Compare the Top SMS API Providers in Japan as of November 2025

What are SMS API Providers in Japan?

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 SMS API providers in Japan currently available using the table below. This list is updated regularly.

  • 1
    Telnyx

    Telnyx

    Telnyx

    See how the developer friendly Telnyx API can transform your business communications. Telnyx is an all-in-one communication platform designed to be tailored exactly to your needs. We created our network with real-time communications in mind so we can deliver quality calls, messaging, and data around the world. Easily build reliable messaging with our SMS API. Keep your data safe by setting up two-factor authentication using SMS or voice codes. Plug and play your VoIP setup in minutes and get carrier-grade voice with elastic SIP trunks. Our cloud-agnostic approach means you can rest easy knowing you are protecting in case of a network failure. With Telnyx deploy communications exactly to specifications.
  • 2
    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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