Alternative

SharkAuth vs Casdoor.

Casdoor is a mature, open-source IAM with 13.6k stars, 1,859 releases, and broad enterprise protocol support. SharkAuth is a single-binary identity platform built ground-up for AI agents. If you need agent delegation chains, DPoP by default, and zero-config deployment, this comparison is for you.

What is SharkAuth?

SharkAuth is an open-source identity platform built for the agentic era. It ships as a single ~29 MB Go binary with embedded SQLite, requires zero dependencies, and implements OAuth 2.1, OIDC, RFC 8693 Token Exchange, and RFC 9449 DPoP — all zero-config. Self-host free forever under MIT license.

Head-to-head comparison

Feature
SharkAuth Logo SharkAuth
Casdoor
PositioningAgent-native from day oneAI pivot on enterprise IAM
Architecture / deploymentSingle ~29 MB Go binaryGo backend + React + database
Binary size / dependencies~29 MB, zero depsMulti-service, needs DB
OAuth 2.1 / OIDCFull implementationFull implementation
RFC 8693 Token ExchangeFull implementationNot documented
DPoP (RFC 9449)Native / defaultNot documented
SAML 2.0 / LDAP / SCIMNot yetYes (native)
Agent identity primitivesFirst-class (core model)Recent add-on (MCP Gateway)
Cascade revocation< 12 ms p99Not documented
MCP GatewayOn roadmapAvailable (recent addition)
Deployment complexityOne binary, zero configDocker / K8s / source build
LicenseMIT licenseApache 2.0
Community / starsGrowing (v0.1.0)13.6k stars, 10+ years
Choose SharkAuth if...
  • → You build AI agent systems with delegation chains
  • → You need a single binary that runs on a $5 VPS
  • → You want DPoP and RFC 8693 token exchange out of the box
  • → You prefer zero-configuration deployment
  • → You need air-gapped or edge environments
Choose Casdoor if...
  • → You need SAML 2.0, LDAP, or SCIM federation
  • → You want a mature ecosystem with 13.6k stars
  • → You require multi-tenancy and RBAC via Casbin
  • → You need an MCP Gateway today
  • → You prefer a full-stack UI + API solution

By the numbers

~29 MB
Binary size
vs. Casdoor: multi-service deploy
< 12 ms
Cascade revocation p99
Casdoor: not documented
0
External dependencies
Casdoor: requires database + frontend
13.6k
GitHub stars
Casdoor: 10+ years of ecosystem

Frequently asked questions

Is SharkAuth a drop-in replacement for Casdoor?

Not for every use case. Casdoor has 10+ years of ecosystem maturity, including SAML 2.0, LDAP, SCIM, and a full React management UI. SharkAuth covers OAuth 2.1, OIDC, passkeys, SSO, and webhooks — enough for modern API-first and agentic applications. If you need enterprise directory federation or a built-in MCP Gateway today, Casdoor remains the safer choice.

Does Casdoor support agent delegation like SharkAuth?

Casdoor recently added AI-focused features including an MCP Gateway and A2A Protocol support, but these are additions to a general-purpose IAM architecture. SharkAuth was designed from the ground up with agent identity primitives — may_act_grants, actor chains, and cascade revocation — as core features, not add-ons.

Which is easier to deploy: SharkAuth or Casdoor?

SharkAuth ships as a single static binary with embedded SQLite. You download it, run it, and it works — no database setup, no frontend build, no Docker required. Casdoor offers Docker and Kubernetes Helm charts, but still requires a separate database (MySQL, PostgreSQL, or SQLite) and a multi-service deployment.

What does Casdoor have that SharkAuth lacks?

Casdoor has a massive community (13.6k stars), a mature React admin UI, native SAML 2.0 and LDAP support, SCIM 2.0 provisioning, multi-tenancy with Casbin RBAC, and a recently added MCP Gateway. SharkAuth intentionally skipped these to ship agent-native primitives first. Both are open source, so you can self-host either for free.

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