Clerk website screenshot

Clerk

Clerk is a complete authentication and user management platform for web and mobile apps, providing embeddable UI components, SDKs, and REST APIs to handle sign-up and sign-in, users, organizations and memberships, sessions, multi-factor authentication, JWTs and JWT templates, JWKS, SAML/enterprise SSO, OAuth applications, and email/SMS verification. The Clerk Backend API (base https://api.clerk.com/v1, secret-key authenticated) manages these resources server-side, the Frontend API drives client auth flows, and change events are delivered as Svix-powered HTTP webhooks.

Clerk publishes 15 APIs on the APIs.io network, including Allowlist & Blocklist API, Clients API, Email & SMS API, and 12 more. Tagged areas include Authentication, User Management, Identity, Sessions, and Organizations.

Clerk’s developer surface includes authentication, documentation, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub
38.6/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-08-03 · rubric v0.9
AccessFreemiumSelf serve⚡ Free to try
15 APIs
AuthenticationUser ManagementIdentitySessionsOrganizationsSSOJWTMFA

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-03 · rubric v0.9
Composite quality — 38.6/100 · thin
Contract Quality 14.1 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
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
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/clerk-dev: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 15

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

Clerk Allowlist & Blocklist API

Identifiers permitted or denied from signing up.

Clerk Clients API

Browser / device clients tracking active sessions.

Clerk Email & SMS API

Email addresses, phone numbers, and message templates.

Clerk Invitations API

Application-level sign-up invitations.

Clerk JWKS API

Public keys for verifying Clerk-issued JWTs.

Clerk JWT Templates API

Named claim templates for custom session tokens.

Clerk OAuth Applications API

OAuth applications where Clerk is the identity provider.

Clerk Organization Invitations API

Invitations to join an organization.

Clerk Organization Memberships API

Members of an organization and their roles.

Clerk Organizations API

Multi-tenant organizations.

Clerk SAML & Enterprise Connections API

Enterprise SSO connections.

Clerk Sessions API

User sessions and session tokens.

Clerk Sign-ups & Tokens API

Sign-up attempts, sign-in tokens, and actor tokens.

Clerk Users API

Create and manage users and their identities.

Clerk Webhooks API

Svix-powered webhook portal management.

Scroll for all 15

Open Collections 1

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

Clerk Backend API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Clerk Dev Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Clerk Dev Rate Limits

10 limits

RATE LIMITS

FinOps 1

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

Clerk Dev Finops

FINOPS

Security Posture 3

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

Clerk Dev Authentication

http · 1 scheme

SECURITY

Clerk Dev Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Clerk Dev Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

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

Clerk Dev Agentic Access

80 operations · 54 acting · 5 human-in-the-loop

80 operations · 54 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 3

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 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 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: clerk-dev
url: https://raw.githubusercontent.com/api-evangelist/clerk-dev/refs/heads/main/apis.yml
name: Clerk
kind: company
description: Clerk is a complete authentication and user management platform for web and mobile apps, providing embeddable
  UI components, SDKs, and REST APIs to handle sign-up and sign-in, users, organizations and memberships, sessions, multi-factor
  authentication, JWTs and JWT templates, JWKS, SAML/enterprise SSO, OAuth applications, and email/SMS verification. The Clerk
  Backend API (base https://api.clerk.com/v1, secret-key authenticated) manages these resources server-side, the Frontend
  API drives client auth flows, and change events are delivered as Svix-powered HTTP webhooks.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · 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/clerk-dev.png
tags:
- Authentication
- User Management
- Identity
- Sessions
- Organizations
- SSO
- JWT
- MFA
created: '2026-07-02'
modified: '2026-07-02'
specificationVersion: '0.19'
apis:
- aid: clerk-dev:clerk-dev-allowlist-blocklist-api
  name: Clerk Allowlist & Blocklist API
  description: Identifiers permitted or denied from signing up.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - Allowlist & Blocklist
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-allowlist-blocklist-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
- aid: clerk-dev:clerk-dev-clients-api
  name: Clerk Clients API
  description: Browser / device clients tracking active sessions.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - Clients
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-clients-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
- aid: clerk-dev:clerk-dev-email-sms-api
  name: Clerk Email & SMS API
  description: Email addresses, phone numbers, and message templates.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - Email & SMS
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-email-sms-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
- aid: clerk-dev:clerk-dev-invitations-api
  name: Clerk Invitations API
  description: Application-level sign-up invitations.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - Invitations
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-invitations-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
- aid: clerk-dev:clerk-dev-jwks-api
  name: Clerk JWKS API
  description: Public keys for verifying Clerk-issued JWTs.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - JWKS
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-jwks-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
- aid: clerk-dev:clerk-dev-jwt-templates-api
  name: Clerk JWT Templates API
  description: Named claim templates for custom session tokens.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - JWT Templates
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-jwt-templates-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
- aid: clerk-dev:clerk-dev-oauth-applications-api
  name: Clerk OAuth Applications API
  description: OAuth applications where Clerk is the identity provider.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - OAuth Applications
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-oauth-applications-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
- aid: clerk-dev:clerk-dev-organization-invitations-api
  name: Clerk Organization Invitations API
  description: Invitations to join an organization.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - Organization Invitations
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-organization-invitations-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
- aid: clerk-dev:clerk-dev-organization-memberships-api
  name: Clerk Organization Memberships API
  description: Members of an organization and their roles.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - Organization Memberships
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-organization-memberships-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
- aid: clerk-dev:clerk-dev-organizations-api
  name: Clerk Organizations API
  description: Multi-tenant organizations.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - Organizations
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-organizations-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
- aid: clerk-dev:clerk-dev-saml-enterprise-connections-api
  name: Clerk SAML & Enterprise Connections API
  description: Enterprise SSO connections.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - SAML & Enterprise Connections
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-saml-enterprise-connections-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
- aid: clerk-dev:clerk-dev-sessions-api
  name: Clerk Sessions API
  description: User sessions and session tokens.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - Sessions
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-sessions-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
- aid: clerk-dev:clerk-dev-sign-ups-tokens-api
  name: Clerk Sign-ups & Tokens API
  description: Sign-up attempts, sign-in tokens, and actor tokens.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - Sign-ups & Tokens
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-sign-ups-tokens-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
- aid: clerk-dev:clerk-dev-users-api
  name: Clerk Users API
  description: Create and manage users and their identities.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-users-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
- aid: clerk-dev:clerk-dev-webhooks-api
  name: Clerk Webhooks API
  description: Svix-powered webhook portal management.
  humanURL: https://clerk.com/docs/reference/backend-api/tag/Users
  baseURL: https://api.clerk.com/v1
  tags:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/clerk-dev-webhooks-api-openapi.yml
  - type: Documentation
    url: https://clerk.com/docs/reference/backend-api
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Users
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organizations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Memberships
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Organization-Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sessions
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Clients
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Sign-in-Tokens
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWT-Templates
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/JWKS
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Email-Addresses
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Allow-list-Block-list
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Invitations
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/SAML-Connections
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/OAuth-Applications
  - type: Documentation
    url: https://clerk.com/docs/webhooks/overview
  - type: APIReference
    url: https://clerk.com/docs/reference/backend-api/tag/Webhooks
common:
- type: AgenticAccess
  url: agentic-access/clerk-dev-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/clerk-dev-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/clerk-dev-domain-security.yml
- type: Authentication
  url: authentication/clerk-dev-authentication.yml
- type: GitHubOrganization
  url: https://github.com/clerk
- type: LinkedIn
  url: https://www.linkedin.com/company/clerkinc
- type: Website
  url: https://clerk.com/
- type: Documentation
  url: https://clerk.com/docs
- type: Plans
  url: plans/clerk-dev-plans-pricing.yml
- type: RateLimits
  url: rate-limits/clerk-dev-rate-limits.yml
- type: FinOps
  url: finops/clerk-dev-finops.yml
- url: https://clerk.com/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
Where this information came from

This is an independent, third-party profile of Clerk, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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