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Lineserve Messaging Services

Multi-Channel Messaging Platform for Business Communication

Connect with customers through SMS, WhatsApp, and mobile services. Powerful APIs, competitive rates, and reliable delivery from African data centers.

99.95%
Uptime
195
Countries
98.5%
Delivery
2-5 seconds
Avg Time

Trusted by 2,500+ businesses for reliable messaging

What is Lineserve Messaging?

Lineserve Messaging provides enterprise-grade messaging infrastructure with direct carrier connections across 195 countries. Send transactional SMS, marketing campaigns, and customer notifications with industry-leading delivery rates and ultra-low latency. Built for African businesses with local expertise and regulatory compliance.

Global Reach

Send messages to 195 countries with direct carrier connections

Ultra-Low Latency

Average delivery time of 2-5 seconds for instant communication

Enterprise Security

Bank-grade security with end-to-end encryption and compliance certifications

Developer-Friendly API

RESTful API with SDKs in 7 languages and comprehensive documentation

Real-Time Analytics

Track delivery rates, engagement metrics, and campaign performance

Multi-Channel

SMS, WhatsApp, and more messaging channels from a single platform

50M+
Messages/Month
195
Countries
98.5%
Delivery Rate
2-5 seconds
Avg Delivery
2,500+
Customers

Service Overview

Comprehensive messaging solutions for every business need

Bulk SMS

Available

Send SMS messages to customers worldwide with our reliable bulk SMS API service.

Key Features:

  • Global SMS delivery to 200+ countries
  • REST API integration
  • Real-time delivery reports
  • Two-way messaging support
160 chars (GSM) | 70 chars (Unicode)

Flexible Pricing Tiers

Choose the plan that fits your messaging volume. All plans include our full feature set.

Pay As You Go

No commitment, pay per message

0 - 10,000 messages/month
No monthly commitment
Pay per message
All features included
Email support
Recommended

Starter

For growing businesses

5% OFF
10,000 - 100,000 messages/month
Min. commitment: 10,000 messages
5% volume discount
Minimum 10K messages/month
Priority support
Dedicated account manager
Custom sender IDs

Business

For established businesses

10% OFF
100,000 - 1,000,000 messages/month
Min. commitment: 100,000 messages
10% volume discount
Minimum 100K messages/month
24/7 priority support
Multiple sender IDs
Advanced analytics
API rate limit increase

Enterprise

Custom solutions for large organizations

15% OFF
1,000,000+ messages/month
Min. commitment: 1,000,000 messages
15% volume discount
Minimum 1M messages/month
Dedicated infrastructure
Custom integrations
SLA guarantees
On-premise deployment options

All prices shown are per message. Volume discounts applied automatically.

SMS Pricing by Country

Transparent pricing for 195 countries worldwide

Country & Network Pricing

CountryNetworkMarket SharePrice/SMSDelivery TimeDelivery Rate
Kenya
KE
Safaricom
62%
$0.012-5 seconds
98.5%
Airtel Kenya
23%
$0.01
Telkom Kenya
8%
$0.01
Nigeria
NG
MTN Nigeria
35%
$0.002-8 seconds
97.8%
Airtel Nigeria
27%
$0.00
Glo Mobile
23%
$0.01
9mobile
12%
$0.01
Tanzania
TZ
Vodacom Tanzania
32%
$0.013-6 seconds
97.5%
Airtel Tanzania
28%
$0.01
Tigo Tanzania
25%
$0.01
Halotel Tanzania
11%
$0.01
Uganda
UG
MTN Uganda
51%
$0.012-5 seconds
98%
Airtel Uganda
39%
$0.01
Rwanda
RW
MTN Rwanda
58%
$0.012-5 seconds
98.2%
Airtel Rwanda
38%
$0.01
Ghana
GH
MTN Ghana
48%
$0.013-7 seconds
97.2%
Vodafone Ghana
24%
$0.01
AirtelTigo Ghana
23%
$0.01
South Africa
ZA
Vodacom
40%
$0.011-4 seconds
99%
MTN
32%
$0.01
Cell C
17%
$0.01
India
IN
Airtel
32%
$0.002-10 seconds
96.5%
Jio
36%
$0.00
Vi (Vodafone Idea)
23%
$0.00
Pakistan
PK
Jazz
38%
$0.003-8 seconds
96.8%
Telenor
27%
$0.01
Bangladesh
BD
Grameenphone
46%
$0.013-10 seconds
95.5%
Robi
30%
$0.01
United Kingdom
GB
EE
32%
$0.011-3 seconds
99.2%
Vodafone UK
24%
$0.01
O2 UK
27%
$0.01
Germany
DE
Telekom
36%
$0.011-3 seconds
99.1%
Vodafone DE
30%
$0.01
O2 Germany
26%
$0.01
France
FR
Orange
38%
$0.011-3 seconds
99%
SFR
25%
$0.01
Bouygues
18%
$0.01
United States
US
Verizon
32%
$0.011-5 seconds
99.3%
AT&T
31%
$0.01
T-Mobile
28%
$0.01
Brazil
BR
Vivo
33%
$0.012-8 seconds
97.5%
Claro
26%
$0.01
TIM Brasil
23%
$0.01

Note: Prices shown are per SMS segment (160 characters for GSM, 70 for Unicode). Volume discounts apply automatically based on your tier.

Pricing Calculator

Estimate your monthly messaging costs

Calculate Your Costs

1K1M
Selected Tier:Starter
Volume Discount:5%
Avg. Price per SMS:$0.01
Monthly Cost:$332.50

You save $17.50/month with this tier!

Prices are estimates. Actual costs may vary based on destination mix and message types.

API Code Examples

Get started quickly with our simple, developer-friendly API

Send SMS

Send a single SMS message

curl -X POST https://api.lineserve.net/v1/sms/send \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "to": "+254712345678",
    "from": "YourBrand",
    "message": "Hello from Lineserve Messaging!",
    "callback_url": "https://yourapp.com/webhook"
  }'

Send Bulk SMS

Send SMS to multiple recipients

curl -X POST https://api.lineserve.net/v1/sms/bulk \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "messages": [
      {
        "to": "+254712345678",
        "from": "YourBrand",
        "message": "Hello John!"
      },
      {
        "to": "+254798765432",
        "from": "YourBrand",
        "message": "Hello Jane!"
      }
    ]
  }'

Check Account Balance

Get current account balance

curl -X GET https://api.lineserve.net/v1/account/balance \
  -H "Authorization: Bearer YOUR_API_KEY"

Delivery Report Webhook

Example webhook payload for delivery receipt

{
  "event": "sms.delivered",
  "message_id": "msg_1a2b3c4d5e6f",
  "to": "+254712345678",
  "from": "YourBrand",
  "status": "delivered",
  "status_code": "DELIVRD",
  "timestamp": "2024-01-08T10:30:00Z",
  "network": "Safaricom",
  "cost": 0.65,
  "currency": "KES",
  "parts": 1
}

Authentication Flow

Simple and secure API authentication in three steps

Generate API Key

Create your API key from the dashboard with custom permissions and scopes

Secure Your Key

Store your API key securely using environment variables or secret management

Authenticate Requests

Include your API key in the Authorization header for all API requests

Example Authentication

# Using Bearer Token Authentication
curl -X POST https://api.lineserve.net/v1/sms/send \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"to": "+254712345678", "from": "YourBrand", "message": "Hello!"}'

# Response
{
  "message_id": "msg_1a2b3c4d5e6f",
  "status": "accepted",
  "to": "+254712345678",
  "cost": 0.65,
  "currency": "KES"
}

Security Best Practices

  • • Never expose API keys in client-side code or public repositories
  • • Use environment variables to store sensitive credentials
  • • Rotate API keys regularly and revoke unused keys
  • • Set IP whitelist restrictions for production keys
  • • Use separate keys for development, staging, and production

Webhook Documentation

Real-time delivery reports and status updates via webhooks

Webhook Events

sms.accepted

Message accepted for delivery

sms.delivered

Message delivered successfully

sms.failed

Message delivery failed

sms.pending

Message pending delivery

Example Webhook Payload

{
  "event": "sms.delivered",
  "message_id": "msg_1a2b3c4d5e6f",
  "to": "+254712345678",
  "from": "YourBrand",
  "status": "delivered",
  "status_code": "DELIVRD",
  "timestamp": "2024-01-08T10:30:00Z",
  "network": "Safaricom",
  "cost": 0.65,
  "currency": "KES",
  "parts": 1
}

Webhook Setup Guide

1. Configure Your Webhook URL

Set your webhook endpoint URL in the dashboard or include it in your API request with thecallback_url parameter.

2. Verify Webhook Signatures

All webhooks include an X-Lineserve-Signatureheader for verification. Use your webhook secret to validate the signature.

3. Handle Webhook Events

Process webhook events in your application and return a 200 OK response within 5 seconds. Failed webhooks are retried up to 3 times with exponential backoff.

API Integration Guide

Get up and running in less than 30 minutes

Integration Steps

1

Sign Up & Get API Key

~2 minutes

Create a free account and generate your API key from the dashboard

2

Install SDK (Optional)

~1 minute

Install our official SDK for your preferred language or use direct HTTP requests

3

Send Your First SMS

~5 minutes

Make your first API call to send a test message using sandbox mode

4

Configure Webhooks

~10 minutes

Set up webhook endpoints to receive delivery reports and status updates

5

Go Live

~5 minutes

Add credits to your account and start sending messages in production

Comprehensive Documentation

Detailed API reference with examples in 7+ languages

Official SDKs

Libraries for PHP, Python, Node.js, Java, C#, Go, and Ruby

Quick Start Guides

Step-by-step tutorials for common use cases and integrations

Sandbox Environment

Test your integration with free sandbox credits before going live

Need Help?

Our technical team is available 24/7 to help with your integration. We also offer free integration support for Enterprise customers.

  • • View full API documentation at docs.lineserve.net
  • • Join our developer community on Discord
  • • Contact [email protected] for technical assistance
  • • Book a free integration consultation call

Global Coverage

Reach customers in 195 countries with our extensive carrier network

195
Countries Covered
450+
Direct Carrier Connections
98.5%
Average Delivery Rate

Regional Coverage

Africa

54
Direct carrier connections

Asia

3
Major networks covered

Europe

3
Premium delivery

Americas

2
Full coverage

Oceania

8
Complete coverage

Interactive world map visualization (placeholder)

Country Coverage Details

Detailed coverage information for all supported countries

Supported Countries

CountryCodeRegionNetworksDelivery TimeDelivery Rate
Kenya
KE
Africa3 carriers2-5 seconds
98.5%
Nigeria
NG
Africa4 carriers2-8 seconds
97.8%
Tanzania
TZ
Africa4 carriers3-6 seconds
97.5%
Uganda
UG
Africa2 carriers2-5 seconds
98%
Rwanda
RW
Africa2 carriers2-5 seconds
98.2%
Ghana
GH
Africa3 carriers3-7 seconds
97.2%
South Africa
ZA
Africa3 carriers1-4 seconds
99%
India
IN
Asia3 carriers2-10 seconds
96.5%
Pakistan
PK
Asia2 carriers3-8 seconds
96.8%
Bangladesh
BD
Asia2 carriers3-10 seconds
95.5%
United Kingdom
GB
Europe3 carriers1-3 seconds
99.2%
Germany
DE
Europe3 carriers1-3 seconds
99.1%
France
FR
Europe3 carriers1-3 seconds
99%
United States
US
Americas3 carriers1-5 seconds
99.3%
Brazil
BR
Americas3 carriers2-8 seconds
97.5%
Showing 15 of 195 countries

Carrier Partnerships

Direct connections with 450+ mobile networks worldwide

450+
Direct Carrier Connections
98.5%
Average Delivery Rate
2-5 seconds
Average Delivery Time

Major Carrier Partners

Safaricom
Kenya
62%
MTN Rwanda
Rwanda
58%
MTN Uganda
Uganda
51%
MTN Ghana
Ghana
48%
Grameenphone
Bangladesh
46%
Vodacom
South Africa
40%
Airtel Uganda
Uganda
39%
Airtel Rwanda
Rwanda
38%
Jazz
Pakistan
38%
Orange
France
38%
Jio
India
36%
Telekom
Germany
36%

Why Direct Carrier Connections Matter

  • • Higher delivery rates compared to aggregator routes
  • • Lower latency with direct network access
  • • Better pricing through direct negotiations
  • • Real-time delivery reports from carriers
  • • Enhanced reliability and message quality

Sender ID Guidelines

Country-specific requirements for sender ID registration and usage

Sender ID Rules by Country

CountryAlphanumericRegistrationRegulatory BodyApproval TimeMax Length
Kenya
KE
Required
Communications Authority of Kenya (CA)
2-3 business days
11 chars
Nigeria
NG
Required
Nigerian Communications Commission (NCC)
5-7 business days
11 chars
Tanzania
TZ
Required
Tanzania Communications Regulatory Authority (TCRA)
3-5 business days
11 chars
United States
US
Required
The Campaign Registry
7-10 business days
10 chars
United Kingdom
GB
Optional
N/A
Instant
11 chars

Best Practices

  • • Use your brand name for better recognition
  • • Keep sender IDs between 3-11 characters
  • • Avoid special characters and numbers in alphanumeric IDs
  • • Register sender IDs in advance for better delivery rates
  • • Use consistent sender IDs across campaigns
  • • Have backup numeric sender IDs for countries that require them

Common Restrictions

  • • Cannot impersonate government entities
  • • No offensive or inappropriate language
  • • Business documentation required for registration
  • • Some countries only allow numeric sender IDs
  • • Sender IDs cannot be changed after registration in some regions
  • • Shared sender IDs may have lower delivery rates

Need Help with Sender ID Registration?

Our team can handle the entire sender ID registration process for you, including:

  • • Document preparation and submission
  • • Regulatory compliance verification
  • • Direct communication with regulatory bodies
  • • Status tracking and expedited processing

Compliance & Certifications

Meeting the highest standards for security, privacy, and regulatory compliance

GDPR Compliant

Full GDPR compliance with data residency options in African data centers

Kenya CA Licensed

Licensed by the Communications Authority of Kenya for bulk SMS services

Certification Number
CA/BULK/2024/0156
Issued by: Communications Authority of Kenya

NCC Approved

Approved by Nigerian Communications Commission for messaging services

Issued by: Nigerian Communications Commission

ISO 27001

Information security management system certification

Certification Number
ISO 27001:2013

DND Registry Integration

Automatic filtering against Do Not Disturb registries in Kenya and Nigeria

Our Commitment to Compliance

Data Protection

  • • GDPR compliant with EU data protection standards
  • • Data residency options in African data centers
  • • Compliance with Kenya Data Protection Act 2019
  • • Nigeria Data Protection Regulation (NDPR) compliant
  • • End-to-end encryption for all data in transit

Messaging Compliance

  • • TCPA compliance for US messaging
  • • Automatic DND registry filtering
  • • Opt-out management and keyword handling
  • • Licensed by Communications Authority of Kenya
  • • Approved by Nigerian Communications Commission

Regular Audits & Updates

We undergo regular third-party audits and continuously update our systems to maintain compliance with evolving regulations. All certifications are renewed on schedule, and we proactively adapt to new regulatory requirements across all markets we serve.

Opt-In/Opt-Out Management

Comprehensive tools for managing subscriber preferences and maintaining compliance

Automatic Opt-Out

Automatically process STOP, UNSUBSCRIBE, and similar keywords

  • Support for multiple opt-out keywords
  • Instant opt-out processing
  • Confirmation messages sent automatically
  • Maintains opt-out list per sender ID

Opt-In Management

Track and manage user consent for marketing messages

  • Double opt-in support
  • Consent timestamp tracking
  • Source attribution
  • Compliance-ready audit logs

Preference Center

Allow subscribers to manage their communication preferences

  • Customize message frequency
  • Select message categories
  • Update contact information
  • Pause subscriptions temporarily

Compliance Tracking

Built-in tools to maintain regulatory compliance

  • Opt-in/opt-out audit trails
  • Consent documentation
  • Compliance reports
  • Automated suppression list management

Supported Opt-Out Keywords

English

STOPUNSUBSCRIBECANCELENDQUITOPT-OUT

French

STOPANNULERFINDESABONNER

Custom

Configure custom opt-out keywords specific to your campaign or region

API-Based Opt-Out Management

Integrate opt-out management directly into your application using our API:

// Add to opt-out list
POST /v1/opt-out/add
{
  "phone": "+254712345678",
  "sender_id": "YourBrand",
  "reason": "user_request"
}

// Check opt-out status
GET /v1/opt-out/check?phone=+254712345678&sender_id=YourBrand

DND Registry Integration

Automatic filtering against Do Not Disturb registries to ensure compliance

100%
Automatic DND Filtering
Real-time
Registry Validation
Zero
Compliance Violations

Supported DND Registries

Kenya

(CA Kenya DND Registry)

Automatic filtering against Communications Authority DND list

Nigeria

(NCC DND Registry)

Real-time validation against Nigerian DND database

India

(TRAI NCPR)

National Consumer Preference Registry integration

South Africa

(POPI Act Registry)

Compliance with Protection of Personal Information Act

How It Works

  1. 1
    Upload Recipients

    Submit your contact list via API or dashboard

  2. 2
    Automatic Validation

    Numbers are checked against applicable DND registries

  3. 3
    Smart Filtering

    DND numbers are filtered out for promotional messages

  4. 4
    Detailed Reports

    Get reports on filtered numbers and reasons

Message Types & DND

Promotional Messages

Filtered against DND registry. Requires explicit opt-in.

Transactional Messages

Exempt from DND filtering. Includes OTPs, order updates, alerts.

Service Messages

Not filtered. Account notifications and service updates.

Important Notice

Sending promotional messages to DND-registered numbers can result in significant fines and account suspension. Our automatic filtering protects you from compliance violations, but you remain responsible for obtaining proper consent and maintaining your own suppression lists.

Powerful Features

Everything you need to build engaging messaging experiences

Message Scheduling

Schedule messages for future delivery with timezone support

Contact List Management

Import, segment, and manage contact databases with custom fields

Real-Time Analytics

Delivery reports, engagement metrics, and campaign ROI tracking

Message Templates

Pre-approved templates with dynamic merge fields

Personalization

Dynamic merge fields for first name, company, custom data

URL Shortening & Tracking

Branded short links with click tracking and analytics

Campaign Management

Multi-channel campaigns with A/B testing capabilities

REST API & Webhooks

RESTful API with real-time webhook callbacks for delivery reports

Two-Way Messaging

Receive and process incoming SMS replies from customers

Automated Opt-Out

Automatic handling of STOP, UNSUBSCRIBE keywords

DND Registry Filtering

Automatic filtering against Do Not Disturb registries

Unicode Support

Send messages in any language with full Unicode support

Message Scheduling

Send messages at the perfect time with advanced scheduling capabilities

Schedule Messages

Schedule messages up to 6 months in advance for one-time or recurring campaigns

Timezone Support

Send messages at optimal times in recipients local timezones automatically

Recurring Campaigns

Set up daily, weekly, or monthly recurring message campaigns with ease

Smart Delivery

AI-powered delivery time optimization based on recipient engagement patterns

Example: Schedule SMS via API

POST /v1/sms/send
{
  "to": "+254712345678",
  "from": "YourBrand",
  "message": "Flash Sale starts in 1 hour! 50% off everything!",
  "scheduled_at": "2024-01-15T09:00:00Z",
  "timezone": "Africa/Nairobi",
  "repeat": {
    "frequency": "weekly",
    "day_of_week": "monday",
    "end_date": "2024-12-31"
  }
}

Use Cases

  • • Birthday and anniversary greetings
  • • Appointment reminders 24 hours in advance
  • • Weekly promotion campaigns
  • • Payment due date reminders
  • • Event notifications and countdowns
  • • Subscription renewal alerts

Best Practices

  • • Send messages during business hours (8 AM - 8 PM)
  • • Respect recipient timezone preferences
  • • Avoid scheduling on holidays and weekends
  • • Test scheduled messages in sandbox first
  • • Monitor and adjust based on engagement metrics
  • • Keep a buffer time for last-minute changes

Contact List Management

Powerful tools to organize, segment, and manage your contact database

Import Contacts

Upload contacts via CSV, Excel, or API with automatic validation and deduplication

  • CSV/Excel file upload
  • API bulk import
  • Custom field mapping
  • Automatic phone validation
  • Duplicate detection

Advanced Segmentation

Create targeted segments based on demographics, behavior, and custom attributes

  • Filter by location
  • Behavioral segmentation
  • Custom field filters
  • Dynamic segments
  • Saved segment templates

Custom Fields & Tags

Organize contacts with unlimited custom fields and tags for personalization

  • Unlimited custom fields
  • Multi-select tags
  • Hierarchical categories
  • Bulk tagging operations
  • Field-based automation

List Management

Maintain multiple contact lists with subscription and preference management

  • Multiple contact lists
  • Subscription preferences
  • Cross-list deduplication
  • List hygiene tools
  • Export and backup

Example: Import & Segment Contacts

// Import contacts with custom fields
POST /v1/contacts/import
{
  "list_id": "list_abc123",
  "contacts": [
    {
      "phone": "+254712345678",
      "first_name": "John",
      "last_name": "Doe",
      "email": "[email protected]",
      "custom_fields": {
        "city": "Nairobi",
        "membership_tier": "gold",
        "signup_date": "2024-01-01"
      },
      "tags": ["vip", "active"]
    }
  ]
}

// Create dynamic segment
POST /v1/segments/create
{
  "name": "Nairobi Gold Members",
  "filters": {
    "custom_fields.city": "Nairobi",
    "custom_fields.membership_tier": "gold",
    "tags": ["active"]
  }
}

Contact Data Security

All contact data is encrypted at rest and in transit. We comply with GDPR, CCPA, and local data protection regulations. You maintain full ownership of your contact data and can export or delete it at any time.

Analytics Dashboard

Comprehensive insights into your messaging performance and ROI

Total Messages

1.2M

+15% vs last month

Delivery Rate

98.5%

+2.1% vs last month

Click Rate

12.3%

+3.4% vs last month

Total Spent

$4,523

+8% vs last month

Avg Delivery

2.5s

-0.3s vs last month

Campaigns

47

+12 vs last month

Dashboard Features

  • Real-time delivery tracking
  • Campaign performance metrics
  • Engagement analytics (opens, clicks)
  • Cost analysis and ROI tracking
  • Geographic distribution reports
  • Time-based performance insights
  • Carrier-level analytics
  • Custom report generation

Dashboard Preview

Interactive analytics dashboard (placeholder)

Export & Reporting

Scheduled Reports

Automatically email reports daily, weekly, or monthly to your team

Custom Exports

Export data to CSV, Excel, or PDF with custom date ranges and filters

API Access

Pull analytics data via API to integrate with your BI tools

Message Templates

Create reusable message templates with dynamic variables for personalization

Unlimited
Message Templates
Dynamic
Merge Variables
Pre-approved
Template Library
Copy & Reuse
Across Campaigns

Template Examples

Welcome Message

Hi {{first_name}}, welcome to {{company_name}}! Your account is now active.
first_namecompany_name

OTP Verification

Your verification code is {{otp_code}}. Valid for {{expiry_minutes}} minutes.
otp_codeexpiry_minutes

Appointment Reminder

Hi {{first_name}}, reminder: Your appointment is on {{date}} at {{time}}.
first_namedatetime

Using Templates via API

POST /v1/sms/send
{
  "to": "+254712345678",
  "template_id": "welcome_message",
  "variables": {
    "first_name": "John",
    "company_name": "Acme Corp"
  }
}

Template Features

  • • Unlimited custom variables
  • • Conditional content blocks
  • • Multi-language support
  • • Version control and rollback
  • • Template approval workflow
  • • A/B testing capabilities
  • • Character count optimization
  • • Preview before sending

Pre-Built Template Library

Access our library of 50+ pre-approved message templates for common use cases including OTPs, appointment reminders, order confirmations, promotional offers, and more. All templates are optimized for deliverability and compliance.

URL Shortening & Click Tracking

Shorten links and track every click with detailed analytics

Auto
Link Shortening
Real-time
Click Tracking
Detailed
Analytics Reports
Custom
Branded Domains

How It Works

1. Automatic Shortening

Long URLs in your messages are automatically shortened to save characters and improve deliverability.

2. Click Tracking

Every click is tracked with timestamp, device info, location, and referrer data.

3. Campaign Attribution

Track which campaigns, messages, and segments drive the most clicks and conversions.

4. Retargeting

Build retargeting audiences based on click behavior for follow-up campaigns.

Click Analytics

Total Clicks
2,547
Click-Through Rate
12.3%
Unique Clickers
1,892

Example: Send Message with Tracked Link

POST /v1/sms/send
{
  "to": "+254712345678",
  "from": "YourBrand",
  "message": "Check out our new products: https://yourwebsite.com/products",
  "shorten_urls": true,
  "track_clicks": true,
  "utm_params": {
    "source": "sms",
    "medium": "messaging",
    "campaign": "spring_sale_2024"
  }
}

// Response
{
  "message_id": "msg_abc123",
  "shortened_url": "https://ln.ks/abc123",
  "original_url": "https://yourwebsite.com/products"
}

Features

  • • Automatic URL shortening
  • • Real-time click tracking
  • • Custom branded domains
  • • UTM parameter support
  • • Click heatmaps by time/location
  • • Device and browser analytics
  • • A/B testing with multiple URLs
  • • Export click data to CSV

Custom Branded Domains

Use your own domain for shortened links to build trust and improve click rates:

Default
https://ln.ks/abc123
Custom Domain
https://go.yourbrand.com/spring

Campaign Management

Create, manage, and optimize multi-channel messaging campaigns

Multi-Channel
Campaign Builder
Segmented
Audience Targeting
A/B Testing
Campaign Optimization
Automated
Triggered Campaigns

Campaign Types

One-Time Campaigns

Send promotional messages, announcements, or updates to your audience once

  • • Product launches
  • • Flash sales
  • • Event announcements
  • • Company updates

Recurring Campaigns

Automatically send messages on a schedule (daily, weekly, monthly)

  • • Weekly newsletters
  • • Monthly statements
  • • Daily tips & quotes
  • • Regular promotions

Triggered Campaigns

Automatically send based on user actions or events

  • • Welcome series
  • • Abandoned cart
  • • Birthday wishes
  • • Re-engagement

A/B Testing

Test different message variations to optimize your campaigns:

Variant A (50%)
"Flash Sale: 50% off today only! Shop now: [link]"
Variant B (50%)
"Limited time: Half price on everything. Don't miss out! [link]"
Automatically select the winning variant based on clicks or conversions

Campaign Automation

Drip Campaigns

Automated message sequences sent over time based on user behavior

Behavioral Triggers

Send messages based on website visits, purchases, or custom events

Time-Based Rules

Schedule campaigns based on timezone, days of week, or specific dates

Campaign Analytics

Messages Sent
125,432
Delivery Rate
98.5%
Click Rate
12.3%
Conversion Rate
3.8%

Campaign Best Practices

  • • Segment your audience for targeted messaging
  • • Test subject lines and message content with A/B testing
  • • Send messages at optimal times based on engagement data
  • • Monitor campaign performance and adjust strategy accordingly
  • • Always include an opt-out option for promotional campaigns
  • • Use personalization variables to increase engagement

Integration Ecosystem

Connect with your favorite tools and platforms

CRM

Salesforce
Available
HubSpot
Available
Zoho CRM
Available
Pipedrive
Available

E-commerce

Shopify
Available
WooCommerce
Available
Magento
Available
PrestaShop
Available

Automation

Zapier
Available
Make (Integromat)
Available
n8n
Available

Marketing

Mailchimp
Available
ActiveCampaign
Available

Custom Integrations

RESTful API

Integrate with any platform using our comprehensive REST API

  • • Complete API documentation
  • • OpenAPI/Swagger specs
  • • Postman collections
  • • Code examples in 7+ languages

Webhooks

Receive real-time events and delivery reports via webhooks

  • • Delivery status updates
  • • Incoming message events
  • • Opt-out notifications
  • • Webhook signature verification

Need a Custom Integration?

Our team can help build custom integrations for enterprise customers. Contact our solutions team to discuss your specific integration requirements.

Official SDKs & Libraries

Get started quickly with our official SDKs for your preferred language

PHP

lineserve/messaging-php
Available
Installation
composer require lineserve/messaging-php

Python

lineserve-messaging
Available
Installation
pip install lineserve-messaging

Node.js

@lineserve/messaging
Available
Installation
npm install @lineserve/messaging

Java

com.lineserve.messaging
Available

C#

Lineserve.Messaging
Available
Installation
dotnet add package Lineserve.Messaging

Go

github.com/lineserve/messaging-go
Available
Installation
go get github.com/lineserve/messaging-go

Ruby

lineserve-messaging
Available
Installation
gem install lineserve-messaging

Quick Start Example

Python

pip install lineserve-messaging

from lineserve import Messaging

client = Messaging(api_key="YOUR_API_KEY")

response = client.sms.send(
    to="+254712345678",
    sender_id="YourBrand",
    message="Hello from Lineserve!"
)

print(response.message_id)

Node.js

npm install @lineserve/messaging

const Lineserve = require('@lineserve/messaging');

const client = new Lineserve({
  apiKey: process.env.LINESERVE_API_KEY
});

const response = await client.sms.send({
  to: '+254712345678',
  from: 'YourBrand',
  message: 'Hello from Lineserve!'
});

console.log(response.messageId);

Easy Installation

Install via your package manager with a single command

Full Documentation

Complete API reference and code examples for every SDK

Open Source

All SDKs are open source on GitHub with active maintenance

Community SDKs

In addition to our official SDKs, the community has created libraries for additional languages including Rust, Swift, Kotlin, and more. Visit our GitHub organization to explore community-maintained SDKs.

SMS Technical Specifications

Detailed technical specifications for SMS messaging

Message Encoding

EncodingChar LimitDescription
GSM-7160Standard English characters
Unicode (UCS-2)70Emoji, Arabic, Chinese, etc.

GSM-7 Character Set

a-z A-Z 0-9 @ £ $ ¥ è é ù ì ò Ç Ø ø Å å Δ _ Φ Γ Λ Ω Π Ψ Σ Θ Ξ Æ æ ß É ! " # ¤ % & ' ( ) * + , - . / : ; < = > ? ¡ Ä Ö Ñ Ü § ¿ ä ö ñ ü à

Message Concatenation

PartsGSM-7Unicode
1 Part160 chars70 chars
2 Parts306 chars134 chars
3 Parts459 chars201 chars
Max (6 Parts)918 chars402 chars
Note: Concatenated messages use 153 chars (GSM-7) or 67 chars (Unicode) per part due to header overhead.

API Specifications

Rate Limits

  • • Default: 100 req/sec
  • • Business: 500 req/sec
  • • Enterprise: Custom limits
  • • Burst: 2x sustained rate

Delivery Reports

  • • Real-time webhooks
  • • Delivery receipt (DLR)
  • • Status codes
  • • Timestamp tracking

Message Validity

  • • Default: 48 hours
  • • Configurable: 5 min - 72 hrs
  • • Auto retry on temp failure
  • • Exponential backoff

Sender ID Types

Alphanumeric

Use your brand name as sender ID (3-11 characters)

YourBrand

Supported in most countries, registration may be required

Numeric (Long Code)

Full phone number format, supports two-way messaging

+254712345678

Required in US, supports replies

Short Code

Dedicated 5-6 digit number for high volume

22345

Premium option, requires provisioning

Important Notes

  • • Messages are charged per segment. A 200-character message counts as 2 segments.
  • • Using Unicode (emoji, special characters) reduces character limit to 70 per segment.
  • • Delivery rates vary by country and carrier. Check country-specific rates above.
  • • Some special characters in GSM-7 count as 2 characters: | ^ € [ ] ~ \

Use Cases

Perfect for a wide range of applications and industries

Receipt

Transactional SMS

Send OTPs, order confirmations, delivery updates, payment alerts, and account notifications

E-commerceBankingFintechLogistics
Megaphone

Marketing Campaigns

Promotional offers, product launches, flash sales, event invitations, and seasonal campaigns

RetailHospitalityEntertainmentReal Estate
Headphones

Customer Support

Support ticket updates, service notifications, feedback requests, and help desk automation

SaaSTelecommunicationsHealthcare
Calendar

Appointment Reminders

Reduce no-shows with automated appointment reminders and confirmation requests

HealthcareSalons & SpasProfessional Services
AlertTriangle

Critical Alerts

System alerts, security notifications, fraud detection, and emergency communications

BankingSecurityIT Services
ShieldCheck

2FA & OTP

Two-factor authentication, one-time passwords, and account verification codes

BankingSaaSE-commerceGovernment

Trusted by Businesses Worldwide

Join thousands of businesses that rely on Lineserve for their messaging needs

50M+
Messages Per Month
2,500+
Active Customers
195
Countries Covered
99.95%
Platform Uptime
98.5%
Average Delivery Rate
2-5 seconds
Average Delivery Time
450+
Direct Carrier Connections

What Our Customers Say

Don't just take our word for it - hear from businesses using Lineserve Messaging

“Lineserve Messaging has transformed how we communicate with our customers. The delivery rates are exceptional, and the API is incredibly easy to integrate.”

James Mwangi
CTO
TechHub Kenya

“We switched from our previous provider and immediately saw a 15% improvement in delivery rates. The cost savings alone paid for the migration.”

Ngozi Okonkwo
Head of Marketing
RetailMax Nigeria

“The support team is fantastic. They helped us set up sender IDs across 5 African countries and were with us every step of the way.”

Sarah Johnson
Product Manager
FinanceApp

“Being able to send transactional messages in under 3 seconds has been game-changing for our OTP delivery. Our customers love the speed.”

David Kamau
Engineering Lead
SecureBank

Trusted by Leading Brands

From startups to enterprise, businesses choose Lineserve for reliable messaging

TechHub Kenya
RetailMax Nigeria
FinanceApp
SecureBank
E-Commerce Plus
HealthCare Solutions
Logistics Pro
Education Portal
Travel Connect
Food Delivery Co
Real Estate Hub
Insurance Direct

And 2,500+ more businesses across Africa and beyond

24/7 Customer Support

Get help when you need it through multiple support channels

Email Support

Response time: <15 minutes

[email protected]
24/7

Live Chat

Instant support from our team

Available in dashboard
Business hours

Phone Support

Speak directly with our team

+254 20 1234567
Mon-Fri 8AM-6PM EAT

WhatsApp

Quick support via WhatsApp

+254 712 345678
24/7

Enterprise Support

  • • Dedicated account manager
  • • Priority support queue
  • • Custom SLA agreements
  • • Direct phone line to engineering
  • • Quarterly business reviews
  • • Free integration assistance

Self-Service Resources

  • • Comprehensive documentation
  • • Video tutorials and guides
  • • API reference and examples
  • • Community forum
  • • Status page and incident reports
  • • Developer blog and changelog
<15 minutes
Average Response Time
98%
Customer Satisfaction
24/7
Support Availability

Service Level Agreement

Enterprise-grade reliability with guaranteed uptime and performance

Uptime Guarantee

99.95%

Platform availability with automatic failover and redundancy

Delivery Rate

98.5%

Average message delivery success rate across all networks

API Latency

<200ms

Average API response time for message submission

SLA Tiers

Standard

  • • 99.5% uptime guarantee
  • • Best-effort delivery
  • • Standard support
  • • Monthly credits for downtime

Business

  • • 99.9% uptime guarantee
  • • Priority message routing
  • • Priority support
  • • Proactive monitoring

Enterprise

  • • 99.95% uptime guarantee
  • • Dedicated infrastructure
  • • 24/7 dedicated support
  • • Custom SLA terms available

What's Covered

Covered by SLA

  • • Platform availability and uptime
  • • API response times
  • • Message queue processing
  • • Webhook delivery
  • • Dashboard accessibility
  • • Core messaging functionality

Not Covered by SLA

  • • Third-party carrier issues
  • • Network operator downtime
  • • Invalid phone numbers
  • • Recipient device issues
  • • Scheduled maintenance (with notice)
  • • Force majeure events

SLA Credits

If we fail to meet our SLA commitments, you'll receive service credits automatically applied to your account. Credits are calculated based on the severity and duration of the service disruption, up to 100% of your monthly invoice.

Get Started in Minutes

Simple onboarding process to get you sending messages quickly

1

Create Account

Sign up for free in under 2 minutes

  • Provide basic company information
  • Verify your email address
  • Choose your region and currency
Time:2 minutes
2

Get API Credentials

Generate your API key instantly

  • Access your dashboard
  • Generate API key with custom permissions
  • Copy credentials to your application
Time:1 minute
3

Configure & Test

Set up and test in sandbox mode

  • Install SDK or configure API
  • Send test messages in sandbox
  • Configure webhooks for delivery reports
Time:10 minutes
4

Go Live

Add credits and start sending

  • Add funds to your account
  • Register sender IDs (if required)
  • Switch to production mode
Time:5 minutes

Dedicated Onboarding Support

For All Customers

  • • Step-by-step documentation
  • • Video tutorials and guides
  • • Live chat support during setup
  • • Sample code and templates
  • • Testing environment with free credits

For Enterprise Customers

  • • Dedicated onboarding specialist
  • • Scheduled onboarding calls
  • • Custom integration assistance
  • • Architecture review and recommendations
  • • Priority technical support

Average Onboarding Time: 18 Minutes

Most customers complete onboarding and send their first message within 20 minutes. Our intuitive interface and comprehensive documentation make it easy to get started, even if you've never used a messaging API before.

Test in Sandbox Mode

Risk-free testing environment with free credits to build and test your integration

Free
Test Credits
No Risk
No Credit Card
Full API
All Features
Instant
Setup Time

Sandbox Features

  • • Send test messages to verified numbers
  • • Full API access with all endpoints
  • • Webhook testing and debugging
  • • Simulated delivery reports
  • • Error scenario testing
  • • Rate limit testing
  • • Message template testing
  • • SDK integration testing

How Sandbox Works

1. Automatic Mode Detection

Use your test API key to automatically activate sandbox mode

2. Add Test Numbers

Register phone numbers that can receive test messages

3. Test Everything

Send messages, test webhooks, and simulate different scenarios

4. Switch to Production

When ready, simply switch to production API key to go live

Test Scenarios

Success Scenarios

  • • Normal message delivery
  • • Scheduled messages
  • • Bulk sending
  • • Template messages

Error Scenarios

  • • Invalid phone numbers
  • • Network failures
  • • Rate limit errors
  • • Authentication errors

Advanced Testing

  • • Webhook retries
  • • DLR simulation
  • • Load testing
  • • Failover testing

Sandbox Best Practices

  • • Test all message types (transactional, promotional, OTP)
  • • Verify webhook handling for all event types
  • • Test error handling and retry logic
  • • Validate sender ID configuration before going live
  • • Load test with expected production volumes
  • • Review sandbox logs before switching to production
FAQ

Frequently Asked Questions

Everything you need to know about this product

Getting Started

Transactional SMS includes OTPs, order confirmations, and account notifications - messages that customers expect and are exempt from DND registries. Promotional SMS includes marketing messages and must comply with opt-in requirements and DND registries.
Sign up for a free account, verify your email, and you'll receive API credentials immediately. You can start sending messages within minutes using our sandbox environment with free test credits.
Yes, new accounts receive free test credits to try our service in sandbox mode. No credit card required to start testing.

Sender IDs

Sender ID approval in Kenya typically takes 2-3 business days through the Communications Authority. You'll need to provide business registration documents. We handle the entire registration process for you.

Technical

Standard GSM encoding supports 160 characters per message. Unicode (for languages like Arabic, Chinese, or emoji) supports 70 characters per message. Messages longer than these limits are sent as concatenated messages (up to 6 parts).
Yes, we fully support Unicode including emojis, Arabic, Chinese, and all international characters. Unicode messages are limited to 70 characters per SMS part instead of 160.
Delivery reports (DLRs) are sent to your webhook URL in real-time. You'll receive status updates including sent, delivered, failed, and (if enabled) click tracking for URLs.

Features

Yes, we support two-way messaging. You can receive replies from your customers and process them via webhooks. This is useful for surveys, feedback collection, and customer support.
Yes, you can schedule messages up to 6 months in advance. Specify the delivery time in any timezone, and we'll handle the rest.
Yes, you can send bulk SMS to any of the 195 countries we cover. Simply include the country code in the recipient number. Pricing varies by destination.

Pricing

Volume discounts are applied automatically based on your monthly commitment. Starter tier (10K messages) gets 5% off, Business (100K) gets 10% off, and Enterprise (1M+) gets 15% off. Discounts apply to all messages sent.
Pricing is per message sent and varies by destination country and network. Volume discounts apply based on your monthly commitment. Check our pricing calculator for exact rates.

Delivery

We automatically retry failed messages up to 3 times. You'll receive a delivery report via webhook with the failure reason. Failed messages are not charged. Common failure reasons include invalid numbers, network issues, or handset turned off.

Integration

Yes, we provide a RESTful API and SDKs in 7 languages (PHP, Python, Node.js, Java, C#, Go, Ruby). Integration typically takes less than an hour. We also offer a web dashboard for manual sending.

Compliance

Yes, we are fully GDPR compliant with data residency options in African data centers. We also comply with local regulations including Kenya's Data Protection Act, Nigeria's NDPR, and have DND registry integration.
The Do Not Disturb (DND) registry contains phone numbers that have opted out of promotional messages. We automatically filter your campaigns against DND registries in Kenya and Nigeria. Transactional messages are not affected.

Reliability

We guarantee 99.95% uptime with our Enterprise SLA. Our platform is built on redundant infrastructure across multiple data centers with automatic failover.

Billing

We accept credit cards, bank transfers, and mobile money (M-Pesa, Airtel Money). Enterprise customers can set up monthly invoicing.

Support

We offer 24/7 support via email, live chat, phone, and WhatsApp. Enterprise customers get a dedicated account manager and priority support with <15 minute response times.

Advanced

Yes, we can provision dedicated short codes for high-volume senders. Contact our sales team for pricing and availability in your country.

Ready to Experience the Fastest Cloud?

Start with $100 free credits. Deploy your first instance in under 60 seconds. No credit card required for trial account.

View Documentation
✓ No credit card required for trial
✓ $100 free credits for new customers
✓ Deploy in under 60 seconds
✓ Cancel anytime, no commitments
✓ 24/7 expert support included
✓ 99.99% uptime SLA
✓ Data sovereignty guaranteed
✓ ISO 27001 & SOC 2 certified