FusionAuth
FusionAuth is a developer-focused customer identity and access management (CIAM) platform that delivers authentication, authorization, registration, multi-factor authentication, single sign-on, OAuth2 and OpenID Connect, and user management capabilities through a comprehensive REST API and self-hostable identity service.
FusionAuth publishes 37 APIs on the APIs.io network, including Api Key API, Application API, Connector API, and 34 more. Tagged areas include Authentication, Authorization, Identity, CIAM, and OpenID Connect.
FusionAuth’s developer surface includes authentication, getting-started guide, changelog, engineering blog, signup flow, pricing, and 12 more developer resources.
Kin Score
APIs 37
Individual APIs this provider publishes, each with its own machine-readable definition.
FusionAuth Api Key API
The Api Key API from FusionAuth — 2 operation(s) for api key.
FusionAuth Application API
The Application API from FusionAuth — 8 operation(s) for application.
FusionAuth Connector API
The Connector API from FusionAuth — 2 operation(s) for connector.
FusionAuth Consent API
The Consent API from FusionAuth — 3 operation(s) for consent.
FusionAuth Email API
The Email API from FusionAuth — 5 operation(s) for email.
FusionAuth Entity API
The Entity API from FusionAuth — 10 operation(s) for entity.
FusionAuth Form API
The Form API from FusionAuth — 4 operation(s) for form.
FusionAuth Group API
The Group API from FusionAuth — 5 operation(s) for group.
FusionAuth Health API
The Health API from FusionAuth — 1 operation(s) for health.
FusionAuth Identity API
The Identity API from FusionAuth — 4 operation(s) for identity.
FusionAuth Identity Provider API
The Identity Provider API from FusionAuth — 9 operation(s) for identity provider.
FusionAuth Integration API
The Integration API from FusionAuth — 1 operation(s) for integration.
FusionAuth Ip Acl API
The Ip Acl API from FusionAuth — 4 operation(s) for ip acl.
FusionAuth Jwt API
The Jwt API from FusionAuth — 7 operation(s) for jwt.
FusionAuth Key API
The Key API from FusionAuth — 7 operation(s) for key.
FusionAuth Lambda API
The Lambda API from FusionAuth — 3 operation(s) for lambda.
FusionAuth Login API
The Login API from FusionAuth — 2 operation(s) for login.
FusionAuth Logout API
The Logout API from FusionAuth — 1 operation(s) for logout.
FusionAuth Message API
The Message API from FusionAuth — 3 operation(s) for message.
FusionAuth Messenger API
The Messenger API from FusionAuth — 2 operation(s) for messenger.
FusionAuth Oauth2 API
The Oauth2 API from FusionAuth — 7 operation(s) for oauth2.
FusionAuth Passwordless API
The Passwordless API from FusionAuth — 3 operation(s) for passwordless.
FusionAuth Reactor API
The Reactor API from FusionAuth — 2 operation(s) for reactor.
FusionAuth Report API
The Report API from FusionAuth — 5 operation(s) for report.
FusionAuth Status API
The Status API from FusionAuth — 1 operation(s) for status.
FusionAuth System API
The System API from FusionAuth — 11 operation(s) for system.
FusionAuth System Configuration API
The System Configuration API from FusionAuth — 1 operation(s) for system configuration.
FusionAuth Tenant API
The Tenant API from FusionAuth — 5 operation(s) for tenant.
FusionAuth Tenant Manager API
The Tenant Manager API from FusionAuth — 2 operation(s) for tenant manager.
FusionAuth Theme API
The Theme API from FusionAuth — 3 operation(s) for theme.
FusionAuth Two Factor API
The Two Factor API from FusionAuth — 7 operation(s) for two factor.
FusionAuth User Action API
The User Action API from FusionAuth — 2 operation(s) for user action.
FusionAuth User Action Reason API
The User Action Reason API from FusionAuth — 2 operation(s) for user action reason.
FusionAuth User API
The User API from FusionAuth — 29 operation(s) for user.
FusionAuth Webauthn API
The Webauthn API from FusionAuth — 8 operation(s) for webauthn.
FusionAuth Webhook API
The Webhook API from FusionAuth — 3 operation(s) for webhook.
FusionAuth .well Known API
The .well Known API from FusionAuth — 2 operation(s) for .well known.
Scroll for all 37
Open Collections 38
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONFusionAuth Api Key API
OPEN COLLECTIONFusionAuth Api Key Application API
OPEN COLLECTIONFusionAuth Api Key Connector API
OPEN COLLECTIONFusionAuth Api Key Consent API
OPEN COLLECTIONFusionAuth Api Key Email API
OPEN COLLECTIONFusionAuth Api Key Entity API
OPEN COLLECTIONFusionAuth Api Key Form API
OPEN COLLECTIONFusionAuth Api Key Group API
OPEN COLLECTIONFusionAuth Api Key Health API
OPEN COLLECTIONFusionAuth Api Key Identity API
OPEN COLLECTIONFusionAuth Api Key Identity Provider API
OPEN COLLECTIONFusionAuth Api Key Integration API
OPEN COLLECTIONFusionAuth Api Key Ip Acl API
OPEN COLLECTIONFusionAuth Api Key Jwt API
OPEN COLLECTIONFusionAuth Api Key API
OPEN COLLECTIONFusionAuth Api Key Lambda API
OPEN COLLECTIONFusionAuth Api Key Login API
OPEN COLLECTIONFusionAuth Api Key Logout API
OPEN COLLECTIONFusionAuth Api Key Message API
OPEN COLLECTIONFusionAuth Api Key Messenger API
OPEN COLLECTIONFusionAuth Api Key Oauth2 API
OPEN COLLECTIONFusionAuth Api Key Passwordless API
OPEN COLLECTIONFusionAuth Api Key Reactor API
OPEN COLLECTIONFusionAuth Api Key Report API
OPEN COLLECTIONFusionAuth Api Key Status API
OPEN COLLECTIONFusionAuth Api Key System API
OPEN COLLECTIONFusionAuth Api Key System Configuration API
OPEN COLLECTIONFusionAuth Api Key Tenant API
OPEN COLLECTIONFusionAuth Api Key Tenant Manager API
OPEN COLLECTIONFusionAuth Api Key Theme API
OPEN COLLECTIONFusionAuth Api Key Two Factor API
OPEN COLLECTIONFusionAuth Api Key User Action API
OPEN COLLECTIONFusionAuth Api Key User Action Reason API
OPEN COLLECTIONFusionAuth Api Key User API
OPEN COLLECTIONFusionAuth Api Key Webauthn API
OPEN COLLECTIONFusionAuth Api Key Webhook API
OPEN COLLECTIONFusionAuth Api Key .well Known API
OPEN COLLECTIONScroll for all 38
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
MCP Server
MCP SERVERAgent Skills 14
Packaged agent skills for driving this provider's APIs from an AI assistant.
chargebee-webhooks
AGENT SKILLclerk-webhooks
AGENT SKILLdeepgram-webhooks
AGENT SKILLelevenlabs-webhooks
AGENT SKILLfusionauth-webhooks
AGENT SKILLgithub-webhooks
AGENT SKILLhookdeck-event-gateway
AGENT SKILLopenai-webhooks
AGENT SKILLpaddle-webhooks
AGENT SKILLresend-webhooks
AGENT SKILLsendgrid-webhooks
AGENT SKILLshopify-webhooks
AGENT SKILLstripe-webhooks
AGENT SKILLwebhook-handler-patterns
AGENT SKILLScroll for all 14
Pricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Fusionauth Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Fusionauth Finops
FINOPSSecurity Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 3
Portal, sign-up, and the first successful call
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 4
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API