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SMS Verification API

Connect SMS code receiving to your product or operations system

The One SMS API helps developers automate service lookup, virtual number extraction, SMS polling, and number release without relying on manual copy and paste.

Get an API key View API docs

Clear workflow

Query available services, request a number, submit it to the target service, poll for the SMS code, and release the number.

Automation ready

Use the API in test suites, internal tools, bulk verification workflows, and operations dashboards.

Task tracking

Keep task IDs and status details in your own logs so retries, reconciliation, and support are easier.

Recommended integration path

  1. Confirm service and country availability in the console.
  2. Use the API key in a test environment first.
  3. Set a reasonable polling interval for SMS lookup.
  4. Handle success, failure, timeout, and release states explicitly.
Query service -> Request number -> Submit number -> Poll SMS -> Release number

FAQ

What is the SMS verification API for?

It is designed for automated verification workflows, internal operations tools, test environments, and systems that need to query SMS codes programmatically.

What do I need before calling the API?

Create a One SMS account, get an API key from the console, and follow the API documentation for service, country, or keyword parameters.