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 (Bitwarden-compatible password manager) — 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)
Invoke-WebRequest -Uri "https://github.com/jr2804/vaultwarden-mcp/releases/latest/download/vaultwarden-mcp-windows-x86_64.exe" \
  -OutFile vaultwarden-mcp.exe

Build from source

Requires Rust 1.88+.

git clone https://github.com/jr2804/vaultwarden-mcp.git
cd vaultwarden-mcp/native
cargo build --release

The binary is at target/release/vaultwarden-mcp.

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="..."

Claude Desktop / AI IDEs

Add to your MCP client configuration:

{
  "mcpServers": {
    "vaultwarden": {
      "command": "/path/to/vaultwarden-mcp",
      "args": ["serve", "--transport", "stdio"],
      "env": {
        "VAULTWARDEN_SERVER": "https://vault.example.com",
        "VAULTWARDEN_CLIENT_ID": "...",
        "VAULTWARDEN_CLIENT_SECRET": "...",
        "VAULTWARDEN_PASSWORD": "..."
      }
    }
  }
}

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 like Claude Desktop)
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

Architecture

┌──────────────────────────────────────────────┐
│  Rust binary (single exe, no runtime deps)   │
│                                               │
│  vaultwarden-cli     rmcp (MCP SDK v3)       │
│   (REST API /        ServerHandler            │
│    PBKDF2 keys)      search, get_cipher,      │
│                   ──▶ sync, list_accounts     │
└──────────┬──────────────────┬─────────────────┘
           │ stdio            │ streamable_http
     MCP clients        HTTP clients

See development-documentation/architecture.md for details.

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

Versioning

CalVer (YYYY.MM.N). Git tags in the format 2026.8.0 trigger automated releases via GitHub Actions.

License

MIT — see LICENSE for details.

Contributing

Fork the repository
Create a feature branch
Make your changes
Run cargo check && cargo test in native/
Submit a pull request

This server cannot be installed

license - permissive license

quality - not tested

maintenance

How are these scores calculated?

Maintenance

–Maintainers

–Response time

–Release cycle

1Releases (12mo)

Commit activity

Resources

GitHub Repository

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