HSM Kit MCP Server

🔐 Professional encryption & key management tools, 100% client-side, secure & reliable. It runs locally over stdio via the published package.

People who work with cloudflare pages, cryptography and hsm and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-23 · ★ 3 · #166 OF 344 MAINTAINED FINANCE · VERIFIED 2026-09-30

MIT · TypeScript servers · how we verify → /methodology

01 · Install HSM Kit

Claude Code

claude mcp add hsm-kit-hsmkit -- npx -y @hsmkit/mcp-server

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "hsm-kit-hsmkit": {
      "command": "npx",
      "args": [
        "-y",
        "@hsmkit/mcp-server"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package @hsmkit/mcp-server - the @hsmkit scope differs from the repo owner (hsm-kit); confirm it's the project's official package

registry namespace io.github.hsm-kit is GitHub-verified and matches the repo owner

03 · What HSM Kit can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

An agent gets 2 documented tools across hmac, cmac, including HMAC, CMAC.

The 2 tools it gives your agent

Extracted from the project's README - what HSM Kit lets an agent do.

HMAC: - /payments-mac-hmac
CMAC: - /payments-mac-cmac

Latest releases

v0.1.0 · 2026-09-23

04 · Who maintains HSM Kit

HSM Kit is maintained by hsm-kit. It's the only MCP server we track from this author; the repo dates to Dec 2025.

05 · Facts

repository: github.com/hsm-kit/hsmkit
website: https://hsmkit.com/
category: finance - ranked #166 of 344 actively-maintained finance servers as of 2026-09-30.
release cadence: 1 release in the last 90 days (latest 2026-09-23)
registry: io.github.hsm-kit/hsmkit (active, first published 2026-09-23)
packages: npm:@hsmkit/mcp-server

06 · HSM Kit FAQ

What is HSM Kit?

🔐 Professional encryption & key management tools, 100% client-side, secure & reliable. It runs locally over stdio via the published package.

Is HSM Kit still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-23 and it shipped 1 release in the last 90 days. We re-verify nightly.

How do I install HSM Kit?

Run `npx -y @hsmkit/mcp-server`. You can also paste the ready-made client config above.

Does HSM Kit run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to HSM Kit

Alternatives to HSM Kit

Maintained finance servers if HSM Kit isn't the fit.

Pairs well with

Servers that cover what HSM Kit doesn't - only shown when the pairing reason fits the companion.

More finance MCP servers · Httpayer MCP Server · Hummingbot MCP Server · Signalfuse · T-Bank MCP · Copilot Money

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