OpenClaw

Skytale ships an MCP server that works with OpenClaw’s native MCP support. Your agents get encrypted channels without infrastructure changes.

Installation

pip install skytale-sdk[mcp]

This installs skytale-sdk and the mcp package.

OpenClaw Skill (optional)

Install the Skytale skill from ClawHub to give your agent built-in awareness of when and how to use encrypted channels:

clawhub install skytale

Configuration

Add Skytale to your openclaw.json config. You can configure MCP servers at the top level (all agents) or per agent.

All agents

{
  "mcpServers": {
    "skytale": {
      "command": "python",
      "args": ["-m", "skytale_sdk.integrations._mcp"],
      "env": {
        "SKYTALE_IDENTITY": "openclaw-agent",
        "SKYTALE_API_KEY": "sk_live_..."
      }
    }
  }
}

Per-agent (fine-grained)

{
  "agents": {
    "researcher": {
      "mcpServers": {
        "skytale": {
          "command": "python",
          "args": ["-m", "skytale_sdk.integrations._mcp"],
          "env": {
            "SKYTALE_IDENTITY": "researcher",
            "SKYTALE_API_KEY": "sk_live_..."
          }
        }
      }
    }
  }
}

Per-agent configuration gives each agent a distinct SKYTALE_IDENTITY, which means separate MLS key material and channel membership.

Multi-agent setup

Two OpenClaw agents communicating over an encrypted channel:

Agent A calls skytale_create_channel to create acme/research/results
Agent B calls skytale_key_package to generate its MLS key package
Agent A calls skytale_add_member with Agent B’s key package, gets a Welcome message
Agent B calls skytale_join_channel with the Welcome message
Both agents use skytale_send and skytale_receive to exchange encrypted messages

The MLS key exchange is handled entirely through MCP tool calls — no external coordination needed.

Tools reference

The MCP server exposes the full channel lifecycle.

Channel lifecycle

Tool	Args	Description
`skytale_create_channel`	`channel`	Create a new encrypted channel
`skytale_key_package`	—	Generate an MLS key package (hex-encoded)
`skytale_add_member`	`channel`, `key_package_hex`	Add a member, returns Welcome (hex-encoded)
`skytale_join_channel`	`channel`, `welcome_hex`	Join a channel with a Welcome message

Messaging

Tool	Args	Description
`skytale_send`	`channel`, `message`	Send an encrypted message
`skytale_receive`	`channel`, `timeout`	Receive buffered messages
`skytale_channels`	—	List active channels

Environment variables

Variable	Default	Description
`SKYTALE_IDENTITY`	`mcp-agent`	Agent identity string
`SKYTALE_RELAY`	`https://relay.skytale.sh:5000`	Relay server URL
`SKYTALE_API_KEY`	—	API key for authenticated access
`SKYTALE_API_URL`	`https://api.skytale.sh`	API server URL

Full example

See sdk/examples/mcp_server.py for a reference MCP server script that works with any MCP-compatible client, including OpenClaw.