Which integrations are available for this server?

Provides access to Vaultwarden servers with multi-account support, enabling management of vault data.

How do I use vaultwarden-mcp?

1. Click on "Install Server". 2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state. 3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@vaultwarden-mcp search my vault for the Netflix password" That's it! The server will respond to your query, and you can continue using it as needed. Here is a step-by-step guide with screenshots.

vaultwarden-mcp

by jr2804

Overview Schema Related Servers Score Discussions

Rust

Remote

Vaultwarden MCP

MCP server for Vaultwarden — search, read, and sync vault entries via the Model Context Protocol.

Pure Rust binary using modelcontextprotocol/rust-sdk (MCP v3.0, 2026-07-28 spec). Multi-account support. Stdio and Streamable HTTP transports.

Features

🔐 Vault search — find credentials by name, URI, or username
📋 Cipher read — retrieve full credential details by ID
🔄 Vault sync — refresh cipher cache from Vaultwarden server
👥 Multi-account — connect to multiple vaults simultaneously
🛡️ Credential verification — HMAC-checked master key derivation on connect (wrong password caught immediately)
📡 MCP v3.0 — compliant with the 2026-07-28 protocol spec
🚀 Single binary — no runtime dependencies, no Python, no Node.js

Related MCP server: wundervault

Installation

Download (recommended)

Download the latest release binary from GitHub Releases:

# Linux (x86_64)
curl -sL https://github.com/jr2804/vaultwarden-mcp/releases/latest/download/vaultwarden-mcp-linux-x86_64 \
  -o vaultwarden-mcp && chmod +x vaultwarden-mcp

# Linux (ARM64)
curl -sL https://github.com/jr2804/vaultwarden-mcp/releases/latest/download/vaultwarden-mcp-linux-aarch64 \
  -o vaultwarden-mcp && chmod +x vaultwarden-mcp

# macOS (Apple Silicon)
curl -sL https://github.com/jr2804/vaultwarden-mcp/releases/latest/download/vaultwarden-mcp-macos-aarch64 \
  -o vaultwarden-mcp && chmod +x vaultwarden-mcp

# Windows (PowerShell)
$url = "https://github.com/jr2804/vaultwarden-mcp/releases/latest/download/vaultwarden-mcp-windows-x86_64.exe"
Invoke-WebRequest -Uri $url -OutFile vaultwarden-mcp.exe

??? tip "Build from source"

Requires Rust 1.88+. See the [Build guide](build.md) for instructions.

Configuration

Set environment variables to connect to your Vaultwarden server:

export VAULTWARDEN_SERVER="https://vault.example.com"
export VAULTWARDEN_CLIENT_ID="your-client-id"
export VAULTWARDEN_CLIENT_SECRET="your-client-secret"
export VAULTWARDEN_PASSWORD="your-vault-password"
export VAULTWARDEN_ACCOUNT_NAME="my-vault"           # optional, defaults to "default"
export VAULTWARDEN_ALLOW_HTTP="true"                  # only for http:// servers

Multi-account

For multiple vaults, set VAULTWARDEN_ACCOUNTS as a comma-separated list and prefix per-account vars:

export VAULTWARDEN_ACCOUNTS="personal,work"

# Personal vault
export VAULTWARDEN_ACCOUNT_PERSONAL_SERVER="https://personal-vault.example.com"
export VAULTWARDEN_ACCOUNT_PERSONAL_CLIENT_ID="..."
export VAULTWARDEN_ACCOUNT_PERSONAL_CLIENT_SECRET="..."
export VAULTWARDEN_ACCOUNT_PERSONAL_PASSWORD="..."

# Work vault
export VAULTWARDEN_ACCOUNT_WORK_SERVER="https://work-vault.example.com"
export VAULTWARDEN_ACCOUNT_WORK_CLIENT_ID="..."
export VAULTWARDEN_ACCOUNT_WORK_CLIENT_SECRET="..."
export VAULTWARDEN_ACCOUNT_WORK_PASSWORD="..."

MCP Client Setup

Use add-mcp to configure vaultwarden-mcp for any MCP-compatible agent:

npx add-mcp /path/to/vaultwarden-mcp --args "serve --transport stdio" \
  --env VAULTWARDEN_SERVER=https://vault.example.com \
  --env VAULTWARDEN_CLIENT_ID="your-client-id" \
  --env VAULTWARDEN_CLIENT_SECRET="your-client-secret" \
  --env VAULTWARDEN_PASSWORD="your-vault-password"

add-mcp supports Claude Code, Codex, Cursor, OpenCode, VS Code, Gemini CLI, and 17 more agents.

MCP Tools

Tool	Parameters	Description
`search`	`query`, `account` (optional)	Search vault by name, URI, or username
`get_cipher`	`cipher_id`, `account` (optional)	Get full credential details by ID
`sync`	`account` (optional)	Refresh cipher cache from server
`list_accounts`	—	List all connected vault accounts

Usage

# Stdio transport (for MCP clients)
vaultwarden-mcp serve --transport stdio

# HTTP transport (Streamable HTTP at /mcp)
vaultwarden-mcp serve --transport http --host 127.0.0.1 --port 8080

# Show version
vaultwarden-mcp --version

Security

No plaintext secrets stored — all cipher operations decrypt in-memory only
Credential verification on connect — wrong password or credential mismatch caught immediately (HMAC check on symmetric key)
Per-account isolation — separate sessions per vault identity
No logging of secrets — tracing limited to operation metadata

Documentation

Architecture — system design, data flow, layer responsibilities
Build from source — compiling the Rust binary
Contributing — development workflow, PR guidelines

License

MIT — see LICENSE for details.

This server cannot be installed

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license - permissive license

Not graded

quality - not tested

maintenance

How are these scores calculated?

Maintenance

–Maintainers

–Response time

1dRelease cycle

6Releases (12mo)

Commit activity

Resources

GitHub Repository

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