Best SMS API Providers in the UK of 2026

Compare the Top SMS API Providers in the UK as of April 2026

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What are SMS API Providers in the UK?

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 the UK currently available using the table below. This list is updated regularly.

1

Twilio Messaging

Twilio

The Twilio SMS API is a powerful tool that enables businesses to seamlessly integrate messaging capabilities into their applications, providing a direct and efficient communication channel with customers. With the ability to send and receive SMS messages globally, the API supports a wide range of use cases, from transactional alerts and appointment reminders to marketing campaigns and customer support. The API's robust features include message scheduling, delivery status tracking, and support for long messages, ensuring that businesses can tailor their messaging strategies to meet specific needs. Additionally, Twilio's SMS API is designed with scalability in mind, allowing businesses to handle high volumes of messages with ease. Its comprehensive documentation and developer-friendly interface make it easy to implement and customize, while Twilio's reliable infrastructure ensures high deliverability and performance.

1,096 Ratings

Starting Price: $0.0079 per message

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2

Twilio

Twilio

Twilio's SMS API empowers businesses to integrate robust messaging capabilities into their applications, enhancing customer communication and engagement. By leveraging Twilio's cloud-based API, companies can send and receive SMS messages globally, ensuring seamless interaction with customers. The SMS API offers a RESTful interface, allowing developers to easily integrate messaging functionalities using any programming language. Twilio provides Helper Libraries to simplify the process, enabling rapid development and deployment of messaging solutions. With Twilio's SMS API, businesses benefit from a pay-as-you-go pricing model, ensuring cost-effectiveness by charging only for messages sent and received. This flexibility allows companies to scale their messaging operations as needed, without incurring unnecessary costs.

1,380 Ratings

Starting Price: $0.0085 per min

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3

ClickSend

ClickSend

ClickSend is a simple, global SMS platform built for developers and the businesses they support. Built on a battle-tested API that always delivers with: - Billions of messages delivered globally - Direct routes only to 190+ countries - 99.95%+ uptime - Lightning-fast delivery - Pay-as-you-go pricing — no lock-ins - 24/7 support from people who actually understand APIs - It works straight out of the box — and keeps working as you scale. Already use Zapier, ActiveCampaign, Make or Power Automate? There are pre-built integrations ready to go. Sign up and send your first message in minutes with free test credits. Perfect for: alerts, 2FA codes, marketing campaigns and transactional messaging.

73 Ratings

Starting Price: $20 minimum topup

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4

Textmagic

Textmagic

Textmagic is an all-in-one business text messaging platform designed to help companies send bulk texts, manage two-way conversations, and automate notifications with ease. The platform's streamlined features, such as scheduled messaging, customizable templates, contact management, and WhatsApp integration allow you to connect with customers globally in just a few clicks. Textmagic also helps you optimize and monitor SMS campaigns in real time with robust reporting tools that offer insights into delivery rates, engagement, and response times, ensuring transparency for every message sent. For businesses needing deeper integration, Textmagic’s SMS API and Zapier compatibility make it easy to connect with websites, CRMs, and other apps, enabling seamless automation. Whether for marketing, notifications, or internal communication, Textmagic can provide the tools to simplify your messaging efforts, with flexible pricing and reliable support to back up any company’s growth.

45 Ratings

Starting Price: $24.50/500 texts

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5

Fast2SMS

Fast2SMS

Bulk SMS service or bulk message means sending SMS to one or more recipients via software/API/web platforms such as Fast2SMS provides a platform to send online bulk SMS in India. Generally, in India to send bulk SMS you need DLT registration but with the Fast2SMS panel, you can also send SMS without DLT registration. Bulk SMS can be sent like an individual SMS to customers e.g. receiving an OTP, notification on a transaction. If any online or offline businesses want to create, schedule, and send SMS campaigns for marketing or notification then all those activities can be done from Fast2SMS bulk SMS software. Fast2SMS DLT SMS & Bulk SMS Service is used by various national companies, schools, colleges, organizations, developers, NGOs & government agencies for promotion, communication, transactional alerts, notifications, reminders, OTP, and feedback.

1 Rating

Starting Price: $0.012 per SMS

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6

Blooio

Blooio

Blooio is an iMessage API and business messaging platform that lets companies send and receive Apple iMessages using dedicated phone numbers. Connect through a REST API, HighLevel, n8n, Make, Zapier, or webhooks to automate iMessage conversations at scale. Send messages, track delivery, manage contacts and groups, show typing indicators, and receive real-time webhook events. Automatic RCS and SMS fallback ensures every contact is reached regardless of device. Built for sales teams, marketing agencies, support departments, and AI agent builders. Use Blooio to power lead follow-up sequences, appointment reminders, chatbots, and outbound outreach with the highest reply rates in messaging. Enterprise features include number pools, auto-scaling, auto-unbanning, FaceTime calling, custom area codes, and white-label support. 99% delivery rate across 10M+ messages sent. Free trial available. No credit card required. Full API docs and OpenAPI spec on the website.

1 Rating

Starting Price: $39

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7

EasySendSMS

EasySendSMS

EasySendSMS is a cloud-based bulk SMS platform and global SMS gateway designed to help businesses communicate with customers quickly, reliably, and at scale. The platform enables organizations to send marketing messages, transactional alerts, and one-time password (OTP) verification codes to mobile users worldwide through a secure web dashboard or a powerful SMS API. With coverage across 200+ countries and more than 1,100 mobile networks, EasySendSMS provides businesses with a scalable infrastructure for delivering high-volume messaging campaigns and time-critical notifications. The platform supports both small campaigns and enterprise-level messaging workloads, allowing companies to send thousands or even millions of messages efficiently. The EasySendSMS platform includes a developer-friendly REST API that allows seamless integration with websites, mobile apps, CRM systems, and SaaS platforms.

1 Rating

Starting Price: $9

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8

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 $

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9

CM.com

CM.com

Mobile communication and payments solutions. Combine messaging channels like WhatsApp with innovative payments to create true Conversational Commerce. We help companies communicate. Our customers use SMS, Voice and the world’s most popular chat apps: WhatsApp, Apple Business Chat, Google RCS. Start the conversation in the channel your customers prefer and let the AI bot do the talking. Integrate commerce in the conversation to drive conversions. CM.com is a licensed Payment Service Provider, offering a range of options for any channel with Apple Pay, Google Pay, WeChat Pay, Credit Cards and local payments like iDeal and Bancontact. CM.com is also a Ticketing platform helping festivals, museums and stadiums sell and manage any type of ticket. The Customer Data Platform takes marketing to a personal level. Identity and e-sign solutions assure authentication in any transaction.

Starting Price: $0/month

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10

smsmode

smsmode©

Communication Platform As A Service (CPaaS). smsmode© provides complete mobile messaging routing services. SMS, TTS, Google RCS or WhatsApp Business. Connect with your customers around the world via our innovative and powerful tools, with the level of security you need to ensure. smsmode© integrates easily with your existing tools to increase their potential through mobile messaging. Use our REST API, SMPP and plugins to create these custom integrations with your applications, CRM, ERP, and more. Our documentation and our experts will help you to reach your goals! European solution GDPR compliant ISO 27001 & 27701 99.95% SLA Responsability Europe CSR Commitment

Starting Price: €9 per month + 4.40 cts / SMS

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11

klink.cloud

K-LINK

klink.cloud is a comprehensive omnichannel contact center platform that unifies all customer interactions across multiple channels, including voice, video, email, SMS, and social media. It features robust in-app voice and video calling capabilities, conversational AI and chatbots for automation, and virtual numbers from over 80 countries. The platform offers advanced CRM and ticket management systems, complete with help desk ticketing, team collaboration, and custom reporting. Its IVR and ACD systems ensure efficient call routing, while comprehensive call management tools provide real-time metrics and detailed performance reports. Seamless API integrations allow for easy synchronization with existing tools, enhancing the platform's flexibility and functionality. Enterprise-ready and scalable, klink.cloud is designed to streamline customer support operations, improve customer satisfaction, and deliver a seamless customer experience across all touchpoints.

Starting Price: $14.99

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12

MessageWhiz

MessageWhiz

23 billion text messages are sent every day around the globe, making messaging applications one of the most widely used mobile apps. Businesses in every industry are tapping into the power of these linked, branded messages, using it to nurture leads, drive traffic, or confirm identification. MessageWhiz’s SMS business texting solutions are ideal for every industry, no matter where your business or customers are located. Our text messaging SMS solutions for business and company SMS campaign services provide instant communication. Delivered in real-time, and in context.

Starting Price: €149 per month

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13

Burst SMS

Burst SMS

Send campaigns, schedule messages, or track analytics in real time with our online SMS service. Unlock a host of contact functions such as multiple list uploading options, integrated web forms, replies, global opt-out lists, segmentation, or staggered sending. Use keywords to trigger an inbound SMS campaign. Keywords may also include special UTF-8 characters from over 150 languages or 1,000+ emojis. Send SMS replies to an email or convert email responses to text messages. Conversations will also be sorted into individual email threads. This app is the fastest way to send a message. Bookmark the send SMS link to your browser bar and access it from any window without logging in. Choose a feature-rich SMS API that you can rely on. Get started with our extensive documentation, designed to help developers deploy quickly with a wide selection of HTTP callbacks. Deploy SMS fast with our quick start API docs.

Starting Price: $5 per month

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14

Text Torrent

Text Torrent

Text Torrent is a powerful bulk SMS and SMS API platform built for businesses that need secure, scalable, and compliant messaging. From promotional campaigns to transactional alerts, Text Torrent helps industries like e-commerce, real estate, healthcare, finance, restaurants, and nonprofits engage their audiences with 98% open rates.

Starting Price: $49/month

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15

QuickSMS

QuickSMS

QuickSMS — Enterprise-grade business messaging (SMS, RCS & WhatsApp) QuickSMS is a security-first messaging platform that helps organisations send time-critical notifications, 2FA/OTP codes, appointment reminders, and marketing alerts at scale - across SMS, RCS Business Messaging, and WhatsApp Business. Built for reliability and compliance, QuickSMS is used by SMEs, public sector bodies, and enterprises that need auditable delivery, robust APIs, and fast onboarding. Why QuickSMS Omnichannel: SMS at the core, with optional RCS and WhatsApp Business to enrich messages with media, buttons, and branding. Deliverability & speed: High delivery performance (typical ~97%); real-time reporting and webhooks. Developer-friendly: Operator-scale routing: with international reach to 200+ destinations. Trust & Compliance (independently audited) ISO/IEC 27001, ISO 9001, ISO 14001, ISO 45001 certified Cyber Essentials & Cyber Essentials Plus certified Exceeds NHS DSP Toolkit

Starting Price: $0

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16

elfoA2P

elfo

A wholesale SMS provider is what you need to promote your business. It allows you to send unlimited bulk SMS to single or multiple destinations. elfoA2P is a platform and a messaging gateway for aggregators and resellers to access fast, secure and reliable routes for SMS delivery in A2P messaging. It’s never been so easy to reach your customers with mobile messages! elfo’s A2P wholesale SMS platform enables real-time automated bulk SMS marketing, allowing users to send bulk text messages through a cloud-based system. Using our bulk SMS marketing service is one of the most effective strategies to reach large groups of potential customers with personalized information. elfo’s A2P wholesale SMS platform ensures reliable service for sending bulk text messages with low latency. elfo’s A2P wholesale SMS platform offers many more unique features than any other Wholesale SMS provider. It allows you to send hundreds of millions of SMS without the need for any third-party gateways.

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17

REVE SMS Platform

REVE Systems

REVE SMS Platform is an enterprise-grade service that facilitates companies to handle carrier-grade SMS traffic. With the REVE SMS Gateway, businesses can execute their SMS campaigns seamlessly. Supporting A2P, P2A, and P2P SMS, REVE SMS becomes a robust SMS platform for wholesale carriers, SMS aggregators, MNOs, and MVNOs. REVE SMS gateway translates the message sent and makes it compatible for delivery over the network to be able to reach the recipient. Our robust A2P messaging platform supports all types of messages such as promotional, Bulk SMS, transactional and response-driven SMS, etc. REVE SMS gateway solution is ideal for all kinds of retail and wholesale SMS businesses. If you are into bulk SMS business or want to start your own SMS business, you can take REVE licensed or hosted SMS platform.

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18

Cellcast

Cellcast

Cellcast – Australia's Leading SMS & MMS Platform, is an Australian-owned SMS, MMS, and voice communications platform designed to help businesses of all sizes manage customer communications and run marketing campaigns affordably. With no monthly fees, prepaid credits, and industry-low pricing, Cellcast is the perfect solution for sending bulk SMS, MMS, appointment reminders, and promotional messages. Key Features: - ✅ Wholesale Pricing (pay as you go) - ✅ SMS & MMS Gateway - ✅ Fast Delivery - ✅ Custom Sender ID - ✅ Email to SMS/SMS to Email - ✅ APIs for integration - ✅ Bulk SMS/MMS and scheduling - ✅ Two-way SMS Communication - ✅ Local Australian Support Sign up today and get FREE SMS + MMS credits to experience the power of Cellcast!

Starting Price: $0

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19

Tall Bob

Tall Bob

Tall Bob is a mobile messaging/engagement platform focused on SMS, MMS, RCS, WhatsApp Business, and mobile landing pages, designed to maximise interaction, conversions, and insights. It offers a suite of products; SMS and MMS messaging; a web-portal for SMS, SMS and MMS gateway APIs; and mobile landing pages to build media-rich, interactive customer journeys. Tall Bob emphasises rich content and engagement tools, including video content, surveys, gamification, augmented reality, and catalogues, to make messages more compelling. It provides real-time analytics, dashboards, and reporting to show the performance of campaigns, detailed journey behaviour per recipient, enabling marketers to see which messages, content, and paths are working, and to segment, export, or feed data into third-party systems. The infrastructure promises reliable delivery, strong uptime, and robust local support, including account management and technical team assistance.

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20

CEQUENS

CEQUENS

Thousands of businesses rely on our cloud communications platform to build stronger connections with their customers. Communication Platform supports the world’s most innovative technologies and combines all possibilities making it a reliable tool for digital transformation and global connectivity. Send promotions, push notifications, delivery alerts, order updates, data surveys – whatever you can think of. Use rich media chat and chatbots to empower your teams and cater to every client’s needs – anytime, anyplace. Access a wide library of API references and custom-build your workflows as you see fit. Protect user identities or accounts against online fraud through secure 2-factor authentication and seamless verification experiences.

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21

Route Mobile

Route Mobile

Route Mobile is a leading Cloud Communication Platform provider, catering to enterprises, over-the-top (OTT) players and mobile network operators (MNO).

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22

Sent

Sent, Inc.

Sent is a unified API for sending A2P messages across SMS and apps like WhatsApp and iMessage. The platform instantly identifies and delivers messages to a contact's primary messaging channel — optimizing delivery to offer seamless global reach and reduce the cost of business messaging by 80-90% compared to traditional solutions.

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