A bulk SMS API lets your application send texts, sync contacts, and react to delivery events without anyone clicking through a dashboard. SESender's REST API gives developers authenticated endpoints for SMS, email, contacts, validation, link tracking, and webhooks, and gives the marketing team the same data in the SESender workspace.
You can send SMS, read message status, manage contacts and segments, validate numbers and emails, create tracked links, send recipients into a FlowForge automation, and register webhooks for message events. The same API key can be used for transactional SMS and for opted-in promotional traffic, with separate senders, templates, and suppression rules. Authenticate every request with Authorization: Bearer YOUR_API_KEY.
API sends use the same plans as the dashboard: Starter is free with 100 SMS and 100 emails a month, Essential is €250/month, Professional is €750/month, and Enterprise Pro is €1,250/month. New accounts include €50 in free credits, and no credit card is required. Each API key is limited per hour by plan: Essential 500 requests, Professional 2,000 requests, and Enterprise Pro 10,000 requests. The Starter plan does not include API access.
You can use the routes on your account or connect TeleSign, SMS Edge, Mobivate, Cloud Talk, Twilio, Nexmo/Vonage, MessageBird, Plivo, Telnyx, AWS SNS, Dynamic Messaging, Sinch, BulkSMS, Mamonty, TextBack, 23 Telecom, MessageWhiz, or Karix. Read the SESender API docs for the full reference. Per-key hourly limits are Essential 500, Professional 2,000, and Enterprise Pro 10,000; the Starter plan does not include API access.
Plans are on the landing page, and per-message SMS rates by country are on the SMS pricing page. Teams that are not integrating in code can use the bulk SMS platform dashboard on the same infrastructure. SMS providers, FlowForge automation, and webhook guides explain routing and delivery events. This public summary for Bulk SMS API for Developers and Messaging Teams is available without signing in or enabling JavaScript.
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