Telesign

Telesign provides a comprehensive suite of communications and security APIs enabling businesses to verify phone numbers, send SMS and voice messages, and assess fraud risk. Core offerings include SMS messaging, voice calls, multi-channel verification (OTP/MFA), phone number intelligence (PhoneID), reputation scoring, and silent verification. Telesign serves thousands of enterprises globally for account security, fraud prevention, and customer communications.

5 APIs 0 Features

AuthenticationCommunicationsFraud PreventionPhone IntelligenceSMSVerification

APIs

Telesign SMS API

Send SMS messages including alerts, notifications, reminders, marketing messages, and one-time passwords to phone numbers worldwide. Messages are classified by type (OTP, ARN, M...

Telesign PhoneID API

Retrieve global phone number intelligence including carrier information, geographic location, phone type (mobile, landline, VoIP), and subscriber data. Used for fraud prevention...

Telesign Verify API

Multi-channel phone-based verification and MFA. Send one-time passcodes via SMS, voice, WhatsApp, Viber, RCS, or email, and verify codes submitted by end users. Supports passwor...

Telesign Score API

Assess fraud risk for phone numbers using reputation scoring based on intelligence, traffic patterns, machine learning, and a global data consortium. Returns a risk level and nu...

Telesign Voice API

Send voice messages including OTPs, alerts, and notifications to phone numbers worldwide. Supports text-to-speech message delivery and call status tracking.

Collections

Telesign PhoneID API

OPEN

Telesign Score API

OPEN

Telesign SMS API

OPEN

Telesign Verify API

OPEN

Pricing Plans

Telesign Plans Pricing

3 plans

PLANS

Rate Limits

Telesign Rate Limits

1 limits

RATE LIMITS

FinOps

Telesign Finops

FINOPS

Semantic Vocabularies

Telesign Context

3 classes · 5 properties

JSON-LD

API Governance Rules

Telesign API Rules

12 rules · 4 errors 7 warnings

SPECTRAL

JSON Structure

Telesign Messaging Structure

0 properties

JSON STRUCTURE

Telesign Structure

0 properties

JSON STRUCTURE

Example Payloads

Telesign Create Verification Example

4 fields

EXAMPLE

Telesign Phoneid Lookup Example

4 fields

EXAMPLE

Telesign Send Sms Example

4 fields

EXAMPLE

Resources

GitHubOrganization

GitHubOrganization

Sources

opencollection: 1.0.0
info:
  name: Telesign Verify API
  version: '2'
request:
  auth:
    type: basic
    username: '{{username}}'
    password: '{{password}}'
items:
- info:
    name: Verification
    type: folder
  items:
  - info:
      name: Create Verification Process
      type: http
    http:
      method: POST
      url: https://rest-ww.telesign.com/v1/verify
      body:
        type: json
        data: '{}'
    docs: Initiate a verification process by sending an OTP to a phone number via the specified channel (SMS, voice, WhatsApp,
      etc.). Returns a reference ID to track the verification.
  - info:
      name: Retrieve Verification Process
      type: http
    http:
      method: GET
      url: https://rest-ww.telesign.com/v1/verify/:reference_id
      params:
      - name: reference_id
        value: ''
        type: path
        description: The reference ID returned when the verification was created.
    docs: Check the status of an existing verification process.
  - info:
      name: Update Verification Process
      type: http
    http:
      method: PATCH
      url: https://rest-ww.telesign.com/v1/verify/:reference_id
      params:
      - name: reference_id
        value: ''
        type: path
        description: The reference ID of the verification to update.
      body:
        type: json
        data: '{}'
    docs: Submit the OTP code entered by the end user to complete verification.
bundled: true