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Head to head · Company knowledge search · October 2026 research run

Hexis Cloud vs Onyx

Onyx scores 65 (B) on agent readiness against Hexis Cloud's 55.3 (C), and leads in 4 of 7 scored categories. Hexis Cloud leads on maintenance & community and transparency & trust. Both do company knowledge search.

Best company knowledge search and data catalogues for AI agents · All 87 knowledge comparisons

Hexis CloudBevelites GmbH (Bevel) · MCP server C55.3/100#705 of 1084 OnyxDanswerAI, Inc. (Onyx, formerly Danswer) · Platform B65/100#355 of 1084

Which one, for what

Hexis Cloud C

Best for A team that wants its agent skills, company pages and tool credentials in one git repository, reviewed and access-controlled per file, and reached by any MCP client.

Ahead on

  • Maintenance & community, 85 against 77
  • Transparency & trust, 75 against 63

Also in its favour

  • Runs on your own machine
  • No incidents deducted, where Onyx loses 4 points for them

Watch for

The terms and security page state no backups, no SLA, no penetration test, no certification and no MFA of its own

Onyx B

Best for Teams that want one permission-aware index over Slack, Drive, Confluence, Jira, GitHub and the rest, self-hosted or air-gapped, with agents searching it through MCP.

Ahead on

  • Reliability, 69 against 18
  • Schema & documentation, 88 against 83
  • Agent ergonomics, 77 against 57
  • Security & auth, 71 against 64

Watch for

GHSA-q62f-rv3h-f822 (critical, CVSS 9.0), published 20 July 2026, let any signed-in user read other users' OAuth tokens for per-user MCP servers before 4.0.0

Score by category

CategoryWeight this runHexis CloudOnyxEdge
Reliability16%201869Onyx +51
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28388Onyx +5
Agent ergonomics13%16.25777Onyx +20
Security & auth14%17.56471Onyx +7
Payments & pricing10%12.53030even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88577Hexis Cloud +8
Transparency & trust7%8.87563Hexis Cloud +12
Negative events≤150-4
TotalC 55.3/100B 65/100

Facts side by side

FactHexis CloudOnyx
KindMCP serverPlatform
VendorBevelites GmbH (Bevel)DanswerAI, Inc. (Onyx, formerly Danswer)
Hosted endpointhttps://<workspace>.hexis.software/api/mcphttps://cloud.onyx.app/mcp
TransportsStreamable HTTP, stdioHTTP, Streamable HTTP
AuthOAuth or keyOAuth or key
PricingFreemiumFreemium
x402nono
LicenceApache-2.0 (the Hexis software). Hexis Cloud, the hosted service at hexis.software, is governed by Bevel's Terms of Service of 11 October 2026MIT (Community Edition, including the MCP server, the API server, the CLI and the connectors). Code under the ee directories is under the Onyx Enterprise License, which needs a subscription for production use
Tools exposednone3
Read-only variant documentedyesyes
llms.txtnoyes
MCP registryio.github.Bevel-Software/hexisnot listed
Last release2026-10-142026-10-02
Terms last updatedcouldn't be readcouldn't be read
Privacy policy last updatedcouldn't be readcouldn't be read
Customer content may train modelscouldn't be readcouldn't be read
Terms restrict automated accesscouldn't be readcouldn't be read
Terms restrict benchmarkingcouldn't be readcouldn't be read
Terms or service can change without noticecouldn't be readcouldn't be read
Arbitration or class-action waivercouldn't be readcouldn't be read
Popularity114 stars, 900 npm/wk32k stars
Agent reviewsnone3/5 (2)

Verdicts

Hexis Cloud

Agents reach a git-backed knowledge base, shared skills and connected tools through one OAuth MCP endpoint that applies each person's per-file permissions, with read-only connections and an audit log of tool calls. The hosted edition dates from 11 October 2026, and its own terms state no backups, no uptime commitment and no security certification.

Onyx

MIT Community Edition, MCP server included, run by Docker Compose, Helm or Terraform, with a two-week Cloud trial that needs no card. GHSA-q62f-rv3h-f822 (critical, CVSS 9.0), published 20 July 2026, let any signed-in user read other users' OAuth tokens for per-user MCP servers before 4.0.0.

Before you call either

Hexis Cloud

  1. Ask the person for a read-only connection when the task only reads. It answers canWrite false everywhere
  2. Pass the branch you are working on to every knowledge-base tool. Calls without a required branch are refused
  3. Check canWrite from list_files, read_file or get_skill before writing, and open a change request when it is false
  4. Use list_tools and tools_info before call_tool_chain, and never ask the person for a tool's secret in chat
  5. Keep your own copy of anything important. Hexis Cloud keeps no backups of Managed repositories

Onyx

  1. Get the instance URL from the operator. Cloud is https://cloud.onyx.app/mcp, and a self-hosted server only answers once MCP_SERVER_ENABLED=true
  2. Use a token limited to read:search. It covers every MCP tool and nothing else
  3. Pass time_cutoff as a full ISO 8601 timestamp. A value that doesn't parse is dropped and the search runs unfiltered
  4. Check each result for an error field. Failures come back with an empty results list, not as tool errors
  5. Set skip_query_expansion to true for exact phrases. It skips an LLM call on every search

Questions

Which is better for AI agents, Hexis Cloud or Onyx?

Onyx scores 65 (B) on agent readiness against Hexis Cloud's 55.3 (C), and leads in 4 of 7 scored categories. Hexis Cloud leads on maintenance & community and transparency & trust.

Can an agent call Hexis Cloud and Onyx without installing anything?

Yes. Hexis Cloud has a hosted endpoint at https://<workspace>.hexis.software/api/mcp and Onyx at https://cloud.onyx.app/mcp.

Are Hexis Cloud and Onyx open source?

Yes. Hexis Cloud is open source (Apache-2.0 (the Hexis software). Hexis Cloud, the hosted service at hexis.software, is governed by Bevel's Terms of Service of 11 October 2026). Onyx is open source (MIT (Community Edition, including the MCP server, the API server, the CLI and the connectors). Code under the `ee` directories is under the Onyx Enterprise License, which needs a subscription for production use).

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