mockherodev/mcp-server

Synthetic test data API. Generate realistic, relational data for any database schema.
What it does
- **156 field types** across 15+ categories (identity, location, financial, temporal, and more)
- **Relational data** — foreign keys just work. Orders reference real user IDs, reviews link to real products. One API call seeds your entire database.
- **3 input modes** — structured schema, plain English prompt, or pre-built templates
- **Auto-locale** — add a country enum field and names, emails, phones match each row's nationality. 22 locales supported.
- **JSON, CSV, SQL output** — Postgres, MySQL, SQLite dialects
- **Deterministic seeds** — same seed + same schema = identical data every time
- **MCP server** — use from Claude Desktop, Cursor, Windsurf, or any AI agent
Quick start
Or use plain English:
Templates
Pre-built schemas for common patterns — no schema definition needed:
Available: ecommerce, blog, saas, social
MCP server
Use MockHero from AI agents via the Model Context Protocol.
Hosted remote MCP endpoint for agent-first clients:
This endpoint exposes estimate, loginless Polar checkout, checkout status, API key claim, schema detection, templates, and generation tools.
Local stdio MCP server for agents that run npm packages:
See @mockherodev/mcp-server for setup instructions.
Pricing
| | Free | Pro | Scale |
|---|---|---|---|
| Daily records | 500 | 100,000 | 1,000,000 |
| Requests/min | 10 | 60 | 200 |
| Price | $0 | $29/mo | $79/mo |
Tech stack
- Next.js 15 (App Router)
- Supabase (Postgres)
- Clerk (Auth)
- Polar (Billing)
- Tailwind v4
License
MIT