SMSAPI

Overview

SMSAPI started in Poland in 2007 as an SMS module for online shops and is now a brand of LINK Mobility Group. It sells bulk and transactional SMS through a web portal, a mobile app and an HTTP API, and says it holds an ISO 27001 certificate and complies with the GDPR. Its company page says it sent over 2 billion SMS in 2025 and launched RCS that year.

Key features

• HTTP API for single and bulk SMS, templates, scheduling and SMS authenticator codes
• Delivery reports and inbound messages pushed to a callback URL
• Virtual mobile numbers for two-way SMS, with replies by callback, email or in the portal
• HLR lookups, contacts, block list and subaccounts
• WhatsApp Business API, with RCS listed as launched in 2025
• Libraries on GitHub and ready-made integrations with e-commerce and CRM tools

Pricing

Pay as you go with no setup fee or contract, priced per country for 217 countries, with a €30 minimum payment. Free test messages are available without a credit card. Volume customers can request an individual offer.

How it compares to Linq

SMSAPI has no iMessage, which is Linq's main channel. Its API docs cover SMS; RCS appears only as a 2025 launch on the company page. SMSAPI charges per message; Linq charges a flat monthly fee from $260 for Pro.

Best for

European shops and businesses that send SMS notifications and campaigns and pay per message.

Sources

• smsapi.com/en
• smsapi.com/en/company
• smsapi.com/en/sms-pricing
• smsapi.com/en/sms-api
• smsapi.com/en/virtual-mobile-numbers
• smsapi.com/en/whatsapp
• smsapi.com/docs
• github.com/smsapicom