SMSFactor API
SMSFactor API: A focused SMS API for sending transactional messages, tracking delivery, and handling replies. Ranked #62 of 75 in Transactional SMS Software by our editors (3.5/10); pricing: Paid; best for teams needing a basic two-way transactional SMS API.
At a glance
- Editor score3.5 / 10
- PricingPaid
- Best forTeams needing a basic two-way transactional SMS API
- Pay-as-you-goYes
- Facts checked24 Sep 2026

Where it wins
- REST API supports programmatic transactional SMS sending.
- Delivery status reporting and callbacks cover message events.
- Inbound and two-way SMS are supported in eligible countries.
Where it doesn't
- Inbound replies are supported only in certain countries.
- Pricing varies by destination and message volume.
- The listed service centers on SMS rather than multiple messaging channels.
Our verdict on SMSFactor API
SMSFactor API is a cloud SMS service for businesses and developers that need application-generated messages such as transactional notifications, authentication codes, and alerts. Its REST API handles programmatic sending, while a web dashboard provides a way to manage SMS traffic, contacts, messages, and credits. Small, mid-market, and enterprise teams are listed as potential fits, though the product is most directly suited to teams seeking a basic transactional SMS API rather than a broader messaging suite.
The API covers the main send-and-track workflow: transactional SMS delivery is paired with delivery status reporting and webhooks or callbacks for message events. Inbound replies and two-way messaging are also supported, with inbound availability limited to supported countries. That combination can suit services that need to receive a response as well as send a notification, but teams should check that reply support covers the countries they serve. The available product description focuses on SMS traffic, so organizations looking for multiple messaging channels should consider a different kind of service.
SMSFactor uses a paid, pay-as-you-go model, and pricing varies by destination and message volume. This structure ties cost to where messages go and how many are sent, so teams planning transactional traffic will need to account for both factors rather than rely on one universal rate. The available feature set does not suggest a complicated product scope: it is centered on API sending, delivery visibility, event callbacks, inbound SMS, and dashboard management. Choose SMSFactor API if those SMS functions match your application workflow and geographic needs; look elsewhere if you need messaging beyond SMS or inbound replies in countries outside its supported coverage.
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SMSFactor API pricing
SMSFactor API fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Not verified |
| Pay-as-you-go | Yes |
| SMS API | Yes |
| Delivery status | Yes |
| Webhooks | Yes |
| Two-way messaging | Yes |
| Monthly message limit | Not verified |
| Deployment | Cloud |
| Platforms | Web |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Paid (source) |
| Website | smsfactor.com |
| Facts checked | 24 Sep 2026 |
Alternatives to SMSFactor API
- Twilio Programmable MessagingA broad programmable messaging stack with usage-based pricing and developer-oriented controls.9.4
- AWS End User Messaging SMSA pay-as-you-go SMS API for AWS teams sending monitored global transactions.9.3
- Bandwidth SMS APIA usage-priced API for high-throughput, two-way U.S. SMS and MMS workflows.9.2
See all SMSFactor API alternatives →
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Featured on iTechGuides
SMSFactor API is listed in our Transactional SMS Software directory. Add the badge to your site — it links back to this page.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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