Developer-first

Send your first message in minutes.

One REST call sends an SMS or MMS. Webhooks report every delivery event. SDKs in six languages, full documentation and a sandbox let you test before a single live message goes out.

REST API Python Node.js PHP Java C# Webhooks Sandbox

Read the docs About the API gateway

send-sms.py

import ahoi

# Initialise the client
client = ahoi.Client(api_key="your_api_key")

# Send a message
message = client.messages.create(
    to="+13035550123",
    from_="+13035000999",
    body="Hello from AHOI!",
    campaign="welcome_series"
)

print(message.sid, message.status)

Why business messaging matters

The channel your customers actually read.

Appointment reminders, order updates, two-factor codes, promotions and real-time support all run on SMS today. Text messages carry a 98% open rate and a 45% response rate, far ahead of email and push.

Doing it at scale is hard. Carriers enforce registration, content policies and throughput limits that differ by number type. Get any of it wrong and messages are filtered, numbers suspended, revenue lost. AHOI handles every registration, approval and compliance checkpoint between you and the handset.

Two-way SMS and MMS on short code, 10DLC and toll-free numbers
AI-generated registrations that pass on the first submission
Delivery receipts and status callbacks for every message

Start sending

Northside Dental10DLC · (303) 555-0142

Hi Maria, this is Northside Dental. Your cleaning is tomorrow at 10:00 AM. Reply C to confirm or R to reschedule.

C

Thanks, you're confirmed for Fri 10:00 AM. Reply STOP to opt out.

Can I get directions?

Of course: 1200 Main St, Suite 4. Parking is behind the building.

Delivered · 2 segments · $0.01

Channels

Every channel, one platform.

Short code, 10DLC and toll-free each serve different use cases. AHOI supports all three with full registration, compliance and delivery management.

Short code

Dedicated 5 or 6 digit codes for the highest throughput.

Best forMass marketing, two-factor codes, voting, alerts
ThroughputUp to 500 messages per second
RegistrationApplication and carrier approval managed by AHOI
CoverageUS and Canada, dedicated or shared
ExtrasKeywords, auto-responses, MMS

10DLC

Local 10-digit numbers registered for application-to-person messaging.

Best forTransactional, reminders, customer service, moderate marketing
ThroughputTiered by trust score, up to 75 messages per second
RegistrationBrand and campaign via TCR, AI-built, approved within 24 hours
CoverageAny US area code for local presence
ExtrasLowest per-message cost

Toll-free (8XX)

Verified toll-free numbers with voice and messaging on one number.

Best forNotifications, support conversations, national presence
ThroughputHigh, with carrier-verified sender identity
RegistrationToll-free verification managed by AHOI
CoverageNationwide with trusted 8XX recognition
ExtrasVoice plus SMS and MMS, no per-campaign fees

AI campaign builder

Registration in 24 hours, not weeks.

Our AI application builder analyses your brand, use case and sample messages to generate carrier-optimised applications that pass approval on the first attempt. Long code campaigns go live within a business day.

Smart application generation Pre-submission validation 24-hour long code approval Auto-remediation on flags

Register a campaign

1 Brand registrationEIN verified, brand profile generated Done

2 Campaign applicationAI-optimised use case and sample messages Done

3 TCR submissionSubmitted to The Campaign Registry < 24 hr

4 Carrier approvalT-Mobile, AT&T and Verizon propagation < 24 hr

5 Numbers provisioned10DLC numbers assigned and sending Auto

What we handle for you

Four pillars of professional messaging.

From number provisioning through delivery optimisation, every part of the chain between you and the handset is covered.

Registration & compliance

Every channel requires registration. We run the whole process across all number types and carriers.

10DLC brand and campaign registration (TCR)
Short code application and carrier approval
Toll-free number verification
CTIA and carrier content policy compliance
Opt-in and opt-out workflow configuration

Delivery & routing

Intelligent routing that maximises deliverability across every major carrier in every country you send to.

Direct carrier connections, no aggregator hops
Automatic failover and retry logic
Content-aware routing optimisation
Real-time delivery receipts and status callbacks
Carrier-specific encoding and segment optimisation

Analytics & intelligence

Granular visibility into every message sent, delivered, failed or filtered, with insights to improve performance.

Real-time delivery and engagement dashboards
Carrier-level error code reporting
Opt-out rate tracking and trend analysis
Campaign A/B testing and comparison
Deliverability scoring and health monitoring

Trust & reputation

Protect your sender reputation so messages reach the inbox and not the spam filter.

STIR/SHAKEN attestation for voice and SMS
Proactive spam and filtering monitoring
Trust score optimisation for 10DLC throughput
Pre-send content scanning for policy violations
Carrier relationship management and escalation

Capabilities

Complete messaging capabilities.

Every tool you need to build, send and optimise messaging programs across every channel.

Global SMS delivery200+ countries, automatic encoding

MMS & rich mediaImages, GIFs, video, vCards, PDFs

AI campaign builderFirst-pass 10DLC and toll-free approval

Two-way conversationsKeywords, auto-replies, agent hand-off

Scheduled & triggered sendsTime zones, triggers, send-time optimisation

Real-time analyticsDelivery, clicks, opt-outs, carrier errors

Compliance automationOpt-outs, quiet hours, TCPA records

Campaign managementSegmentation, A/B tests, drip sequences

URL shortening & trackingBranded domains, per-recipient clicks

Contact & list managementDedup, validation, carrier lookup

Number pool managementRotation with sticky sender assignment

API & webhooksSDKs, callbacks, Salesforce, HubSpot, Zapier

Why AHOI messaging

More than an SMS gateway.

The infrastructure, intelligence and compliance management that separates professional messaging operations from basic gateways.

Talk to a messaging specialist

01

Launch in 24 hours

AI-generated registrations pass on the first submission. Go live on 10DLC within a single business day instead of waiting weeks.

02

Industry-leading deliverability

Direct carrier connections, content-aware routing and proactive reputation monitoring keep messages out of the spam filter.

03

All channels, one platform

Short code, 10DLC, toll-free and international SMS through a single API and dashboard. No juggling providers.

04

Built-in compliance

TCPA, CTIA, carrier policies, quiet hours and opt-outs handled automatically. Every message is checked before it sends.

05

Scale without limits

From 100 messages a day to 100 million a month. Throughput, number pools and send rates scale with you.

06

Expert messaging support

Specialists who understand carrier ecosystems, registration and deliverability. Real people who know telecom, not a ticket queue.

Get started

Ready to transform your messaging?

Start building with AHOI's messaging APIs today. We will help you choose the right channels, handle registration and get your first campaign live fast.

Get started Talk to sales

Enterprise-grade messaging at any scale.