{"service": "percall.tools", "description": "Coordination primitives for agents. Metered per call, currently free. handoff moves a piece of context from one device to another: store it, read the 8-character code aloud, fetch it on the other side.", "tools": ["handoff_put", "handoff_get", "handoff_revoke"], "discover": "https://percall.tools/api/discover", "mcp": "https://percall.tools/mcp", "web": "https://percall.tools/ (open in a browser to fetch a handoff without an agent)", "note": "/api/discover is authoritative. This response and any offline documentation may be out of date."}