BulkSMS.com | SMS Gateway to 213 Countries | BulkSMS.com

# BulkSMS.com > Global SMS messaging platform for businesses — send and receive SMS in 200+ countries via API or web app. BulkSMS.com is a leading SMS communications platform used by businesses worldwide to send and receive text messages at scale. Founded in 2000, BulkSMS provides reliable SMS delivery to over 200 countries through direct connections to mobile network operators. The platform offers multiple ways to send SMS: a powerful HTTP-based API for developers, a web application for non-technical users, and email-to-SMS integration. Features include two-way messaging, message scheduling, sender ID customisation, Unicode support, and automated responses. BulkSMS serves a wide range of industries including healthcare, education, logistics, financial services, and marketing, with both transactional and promotional messaging use cases. ## Full LLM Context - [llms-full.txt](https://www.bulksms.com/llms-full.txt): Extended machine-actionable context for pricing calculations, VAT billing rules, integrations, product features, full country coverage, and API references. ## API Documentation - [SMS API Specification](https://www.bulksms.com/developer/json/v1/): OpenAPI specification for the BulkSMS REST API. Covers sending, receiving, and managing SMS programmatically. Also available as a Postman collection. - [OpenAPI YAML](https://www.bulksms.com/developer/json/v1/openapi.yaml): Machine-readable OpenAPI spec for the BulkSMS API. ## Products - [SMS API](https://www.bulksms.com/products/sms-api.htm): RESTful HTTP API for programmatic SMS messaging - [BulkSMS Text Messenger](https://www.bulksms.com/products/bulksms-text-messenger.htm): Desktop and mobile app for sending SMS - [Web to SMS](https://www.bulksms.com/products/web-to-sms.htm): Browser-based SMS sending application - [Two-Way SMS](https://www.bulksms.com/features/two-way-sms-messaging.htm): Send and receive SMS with dedicated numbers - [SMS Landing Pages](https://www.bulksms.com/features/sms-landing-