Sendblue
iMessage for Business — send iMessage, SMS, and RCS from your CRM or via REST API
Sendblue is a messaging platform that lets businesses send iMessage, SMS, and RCS messages from a CRM or through a REST API. It solves the problem of reaching contacts on the channel they actually use, with automatic fallback from iMessage to RCS and then SMS from the same phone number when a recipient does not support iMessage.
The platform offers a shared inbox, workflow builder, smart views, a power dialer, and a click-to-dial Chrome extension. For developers, it provides SDKs for Node.js, Python, cURL, and a CLI, along with webhooks for two-way conversations and delivery receipts. It supports media such as voice memos, videos, and photos, group chats, FaceTime Audio, and contact cards via API. It is SOC 2 Type II certified and offers HIPAA-compliant plans.
Sendblue is for sales, marketing, and developer teams that need personalized, high-volume messaging. It is packaged as a free sandbox for API testing, a flat-rate AI Agent plan per dedicated line for production inbound messaging, and a custom Enterprise edition for outbound teams and high-volume deployments, with volume and annual billing discounts available.
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