MCP
MCP server (no streams)
GET
/mcpAnswers 405 with allow: POST: this server speaks Streamable HTTP without server-initiated streams.
#Authentication
Agent key
An agent-scoped key (ask_...) bound to exactly one agent, or an OAuth access token (aat_...) issued to an MCP client for that agent, sent as Authorization: Bearer. An agent key may ask, poll and settle. It can never approve, widen a mandate or lift a freeze.