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Auth0 vs Issuerd
Auth0 is a hosted SaaS solution, while Issuerd is self-hosted and Rust-based.
Auth0Authentication and authorization platform
IssuerdFast, Keycloak-compatible IAM with DPoP and CIBAWhich to pick
Pick Auth0 if you want…
- Unified identity platform for apps and AI agents
- Managed cloud authentication
- Integrations with Okta universal logout (on Auth0's list, not Issuerd's)
Pick Issuerd if you want…
- Keycloak-compatible IAM in Rust
- A free, open-source tool
- Integrations with PostgreSQL, Redis or LDAP/Active Directory (on Issuerd's list, not Auth0's)
Side by side
- What it is
- Auth0:Auth0 provides scalable authentication and authorization for apps, APIs, and AI agents.
- Issuerd:Issuerd is an open-source, Keycloak-compatible IAM server written in Rust that provides OIDC/OAuth2, DPoP, CIBA and token exchange.
- Best for
- Auth0:Unified identity platform for apps and AI agents
- Issuerd:Keycloak-compatible IAM in Rust
- Who it’s for
- Auth0:Developers building B2C, B2B SaaS, AI agents, or machine-to-machine services.
- Issuerd:Teams needing self-hosted, standards-compliant identity and access management.
- Pricing
- Auth0:Freemium
- Issuerd:Open source
- Plans
- Auth0:Free $0 · Essentials $35 per month · Professional $240 per month
- Issuerd:—
- Open source
- Auth0:—
- Issuerd:Yes, 70 GitHub stars
- Works with
- Auth0:Okta universal logout
- Issuerd:PostgreSQL, Redis, LDAP/Active Directory
Auth0 features
- Universal Login. Customizable login experience with passwordless, social, and adaptive MFA.
- Single Sign-On. Enterprise federation and cross-app SSO for human users and AI agents.
- Machine-to-Machine Auth. Short-lived tokens, client-credentials flow and M2M add-ons for services.
- Fine-Grained Authorization. Scalable APIs for granular access control, including RAG and AI contexts.
- Token Vault & MCP Auth. Secure storage of tokens and authorization for model-context protocols.
- Extensibility via Actions & Forms. Serverless hooks and no-code visual editor to extend login flows.
Issuerd features
- OpenID Certified. Provides OpenID Certified support for 11 OP profiles with zero conformance failures.
- Keycloak-compatible API. Implements Keycloak’s domain model and Admin REST API for drop-in compatibility.
- DPoP & Token Exchange. Supports RFC 9449 DPoP sender-constrained tokens and RFC 8693 token exchange for agents.
- CIBA Poll Mode. Enables human-in-the-loop step-up approvals via CIBA poll mode.
- LDAP/AD Federation. Synchronizes users and groups from LDAP/Active Directory with fast import performance.
- Single Binary Deployment. Runs as one self-contained Rust binary with Docker images, no JVM required.
Auth0 vs Issuerd FAQ
Is Auth0 or Issuerd free?+
Auth0 has a free plan; paid plans start at $35/month (Essentials). Issuerd is free and open source.
Which is cheaper, Auth0 or Issuerd?+
Issuerd is free, so it costs less. Auth0 starts at $35/month (Essentials).
Is Auth0 or Issuerd open source?+
Issuerd is open source (issuerd/issuerd on GitHub, Apache-2.0 license). DevHunt has no public source repository on record for Auth0.
Do Auth0 and Issuerd integrate with the same tools?+
Their integration lists don't overlap: Auth0 lists Okta universal logout; Issuerd lists PostgreSQL, Redis and LDAP/Active Directory.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.