LocalFree server, account needed

Yault AESP MCP server

ya-xyz/aesp

Crypto payments for the agent economy — policy-gated vault operations under human control

Install Yault AESP in Claude Code

Claude Code
claude mcp add yault-aesp -e YAULT_API_KEY=... -- npx -y @yault/aesp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "yault-aesp": {
      "command": "npx",
      "args": [
        "-y",
        "@yault/aesp"
      ],
      "env": {
        "YAULT_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the Yault AESP MCP server do?

Crypto payments for the agent economy — policy-gated vault operations under human control

Is the Yault AESP MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Yault AESP run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Yault AESP to Claude Code?

Run: claude mcp add yault-aesp -e YAULT_API_KEY=... -- npx -y @yault/aesp

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