Sendblue
What is Sendblue?
Sendblue is a business messaging platform that provides a REST API for sending and receiving iMessages, RCS, and SMS. It helps developers, sales teams, and companies add native blue-bubble messaging to applications, CRMs, automation workflows, and AI agents. The platform uses automatic iMessage detection with RCS and SMS fallback when recipients are not reachable through iMessage. Its workflow tools support two-way conversations, delivery tracking, rich media, and CRM synchronization. Sendblue differentiates itself through managed iMessage infrastructure, developer SDKs, business integrations, and stated SOC 2 Type II certification with HIPAA support.
How to use Sendblue?
1. Create a Sendblue account and access the free sandbox without adding a credit card. 2. Generate API credentials, choose an SDK or the REST API, and connect Sendblue to your application, CRM, or automation platform. 3. Send a test message to a verified contact, then configure webhooks and upgrade to a dedicated production line when you are ready to launch.
Sendblue's Core Features
REST iMessage API: Send and receive iMessages programmatically from applications, services, and AI agents.
RCS and SMS fallback: Route messages automatically to RCS or SMS when iMessage delivery is unavailable.
Two-way webhooks: Receive inbound messages, delivery confirmations, and read receipts in real time.
Rich media messaging: Deliver images, videos, PDFs, and other files inside customer conversations.
Typing indicators: Display typing activity to create more natural automated messaging experiences.
Group messaging: Create and manage multi-party iMessage conversations through the API.
Contact card sharing: Send vCard files so sales representatives and businesses can share contact details instantly.
Number lookup: Check whether a phone number supports iMessage before selecting the delivery route.
CRM integrations: Connect messaging with GoHighLevel, HubSpot, Salesforce, Close, Monday.com, and other sales systems.
Developer SDKs and CLI: Build and test integrations with official tools for Node.js, Python, cURL, and command-line workflows.
Sendblue's Use Cases
- #1
Developers building AI agents that communicate with customers through iMessage
- #2
Sales teams sending personalized follow-ups from CRM workflows
- #3
Customer support teams routing two-way iMessage conversations into helpdesk systems
- #4
Businesses sending appointment reminders, confirmations, and transactional updates
- #5
Real estate teams sharing property photos, videos, PDFs, and contact cards with prospects
- #6
Marketing teams connecting iMessage campaigns to Zapier, Make, or n8n automations
- #7
SaaS companies embedding blue-bubble messaging into their products without managing Apple hardware
- #8
Operations teams tracking delivery, read receipts, and inbound replies through webhooks
Frequently Asked Questions
Analytics of Sendblue
Monthly Visits Trend: Jun 2025 - Oct 2026
Traffic Sources
Top Regions
| Region | Traffic Share |
|---|---|
| United States | 82.85% |
| Canada | 10.76% |
| India | 1.08% |
| Thailand | 0.99% |
| United Kingdom | 0.75% |
Top Keywords
| Keyword | Traffic | CPC |
|---|---|---|
| sendblue | 24.2K | $15.59 |
| send blue | 4.9K | $22.69 |
| sendinblue | 27.0K | $11.99 |
| sendinblur | 850 | $18.93 |
| imessage api | 3.0K | $28.46 |
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