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Quickstart

Send your first SMS in a few minutes. You need an Android phone with a SIM that can send SMS.

1. Create an account and pair your phone

  1. Sign up at /signup.
  2. Install the SMS Bridge Android app and grant SMS permissions.
  3. In the portal open Phones → Pair a phone and scan the QR code from the app. The phone appears in Phones once paired.

2. Switch to live mode

New workspaces start in test mode: the API accepts messages and simulates delivery, but nothing leaves your phone. Switch to live in Profile → Workspace mode when you are ready to send real SMS.

3. Create an API key

Settings → API keys → Create key. Keys start with sk_live_ and are shown once — store it in your server's environment, never in client-side code.

4. Send an SMS

curl -X POST https://api.99billingsolutions.com/v1/messages/send \
  -H "x-api-key: $SMS_BRIDGE_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "from_number": "+15550100001",
    "to_number":   "+15550100002",
    "content":     "Hello from SMS Bridge!"
  }'

from_number must be the number of one of your paired phones. The API answers 202 Accepted with the message id; the phone sends it within seconds and the status moves to sent then delivered.

Next steps

API base URL: https://api.99billingsolutions.com/v1