Mermaid MCP Server
by peng-shawnA Model Context Protocol (MCP) server that converts Mermaid diagrams to PNG images
Mermaid MCP Server is an open-source mcp server by peng-shawn, written mainly in TypeScript, with 235 GitHub stars and the MIT license. Its code was last updated Oct 25, 2026.
Scan summary: scanned Nov 5, 2026 at commit 06cf82c. Seen able to connect to the internet. Scan policy
ScannedScanned. The automated checks below ran on the commit shown. Read each line for what was and was not covered.
Full scan at
06cf82c · Nov 5, 2026 ScannedStatic, secrets and dependency checks completed with no critical findings. BuildsIt installed from a fresh machine. BootsIt started, and MCP servers answered the protocol handshake. ReproducibleEarned in this scan.
Warning. This check found something worth reading in the findings below. It is not proof of a problem.Static code scanwarnWarning. This check found something worth reading in the findings below. It is not proof of a problem.
Passed. This check ran and found nothing it flags.Secrets scanpassPassed. This check ran and found nothing it flags.
Warning. This check found something worth reading in the findings below. It is not proof of a problem.Dependency audit1 known vulnerabilitieswarnWarning. This check found something worth reading in the findings below. It is not proof of a problem.
Warning. This check found something worth reading in the findings below. It is not proof of a problem.ManifestnonewarnWarning. This check found something worth reading in the findings below. It is not proof of a problem.
Passed. This check ran and found nothing it flags.BuildpassPassed. This check ran and found nothing it flags.
Passed. This check ran and found nothing it flags.Boot & handshake1 toolspassPassed. This check ran and found nothing it flags.
Warning. This check found something worth reading in the findings below. It is not proof of a problem.Network egresswarnWarning. This check found something worth reading in the findings below. It is not proof of a problem.
Passed. This check ran and found nothing it flags.Reproducible (×3)passPassed. This check ran and found nothing it flags.
Findings (3)
- mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.body-parser@2.3.0: 1 known vulnerabilityGHSA-27r3-jxmh-p828
package-lock.json - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.Install contacted hosts other than package registriesstorage.googleapis.com
- lowLow. Minor, or common in normal tools. Shown for information.No manifest declaring network access and environment variables (agent.json)
Network activity
During install
registry.npmjs.orgstorage.googleapis.com
While running
No connections
Tools exposed (1)
generateGenerate PNG image or SVG from mermaid markdown
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