Authenticating API requests

Every API request needs an Authorization header with a Bearer token. Keys come in live and sandbox variants — same API surface, separate balances.

Getting a key

1. 01Developers → API keys → Create key.
2. 02Pick the environment (live or sandbox) and an optional label.
3. 03Copy the key — it's shown only once. Store it in your secrets manager.
4. 04Rotate keys anytime. Deleting an old key takes effect immediately.

curl -X POST https://api.smslocal.in/v2/sms/send \
  -H "Authorization: Bearer sk_live_xxx" \
  -H "Content-Type: application/json" \
  -d '{
    "to": "+919876543210",
    "sender": "SMSLCL",
    "template_id": "1234567890123456789",
    "variables": { "name": "Priya", "otp": "482915" }
  }'