OpenClaw

Configure the MCP server

Add OpenPhn to OpenClaw's MCP config (same JSON shape as Claude Desktop / Cursor):

{
  "mcpServers": {
    "openphn": {
      "type": "sse",
      "url": "https://mcp.openphn.com",
      "headers": {
        "Authorization": "Bearer sk_live_..."
      }
    }
  }
}

Restart the agent runtime. Tools (make_call, get_call, list_calls, list_numbers) register automatically.

Prompt pattern

You have phone capabilities via the openphn MCP server. When the user asks you to call someone, use make_call with an appropriate objective, outcome_schema, and consent_type before dialing. Do not invent numbers — prompt the user if one isn't provided.

Consent pre-flight

Before dialing, confirm the basis with the user:

Agent: Before I dial +14155551234 about order #A-14421, can you confirm
       consent_type? Options:
       - prior_express  (you have written opt-in)
       - existing_business_relationship  (active customer)
       - emergency  (imminent safety only)

User:  existing_business_relationship

Agent: [calls make_call with that consent_type]

Access control

Restrict the OpenPhn key to what OpenClaw actually needs — usually calls:create + calls:read. If multiple OpenClaw instances share a team account, scope keys to specific number_ids per team so one agent can't dial on another team's caller-ID. See API keys.