API Evangelist area
Authentication
399 related providers on APIs.io
Explore the full Authentication area →
Authentication is one of the API Evangelist areas on the APIs.io network — a focused corner of the API landscape. The full area lives at authentication.apievangelist.com.
30 providers on the network work in this area, including Twilio, Zoho CRM, Kinde, Appwrite, Microsoft Entra ID (formerly Azure AD), Kit, and 24 more — each links out to that provider’s APIs, schemas, and governance artifacts.
Related areas: AI Automation, Agents, Communications, and Agent Skills. Browse every area at areas.apis.io.
About this area
A curated index of services, tooling, and open source solutions for API authentication, authorization, identity management, and secrets management. This collection covers identity…
Related providers (399)
Top 30 of 399 network providers tagged for this area — search the full set on apis.io.
| Provider | Description | APIs | Rating |
|---|---|---|---|
| Twilio | Cloud communications platform providing APIs for SMS, voice, video, and authentication services. Twilio offers 30+ APIs covering messaging, voice, video, email, identity verific... | 55 | exemplar |
| Zoho CRM | Zoho CRM is Zoho Corporation's AI-powered sales and customer relationship management platform, used to manage leads, contacts, accounts, deals, activities and customer engagemen... | 105 | exemplar |
| Kinde | Kinde is a developer-first authentication and customer identity platform that bundles authentication (passwords, passwordless, social, enterprise SSO), authorization (roles, per... | 2 | exemplar |
| Appwrite | Appwrite is an open-source backend platform for web, mobile and AI applications, shipped both as a self-hostable BSD-3-Clause server and as the managed Appwrite Cloud. One REST ... | 2 | exemplar |
| Microsoft Entra ID (formerly Azure AD) | Microsoft's cloud-based identity and access management service that helps employees sign in and access resources. Azure AD provides OAuth, OpenID Connect, SAML, and other identi... | 9 | exemplar |
| Kit | Kit (formerly ConvertKit) is a creator email marketing platform whose REST API v4 covers subscribers, tags, custom fields, forms and landing pages, sequences, broadcasts, snippe... | 2 | exemplar |
| Cvent Registration | Cvent Registration is the event registration product within the Cvent Event Cloud, providing online registration websites, attendee data capture, payment processing, registratio... | 2 | exemplar |
| Cvent | Cvent is a leading meetings, events, and hospitality technology provider with over 4,800 employees and 22,000+ customers worldwide. The Cvent platform spans Event Cloud (event m... | 2 | exemplar |
| drchrono | drchrono, part of EverCommerce's EverHealth portfolio, is an all-in-one EHR, practice management and medical billing platform for independent US medical practices. It publishes ... | 2 | exemplar |
| Okta | Okta is the workforce identity incumbent — its Identity Cloud platform (also called the Okta Workforce Identity Platform) covers Single Sign-On, Adaptive MFA, Universal Director... | 2 | exemplar |
| Aembit | Aembit is a Workload Identity and Access Management (Workload IAM) platform for non-human identities — AI agents, applications, microservices, CI/CD pipelines, scripts and servi... | 2 | exemplar |
| Telesign | Telesign provides a comprehensive suite of communications and security APIs enabling businesses to verify phone numbers, send SMS, omnichannel and voice messages, and assess fra... | 28 | exemplar |
| Cvent Event Cloud | Cvent Event Cloud is the event management product line of the Cvent Platform. It supports the full event lifecycle: event creation, registration, marketing, agenda and session m... | 2 | exemplar |
| Tvarka ATK API | A single REST API estate for Lithuanian eID authentication and qualified electronic signing (QES). The ATK API reads the Lithuanian identity card itself - physical smart-card re... | 4 | exemplar |
| Clerk | Clerk is a complete user management and authentication infrastructure platform offering embeddable UI components, flexible APIs, and admin dashboards. It provides full-stack aut... | 7 | exemplar |
| Auth0 | Auth0 (now part of Okta) is a leading identity-as-a-service platform providing authentication and authorization for applications, APIs, and AI agents. It implements OpenID Conne... | 3 | exemplar |
| Authentik | Authentik is an open source identity provider from Authentik Security Inc., a public benefit company, exposing a 1,193-operation REST API at /api/v3 on every self-hosted instanc... | 1 | exemplar |
| AWeber | AWeber is an email marketing and automation platform for small businesses, creators, and entrepreneurs providing email broadcasts, drip campaigns, landing pages, sign-up forms, ... | 5 | exemplar |
| Strivacity | Strivacity is a customer identity and access management (CIAM) vendor that runs a single-tenant, dedicated-cloud identity platform for consumer, partner, B2B and — since its Age... | 8 | exemplar |
| Cisco XDR | Cisco XDR is Cisco's extended detection and response platform, the successor to SecureX. It correlates telemetry from Cisco Secure Endpoint, Secure Firewall, Umbrella, Duo, Secu... | 12 | exemplar |
| Immutable | Immutable is a games growth and blockchain infrastructure company whose platform spans two connected halves: Immutable Audience, a games-focused CDP, attribution and player-acti... | 2 | exemplar |
| Lacuna | Lacuna (lacuna.fm), operated by JOYLINK LTD, is an AI music creation platform that turns lyrics or a plain-text style description into complete songs with vocals, alongside lyri... | 2 | strong |
| Amazon Cognito | Amazon Cognito is a fully managed AWS user identity and authentication service that adds sign-up, sign-in, and access control to web and mobile applications, scaling to millions... | 2 | strong |
| Zuplo | Zuplo is the API management platform for developers. Build, deploy, and scale APIs faster with Zuplo. | 1 | strong |
| Taskfolk | Taskfolk is a project-management and issue-tracking platform built for teams and their AI agents working side by side, operated by UTTER L.L.C-FZ of Dubai, UAE. Workspaces conta... | 2 | strong |
| Cvent Hospitality Cloud | Cvent Hospitality Cloud is the hotel and venue product line of the Cvent Platform. It includes the Cvent Supplier Network (the marketplace connecting event planners with hotels ... | 17 | strong |
| Kraken | Kraken is one of the world's largest and longest-running cryptocurrency exchanges, founded in 2011 and headquartered in San Francisco. Kraken offers Spot and Futures trading, st... | 1 | strong |
| Hootsuite | Hootsuite is a social media management platform that lets organizations schedule posts, monitor conversations, run paid campaigns, and analyze performance across LinkedIn, X (Tw... | 8 | strong |
| Playable | Playable (formerly Leadfamly, Playable ApS, Aarhus Denmark and London UK) is a self-service marketing gamification platform used by brands to build, publish and measure interact... | 1 | strong |
| Gluu | Gluu is a technology company that specializes in providing identity and access management solutions for businesses. Their platform allows organizations to centrally manage the a... | 12 | strong |
Related areas
AI Automation (2 shared)
Agents (2 shared)
Communications (2 shared)
Agent Skills (1 shared)
Database (1 shared)
Gateway (1 shared)
Markets provisional
Kin Score markets whose measured providers carry this area. Share is the fraction of the market's measured providers that carry it — it describes the market, not this area.
| Market | Share of the market's providers |
|---|---|
| Identity and Auth | 100% |
| Legal and E-Signature | 12% |
| Security (EDR, SIEM, SOAR) | 12% |
| US Open Banking (FDX) | 12% |
Cohort brief
Auto-generatedThe 30 providers in the APIs.io catalog working in Authentication, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
30
all scored
Mean Kin Score
72
+49.8 vs catalog 22.2
Mean Agent Readiness
47.2
+35.2 vs catalog 12
Spread
62.9–91.6
median 70.5 · σ 7.2
How the 30 split by band
Exemplar 21Strong 9Developing 0Thin 0Emerging 0Minimal 0
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Operational Transparency | 72.7 | 13 | +59.7 | 30 |
| Access Clarity | 79 | 23.9 | +55.1 | 30 |
| Developer Ergonomics | 72.2 | 23.2 | +49 | 30 |
| Contract Quality | 63.7 | 17.2 | +46.5 | 30 |
| Contract Governance | 25.6 | 6.5 | +19.1 | 30 |
| Discoverability | 74.7 | 57.9 | +16.8 | 30 |
A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.
What this cohort publishes
| Artifact | This cohort | Catalog | Difference |
|---|---|---|---|
| MCP server (any) | 77% | 13% | +64 |
| MCP server (first-party) | 67% | 12% | +55 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 73% | 11% | +62 |
| Security | 100% | 98% | +2 |
| Arazzo workflows | 33% | 2% | +31 |
| Governance rules | 47% | 16% | +31 |
mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.
Top by Kin Score
- 1 Twilio 91.6
- 2 Zoho CRM 84.4
- 3 Kinde 82.4
- 4 Appwrite 82.3
- 5 Microsoft Entra ID (formerly Azure AD) 81.8
- 6 Kit 79.7
- 7 Cvent Registration 77.2
- 8 Cvent 77.1
- 9 drchrono 77
- 10 Okta 73.8
Top by Agent Readiness
- 1 Taskfolk 69.1
- 2 Kit 64.4
- 3 Immutable 59.5
- 4 Lacuna 58.1
- 5 Zuplo 57.3
- 6 Cvent Hospitality Cloud 57.2
- 7 Microsoft Entra ID (formerly Azure AD) 55.1
- 8 Twilio 53.7
- 9 Appwrite 53.5
- 10 Aembit 52.7
All 30 members of this roster resolve to a scored provider in
the catalog.Generated from the catalog build of
24 October 2026, across 31984
providers, using the same computation served by the
APIs.io cohort API. Briefs are published for rosters of
5 or more scored providers; below that a distribution is not meaningful.
Work with this as data
Every area here is available over the APIs.io API and to AI agents over MCP.