How to start sending messages with Smstools

Step 1 — Create your account

1. Sign up. Head to www.smstools.com/ and create an account. Onboarding is self-service, so you can start immediately. New accounts include Free test credit on sign-up to test with.
2. Grab your keys. Open the dashboard and copy your credentials. Smstools uses API key and secret sent as X-Client-Id and X-Client-Secret headers (found in the dashboard under Developers > API keys).
3. (Optional) Use the sandbox. Smstools offers a test environment, so you can validate your integration before sending live traffic.

Step 2 — Send your first SMS

The fastest path is a single API call. Drop in your credentials and a destination number, then run this from your terminal:

curl -X POST "https://api.smsgatewayapi.com/v1/message/send" \
  -H "X-Client-Id: YOUR_CLIENT_ID" \
  -H "X-Client-Secret: YOUR_CLIENT_SECRET" \
  -H "Content-Type: application/json" \
  -d '{"message": "Hello World", "to": "11231231234", "sender": "YourName"}'

The request hits https://api.smsgatewayapi.com/v1/message/send. A 2xx response means Smstoolshas accepted your message for delivery — you should see it arrive within seconds.

Step 3 — Go native with an SDK

Once the raw call works, switch to an official SDK for retries, typing and error handling.Smstools ships SDKs for PHP, Node.js, Python, Ruby, PowerShell, and PHP is a great place to start.Full reference lives in the Smstools documentation.

What's next

• Add more channels. Smstools also supports WhatsApp, Voice — reuse the same account and credentials.
• Mind compliance. Smstools is GDPR aligned, with EU and no US data residency options.
• Compare before you commit. See how Smstools stacks up on the provider table or in a head-to-head comparison.