Sinch
Messaging, voice, email and verification APIs for businesses and developers
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Pricing
Free trial
Free trial
Yes
API
Yes
Company
Sinch
Platforms
What is Sinch?
Sinch is a communications platform as a service (CPaaS). It offers APIs for SMS, RCS, MMS, WhatsApp, voice, email, video and phone number verification. Alongside the APIs, it sells ready-made applications for teams: a messaging platform, an email platform, a chatbot builder and contact center software.
Sinch says it connects directly to more than 600 mobile operators, which means fewer intermediaries when routing traffic. It claims 99.99% uptime across 190+ countries. Delivery, routing, compliance and fraud prevention are part of the infrastructure. Developers get SDKs, a CLI, a hosted serverless Functions runtime and an MCP server for AI coding tools. SMS, voice and RCS are billed pay-as-you-go.
Sinch fits enterprises and developers that send marketing campaigns, notifications, one-time passcodes and support messages at scale. The group also owns Mailgun, Mailjet, SimpleTexting and ClickSend.
Key features
- SMS, MMS, RCS and WhatsApp messaging APIs
- Voice API, SIP trunking and in-app voice and video SDKs
- Email APIs and email platform
- Phone number verification API
- Number provisioning in 190+ countries
- Chatbot builder and contact center applications
- Serverless Functions runtime and CLI
- MCP server and plugins for AI coding tools
Use cases
Who it's for
Marketing campaigns
Send SMS, RCS and email campaigns to engage customers and increase conversions.
Notifications and alerts
Send account, service or event updates to customers across channels.
User verification
Verify phone numbers and secure logins with the verification APIs.
Customer care
Support customers before and after a sale through messaging, voice and chatbots.
Sinch pricing
From the vendor's site, checked Nov 14, 2026. Prices change — confirm on their pricing page.
SMS
per message
Pay-as-you-go
- Global SMS pricing by country
Voice
per usage
Pay-as-you-go
- Voice API and in-app voice and video SDKs
RCS
per message
Pay-as-you-go
- Global RCS pricing
Functions
per compute time
Starts free
- Hosted serverless runtime for voice and messaging logic
Get an email when Sinch changes its prices
One mail per change, a stop link in each. Nothing else.
How Sinch compares
- Sinch has no free plan, while 1 of the 4 alternatives below has one.
| Tool | Starts at | Free plan | Free trial | API | Open source | |
|---|---|---|---|---|---|---|
| SSinch | — | — | — | |||
V Vonage | — | — | — | Sinch vs Vonage | ||
A Aircall | $30/mo | — | — | Sinch vs Aircall | ||
Z Zadarma | $4/mo | — | Sinch vs Zadarma | |||
P Plivo | — | — | — | Sinch vs Plivo |
The closest alternatives in our directory by category. “Starts at” is the cheapest paid plan per month, as each vendor lists it.
Pros and cons
Strengths
- Direct connections to 600+ operators
- 99.99% uptime claimed across 190+ countries
- SMS, voice and RCS are billed pay-as-you-go
- Messaging, voice, email and verification on one platform
Limitations
- Rates vary by country and channel, with no flat plans
- Custom solutions require contacting sales
Sinch FAQ
How is Sinch priced?
SMS, voice and RCS are billed pay-as-you-go. Functions starts free and charges only for the compute time you use.
Is there a free trial?
Yes. The site offers a 'Try for free' signup.
Which channels does Sinch support?
SMS, RCS, MMS, WhatsApp, email, voice, video and SIP trunking.
Does Sinch have developer tools?
Yes. It provides APIs, SDKs, a CLI, a serverless Functions runtime, a GitHub presence and an MCP server.
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Sinch
Free trial