SMSAPI

SMSAPI is a Polish SMS gateway and bulk-messaging platform operated by LINK Mobility Poland sp. z o.o., part of the Oslo-listed LINK Mobility Group. It serves over 10,000 active customers and offers an HTTP/SMPP API with libraries and detailed docs, a web customer portal for sending bulk SMS, two-way messaging, HLR number lookups and inbound message handling. Typical use cases are e-commerce notifications, marketing campaigns and OTP/2FA. Pricing is pay-per-message with country-dependent rates and volume discounts; the product was originally built around the Polish e-commerce market.