Own-number SMS API

Send SMS by API from your own mobile number

Keep the SIM and phone number your customers recognize while your website, CRM or backend decides when and what to send.

Test with my phone Explore the API

Your compatible mobile
Your SIM and number
API, workflows and integrations

APIRequest accepted

EVENTActivity synchronized

The precise problem

Changing sender identity can break trust and replies

Many SMS services issue a new number or use an alphanumeric sender. SMSMobileAPI routes the request to your connected mobile so the SMS leaves through your own SIM and real number.

A simple, visible flow

From the business event to the useful result

One controlled chain connects your software, SMSMobileAPI and the mobile you own.

01 API request

02 Secure account routing

03 Your chosen mobile

04 SMS from your number

40-second demonstration

From API request to your own number in four steps

The sequence repeats automatically. Pause on any step to read it at your own pace.

00:40guided walkthrough

1
Pair
Connect the phone that contains the SIM and number you want to use.
2
Authenticate
Keep the account API key on your server and call the SMS endpoint.
3
Route
Choose a mobile ID or allow automatic selection of an available phone.
4
Confirm
Track the request and continue the conversation when the contact replies.

A real business example

Example: a local agency automates customer follow-up

After a quote is created, the CRM asks SMSMobileAPI to send a short follow-up from the agency mobile. The customer can reply to the same number they already saved.

Result: automation without replacing the business mobile identity.

Honest limits

Know the operating conditions before you scale

A physical-mobile architecture is powerful when its real constraints are included in the design.

The recipient sees the connected SIM number according to the carrier and destination network behavior.

Carrier pricing, fair-use rules and anti-spam obligations still apply.

Keep API keys server-side; do not expose them in public JavaScript, apps or shared screenshots.

Choose how you build

One mobile platform, several implementation paths

Start with the simplest path that fits your team, then combine capabilities when the workflow grows.

01REST API

Build direct server-side actions with documented endpoints and OpenAPI.

Open developer hub → 02Webhook V2

Push selected SMS and call events to signed HTTPS destinations with retries.

Explore webhooks → 03Workflow Studio

Create event, condition and action automations from a visual workspace.

See workflow automation → 04Ready integrations

Connect CRM, ERP, commerce and automation tools without starting from zero.

Browse integrations →

Questions for this use case

Frequently asked questions

Will the SMS really use my existing mobile number?

The connected mobile sends through its own SIM, so the network uses that mobile identity where supported by the operator.

Can I choose which phone sends each message?

Yes. Provide a mobile identifier, or leave the choice automatic so an available connected phone can send.

Do I have to port my number?

No. The purpose of this model is to keep the SIM and number in your own compatible phone.

Start with one controlled test

Connect your phone and prove the workflow with a real message.

Create an account, pair one compatible mobile and validate the complete path before you scale.

Test with my phone Download the mobile app