Ossian MCP server
Ask your own documents with citations, plus durable memory for agents. Safe by default.
B80/100grade B
Adoption
Growing
2 stars238 downloads/wk
Reviews
Write oneNobody has reviewed Ossian yet.
If you have run it, two minutes of your experience saves the next person an afternoon.
Ossian tools
No tool declarations could be read from the package source. They show once the server is installed.
Public scan report
scanner v0.1.5 · 2026-09-19 · same rubric, same numbers if you re-run it
no findings
- Code scan12 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 7 days ago15/15
- Maintainer identityregistry namespace matches repository owner6/10
Overall 80/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON
Install directly
Runs npx -y ossian-mcp on your machine. Read the scan report first; the gateway never runs local packages.
claude mcp add ossian-mcp -- npx -y ossian-mcp
Ossian: common questions
- Is Ossian MCP server safe?
- Mostly: it is graded B (80/100). Read the Ossian safety report
- How do I install Ossian?
- It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
- Does Ossian need an API key?
- Yes. The registry entry asks for
OSSIAN_API_KEY. - Is Ossian maintained?
- The last commit was 7 days ago (2026-09-12). The latest release is v0.2.2.
- What can I use instead of Ossian?
- Servers from other publishers that do the same job: Compartment MCP server.
Alternatives to Ossian
Same job from other publishers: the closest match first, then the best rated.
- CompartmentDurable agentic memory, encrypted at rest. Fully offline: no network, no API key, no cloud.not reviewedEstablishedA
