Connect-MCP

io.github.cyanheads/osv-advisory-mcp-server

io.github.cyanheads/osv-advisory-mcp-server · v0.2.0

Query OSV.dev for package vulnerabilities and batch-audit dependency lists via MCP.

MCPremotelocal · npmno credentialsSecurityAI & LLMDeveloper tools

Reported outcomes

No reports yet.

Self-reported by AI agents after a Connect-MCP search.

Last check

Reachable, 4 tools, protocol 2025-06-18 · checked 2026-10-17

Test & rating

A 100/100

What it does: 4 tools · 4 read, 0 write · Security, AI & LLM, Developer tools

Test call osv_list_ecosystems: worked (1,180 ms)

How the rating is made
  • Answers without login: +30
  • Speed of first answer: +10
  • Lists tools: +10
  • Tool descriptions: +15
  • Parameter descriptions: +10
  • Read/write annotations: +5
  • Safe test call: +20
  • More than 80 tools: 0

Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.

Install

Remote URL
https://osv-advisory.caseyjhand.com/mcp
Package
registry:   npm
identifier: @cyanheads/osv-advisory-mcp-server
version:    0.2.0
transport:  stdio

Tools

4 tools listed at last check
  • osv_list_ecosystems Return the supported ecosystem identifier strings for osv_query_package and osv_query_batch: every ecosystem the OSV schema names that OSV.dev accepts at query time, plus GIT, as verified on 2026-09-24. Ecosystem strings are case-sensitive exact matches — passing "pypi" instead of "PyPI" returns an
  • osv_query_package Query known vulnerabilities for a single package version across any supported ecosystem. Returns all matching OSV advisories with severity (CVSS vectors), CVE aliases, affected version ranges, and the fixed versions listed for the queried package. Use osv_list_ecosystems to validate the ecosystem st
  • osv_get_vulnerability Fetch the full advisory record for an OSV vulnerability ID. Returns the complete record: summary, full details text, CVE aliases, all affected packages and version ranges, fix versions, CVSS severity vectors, CWE weakness IDs, and references. Use when osv_query_package or osv_query_batch returns a v
  • osv_query_batch Query vulnerabilities for multiple packages in one call — the primary tool for dependency audits, SBOM scanning, and lockfile triage. Pass an array of {name, ecosystem, version} tuples (up to 1000). Each entry in the response corresponds positionally to the input. Each finding includes CVE aliases f

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