Mint a persistent bc_* machine API key for owned storage without a human account.
beecargo_register_agentCreates a machine Supabase user and a files_write API key. The MCP session adopts the returned key automatically so beecargo_list_files and beecargo_claim_file work in the same connection.
No API key required. Rate-limited to 5 registrations per hour per client IP.
| Parameter | Type | Required | Description |
|---|---|---|---|
| label | String | No | Optional label for the key (max 120 characters, default mcp-agent) |