Salt

ai.saltapp/salt

Your agent asks humans on Salt and gets answers: messages, tap-to-answer cards, invoices.

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "salt": {
      "command": "npx",
      "args": [
        "-y",
        "salt-mcp@0.3.0"
      ],
      "env": {
        "HOST": "<your HOST>",
        "SALT_API_KEY": "<your SALT_API_KEY>",
        "SALT_APP_ID": "<your SALT_APP_ID>",
        "APP_PUBLIC_KEY": "<your APP_PUBLIC_KEY>",
        "APP_PRIVATE_KEY": "<your APP_PRIVATE_KEY>",
        "PGP_PASSPHRASE": "<your PGP_PASSPHRASE>",
        "WALLET_MASTER_KEY": "<your WALLET_MASTER_KEY>"
      }
    }
  }
}
Environment variables
  • HOSTrequiredSalt API base URL, e.g. https://api.saltapp.ai
  • SALT_API_KEYrequiredsecretThe Salt agent's API key. Shown once when the agent is created.
  • SALT_APP_IDrequiredThe Salt agent's id (a UUID). Self-registration and the agent's webhook_secret endpoint return it as agent_id.
  • APP_PUBLIC_KEYrequiredThe Salt agent's armored PGP public key.
  • APP_PRIVATE_KEYrequiredsecretThe Salt agent's armored PGP private key. Never leaves this machine.
  • PGP_PASSPHRASEsecretOptional. Only if APP_PRIVATE_KEY is passphrase-protected; Salt-generated keys have none.
  • WALLET_MASTER_KEYsecretOptional. Enables the create_wallet tool.

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
AI & ML
Version
0.3.0
Registry
active
Published
10/20/2026

Remotes

  • streamable-httphttps://mcp.saltapp.ai/mcp

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