Sendblue
Sendblue provides an iMessage-based sales engagement platform that lets sales teams communicate through native blue bubbles, the channel prospects actually check. The platform includes a workflow builder, AI-assisted follow-ups, a shared inbox, and a CLI tool for scriptable messaging from the terminal. It delivers real iMessages through Apple's protocol with automatic fallback to RCS and SMS.
- Sales Technology
- AI Agents
- Software Only
- Artificial Intelligence
Funding
Raised to date
$500KRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
Founders
Founder details are not available yet.
Product
Problem
Sales teams struggle to get responses from prospects through traditional channels like email and SMS, which are built for alerts rather than relationship-building. This results in low engagement rates and missed opportunities for building customer relationships and closing deals.
Solution
Sendblue provides an iMessage-based sales engagement platform that lets sales teams communicate through native blue bubbles—the channel users actually check. The platform includes a workflow builder that combines automation with personalization, AI-assisted follow-ups, and a shared inbox that serves as an operating system for modern sales teams. An AI agent capability allows assistants to book flights, reply to inboxes, and run errands over iMessage. The platform also offers a command-line interface that enables sending real iMessages from the terminal, with features like group threads, typing indicators, and media attachments, making it scriptable for AI agents, support workflows, and cron-driven reminders. Messages are delivered through Apple's iMessage protocol with automatic fallback to RCS and then SMS when recipients don't have iMessage enabled.
Target Audience
Primary customers are high-performing sales teams and revenue organizations that need a more responsive communication channel for prospecting and follow-ups, as well as developers and AI agents that need a scriptable iMessage endpoint for automated messaging workflows.
Features
- Workflow Builder for automating follow-ups at the intersection of automation and personalization
- AI agents that can book flights, reply to inboxes, and run errands over iMessage
- Smart Views and Power Dialer for organizing and connecting with the right people faster
- CLI tool (@sendblue/cli) that provisions iMessage numbers, sends messages, manages contacts, and configures webhooks from the terminal
- Real iMessage delivery through Apple's protocol (not gateway SMS) with group threads, typing indicators, and media attachments
- Webhooks for inbound messages (receive, outbound, call_log, line_blocked, line_assigned, contact_created events)
- TOTP storage for 2FA codes, enabling agents to log into tools on behalf of users
- Automatic SMS fallback when the recipient does not have iMessage enabled
- FaceTime Audio support for voice calls from the same iMessage number
- SOC 2 Type II certified and HIPAA compliant with end-to-end encryption