Free SMS API.
Here's the honest version.
A free SMS API doesn't exist: carriers charge for delivering every message, so someone always pays. The honest part is that you probably already have — in a dozen countries, unlimited texting comes standard with the phone plan. Our app on your Android phone turns that plan into an API: your software sends from your own number, replies come back to your dashboard, and the messages themselves cost you nothing extra.
What's free here — and what isn't
We would rather draw this line ourselves than let you find it on the first invoice.
Genuinely free
- The messages — if your plan includes texts. As of August 2026, unlimited texting is the standard plan in 12 countries, including the US, the UK, Germany, Canada, Australia and the Philippines
- Receiving — replies and incoming SMS are never billed
- The first 14 days — the full product with unlimited sending, not a demo tier
- Walking away — cancel before day 14 and you pay nothing
Not free — and we won't pretend
- The software: $10.00/month for the first phone, $5.00/month for each additional one after the trial
- The card: it's attached when the trial starts, the way a Google Play subscription works; nothing is charged until the trial ends
- Some countries' texts: in Spain they usually aren't bundled and cost about €0.10 each — check your plan
- Carrier fine print: «unlimited» usually means person-to-person use, and a phone blasting thousands of identical texts gets throttled anywhere
Why send from your own number
It's a two-way channel
A rented shortcode is a one-way megaphone. Your number gets answers — they land in your dashboard as conversations, and your software can fetch them through the API.
Zero onboarding
No sender-ID paperwork, no business verification queue, no waiting for a platform to approve your use case. A SIM in a phone already has the right to send a text.
A number people know
Your message shows up under the name customers saved you as — which is also why they actually open it.
Who uses it
A language school
Homework, schedule changes and fee reminders to a class list. Parents reply with questions; the office answers from the browser.
A computer repair shop
«Your PC is ready for pickup» — fired automatically by the shop's own system the moment a job is closed, from the shop's own number.
A salon
Appointment confirmations the day before. A reply of «running late» reaches the desk instead of vanishing into a no-reply void.
How it works
Install the app
From Google Play, on any Android phone with a working SIM — a spare handset plugged in at the office is the usual setup.
Scan the QR code
Your dashboard shows it; scanning links the phone to your account. That's the whole pairing.
Send
POST to /api/v1/send from your code, or type in the dashboard. Delivery status and replies flow back.
Why no SMS API can be free — and why this one gets close
Carriers charge for SMS termination. Any provider promising free messages is either burning investor money for a while or capping the free part so hard it only covers a hello-world test. That's physics, not stinginess.
Our structure is different in one specific way: your own SIM sends the message, on a plan you already pay your carrier for. As of August 2026, unlimited texting is the standard plan in 12 countries — SIM-only plans with unlimited texts start around £4.50 a month in the UK and about $15 in the US — and in a dozen more markets texts come thousands to a bundle. Our marginal cost per message is zero, which is exactly why the trial can be time-based and unlimited instead of a small credit that dies mid-integration.
And why the card up front? Because an unlimited trial with no card attracts bot farms, and bot farms would force us to cap the trial for everyone. The card makes it one trial per person — Google Play works the same way. Nothing is charged until day 14, the charge date is shown at checkout, and cancelling is one click in the dashboard, not an email to support.
If you decide during the trial that MySMSGate isn't for you — cancel and walk away. No charge, no partial fees, no retention calls.
A real phone, real limits
Free-because-already-paid has a ceiling, and it's set by your carrier, not by us. The US industry code (CTIA, 2023) describes a typical subscriber as sending at most 1,000 messages a day at 15–60 per minute, with no more than 25 near-identical repeats of one text; Indian plans cap texting at 100 a day. The honest zone is hundreds of varied messages a day to your own customers.
For the US, one asterisk: CTIA treats business traffic as A2P regardless of volume, so even modest commercial sending formally falls under A2P rules there. Mass campaigns to a purchased list are a different product — one we don't sell.
FAQ
Is there really a free SMS API?
No — not one that is free forever. Carriers charge for delivering every SMS, so an API promising free messages is either a limited trial or someone else's money running out. What is genuinely free is the sending allowance most people already pay for: as of August 2026, unlimited texting is the standard mass-market plan in 12 countries, including the US, the UK, Germany and the Philippines. Our product turns that allowance into an API — the messages cost you nothing extra, and the software is $10.00/month per phone after a 14-day trial.
So which part is actually free?
The messages, in most countries — because your phone plan already includes them. SIM-only plans with unlimited texts start around £4.50 a month in the UK and about $15 in the US; German Allnet-Flat plans from about €10 include unlimited SMS (carrier prices checked August 2026). If your plan bundles texts, sending through your own SIM adds nothing to your phone bill. What is not free is the software that runs the queue, the API, the dashboard and the inbox — that is what the subscription pays for.
Do I need a credit card for the free trial?
Yes. A card is attached when you start the trial — the same model as a Google Play subscription. Nothing is charged until the 14 days end, and cancelling before then costs you nothing. The card is also what lets the trial stay genuinely unlimited: without it, an unlimited trial would drown in throwaway accounts and we would have to cap it for everyone.
What happens when the trial ends?
If you keep the subscription, the first charge happens: $10.00/month for the first connected phone and $5.00/month for each additional phone, with unlimited sending. If you cancel before the trial ends, you pay nothing — the account stays, sending stops. There are no partial charges and no per-message fees either way, and a lower price applies automatically at checkout in a number of lower-income countries.
Is unlimited really unlimited?
On our side, yes: no message caps and no per-message or per-segment charges, during the trial and after. The realistic ceiling is your own phone and SIM. The US industry code describes a typical subscriber as sending at most 1,000 messages a day at 15 to 60 per minute, Indian plans cap texting at 100 a day, and some carriers' fine print limits unlimited texting to person-to-person use. Hundreds of varied messages a day to your own customers is the honest zone — mass blasts to a purchased list are not.
Are there hidden fees?
No. $10.00/month for the first phone and $5.00/month for each additional one — that is the entire price list. No setup fee, no per-message fee, no per-segment fee, no fee for receiving. The one cost that is not ours to waive is whatever your own mobile plan charges for SMS. In most countries that is nothing — but not everywhere: in Spain texts are usually not bundled and cost about €0.10 each, so check your plan first.
Test everything for 14 days. Then decide.
Unlimited sending during the trial — real traffic, real numbers, no meter. Cancel before it ends and pay nothing.
Start free trial now