v4 API

Blooio API Reference

One HTTP API for iMessage, SMS, RCS, WhatsApp, and Apple Messages for Business. Send and receive messages, manage contacts and chats, run polls and groups, and subscribe to a unified event feed.

Get started Browse the API

Quickstart

Send your first message in minutes.

Authentication

Authenticate with your API key.

Webhooks

Receive events in real time.

API Reference

Every endpoint, generated from the spec.

Send a message

curl -X POST https://api.blooio.com/v4/messages \
  -H "Authorization: Bearer bl_live_..." \
  -H "Content-Type: application/json" \
  -d '{
    "channel_id": "ch_...",
    "to": { "identifier": "+15551234567" },
    "content": { "type": "text", "text": "Hello from Blooio!" }
  }'

Explore the reference

Account

Authenticated account, sender numbers, and contact cards.

Location

Find My friend locations (device passthrough).

Channels

Sending surfaces (iMessage/Blooio, Twilio, WhatsApp, RCS, AMB) and their capabilities.

Contacts

Contacts, their channel identities, capabilities, timeline, and tags.

Chats

Conversations and chat-level actions (typing, read, contact card, background).

Messages

Send messages and read message history, status, events, and reactions.

Polls

Native iMessage polls (Blooio channels).

Groups

Group chats on group-capable channels (Blooio, WhatsApp).

Webhooks

Webhook subscriptions and delivery attempts for inbound + lifecycle events.

Events

Unified activity feed across messages, polls, groups, reactions, and typing.

Phone Numbers

Phone number lookup and geocoding (enterprise plans).