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SMS (Twilio)

SMS (Twilio)

Essential9 minutes3 questions2026-08-09
The idea in one minute

Start with meaning, then move to detail.

This lesson explains SMS (Twilio) as part of operating Hermes with explicit security boundaries. You will learn what it does, when it matters, and the smallest safe test that proves it works.

If you are new

If you are new, do not memorize names. Focus on three questions: what problem does this solve, what access does it need, and how can you verify the result?

For hands-on use

For practice, inspect the first example, identify its effects, run it on test data, and compare the result with the source claim.

For specialists

For advanced readers, inspect Prerequisites, Step 1: Get Your Twilio Credentials, Step 2: Configure Hermes, then verify failure modes and version compatibility.

What do you need first?

You only need to know which files and accounts the agent may access.

What will you know?

A clear outcome before you read.

  • Understand SMS (Twilio) without assumed prior knowledge.
  • Separate the source description from what still needs testing in your environment.
  • Read the first command and identify its inputs and outputs before copying it.
Lesson terms

Short definitions before the details.

Gateway
The process that connects Hermes to channels such as Telegram or Discord and routes messages.
Approval & sandbox
Approval pauses a sensitive action before execution; sandboxing limits impact if something goes wrong.
Official page description

Set up Hermes Agent as an SMS chatbot via Twilio

Topic map

What does the source say, and in what order?

  1. 01
    Prerequisites

    Start here to understand the core idea or structure.

  2. 02
    Step 1: Get Your Twilio Credentials

    Read this after the foundation, then connect it to the previous step.

  3. 03
    Step 2: Configure Hermes

    Read this after the foundation, then connect it to the previous step.

  4. 04
    Interactive setup (recommended)

    Read this after the foundation, then connect it to the previous step.

  5. 05
    Manual setup

    Read this after the foundation, then connect it to the previous step.

  6. 06
    Step 3: Configure Twilio Webhook

    Read this after the foundation, then connect it to the previous step.

  7. 07
    Step 4: Start the Gateway

    Read this after the foundation, then connect it to the previous step.

  8. 08
    Environment Variables

    Read this after the foundation, then connect it to the previous step.

  9. 09
    SMS-Specific Behavior

    Read this after the foundation, then connect it to the previous step.

  10. 10
    Security

    Finish here to verify the result and special cases.

Examples from the official page

Copy only after you understand the effect.

hermes gateway setup
TWILIO_ACCOUNT_SID=ACxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx TWILIO_AUTH_TOKEN=your_auth_token_here TWILIO_PHONE_NUMBER=+15551234567 # Security: restrict to specific phone numbers (recommended) SMS_ALLOWED_USERS=+15559876543,+15551112222 # Optional: set a home channel for cron job delivery SMS_HOME_CHANNEL=+15559876543
# Using cloudflared cloudflared tunnel --url http://localhost:8080 # Using ngrok ngrok http 8080
Try it now

Read the first command and identify its inputs and outputs before copying it.

Match every command to your installed Hermes version, review the files and accounts it can reach, and use non-sensitive data for the first test. If this explanation differs from the source, the official source wins.

Knowledge check

Three decisions before completion.

1. What is the source of truth when “SMS (Twilio)” changes?
2. What is the best way to apply this lesson?
3. What should happen before a step can modify files or an external account?