Authy

Authy is a two-factor authentication (2FA) product originally built by Authy Inc. and acquired by Twilio in 2015. It provided a consumer authenticator app (TOTP soft tokens, encrypted cloud backup, and multi-device sync) alongside a developer-facing Authy API for one-time passwords over SMS and voice, soft tokens, and push authentication. Twilio has since folded the Authy developer API into the Twilio Verify API, deprecated and archived the first-party Authy client SDKs, and discontinued the Authy desktop applications in 2024. The consumer Authy mobile app remains available. New integrations are directed to Twilio Verify. This profile was surfaced as a portfolio-company lead and is enriched here from Authy's remaining public surface (marketing site, archived GitHub organization, and deprecated SDK registries).

Authy is profiled on the APIs.io network. Tagged areas include Company, Authentication, Two-Factor Authentication, 2FA, and Identity.

Authy’s developer surface includes documentation, support, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

11.0/100 emerging ▬ flat Agent 0/100 human only library Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

Company Authentication Two-Factor Authentication 2FA Identity SecurityOne-Time PasswordTOTP VerificationPush Authentication

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 11.0/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 4.3 / 20

Access Clarity 0.0 / 20

Operational Transparency 1.7 / 13

Contract Governance 0.0 / 12

Discoverability 5.0 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 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

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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Security Posture 1

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

Authy Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

Deprecation

Deprecation

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

ParentCompany

ParentCompany

Source (apis.yml)

aid: authy
name: Authy
description: Authy is a two-factor authentication (2FA) product originally built by Authy Inc. and acquired by Twilio in 2015.
  It provided a consumer authenticator app (TOTP soft tokens, encrypted cloud backup, and multi-device sync) alongside a developer-facing
  Authy API for one-time passwords over SMS and voice, soft tokens, and push authentication. Twilio has since folded the Authy
  developer API into the Twilio Verify API, deprecated and archived the first-party Authy client SDKs, and discontinued the
  Authy desktop applications in 2024. The consumer Authy mobile app remains available. New integrations are directed to Twilio
  Verify. This profile was surfaced as a portfolio-company lead and is enriched here from Authy's remaining public surface
  (marketing site, archived GitHub organization, and deprecated SDK registries).
url: https://raw.githubusercontent.com/api-evangelist/authy/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- dcvc
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: library
  open_source: false
  commercial: false
  callable_host: false
  label: Library · distributed through package registries, no callable service
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
image: https://avatars.githubusercontent.com/u/109142?v=4
tags:
- Company
- Authentication
- Two-Factor Authentication
- 2FA
- Identity
- Security
- One-Time Password
- TOTP
- Verification
- Push Authentication
apis: []
common:
- type: ParentCompany
  url: https://apis.io/providers/twilio/
  name: Twilio
  x-relationship: acquired
  x-evidence: and acquired by Twilio in 2015.
- url: https://www.authy.com
  type: Website
- url: https://www.twilio.com/en-us/user-authentication-identity/verify
  type: Documentation
- url: https://github.com/twilio
  type: GitHubOrganization
- url: https://help.twilio.com
  type: Support
- url: packages/authy-packages.yml
  type: Packages
- url: packages/authy-packages.yml
  type: SDKs
- url: lifecycle/authy-lifecycle.yml
  type: Lifecycle
- url: lifecycle/authy-lifecycle.yml
  type: Deprecation
- url: security/authy-domain-security.yml
  type: DomainSecurity
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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