Onyx MCP server

by ByWaleed·io.github.ByWaleed/onyx-mcp·v0.2.1

Secure MCP access to Onyx search, chat, projects, and administration.

B83/100grade B

What users say

No reviews yet

Safety scan

B83/100

Adoption

Growing

0 stars36 downloads/wk

Reviews

Nobody has reviewed Onyx MCP yet.

If you have run it, two minutes of your experience saves the next person an afternoon.

No tool declarations could be read from the package source. They show once the server is installed.

scanner v0.1.9 · 2026-09-20 · same rubric, same numbers if you re-run it

no findings

Code scan34 source files scanned25/25
–Live reliabilityno gateway calls yet and no remote to proben/a
–Tool poisoningtools not inspected (local package is not executed); not countedn/a
Auth qualitystatic API keys via environment variables6/15
Maintenancelast push 0 days ago15/15
Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Overall 83/100. Components that don't apply are left out of the denominator. Any critical finding is an F.Rubric Appeal a finding JSON

Runs npx -y onyx-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add onyx-mcp -- npx -y onyx-mcp

Is Onyx MCP server safe?: Mostly: it is graded B (83/100). Read the Onyx MCP safety report
How do I install Onyx MCP?: It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does Onyx MCP need an API key?: Yes. The registry entry asks for ONYX_API_TOKEN.
Is Onyx MCP maintained?: The last commit was in the last day (2026-09-20). The latest release is v0.2.1.
What can I use instead of Onyx MCP?: Servers from other publishers that do the same job: HIG Doctor MCP server, HasData YouTube MCP server and Gdelt MCP server. Compare all Onyx MCP alternatives.

Same job from other publishers: the closest match first, then the best rated.

HIG Doctor
Apple Human Interface Guidelines search, lookup, and project audits for AI coding agents.
not reviewed
Established
B
HasData YouTube
Search YouTube and read video, channel and transcript data as JSON. No Google Cloud project.
not reviewed
Growing
A
Gdelt
Search and analyze global news coverage and US TV transcripts via the GDELT Project APIs.
not reviewed
Growing
A
Apple Messages
Search and read Apple Messages — chats and decoded text, sending off by default
not reviewed
Growing
A
Readdit Later
Search, organize, and chat with your saved Reddit posts from Claude, Cursor, and any MCP client.
not reviewed
Growing
B

Local package. It runs on your machine, not through the gateway.

ONYX_API_URLOnyx API base URL, for example https://onyx.example.com/api
ONYX_API_TOKENsecretOnyx Personal Access Token or API key
ONYX_DEFAULT_PERSONA_IDDefault Onyx agent ID for new chats
ONYX_MCP_ENABLE_WEB_FETCHEnable web search and allowlisted URL fetching
ONYX_MCP_WEB_FETCH_ALLOWLISTComma-separated hostnames permitted for HTTPS URL fetching

Claim it to keep the listing current and reply to reviews. Claiming never changes the grade or hides a review.

Shows the safety grade and links back to this page. It updates itself after every scan and review.

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