Documentation

Everything you need to send your first SMS in under a minute — and to build serious integrations.

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API reference

Code examples

AI auto-reply

Integrations

Quickstart in 30 seconds

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!"
  }'

Create an API key (starts with sk_live_) in the portal after signup.