This page is designed to help you find out whether MockHero.dev is good and if it is the right choice for you.
Realistic test data in one API call. Send a schema or plain English description, get back production-quality fake data with proper names, valid formats, and referential integrity.
Listed in
Field Types
156 built-in types
Locales
22 languages
Output Formats
JSON, CSV, SQL
SQL Dialects
PostgreSQL, MySQL, SQLite
Relational Data
Automatic FK ordering via topological sort
Generation Speed
Sub-50ms
MCP Server
Claude, Cursor, VS Code, Codex
Deterministic Seeds
Same seed = identical output every run
Plain English Mode
Describe data in natural language
Pre-built Templates
E-commerce, Blog, SaaS, Social
MockHero generates multi-table relational data in a single API call with automatic foreign key ordering. Other tools generate flat tables — MockHero's topological sort ensures orders reference real users, reviews link to real products. Plus it ships as an MCP server so AI coding agents can seed databases directly.
Faker requires you to wire foreign keys manually. Mockaroo can't do multi-table in one request. Tonic.ai needs your production data. MockHero generates realistic relational data from a schema definition in one API call — no production data needed, no manual FK wiring, sub-50ms.
We just launched — focused on individual developers and small teams building with Supabase, Neon, Prisma, and other modern stacks. Early adopters are using MockHero through the MCP server in Claude Code and Cursor.
Developers who need realistic test data for development, testing, and CI/CD. Backend developers seeding databases, frontend developers building UIs with realistic data, QA teams writing integration tests, and AI coding agents that need to populate databases autonomously.
Built out of frustration with writing seed scripts by hand. Every new project needs test data, and every time it's the same tedious process — create users, then orders that reference those users, then reviews that reference both. MockHero makes it one API call.
Next.js 15, TypeScript, Supabase (PostgreSQL), Clerk authentication, Vercel hosting. The MCP server uses the Model Context Protocol SDK. Data generation engine is custom-built with topological sort for relational integrity.
MockHero.dev appears to be a useful tool for developers who need quick, reliable mock APIs for testing and prototyping without setting up a full backend, though as with any niche dev tool you should verify current features, pricing, and reliability directly on their site before committing.
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