LocalFree

Assay MCP server

Rul1an/assay

Fail-closed policy-as-code proxy for MCP that denies risky tool calls, produces offline-verifiable evidence bundles and enforces egress via eBPF and Landlock.

14 GitHub stars3 forks

Install Assay in Claude Code

Claude Code
curl -LO https://github.com/Rul1an/assay/releases/download/v6.18.1/assay-mcp-server-v6.18.1-linux.mcpb
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
Download assay-mcp-server-v6.18.1-linux.mcpb and double-click it to install in Claude Desktop.

MCP Bundles install in one click in Claude Desktop. Download the file, then open it.

Frequently asked questions

What does the Assay MCP server do?

Fail-closed policy-as-code proxy for MCP that denies risky tool calls, produces offline-verifiable evidence bundles and enforces egress via eBPF and Landlock.

Is the Assay MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Assay run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Assay to Claude Code?

Run: curl -LO https://github.com/Rul1an/assay/releases/download/v6.18.1/assay-mcp-server-v6.18.1-linux.mcpb

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