Sinch

aid: sinch
name: Sinch
description: Sinch is a cloud communications platform providing APIs for SMS, voice, video, fax, verification,
  and omnichannel messaging. It enables businesses to integrate global communication capabilities into
  their applications through programmable APIs for sending messages, making calls, verifying phone numbers,
  and managing sender identities across carrier networks worldwide.
type: Index
position: Consumer
access: 3rd-Party
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Communications
  - Messaging
  - SMS
  - Voice
  - Verification
  - CPaaS
created: '2025-01-01'
modified: '2026-05-04'
url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/apis.yml
specificationVersion: '0.19'
apis:
  - aid: sinch:sms-api
    name: Sinch SMS API
    description: The Sinch SMS API enables developers to send and receive SMS messages globally at scale.
      It supports batch messaging with scheduled delivery, message templates, delivery reports, and inbound
      message handling via webhooks. The API provides group management for organizing recipients, automatic
      message encoding optimization, and supports both transactional and marketing use cases across carriers
      worldwide.
    humanURL: https://developers.sinch.com/docs/sms
    baseURL: https://us.sms.api.sinch.com
    tags:
      - SMS
      - Messaging
      - Batch Messaging
    properties:
      - type: Documentation
        url: https://developers.sinch.com/docs/sms
      - type: OpenAPI
        url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/openapi/sinch-sms-openapi.yml
      - type: AsyncAPI
        url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/asyncapi/sinch-sms-webhooks-asyncapi.yml
  - aid: sinch:conversation-api
    name: Sinch Conversation API
    description: The Sinch Conversation API is an omnichannel messaging platform that enables developers
      to send and receive messages across multiple channels including SMS, RCS, WhatsApp, Facebook Messenger,
      Instagram, Viber, Telegram, KakaoTalk, and LINE through a single unified API. It provides contact
      management, conversation tracking, message templating, and webhook callbacks for real-time event
      handling.
    humanURL: https://developers.sinch.com/docs/conversation
    baseURL: https://us.conversation.api.sinch.com
    tags:
      - Conversation
      - Omnichannel
      - WhatsApp
      - Messaging
    properties:
      - type: Documentation
        url: https://developers.sinch.com/docs/conversation
      - type: OpenAPI
        url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/openapi/sinch-conversation-openapi.yml
      - type: AsyncAPI
        url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/asyncapi/sinch-conversation-webhooks-asyncapi.yml
  - aid: sinch:voice-api
    name: Sinch Voice API
    description: The Sinch Voice API is a programmable voice platform that allows developers to make,
      receive, and manage voice calls over PSTN, SIP, and in-app channels. It supports text-to-speech
      in over 115 languages, interactive voice response (IVR) menus, call recording, transcription, number
      masking, and conferencing.
    humanURL: https://developers.sinch.com/docs/voice
    baseURL: https://calling.api.sinch.com
    tags:
      - Voice
      - Calling
      - IVR
      - Telephony
    properties:
      - type: Documentation
        url: https://developers.sinch.com/docs/voice
      - type: OpenAPI
        url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/openapi/sinch-voice-openapi.yml
      - type: AsyncAPI
        url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/asyncapi/sinch-voice-callbacks-asyncapi.yml
  - aid: sinch:verification-api
    name: Sinch Verification API
    description: The Sinch Verification API provides phone number verification through multiple methods
      including SMS, flashcalls, phone calls, and data verification. It enables developers to verify user
      identity by sending one-time codes or initiating automated verification flows.
    humanURL: https://developers.sinch.com/docs/verification
    baseURL: https://verification.api.sinch.com
    tags:
      - Verification
      - Identity
      - OTP
      - Authentication
    properties:
      - type: Documentation
        url: https://developers.sinch.com/docs/verification
      - type: OpenAPI
        url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/openapi/sinch-verification-openapi.yml
      - type: AsyncAPI
        url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/asyncapi/sinch-verification-callbacks-asyncapi.yml
  - aid: sinch:numbers-api
    name: Sinch Numbers API
    description: The Sinch Numbers API enables developers to programmatically search for, purchase, configure,
      and manage phone numbers across multiple countries. It supports local, national, mobile, and toll-free
      number types that can be used with Sinch SMS, Voice, and Conversation APIs.
    humanURL: https://developers.sinch.com/docs/numbers
    baseURL: https://numbers.api.sinch.com
    tags:
      - Numbers
      - Phone Numbers
      - Provisioning
    properties:
      - type: Documentation
        url: https://developers.sinch.com/docs/numbers
      - type: OpenAPI
        url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/openapi/sinch-numbers-openapi.yml
  - aid: sinch:fax-api
    name: Sinch Fax API
    description: The Sinch Fax API allows developers to send and receive faxes programmatically at scale.
      It supports sending faxes to single or multiple recipients, downloading received faxes, and managing
      fax numbers. HIPAA, SOC 2 Type 1, and GDPR compliant.
    humanURL: https://developers.sinch.com/docs/fax
    baseURL: https://fax.api.sinch.com
    tags:
      - Fax
      - Document
      - HIPAA
    properties:
      - type: Documentation
        url: https://developers.sinch.com/docs/fax
      - type: OpenAPI
        url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/openapi/sinch-fax-openapi.yml
  - aid: sinch:elastic-sip-trunking-api
    name: Sinch Elastic SIP Trunking API
    description: The Sinch Elastic SIP Trunking API enables developers to programmatically create and
      manage SIP trunks for connecting existing telephony infrastructure to the Sinch network. Supports
      elastic scaling of voice capacity without fixed-capacity commitments.
    humanURL: https://developers.sinch.com/docs/sip-trunking
    baseURL: https://sip.api.sinch.com
    tags:
      - SIP
      - Voice
      - Trunking
      - Telephony
    properties:
      - type: Documentation
        url: https://developers.sinch.com/docs/sip-trunking
      - type: OpenAPI
        url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/openapi/sinch-elastic-sip-trunking-openapi.yml
  - aid: sinch:brands-api
    name: Sinch Brands API
    description: The Sinch Brands API allows developers to create, update, and manage customer brand profiles
      used across Sinch messaging products. Brands represent the business identity associated with messaging
      campaigns and sender registrations.
    humanURL: https://developers.sinch.com/docs/brands
    baseURL: https://brands.api.sinch.com
    tags:
      - Brands
      - Messaging
      - Compliance
    properties:
      - type: Documentation
        url: https://developers.sinch.com/docs/brands
      - type: OpenAPI
        url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/openapi/sinch-brands-openapi.yml
  - aid: sinch:provisioning-api
    name: Sinch Provisioning API
    description: The Sinch Provisioning API allows developers to programmatically set up and configure
      Sinch services and resources including service plans, credentials, and integrations.
    humanURL: https://developers.sinch.com/docs/provisioning
    baseURL: https://provisioning.api.sinch.com
    tags:
      - Provisioning
      - Configuration
      - Management
    properties:
      - type: Documentation
        url: https://developers.sinch.com/docs/provisioning
      - type: OpenAPI
        url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/openapi/sinch-provisioning-openapi.yml
  - aid: sinch:registration-api
    name: Sinch Registration API
    description: The Sinch Registration API provides endpoints for managing sender ID registrations and
      campaign registrations required for compliant business messaging in regulated markets.
    humanURL: https://developers.sinch.com/docs/registration
    baseURL: https://registration.api.sinch.com
    tags:
      - Registration
      - Sender ID
      - Compliance
      - Messaging
    properties:
      - type: Documentation
        url: https://developers.sinch.com/docs/registration
      - type: OpenAPI
        url: https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/openapi/sinch-registration-openapi.yml
common:
  - type: Website
    url: https://www.sinch.com/
  - type: DeveloperPortal
    url: https://developers.sinch.com/
  - type: Documentation
    url: https://developers.sinch.com/docs/
  - type: Pricing
    url: https://www.sinch.com/pricing/
  - type: Blog
    url: https://www.sinch.com/blog/
  - type: GitHubOrg
    url: https://github.com/sinch
  - type: TermsOfService
    url: https://www.sinch.com/terms-of-service/
  - type: PrivacyPolicy
    url: https://www.sinch.com/privacy-policy/
  - type: Support
    url: https://www.sinch.com/contact-us/
  - type: StatusPage
    url: https://status.sinch.com/
  - type: SignUp
    url: https://dashboard.sinch.com/signup
  - type: Features
    data:
      - SMS pay-as-you-go (rates vary by country)
      - Voice pay-as-you-go (rates vary by country)
      - RCS messaging
      - Email via Mailgun (Sinch-owned) or Mailjet
      - WhatsApp Business Platform
      - Verify API for OTP across SMS/Voice/Flash Call/Push
      - Number Lookup
      - Conversation API for omnichannel chat
      - Tier 1 carrier with own network
      - REST APIs for each product
      - Default 100 SMS/sec
      - OAuth 2.0 + Application API tokens
      - Webhooks for delivery receipts
      - Available in 200+ countries
      - EU/US/AU/SG data residency
      - Enterprise committed-use volume contracts
    sources:
      - https://www.sinch.com/pricing/
    updated: '2026-05-04'
maintainers:
  - FN: Kin Lane
    email: [email protected]