The Postgres-based alternative to Onyx

Permission inheritance in the OSS core

AI agents are only useful on company data if they respect the same access model as the source system. Omni treats inherited permissions as a core open-source feature: permissions are baked into the OSS connector implementations, and connectors can emit document ACLs and group membership changes directly through the SDK protocol. In Onyx, comparable source permission sync is a paid feature, not part of the free OSS edition.

• Document permissions are part of the open connector event model
• Group membership sync is available to OSS connector authors
• Security review can inspect the permission pipeline directly

Postgres-based operations

Omni starts from Postgres and pgvector, which keeps the default deployment smaller and easier to reason about. The same database handles application data and retrieval for the common self-hosted path, so teams can monitor, back up, tune, and upgrade one familiar system before introducing specialized infrastructure. For teams without a dedicated platform group, fewer moving parts matter.

• Postgres-first architecture reduces infrastructure sprawl
• Lower CPU and RAM floor for small self-hosted deployments
• One familiar default database to operate, back up, monitor, and tune

Connectors built for extension

Omni supports 20+ connectors across Google Workspace, Microsoft 365, knowledge bases, collaboration tools, and project management systems. More importantly, the connector model is designed for teams to extend: standalone SDK connectors can be written in Python, TypeScript, or Rust, self-register by manifest, and expose sync, actions, OAuth, search operators, and MCP tools without merging code into the core app.

• Build connectors as standalone services instead of monolith patches
• Expose both indexed data and agent actions from the same connector contract
• Use MCP to turn existing tool servers into Omni connector capabilities

Licensing you can read in one sitting

Omni's Community edition is cleanly Apache 2.0 in one tree, and the Enterprise image is a single license away. If you are redistributing, embedding, or modifying the product, the boundary is plain: the OSS core is open, and commercial features ship in the licensed image. That keeps legal review straightforward for teams that want to build on top of the product.

• Community edition: one tree, Apache 2.0, no carve-outs
• Enterprise image: single commercial license, clear scope
• No ambiguity about what can be redistributed

Transparent self-hosted pricing

Omni's Business tier is $10/user/month billed annually, SSO included, self-hosted, and published publicly. The Community edition is free forever. Teams can start with OSS, upgrade when they need commercial features, and understand the cost before they talk to anyone. That makes pilots and security reviews easier to plan.

• Omni Business: $10/user/mo annual, SSO included, self-hosted
• Omni Community: $0, no seat minimum
• Enterprise controls can be added without changing the deployment model

Built to be extended around your workflows

Omni is open source software your team can adapt around internal tools, proprietary systems, and company-specific workflows. Build custom connectors, adjust retrieval behavior, inspect permission handling, and shape the product around the way your organization actually works. The goal is not just to search company data; it is to put AI agents to work on it.