Telnyx Verify API website screenshot

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
35.6/100 thin ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
AccessPaid
1 APIs
Number VerificationPhone VerificationOTP2FALookupVerifyNumber LookupCNAMIdentityAnti-Fraud

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Composite quality — 35.6/100 · thin
Contract Quality 10.9 / 19
Developer Ergonomics 3.4 / 15
Access Clarity 5.9 / 15
Operational Transparency 3.3 / 10
Contract Governance 0.0 / 9
Discoverability 5.1 / 8
Regulatory Posture 2.5 / 15
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 20/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
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
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Regulatory Posture applies to this provider. Its tags matched the Telecommunications regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/telnyx-verify: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

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 5

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

API Collection

OPEN COLLECTION

Telnyx Verify and Number Lookup API

OPEN COLLECTION

Telnyx and Number Lookup Verify API

OPEN COLLECTION

Telnyx Verify and Number Lookup Verify Profiles API

OPEN COLLECTION

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.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  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: '0.23'
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
x-parent: telnyx
x-relationship: product

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