Onepassword Agent MCP vs Volta MCP Server

In-depth architectural comparison of the Onepassword Agent MCP and Volta MCP Server MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Onepassword Agent MCP when:

• You need dedicated capabilities in the Security domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Onepassword Agent MCP Details

Choose Volta MCP Server when:

• You need dedicated capabilities in the Security domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: create_volta_note, read_volta_note.

Explore Volta MCP Server Details

Feature & Specification Comparison

Specification	Onepassword Agent MCP Security	Volta MCP Server iamredmh Security
Summary	Local MCP access to approved 1Password fields without exposing plaintext secrets to AI agents.	Burn-after-read encrypted notes for AI agents. Create and read self-destructing notes via Volta Notes with AES-256-GCM E2E encryption — the decryption key never leaves the URL fragment. Secure credential handoff between users and agents without secrets appearing in chat history.
Category & Scope	Security

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "onepassword-agent-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "onepassword-agent-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "iamredmh-volta-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@voltanotes/mcp"
      ]
    }
  }
}

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