plugmyagent

Bandwidth Build Voice API

Voice & Video Free trial

AuthenticationFree trial
Rate limitFree Build trial: 3,000 credits, 1 real US 10DLC number; calls limited to your verified number, 5 concurrent, 30 min max

Documentation: dev.bandwidth.com ยท Checked Sep 13, 2026

About

Bandwidth is a major US voice and messaging network, and their Build plan is a free trial that gets you a real US phone number, a voice application, and 3,000 credits without a credit card. You can make and receive calls with full control over how they're answered, plus set up SIP trunks. The trial limits calls to your verified number, 5 at a time, and 30 minutes each. Plenty to build and test a calling feature.

Details

Free trial. Check the docs for what happens when it ends.

Auth: Free trial

Rate limit: Free Build trial: 3,000 credits, 1 real US 10DLC number; calls limited to your verified number, 5 concurrent, 30 min max

Verified: 2026-09-13

Best for: business developer

Read the docs Back to catalog

Setup

  1. Create a free Bandwidth account with no credit card
  2. Verify your phone number to activate the trial
  3. Get your trial US number and set up a voice application
  4. Point the application at your webhook URL
  5. Answer calls and play audio with Bandwidth's voice commands (BXML)
Sign up