Twilio SMS Server

heroku create your-app-name heroku config:set ACCOUNT_SID=your_sid heroku config:set AUTH_TOKEN=your_token heroku config:set FROM_NUMBER=your_number git push heroku main

# Build Docker image docker build -t twilio-sms-server . # Run container docker run -p 3000:3000 \ -e ACCOUNT_SID=your_sid \ -e AUTH_TOKEN=your_token \ -e FROM_NUMBER=your_number \ twilio-sms-server

# Start the server npm run start:web # Test health endpoint curl http://localhost:3000/health # Send a test SMS curl -X POST http://localhost:3000/send-sms \ -H "Content-Type: application/json" \ -d '{"to": "+1234567890", "message": "Hello from the API!"}' # Send a greeting curl -X POST http://localhost:3000/send-greeting \ -H "Content-Type: application/json" \ -d '{"to": "+1234567890", "occasion": "birthday"}'

💬 Example Interactions with Claude (MCP Mode)

Here are some natural ways to interact with the server through Claude:

Send a text message to +11234567890 saying "Don't forget about dinner tonight!"

Write a haiku about autumn and send it to my number +11234567890

Send a birthday greeting to +11234567890

- npm run build- Build TypeScript to JavaScript
- npm run start:mcp- Start MCP server mode
- npm run start:web- Start web API server mode
- npm run dev:web- Development mode (rebuild + start web server)
- npm run watch- Watch TypeScript files for changes
- Phone Number Format: All phone numbers must be in E.164 format (e.g., +11234567890)
- Twilio Trial Accounts: Can only send messages to verified phone numbers
- Rate Limits: Be aware of your Twilio account's rate limits and pricing
- Security: Keep your Twilio credentials secure and never commit them to version control
- Environment Variables: Use.envfile for local development, set via platform for cloud deployment
-

"Phone number must be in E.164 format"

- Ensure phone number starts with "+" and includes country code

"Invalid credentials" / "accountSid must start with AC"

"Invalid 'To' Phone Number"

- For trial accounts: Verify the destination number in Twilio Console
- For paid accounts: Ensure the number format is correct

"Environment variable is required"

- Check that.envfile exists and contains all required variables
- For cloud deployment, ensure environment variables are set in platform settings

Contributions are welcome! Please read our contributing guidelines before submitting pull requests.

This project is licensed under the MIT License - see the LICENSE file for details.

Please do not include any sensitive information (like phone numbers or Twilio credentials) in GitHub issues or pull requests.

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