Vault MCP

MCP server for credential isolation - bots use passwords and API keys without seeing them. It runs locally over stdio via the published package.

People who work with credentials, encryption and security and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-05 · ★ 2 · #99 OF 204 MAINTAINED SECURITY · VERIFIED 2026-09-18

TypeScript servers · how we verify → /methodology

01 · Install Vault MCP

before you install - you'll need

Set ZEROCREDS_TOKEN before connecting. ZEROCREDS_URL, ZEROCREDS_DEFAULT_DESTINATION, ZEROCREDS_TG_BOT_TOKEN, ZEROCREDS_TG_CHAT_ID are optional or environment-specific per the README.

Claude Code

claude mcp add chill-ai-space-vault-mcp -- npx -y chillai-vault-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "chill-ai-space-vault-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "chillai-vault-mcp"
      ]
    }
  }
}

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 no standard license detected - usage rights unclear; check the repo before commercial use

npm package chillai-vault-mcp - unscoped; check the name against the project README before installing

registry namespace io.github.Chill-AI-Space is GitHub-verified and matches the repo owner

03 · What Vault MCP 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, including zerocreds_create_session, zerocreds_check_status.

The 2 tools it gives your agent

Extracted from the project's README - what Vault MCP lets an agent do.

zerocreds_create_session: - Creates a one-time form session. Returns { token, url, expires_at }.
zerocreds_check_status: - Polls session status. Returns { status: "pending" | "done" | "expired" }.

04 · Who maintains Vault MCP

Vault MCP is maintained by chill-ai-space. It's the only MCP server we track from this author; the repo dates to Feb 2026.

05 · Facts

repository: github.com/chill-ai-space/vault-mcp
category: security - ranked #99 of 204 actively-maintained security servers as of 2026-09-18.
registry: io.github.Chill-AI-Space/vault (active, first published 2026-03-01)
packages: npm:chillai-vault-mcp

06 · Vault MCP FAQ

What is Vault MCP?

MCP server for credential isolation - bots use passwords and API keys without seeing them. It runs locally over stdio via the published package.

Is Vault MCP still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-05. We re-verify nightly.

How do I install Vault MCP?

Run `npx -y chillai-vault-mcp`. The README documents 5 environment variables (ZEROCREDS_URL, ZEROCREDS_TOKEN, ZEROCREDS_DEFAULT_DESTINATION…) to set first. Set ZEROCREDS_TOKEN before connecting. ZEROCREDS_URL, ZEROCREDS_DEFAULT_DESTINATION, ZEROCREDS_TG_BOT_TOKEN, ZEROCREDS_TG_CHAT_ID are optional or environment-specific per the README. You can also paste the ready-made client config above.

Does Vault MCP 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 Vault MCP

Alternatives to Vault MCP

Maintained security servers if Vault MCP isn't the fit.

Pairs well with

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

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