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Onyx

onyx.app

From $20/mo Free plan Open source WebWindowsmacOSLinuxAPISelf-hosted
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Spec score 8.9 #3 of 26 in AI Enterprise Search Software

What it is

Onyx connects enterprise knowledge so people and AI agents can use relevant context in answers. It searches indexed sources in parallel and presents documents while enforcing each source's permissions. More than 50 connectors sync connected tools in the background and support hybrid semantic and keyword search. The Business plan lists chat and search, major LLM access, custom agents, MCP/OpenAPI actions, web search, deep research, code interpreter, and image generation. Business costs $20 a month, billed annually at $20 per user per month, for teams of any size, with 40+ app connectors and Community Support. Onyx provides APIs for messages, agents, LLM management, actions, and user authentication. Slack integrations can provide responses and agents; Microsoft Teams and Zendesk are described as coming soon. Deployments can run in a customer's cloud or on bare metal, including on-premise and fully air-gapped environments. The site says documents and embeddings can remain in customer infrastructure, data is not used for training, and permissions are checked at query time. Native Windows, macOS, and Linux apps connect to an existing deployment.

Spec sheet

What it does
Onyx connects organizational knowledge sources to chat, search, agents and AI workflows, acting as a context layer for people and agents.Read 20 Oct 2026 · docs.onyx.app
Purpose
Onyx connects enterprise knowledge to give humans and agents context for AI answers.Read 7 Oct 2026 · onyx.app
Intended users
Onyx describes use across company-wide teams, engineering, sales, and support.Read 7 Oct 2026 · onyx.app
Deployment
Onyx can run as self-hosted Standard or Lite, in Docker Compose, Kubernetes/Helm or cloud infrastructure, and is also offered as managed Onyx Cloud.Read 20 Oct 2026 · docs.onyx.app
Free plan
YesRead 21 Sep 2026 · onyx.app
API
Nearly every feature is exposed through a REST API using JSON, with Bearer API keys or personal access tokens and an OpenAPI explorer at /api/docs.Read 20 Oct 2026 · docs.onyx.app
Integrations
The product advertises more than 50 synced connectors and names Slack, Google Drive, Confluence, Salesforce, GitHub and Jira among supported sources.Read 20 Oct 2026 · onyx.app
Security
The site says documents and embeddings can stay in the customer's infrastructure, data is not used for training, and source permissions are enforced at query time.Read 7 Oct 2026 · onyx.app
Support
The Business plan includes Community Support; Enterprise lists Dedicated Support and an Enterprise SLA.Read 7 Oct 2026 · onyx.app
Founded
G2 lists Onyx AI as serving customers since 2023 and gives 2023 as its founding year.Read 20 Oct 2026 · g2.com
Actions and MCP
Five built-in actions cover internal search, web search, Python code execution, image generation and a beta coding agent; additional actions use OpenAPI or MCP with token or OAuth authentication.Read 20 Oct 2026 · docs.onyx.app
API permissions
API keys act as service accounts whose group memberships control chat, search, agent, connector and administrative access; custom groups are Enterprise-only.Read 20 Oct 2026 · docs.onyx.app
Chat
The chat interface supports file and URL context, model selection, citations, projects, sharing and multiple AI actions.Read 20 Oct 2026 · docs.onyx.app
Chrome extension
The Chrome extension provides new-tab search, a sidebar, selected-text queries and keyboard shortcuts, with full-page questioning listed as future functionality.Read 20 Oct 2026 · docs.onyx.app
Company founders
Crunchbase lists Chris Weaver and Yuhong Sun as founders.Read 20 Oct 2026 · crunchbase.com
Company legal name
Crunchbase identifies the legal entity as DanswerAI Inc., formerly known as DanswerAI and Danswer.Read 20 Oct 2026 · crunchbase.com
Company location and size
Crunchbase places the company in San Francisco, California, United States and lists 11–50 employees.Read 20 Oct 2026 · crunchbase.com
Connector behavior
Connectors sync data in the background and support hybrid semantic and keyword search across connected sources.Read 7 Oct 2026 · onyx.app
Connectors
Onyx keeps connected application data synchronized and can enforce source permissions in Enterprise Edition; documents can also be pushed through API or file upload.Read 20 Oct 2026 · docs.onyx.app
Custom agents
Users can define agents with natural-language instructions, scoped connector or uploaded knowledge and selected actions, then share them with users or groups.Read 20 Oct 2026 · docs.onyx.app
Deep research
Deep Research runs repeated reasoning, research and action cycles, can take several minutes and may consume more than ten times normal inference tokens.Read 20 Oct 2026 · docs.onyx.app
Desktop apps
Official documentation provides downloads for Windows EXE, macOS DMG and Linux DEB, with additional MSI, RPM and tarball formats via GitHub Releases.Read 20 Oct 2026 · docs.onyx.app
Desktop platforms
The native desktop app is available for Windows, macOS, and Linux and connects to an existing Onyx deployment.Read 7 Oct 2026 · onyx.app
Developer API
Onyx supports APIs for messages, agents, LLM management, actions, and user authentication.Read 7 Oct 2026 · onyx.app
Documentation depth
The documentation includes feature guides, API authentication and reference guidance, Docker, Helm, Terraform, cloud deployment, security hardening, authentication and release notes.Read 20 Oct 2026 · docs.onyx.app
Features
The Business plan lists chat and search, major LLM access, custom agents, MCP/OpenAPI actions, web search, deep research, code interpreter, and image generation.Read 7 Oct 2026 · onyx.app
File uploads
YesRead 21 Sep 2026 · onyx.app
Funding
Crunchbase describes Onyx as a private seed company with two funding rounds and names First Round Capital and Khosla Ventures among investors.Read 20 Oct 2026 · crunchbase.com
Image generation
YesRead 21 Sep 2026 · onyx.app
Independent review availability
G2 says Onyx AI has not been reviewed yet and has insufficient reviews to provide buying insight.Read 20 Oct 2026 · g2.com
Internal search
Connectors index documents, metadata and permissions so users can search company knowledge with filters for dates, authors, tags and source types.Read 20 Oct 2026 · docs.onyx.app
Licence
The Community Edition is free under the MIT license, while Enterprise Edition adds proprietary features for larger organizations.Read 20 Oct 2026 · github.com
Limit: operational complexity
Standard self-hosting uses multiple services including PostgreSQL, OpenSearch, Redis, background workers and model servers, with documented baseline allocations totaling about 12 CPU and 24 GB memory.Read 20 Oct 2026 · docs.onyx.app
Limit: permission controls
User-level permission-aware retrieval and connector permission synchronization are restricted to Enterprise Edition.Read 20 Oct 2026 · docs.onyx.app
Limit: URL access
Chat cannot retrieve URLs protected by logins, captchas or paywalls unless an appropriate connector is used.Read 20 Oct 2026 · docs.onyx.app
Mobile availability
A native mobile app is still under development; current mobile access uses the responsive web application in a browser.Read 20 Oct 2026 · docs.onyx.app
Notable news
The October 7, 2026 release added OneDrive with permission sync, expanded Teams indexing, Google Cloud Terraform modules and per-chat search filters.Read 20 Oct 2026 · docs.onyx.app
Rating on Capterra
0.0 out of 5 from 0 reviewsRead 20 Oct 2026 · capterra.com
Rating on G2
0.0 out of 5 from 0 reviewsRead 20 Oct 2026 · g2.com
Search
Onyx searches indexed sources in parallel and presents relevant documents with source permissions enforced.Read 7 Oct 2026 · onyx.app
Security claim
Onyx documents single-tenant, VPC, on-premise and fully air-gapped deployment options, permission enforcement and no training on customer data.Read 20 Oct 2026 · onyx.app
Security configuration
The Kubernetes guidance requires operators to pin image versions, replace default service passwords, configure secrets and consider non-root security contexts and network policies.Read 20 Oct 2026 · docs.onyx.app
Self-hosting
The project states that data, embeddings and model traffic can remain inside a customer cloud, bare-metal or air-gapped deployment.Read 20 Oct 2026 · onyx.app
System requirements Lite
Lite requires at least 2 vCPU, 2 GB RAM and 10 GB disk; preferred sizing is 4 vCPU, 4 GB RAM and 50 GB disk.Read 20 Oct 2026 · docs.onyx.app
System requirements Standard
Standard requires at least 4 vCPU, 10 GB RAM and 32 GB plus about 2.5 times indexed data on disk; preferred sizing is 8 or more vCPU and 16 or more GB RAM.Read 20 Oct 2026 · docs.onyx.app
Team workspace
YesRead 21 Sep 2026 · onyx.app
Web search
YesRead 21 Sep 2026 · onyx.app

Plans and prices

Business $20 a month Annual Billing Chat/search · major LLMs · custom agents · MCP/OpenAPI actions · 40+ connectors · web search · deep research · code interpreter · image generation · Slack · developer APIs · dashboards · RBAC · permission inheritance · encrypted secrets · community support Read 20 Oct 2026 · onyx.app
Community Edition Free Core RAG · deep research · custom agents · actions · self-hosted Read 20 Oct 2026 · github.com
Enterprise Priced on request Business features · OIDC/SAML SSO · on-premise · region-specific deployment · white-labeling · custom integrations · hooks · exports · invoice billing · volume discounts · dedicated support · SLA Read 20 Oct 2026 · onyx.app

Every Onyx plan and price →

Strong points and limits

Strong points

  • 50+ connector options
  • Source permissions enforced at query time
  • On-premise and air-gapped deployments
  • APIs for agents and actions
  • Native Windows, macOS, and Linux apps

Limits

  • Business pricing is annual billing
  • Business includes 40+ connectors, not all listed connectors
  • Microsoft Teams and Zendesk are coming soon

Who it suits

Onyx suits company-wide, engineering, sales, and support teams that need connected knowledge, controlled retrieval, agents, and customer-managed deployment options.

Verdict

Onyx combines permission-aware search, connectors, agents, APIs, and deployment choices for organizational knowledge work.

Where Specifiction places it

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