Truecaller

aid: truecaller
name: Truecaller
description: 'Truecaller is the Stockholm-based caller identification and spam-blocking platform (atomico and balderton-capital
  portfolio) used by hundreds of millions of people to know who is calling. For developers it publishes the Truecaller SDK
  for Android, iOS, mobile web, Flutter, React Native and Shopify - one-tap phone-number verification built on OAuth 2.0 with
  PKCE (authorization code + refresh token, OIDC-style userinfo) plus a drop-call / IM-OTP flow for non-Truecaller users.
  Truecaller for Business adds REST APIs on enterprise-portal-noneu.truecaller.com for verified business caller ID: call personalisation
  (dynamic caller ID), number management, verified campaigns, and Call Me Back / User Feedback webhooks.'
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://www.truecaller.com/open-graph.jpg
url: https://raw.githubusercontent.com/api-evangelist/truecaller/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- atomico
- balderton-capital
x-tier: profiled
x-tier-reason: enriched-from-portfolio-lead
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 17
  pass: local-v1
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Consumer
- Caller ID
- Phone Verification
- Identity
- OAuth
- Spam Detection
- Communications
- Mobile SDK
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: VulnerabilityDisclosure
  url: security/truecaller-vulnerability-disclosure.yml
- name: Truecaller Responsible Disclosure & Bug Bounty
  url: https://www.truecaller.com/responsible-disclosure
  type: Security
- type: DomainSecurity
  url: security/truecaller-domain-security.yml
- name: Truecaller Packages and SDKs
  url: packages/truecaller-packages.yml
  type: Packages
- name: Truecaller SDKs (Android, iOS, Flutter)
  url: packages/truecaller-packages.yml
  type: SDKs
- name: Truecaller Well-Known Index
  url: well-known/truecaller-well-known.yml
  type: WellKnown
- name: Truecaller security.txt
  url: well-known/truecaller-security.txt
  type: SecurityTxt
- name: Truecaller OAuth OpenID Configuration
  url: well-known/truecaller-openid-configuration.json
  type: OpenIDConnect
- name: Truecaller llms.txt (Truecaller SDK docs)
  url: llms/truecaller-llms.txt
  type: LLMsTxt
- name: Truecaller for Business llms.txt
  url: llms/truecaller-business-llms.txt
  type: LLMsTxt
- name: Truecaller Authentication Profile
  url: authentication/truecaller-authentication.yml
  type: Authentication
- name: Truecaller OAuth Scopes
  url: scopes/truecaller-scopes.yml
  type: OAuthScopes
- name: Truecaller API Conventions
  url: conventions/truecaller-conventions.yml
  type: Conventions
- name: Truecaller Error Catalog
  url: errors/truecaller-error-codes.yml
  type: ErrorCatalog
- name: Truecaller Lifecycle
  url: lifecycle/truecaller-lifecycle.yml
  type: Lifecycle
- name: Truecaller Deprecated APIs
  url: https://docs.truecaller.com/truecaller-for-business/verified-business-api-documentation/deprecated-apis
  type: Deprecation
- name: Truecaller Conformance
  url: conformance/truecaller-conformance.yml
  type: Conformance
- name: Truecaller SDK Change Log
  url: changelog/truecaller-changelog.yml
  type: ChangeLog
- name: Truecaller Embedded Components
  url: components/truecaller-components.yml
  type: Components
- name: Truecaller Webhooks
  url: asyncapi/truecaller-webhooks.yml
  type: Webhooks
- name: Truecaller
  url: https://www.truecaller.com
  type: Website
- name: Truecaller for Developers
  url: https://developer.truecaller.com
  type: DeveloperPortal
- name: Truecaller SDK Documentation
  url: https://docs.truecaller.com/truecaller-sdk
  type: Documentation
- name: Truecaller for Business API Reference
  url: https://docs.truecaller.com/truecaller-for-business/verified-business-api-documentation/getting-started
  type: APIReference
- name: Truecaller SDK Getting Started
  url: https://docs.truecaller.com/truecaller-sdk/getting-started
  type: GettingStarted
- name: Truecaller Developer Support
  url: https://developer.truecaller.com/support
  type: Support
- name: Truecaller Developer Blog
  url: https://developer.truecaller.com/blog
  type: Blog
- name: Truecaller on GitHub
  url: https://github.com/truecaller
  type: GitHubOrganization
- name: Truecaller Developer Portal Sign Up
  url: https://sdk-console-noneu.truecaller.com/sign-up
  type: SignUp
- name: Truecaller Terms of Service
  url: https://www.truecaller.com/terms-of-service
  type: TermsOfService
- name: Truecaller Privacy Policy
  url: https://www.truecaller.com/privacy-policy
  type: PrivacyPolicy
apis:
- aid: truecaller:truecaller-oauth-api
  name: Truecaller OAuth User Verification API
  humanURL: https://docs.truecaller.com/truecaller-sdk/android/latest-oauth-sdk-3.3.0/integration-steps/integrating-with-your-backend
  baseURL: https://oauth-account-noneu.truecaller.com
  tags:
  - OAuth
  - OpenID Connect
  - Phone Verification
  - Identity
  - Token
  - UserInfo
  description: The backend half of the Truecaller OAuth SDK flow. After the mobile SDK returns an authorization code, partners
    exchange it at POST /v1/token (authorization_code grant with PKCE code_verifier; refresh_token also supported) and fetch
    the verified user profile at GET /v1/userinfo with the Bearer access token. The host publishes OpenID Connect discovery
    at /.well-known/openid-configuration with /v1/auth, /v1/token, /v1/revoke, per-client JWKS, RS256 id tokens, and S256
    PKCE.
  properties:
  - url: https://docs.truecaller.com/truecaller-sdk/android/latest-oauth-sdk-3.3.0/integration-steps/integrating-with-your-backend/fetching-user-token
    type: Documentation
  - url: https://docs.truecaller.com/truecaller-sdk/android/latest-oauth-sdk-3.3.0/integration-steps/integrating-with-your-backend/fetching-user-profile
    type: APIReference
- aid: truecaller:truecaller-otp-verification-api
  name: Truecaller Non-Truecaller User Verification API
  humanURL: https://docs.truecaller.com/truecaller-sdk/android/latest-oauth-sdk-3.3.0/integration-steps/non-truecaller-user-verification/server-side-validation
  baseURL: https://sdk-otp-verification-noneu.truecaller.com
  tags:
  - Phone Verification
  - OTP
  - Missed Call
  - Validation
  description: Server-side validation for the drop-call / IM-OTP verification flow that covers users without the Truecaller
    app. GET /v1/otp/client/installation/phoneNumberDetail/{accessToken} (clientId header) returns the verified phone number
    and country code for the access token issued by the SDK.
  properties:
  - url: https://docs.truecaller.com/truecaller-sdk/android/latest-oauth-sdk-3.3.0/integration-steps/non-truecaller-user-verification/server-side-validation
    type: Documentation
- aid: truecaller:truecaller-web-sdk-profile-api
  name: Truecaller Web SDK Profile API
  humanURL: https://docs.truecaller.com/truecaller-sdk/mobile-websites/integrating-with-your-mobile-website/fetch-user-profile
  baseURL: https://profile4-noneu.truecaller.com
  tags:
  - Phone Verification
  - Profile
  - Mobile Web
  description: Profile retrieval for the mobile-web (deep link) verification flow. After a user consents in the Truecaller
    app, Truecaller POSTs the accessToken and requestId to the partner's callback URL together with the profile endpoint (GET
    /v1/default with Bearer token), which returns the user's verified phone numbers, name, addresses and online identities.
  properties:
  - url: https://docs.truecaller.com/truecaller-sdk/mobile-websites/integrating-with-your-mobile-website/fetch-user-profile
    type: Documentation
- aid: truecaller:truecaller-for-business-api
  name: Truecaller for Business API
  humanURL: https://docs.truecaller.com/truecaller-for-business/verified-business-api-documentation/getting-started
  baseURL: https://enterprise-portal-noneu.truecaller.com
  tags:
  - Verified Business Caller ID
  - Call Personalisation
  - Number Management
  - Verified Campaigns
  - Webhooks
  description: REST APIs for Truecaller's Verified Business Caller ID platform. Partners exchange a Key ID + Secret API Key
    for a 60-minute bearer token (POST /clients/{clientAccountId}/token), then push dynamic caller-ID personalisation in real
    time (POST /v2/clients/{clientAccountId}/dynamic_call_record, 100 rps per token) or batch, check batch status, read dynamic
    labels, list/delist business numbers under feature sets, and run Verified Campaigns (bulk upload and exit via enterprise-webhooks-noneu.truecaller.com).
    Call Me Back and User Feedback events are delivered by configurable webhooks.
  properties:
  - url: https://docs.truecaller.com/truecaller-for-business/verified-business-api-documentation/getting-started
    type: Documentation
  - url: https://docs.truecaller.com/truecaller-for-business/verified-business-api-documentation/getting-started/generate-access-token
    type: GettingStarted