes fields such as "status," indicating the API's operational state (e.g., "ok"), "version," which specifies the current API version, and "timestamp," providing the exact time of the status check, useful for monitoring.
Users can utilize the returned data by integrating it into their development and testing environments, such as seeding databases for development, populating test fixtures for CI/CD, or creating realistic datasets for QA testing scenarios.
Typical use cases include seeding development and staging databases, populating CI/CD test fixtures, conducting load tests with realistic data, and creating demo environments for showcasing applications or features.
Data accuracy is maintained through schema awareness, ensuring that generated data adheres to defined relationships and constraints. Additionally, deterministic seeds allow for reproducible data, which is crucial for consistent testing outcomes.
To obtain your API key, you first need to sign in to your account and subscribe to the API you want to use. Once subscribed, go to your Profile, open the Subscription section, and select the specific API. Your API key will be available there and can be used 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.
If you don’t cancel before the 7th day, your free trial will end automatically and your subscription will switch to a paid plan under the same plan you originally subscribed to, meaning you will be charged and gain access to the API calls included in that plan.
The free trial ends when you reach 50 API requests or after 7 days, whichever comes first.
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, we offer a 7-day free trial that allows you to make up to 50 API calls at no cost, so you can test our APIs without any commitment.
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.
Please have a look at our Refund Policy: https://zylalabs.com/terms#refund
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