Sinch APIs
Sinch APIs: A broad communications stack for businesses embedding messaging, voice, video, email, and verification. Ranked #1 of 23 in Communications Platforms as a Service by our editors (9.4/10); pricing: Paid; best for large-scale multichannel communications.
At a glance
- Editor score9.4 / 10
- PricingPaid
- Best forLarge-scale multichannel communications
- Free planNo
- Channels supportedSMS, MMS, RCS, WhatsApp, Facebook Messenger, Instagram, Viber, Telegram, KakaoTalk, LINE, WeChat, Sinch Chat, push notifications, email, voice, video
- Founded2008 · Stockholm, Sweden
- Facts checked21 Sep 2026
Where it wins
- Supports messaging across SMS, MMS, RCS, and major social channels
- Combines voice, video, email, verification, and phone numbers
- Offers SDKs, documentation, integrations, and a self-service dashboard
Where it doesn't
- No free plan is available
- Pay-as-you-go rates vary by country, channel, and usage
- Its broad feature set may exceed the needs of single-channel projects
Our verdict on Sinch APIs
Sinch APIs is a cloud communications platform for developers and businesses embedding customer communications into applications and workflows. Its scope covers SMS, MMS, RCS, WhatsApp, Facebook Messenger, Instagram, Viber, Telegram, KakaoTalk, LINE, WeChat, Sinch Chat, push notifications, email, voice, and video. The platform also provides phone-number provisioning, verification services, developer SDKs, documentation, and a self-service dashboard for API credentials, projects, webhooks, analytics, and compliance. Support spans web, iOS, Android, and API environments, with iOS, Android, and JavaScript SDKs for voice and video use cases.
The standout strength is breadth. Sinch APIs combines transactional and marketing email through Sinch Mailgun with programmable inbound and outbound calling, in-app voice and video, and verification by SMS, voice, WhatsApp, flash call, and data. Voice capabilities include IVR, text-to-speech, recording, transcription, and number masking. The integration catalog includes HubSpot, Salesforce, Shopify, Adobe, SAP, Klaviyo, Mailchimp, Workato, Zapier, Genesys, Zendesk, and Microsoft Dynamics 365. That makes it a strong fit for organizations coordinating several communication channels across customer, marketing, and operational workflows. A focused SMS project may not need this full range.
According to the published pricing model, Sinch APIs uses pay-as-you-go pricing rather than a recurring platform tier. Usage-based rates apply to SMS, voice, and other communication services, with pricing varying by country, channel, and usage. This structure can suit variable communication volumes, but it requires planning around channel and geographic rates. The product is best suited to teams that can work with APIs, SDKs, webhooks, and platform configuration and that need multiple communication capabilities in one environment. Organizations seeking a free plan or a narrowly focused communications tool should consider a simpler alternative.
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Sinch APIs pricing
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Sinch APIs fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Channels supported | SMS, MMS, RCS, WhatsApp, Facebook Messenger, Instagram, Viber, Telegram, KakaoTalk, LINE, WeChat, Sinch Chat, push notifications, email, voice, video |
| Pricing model | Payg |
| Programmable voice | Yes |
| Programmable messaging | Yes |
| Programmable video | Yes |
| SDK platforms | iOS, Android, JavaScript (Web) |
| Phone number support | Yes |
| Deployment | Cloud, Mobile |
| Platforms | Web, iOS, Android |
| Compliance & security | SOC 2, ISO 27001, GDPR, SSO/SAML, 2FA |
| Support | Docs, Community, Tickets, Phone |
| Built for | Mid-market, Enterprise (editorial estimate) |
| Integrations | 12 integrations: HubSpot, Salesforce, Shopify, Adobe, SAP, Klaviyo … See all → |
| Pricing | Paid (source) |
| Website | sinch.com |
| Facts checked | 21 Sep 2026 |
Sinch APIs integrations
Sinch APIs lists 12 integrations on its own site.
- HubSpot
- Salesforce
- Shopify
- Adobe
- SAP
- Klaviyo
- Mailchimp
- Workato
- Zapier
- Genesys
- Zendesk
- Microsoft Dynamics 365
See all Sinch APIs integrations →
Alternatives to Sinch APIs
- Vonage Communications APIsA broad CPaaS for enterprises embedding voice, messaging, video, and verification.9.3
- Bandwidth Communications APIsA carrier-connected API platform for U.S. voice, messaging, authentication, and phone numbers.9.2
- 8x8 Communications APIsA broad communications API suite with a free Developer plan and usage-based options.9.1
See all Sinch APIs alternatives →
Sinch APIs vs the competition
- Sinch APIs vs Vonage Communications APIs
- Sinch APIs vs Bandwidth Communications APIs
- Sinch APIs vs 8x8 Communications APIs
- Sinch APIs vs Airtel IQ
- Sinch APIs vs Kaleyra Voice API
- Sinch APIs vs Gupshup
Compare Sinch APIs with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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