aid: sinch-verify
url: https://raw.githubusercontent.com/api-evangelist/sinch-verify/refs/heads/main/apis.yml
name: Sinch Verification API
kind: company
description: >-
  The Sinch Verification API (Sinch Verify) is a dedicated phone number
  verification product for confirming that a user controls a given mobile
  number - the core of OTP, two-factor authentication (2FA), and
  anti-fraud sign-up flows. It supports four verification methods: SMS
  (one-time passcode), flash call (a missed call whose caller ID is the
  code), phone call / callout (a spoken or key-press code), and data
  (seamless / silent verification over the mobile data connection). A
  verification is started from your backend, the code or caller ID is
  reported back, and Sinch returns a pass/fail result; status can also be
  queried by id, by phone number, or by a custom reference. This entry is
  the product-specific treatment of the Verification API; the parent
  company Sinch is a global CPaaS provider (SMS, Voice, Email, Verification,
  Conversation) cataloged separately under the "sinch" provider entry.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Number Verification
- Phone Verification
- OTP
- 2FA
- CPaaS
- SMS Verification
- Flash Call
- Two-Factor Authentication
- Identity Verification
- Sinch
created: '2026-07-11'
modified: '2026-07-11'
specificationVersion: '0.19'
apis:
- aid: sinch-verify:sinch-verify-start-verification-api
  name: Sinch Start Verification API
  tags:
  - Number Verification
  - OTP
  - 2FA
  - SMS Verification
  - Flash Call
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.sinch.com/docs/verification/api-reference/verification/verifications-start
  baseURL: https://verification.api.sinch.com/verification/v1
  properties:
  - url: https://developers.sinch.com/docs/verification/introduction
    type: Documentation
  - url: https://developers.sinch.com/docs/verification/api-reference/verification/verifications-start
    type: APIReference
  - url: openapi/sinch-verify-openapi.yml
    type: OpenAPI
  - url: collections/sinch-verify.postman_collection.json
    type: PostmanCollection
  - url: collections/sinch-verify.opencollection.json
    type: OpenCollection
  description: >-
    Starts a phone number verification (POST /verifications). Choose the
    method - sms, flashcall, callout (phone call), or seamless (data) - and
    provide the phone number as the identity. Sinch responds with the
    template or CLI filter the client should watch for. This is the same
    endpoint the mobile and web Verification SDKs call, and it can be
    invoked directly from any backend.
- aid: sinch-verify:sinch-verify-report-verification-api
  name: Sinch Report Verification API
  tags:
  - Number Verification
  - OTP
  - 2FA
  - Verify
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.sinch.com/docs/verification/api-reference/verification
  baseURL: https://verification.api.sinch.com/verification/v1
  properties:
  - url: https://developers.sinch.com/docs/verification/api-reference/verification
    type: APIReference
  - url: openapi/sinch-verify-openapi.yml
    type: OpenAPI
  - url: collections/sinch-verify.postman_collection.json
    type: PostmanCollection
  - url: collections/sinch-verify.opencollection.json
    type: OpenCollection
  description: >-
    Reports the code or caller ID a user received so Sinch can complete the
    verification and return a pass/fail result. Report by verification id
    (PUT /verifications/id/{id}) or by the phone number the verification was
    sent to (PUT /verifications/number/{endpoint}), passing the OTP for SMS,
    the observed caller ID for flash call, or the entered digits for a
    phone call.
- aid: sinch-verify:sinch-verify-verification-status-api
  name: Sinch Verification Status API
  tags:
  - Number Verification
  - Status
  - Reporting
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.sinch.com/docs/verification/api-reference/verification/verification-status
  baseURL: https://verification.api.sinch.com/verification/v1
  properties:
  - url: https://developers.sinch.com/docs/verification/api-reference/verification/verification-status
    type: APIReference
  - url: openapi/sinch-verify-openapi.yml
    type: OpenAPI
  - url: collections/sinch-verify.postman_collection.json
    type: PostmanCollection
  - url: collections/sinch-verify.opencollection.json
    type: OpenCollection
  description: >-
    Queries the status of pending and completed verifications ad-hoc.
    Look up by verification id (GET /verifications/id/{id}), by phone number
    and method (GET /verifications/{method}/number/{endpoint}), or by a
    custom reference string (GET /verifications/reference/{reference}).
    Returns the verification status, method, and outcome.
common:
- type: AgenticAccess
  url: agentic-access/sinch-verify-agentic-access.yml
- type: Authentication
  url: authentication/sinch-verify-authentication.yml
- type: DomainSecurity
  url: security/sinch-verify-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/sinch
- type: Website
  url: https://sinch.com/verification-api/
- type: Documentation
  url: https://developers.sinch.com/docs/verification/introduction
- type: DeveloperPortal
  url: https://developers.sinch.com/
- type: SignUp
  url: https://dashboard.sinch.com/signup
- type: Plans
  url: plans/sinch-verify-plans-pricing.yml
- type: RateLimits
  url: rate-limits/sinch-verify-rate-limits.yml
- type: FinOps
  url: finops/sinch-verify-finops.yml
- type: Pricing
  url: https://sinch.com/pricing/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com