Telnyx Verify API

Telnyx Verify API is a phone-number verification and two-factor authentication (2FA / OTP) product, paired with Telnyx Number Lookup for number intelligence (carrier, line type, caller name / CNAM, and portability). Verify sends a one-time passcode over SMS, voice call, flash call, or WhatsApp and checks the code the user enters - by verification ID or by phone number - with reusable per-channel Verify Profiles and message templates, plus verification webhooks and built-in anti-fraud controls against SMS pumping and brute-force attacks. Number Lookup returns carrier and caller data for an E.164 number for routing, validation, lead enrichment, and fraud workflows. Both run on the Telnyx API v2 (https://api.telnyx.com/v2) with Bearer API-key auth. This is a product-specific treatment of the parent Telnyx cloud-communications (CPaaS) platform, whose full voice / messaging / numbers / fax / wireless surface is documented in the `telnyx` catalog entry.

Telnyx Verify API publishes 3 APIs on the APIs.io network: Number Lookup API, Verify API, and Verify Profiles API. Tagged areas include Number Verification, Phone Verification, OTP, 2FA, and Lookup.

Telnyx Verify API’s developer surface includes authentication, documentation, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub
41.8/100 thin ▬ flat Agent 48/100 agent ready Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessPaidSelf serve
3 APIs
Number VerificationPhone VerificationOTP2FALookupVerifyNumber LookupCNAMIdentityAnti-Fraud

Kin Score

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scored 2026-07-27 · rubric v0.5
Composite quality — 41.8/100 · thin
Contract Quality 15.2 / 25
Developer Ergonomics 3.9 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
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APIs 3

Individual APIs this provider publishes, each with its own machine-readable definition.

Telnyx Verify API Number Lookup API

Carrier, caller-name (CNAM), and portability intelligence for a phone number.

Telnyx Verify API Verify API

Trigger and check OTP / 2FA verifications over SMS, call, flash call, and WhatsApp.

Telnyx Verify API Verify Profiles API

Reusable per-channel verification configuration and message templates.

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Telnyx Verify and Number Lookup API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Telnyx Verify Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Telnyx Verify Rate Limits

4 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Telnyx Verify Finops

FINOPS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Telnyx Verify Authentication

http · 1 scheme

SECURITY

Telnyx Verify Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Telnyx Verify Agentic Access

17 operations · 11 acting

17 operations · 11 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: telnyx-verify
url: https://raw.githubusercontent.com/api-evangelist/telnyx-verify/refs/heads/main/apis.yml
name: Telnyx Verify API
kind: company
description: Telnyx Verify API is a phone-number verification and two-factor authentication (2FA / OTP) product, paired with
  Telnyx Number Lookup for number intelligence (carrier, line type, caller name / CNAM, and portability). Verify sends a one-time
  passcode over SMS, voice call, flash call, or WhatsApp and checks the code the user enters - by verification ID or by phone
  number - with reusable per-channel Verify Profiles and message templates, plus verification webhooks and built-in anti-fraud
  controls against SMS pumping and brute-force attacks. Number Lookup returns carrier and caller data for an E.164 number
  for routing, validation, lead enrichment, and fraud workflows. Both run on the Telnyx API v2 (https://api.telnyx.com/v2)
  with Bearer API-key auth. This is a product-specific treatment of the parent Telnyx cloud-communications (CPaaS) platform,
  whose full voice / messaging / numbers / fax / wireless surface is documented in the `telnyx` catalog entry.
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/telnyx-verify.png
tags:
- Number Verification
- Phone Verification
- OTP
- 2FA
- Lookup
- Verify
- Number Lookup
- CNAM
- Identity
- Anti-Fraud
created: '2026-07-11'
modified: '2026-07-11'
specificationVersion: '0.19'
apis:
- aid: telnyx-verify:telnyx-verify-number-lookup-api
  name: Telnyx Verify API Number Lookup API
  description: Carrier, caller-name (CNAM), and portability intelligence for a phone number.
  humanURL: https://developers.telnyx.com/docs/identity/verify/quickstart
  baseURL: https://api.telnyx.com/v2
  tags:
  - Number Lookup
  properties:
  - type: OpenAPI
    url: openapi/telnyx-verify-number-lookup-api-openapi.yml
  - type: Documentation
    url: https://developers.telnyx.com/docs/identity/verify/quickstart
  - type: APIReference
    url: https://developers.telnyx.com/api/verify/trigger-verification
  - type: PostmanCollection
    url: collections/telnyx-verify.postman_collection.json
  - type: OpenCollection
    url: collections/telnyx-verify.opencollection.json
  - type: APIReference
    url: https://developers.telnyx.com/api/verify/list-profiles
  - type: Documentation
    url: https://developers.telnyx.com/docs/identity/number-lookup/quickstart
  - type: APIReference
    url: https://developers.telnyx.com/api/number-lookup/lookup-number
- aid: telnyx-verify:telnyx-verify-verify-api
  name: Telnyx Verify API Verify API
  description: Trigger and check OTP / 2FA verifications over SMS, call, flash call, and WhatsApp.
  humanURL: https://developers.telnyx.com/docs/identity/verify/quickstart
  baseURL: https://api.telnyx.com/v2
  tags:
  - Verify
  properties:
  - type: OpenAPI
    url: openapi/telnyx-verify-verify-api-openapi.yml
  - type: Documentation
    url: https://developers.telnyx.com/docs/identity/verify/quickstart
  - type: APIReference
    url: https://developers.telnyx.com/api/verify/trigger-verification
  - type: PostmanCollection
    url: collections/telnyx-verify.postman_collection.json
  - type: OpenCollection
    url: collections/telnyx-verify.opencollection.json
  - type: APIReference
    url: https://developers.telnyx.com/api/verify/list-profiles
  - type: Documentation
    url: https://developers.telnyx.com/docs/identity/number-lookup/quickstart
  - type: APIReference
    url: https://developers.telnyx.com/api/number-lookup/lookup-number
- aid: telnyx-verify:telnyx-verify-verify-profiles-api
  name: Telnyx Verify API Verify Profiles API
  description: Reusable per-channel verification configuration and message templates.
  humanURL: https://developers.telnyx.com/docs/identity/verify/quickstart
  baseURL: https://api.telnyx.com/v2
  tags:
  - Verify Profiles
  properties:
  - type: OpenAPI
    url: openapi/telnyx-verify-verify-profiles-api-openapi.yml
  - type: Documentation
    url: https://developers.telnyx.com/docs/identity/verify/quickstart
  - type: APIReference
    url: https://developers.telnyx.com/api/verify/trigger-verification
  - type: PostmanCollection
    url: collections/telnyx-verify.postman_collection.json
  - type: OpenCollection
    url: collections/telnyx-verify.opencollection.json
  - type: APIReference
    url: https://developers.telnyx.com/api/verify/list-profiles
  - type: Documentation
    url: https://developers.telnyx.com/docs/identity/number-lookup/quickstart
  - type: APIReference
    url: https://developers.telnyx.com/api/number-lookup/lookup-number
common:
- type: AgenticAccess
  url: agentic-access/telnyx-verify-agentic-access.yml
- type: DomainSecurity
  url: security/telnyx-verify-domain-security.yml
- type: Authentication
  url: authentication/telnyx-verify-authentication.yml
- type: GitHubOrganization
  url: https://github.com/team-telnyx
- type: LinkedIn
  url: https://www.linkedin.com/company/telnyx
- type: Website
  url: https://telnyx.com/products/verify-api
- type: Documentation
  url: https://developers.telnyx.com/docs/identity/verify/quickstart
- type: Plans
  url: plans/telnyx-verify-plans-pricing.yml
- type: RateLimits
  url: rate-limits/telnyx-verify-rate-limits.yml
- type: FinOps
  url: finops/telnyx-verify-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com