# VietMRR > Database of verified revenue for Vietnamese startups. Revenue is read with read-only keys from payment providers (Stripe, payOS, SePay, Casso, RevenueCat, Polar, Paddle, Lemon Squeezy) every hour. Amounts are in VND. ## Data access - REST API: https://vietmrr.com/v1/startups (API key required, see https://vietmrr.com/en/developers) - MCP server (read-only, no key): https://vietmrr.com/v1/mcp ## Pages - [Leaderboard](https://vietmrr.com/en) - [Startups for sale](https://vietmrr.com/en/acquire) - [Stats](https://vietmrr.com/en/stats) ## Startups - [tatca.ai](https://vietmrr.com/en/startup/tatca-ai): An all-in-one AI assistant for Vietnamese users: search, study, writing, image generation, astrology, tarot and AI characters to chat with. — 37,600,000 VND 30-day revenue