BlueOpen
iMessage API for sales teams

Real iMessages, half the price.

BlueOpen runs a fleet of dedicated iPhones for your business and gives you a clean API to drive them. Real Apple IDs. Real blue bubbles. Built-in retries, failover, and health monitoring.

Start freeRead the docs

$50 per line per month. Half of what SendBlue charges. No per-message fees.

POST /api/messages/send
# Send an iMessage from your dedicated fleet
curl -X POST https://api.theblueopen.com/api/messages/send \
  -H "Authorization: Bearer bk_live_a1b2c3…" \
  -d '{
    "phone": "+15551234567",
    "message": "Hey — got a sec to chat?"
  }'

An open alternative to SendBlue, Twilio, and Bandwidth — built for teams who want to ship fast and pay less.

Comparison

How we stack up.

BlueOpen vs the standard players. Apples to apples.

BlueOpenUs
Channel
Real iMessage
Price per line
$50/mo
Visible iPhone fleet
Sticky contact routing
Auto failover between devices
Background retry queue
Per-device health monitoring
Open API spec (OpenAPI 3.1)
Setup time
5 min
SendBlue
Channel
iMessage relay
Price per line
$100/mo
Visible iPhone fleet
Sticky contact routing
Auto failover between devices
Background retry queue
Per-device health monitoring
Open API spec (OpenAPI 3.1)
Setup time
5 min
Twilio SMS
Channel
SMS only
Price per line
Per-message
Visible iPhone fleet
N/A
Sticky contact routing
Auto failover between devices
Background retry queue
Limited
Per-device health monitoring
N/A
Open API spec (OpenAPI 3.1)
Setup time
2–3 weeks (A2P)

SendBlue and Twilio are trademarks of their respective owners. Comparison reflects publicly stated product capabilities as of 2026.

How it works

From signup to first message in 5 minutes.

No A2P forms. No carrier registration. No middleman relay. Just a real iPhone and a clean REST endpoint.

STEP 01

Sign up

Create an account at theblueopen.com. Your dedicated iPhones get assigned to your tenant within 24 hours.

STEP 02

Add the API key to your stack

Grab your Bearer token from /admin/settings. Drop it into your CRM, lead router, or custom backend.

STEP 03

POST /api/messages/send

One endpoint. Phone + message. We handle device selection, sticky routing, retries, and failover.

Reliability

Production-grade out of the box.

We built the infrastructure your team would have to build anyway.

Smart retries

Inline 4-attempt retries with exponential backoff and ±25% jitter. 15s per-attempt timeout via AbortController. Transient PushCut blips disappear before they reach you.

attempts: 4 · backoff: 250ms → 4s · jitter ±25%

Background retry queue

Terminal failures aren't lost. They enqueue and retry over 24 hours with [5m, 15m, 1h, 4h, 24h] backoff. Your customer's message gets through.

schedule: 5m · 15m · 1h · 4h · 24h

Device health monitoring

Each iPhone in your pool is pinged every 5 minutes. Auto-pause after 3 consecutive failures. Per-device 24h / 7d / 30d uptime visible in your dashboard.

ping: 5m · auto-pause: ≥3 fails or ≥15m down
API

An API you'll actually enjoy.

Bearer auth. JSON in, JSON out. No webhooks to configure to get started.

Request
curl -X POST https://api.theblueopen.com/api/messages/send \
  -H "Authorization: Bearer bk_live_a1b2c3…" \
  -H "Content-Type: application/json" \
  -d '{
    "phone": "+15551234567",
    "message": "Your demo link is ready.",
    "from": "sales-pool"
  }'
Response · 200 OK
{
  "messageId": "msg_01HX7K4Q9PT6V8XJ",
  "deviceId": "dev_iphone14_sales_03",
  "contactId": "ct_2N9b4kY7qR",
  "status": "sent",
  "pinned": true
}

Full OpenAPI 3.1 spec at /api/openapi.json · Live reference at /docs

Pricing

Simple pricing. Half the market.

Per-line monthly fee. 50 new contacts per day per line, unlimited messages to anyone you've already talked to.

Most popular
Standard
$50/ line / month

50 new contacts/day · unlimited replies to existing contacts

Start free →
  • 1 dedicated iPhone, real Apple ID
  • 50 new contacts per day (matches Apple anti-spam threshold)
  • Unlimited replies + follow-ups to existing contacts
  • Built-in retries, queue, failover
  • Per-device health monitoring
  • Full admin dashboard
  • Bearer-authed REST API + OpenAPI 3.1 spec
Enterprise
Custom

For 10+ lines, regulated industries

Talk to sales
  • Volume discounts (10+ lines)
  • SOC 2 / HIPAA pathway
  • Dedicated account manager
  • Custom integrations
  • SLA on uptime + support
  • Per-tenant DB isolation available

No per-message fees. No hidden carrier surcharges. No A2P registration delays.

Stop paying double for the same iMessages.

Get set up in 5 minutes. No credit card. Half the price of SendBlue, with the dashboard you actually want.

Start free