REST API for developers
Build faster with Theresa API
A collection of ready-to-use endpoints for WhatsApp bots, automation tools, and your other projects. Just one API key, no additional servers required.
No credit card required · Start for free
Why use Theresa API?
Designed so you can focus immediately on building, rather than managing infrastructure.
Fast & Lightweight
Average response under 1 second for most endpoints, with no complex setup required.
Secure & Reliable
API key-based authentication with rate limiting, keeping your usage protected.
Diverse Endpoints
From media downloads and file conversions to AI tools — growing every week.
Clear Documentation
Every endpoint comes with request examples, parameters, and a playground for live testing.
Responsive Support
Have an issue? Send feedback directly from the dashboard and our team will assist you immediately.
Affordable Pricing
Start for free with a daily quota, upgrade anytime according to your project's needs.