API Reference

The Rentium API allows you to automate SMS verifications at scale. Use our professional endpoints to manage numbers, services, and incoming codes programmatically.

Global Reach

Instantly connect with users in over 150 countries without any complicated setup.

Instant Updates

Get real-time SMS notifications sent directly to your app as soon as they arrive.

Built to Grow

Whether you need ten messages a day or ten million, our system handles it smoothly.

Secure Access

Keep your app safe with industry-standard security and private API keys.

Endpoint Reference

All requests must be made over HTTPS and require a valid Bearer token.

Method	Path	Description
GET	/v1/services	List all platforms supported for verification (WhatsApp, Google, etc.).
GET	/v1/countries	Get availability and pricing across 150+ supported countries.
GET	/v1/operators	Retrieve a list of mobile carriers available for a specific country.
POST	/v1/reservations	Order a new private number for a specific service and operator.
GET	/v1/reservations/{id}	Check the current status and details of an active number rental.
GET	/v1/reservations/{id}/sms	Retrieve incoming verification codes for your active number.
GET	/v1/balance	Check your current wallet balance and active account quotas.

curl -X POST "https://api.rentium.com/v1/reservations" \
     -H "Authorization: Bearer YOUR_API_KEY" \
     -H "Content-Type: application/json" \
     -d '{
       "service": "whatsapp",
       "country": "us",
       "operator": "any"
     }'

Start Renting Now.

The example above shows how to programmatically request a new WhatsApp verification number in the USA. Once the reservation is created, you can poll the SMS endpoint to retrieve your code.

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