Twilio WhatsApp FAQs

Question 1

What is Twilio WhatsApp FastMCP Server?

Accepted Answer

It's a tool that allows you to send WhatsApp messages via the Twilio API using a FastMCP server. It exposes a `send_whatsapp` tool for FastMCP clients.

Question 2

Can I use this with a Twilio trial account?

Accepted Answer

Yes, but you'll need to use the Twilio Sandbox number and enroll recipient numbers via the Twilio console. Upgrading your Twilio account removes this restriction.

Question 3

How do I set up the environment variables?

Accepted Answer

Create a `.env` file with your Twilio Account SID, Auth Token, and WhatsApp number. Ensure the number is in E.164 format (e.g., +14155238886).

Question 4

How do I test the setup without FastMCP?

Accepted Answer

Use the included `twilio_test.py` script. Modify the `to` and `from_` numbers in the script and run it with `python twilio_test.py`.

Question 5

What are the key features?

Accepted Answer

The key features include sending WhatsApp messages via Twilio, exposing a `send_whatsapp` tool, secure configuration loading from a `.env` file, and a test script for direct API interaction.

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