Alternatives
10 best Keycloak alternatives
Tools that cover the same task as Keycloak (code), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.
- Keycloak starts at
- Not listed
- Free plan
- Free plan
- API
- API available
- 01
PropelAuth
PropelAuth provides authentication and org management built for B2B and AI-native products. The platform covers hosted login UIs, SAML and enterprise SSO, RBAC, API keys, and MCP authentication so teams can ship secure multi-tenant apps faster.
Best for: B2B SaaS and AI-native companies that need multi-tenant auth, enterprise SSO, and org management without building it in-house.
- 02
Mem0
Mem0 provides persistent memory infrastructure for AI agents and applications so context survives across sessions, users, and agents. The platform offers hosted plans with SDK integration plus open-source options for developers building production agents that need durable recall.
Best for: Agent builders and app teams that need hosted memory layers with defined add and retrieval quotas.
- 03
Executor
Executor is an open-source gateway that connects AI agents to the SaaS tools a team already uses, with cloud hosting and optional self-hosted enterprise deployment. It emphasizes safe tool execution, verified domains, and a single integration surface for agent workflows.
Best for: Engineering teams wiring multiple AI agents into CRMs, dev tools, and internal SaaS without rebuilding each integration per agent.
- 04
Akon Labs
Akon Labs builds GitNexus, a self-hosted knowledge graph that indexes codebases into symbols, call chains, clusters, and blast-radius analysis for AI coding agents. Open source covers local indexing while GitNexus Enterprise adds managed SaaS review features.
Best for: Engineering teams using Claude Code, Cursor, or Codex who need deterministic code graphs instead of grep-only context.
- 05
Laminar
Laminar is an open-source agent observability platform that captures LLM calls, tool calls, sub-agents, costs, and tokens, then surfaces failures through Signals and clustered failure modes. Hosted plans add retention, data limits, and support tiers for teams shipping production agents.
Best for: Engineering teams running AI agents who need trace visibility, automatic failure detection, and hosted retention without building observability in-house.
- 06
Better Auth
Better Auth is a TypeScript authentication framework that lives in your application code with plugins for sessions, social login, organizations, passkeys, API keys, and enterprise SSO. The vendor also sells managed infrastructure with dashboards, audit logs, and security detections while the core framework stays open source.
Best for: Developers building Next.js, Nuxt, SvelteKit, Hono, and other TypeScript apps who want composable auth in code plus optional hosted infrastructure.
- 07
Novu
Novu is open-source notification infrastructure for connecting AI agents and products to customers across in-app, email, SMS, push, WhatsApp, Slack, Teams, and Telegram channels. Cloud plans meter workflow runs while enterprise options add compliance, residency, and self-hosted deployment.
Best for: Product and platform teams that need multi-channel notification workflows with inbox components and usage-based scaling.
- 08
Langfuse
Langfuse is an open-source LLM engineering platform for tracing, evaluating, and improving AI agents with collaborative debugging and metrics. Langfuse Cloud offers hosted Hobby, Core, and Pro tiers metered in observability units.
Best for: AI engineers who need open-source-friendly observability and eval workflows without building tooling in-house.
- 09
Hugging Face
Hugging Face is the central collaboration platform and repository for machine learning, hosting over 1 million open-source models, datasets, and ML demonstration applications (Spaces). It provides Inference Endpoints, Spaces hosting, AutoTrain, and the Transformers library ecosystem.
Best for: Machine learning practitioners, software developers, researchers, and organizations building, hosting, and sharing open-source AI models and datasets.
- 10
Clawvisor
Clawvisor is a gatekeeper layer for AI agents that verifies each task’s purpose, injects scoped credentials, scores risk, and logs every action. It offers managed cloud or self-hosted deployment so agents can use email, calendars, and code tools without exposing full account access.
Best for: Teams running production AI agents that need least-privilege access, audit trails, and prompt-injection defenses.
Keycloak alternatives: common questions
What is the best free alternative to Keycloak?
PropelAuth has an ongoing free plan. Free plan includes 10,000 monthly active users, unlimited organizations, waitlist users, custom domain, 2FA, RBAC, and customizable hosted UIs. Free plans change, so check the vendor before relying on one.
What is the cheapest Keycloak alternative?
Hugging Face has the lowest listed starting price at $9/mo.
Which Keycloak alternatives have an API?
PropelAuth, Mem0, Executor, Akon Labs, Better Auth mention API or developer access.