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
--
Endpoints
--
Users
--
Uptime
--
Requests Processed
Why use Theresa API?
Designed so you can focus immediately on building, rather than managing infrastructure.
Fast & Lightweight
Every endpoint responds in milliseconds, so your bot or app never feels like it's waiting on us.
Simple API Key Auth
One API key unlocks every endpoint. No OAuth dance, no complicated setup to get started.
Built for Automation
Purpose-made for WhatsApp bots, automation scripts, and background jobs that run unattended.
Clear Documentation
Every endpoint comes with live, testable examples — browse them all in the docs.
Ready to start building?
Grab your API key and explore every endpoint in the documentation.
Go to Documentation