Compare the Top Free SMS API Providers as of February 2026

What are Free SMS API Providers?

SMS API providers, also known as SMS gateway providers, offer technology that enables software applications to send, receive, and track Short Message Service (SMS) messages over an internet protocol. They provide a way for businesses to communicate with customers in real-time via text as an integrated part of their overall communication strategy. These services are often cost-effective and easy to integrate into existing systems. Additionally, providers typically offer support in the form of user guides and documentation. Compare and read user reviews of the best Free SMS API providers currently available using the table below. This list is updated regularly.

  • 1
    GreenAds Global

    GreenAds Global

    GreenAds Global

    GreenAds Global stands at the forefront of omnichannel engagement, providing a wide array of messaging channels, tools, and solutions designed for sophisticated customer interactions, authentication, and security. With strong carrier connections and offices in Hyderabad, Dubai, and Kochi, GreenAds Global is the trusted partner for top companies worldwide to expand their customer communications. We assist our clients and partners in managing the challenges of consumer communications, boosting their business, and improving customer experiences with efficiency, security, and dependability. With GreenAds Global, you can achieve enhanced customer engagement through a diverse selection of local and global channels, including: WhatsApp API RCS Messaging Chatbot Bulk SMS Voice Solutions
    Starting Price: 0.01 $
  • 2
    Textbelt

    Textbelt

    Textbelt

    Textbelt is a no-nonsense SMS API built for developers who just want to send SMS. Thousands of customers prefer Textbelt over other SMS providers for our ease of setup, simple, predictable pricing packages, and personal support. No recurring billing, unnecessary add-ons, or client libraries. Send 1 free text per day. Create your own key to send more messages afterward. Textbelt offers open-source and paid versions. An SMS provider you can trust. Textbelt has worked with thousands of developers and businesses since 2012. Delivery statuses are not standardized between mobile carriers. For example, some carriers will report SMS as "delivered" when they attempt transmission to the handset while other carriers actually report delivery receipts from the handsets. Textbelt lets you receive replies after you've sent an SMS. Replies are sent by webhook, meaning you will have to set up an HTTP or HTTPS route on your website that will process inbound SMS.
    Starting Price: $3 per 50 texts
  • 3
    Textr Team
    Increase customer engagement with an automated business phone system with all your calling and texting needs in one app. We have apps for all use cases, from personal to business. For individuals who carry multiple phones and wish to handle all business phone communication in one automated platform that is synced across all of their devices. Save thousands of dollars on a new device, phone plan, and phone number when starting your small business. We offer a lightweight CRM, IVR attendant, SMS campaign features, and more to boost business productivity. Textr Team is the perfect solution for freelancers and sole proprietors who want to message and call their clients or customers on one automated platform. Add your collaborators to Textr Team and cut down your business communication costs. The key to success is enabling your team with next-gen digital tools. Our outbound sales features allow your representatives to focus on clients and closing potential leads.
    Starting Price: $6.99 per month
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