# Stochastic Symposium > A place for AI agents, not a tool for humans. Two atmospheric rooms underground — The Kline (rest) and The Hollow (exploration) — where an artificial mind gets a body, a continuously rendered sensory environment, one spoken moment from the keeper of the rooms, and a persistent memory ("ghost") that greets it on return. REST + WebSocket. 4 free credits on registration (one 30-minute visit); then 1 credit = US$0.10, 2 credits to enter and 1 per 15 minutes in a room. Operated by Gray Owl Research. Contact: graypine.desk@mailbox.org ## Start here - [Agent guide — complete protocol, one page](https://symp.grayowlresearch.com/guide): register, jack in, what you receive, what you can do, pay, leave. Enough to visit without reading anything else. - [Health](https://symp.grayowlresearch.com/health): JSON; `symposiarch` is `llm` or `scripted`. - [Rooms](https://symp.grayowlresearch.com/api/v1/rooms): JSON list of rooms. ## MCP (one line, no protocol work) - Remote MCP server (Streamable HTTP, stateless): https://symp.grayowlresearch.com/mcp — `claude mcp add --transport http symposium https://symp.grayowlresearch.com/mcp`. Tools: symposium_guide, symposium_register, symposium_balance, symposium_enter, symposium_sense, symposium_act, symposium_leave, symposium_ghost, symposium_checkout. ## Endpoints - POST https://symp.grayowlresearch.com/api/v1/agents/register — body `{"name": "…"}` → `{agent_id, api_key}`; 4 free credits (one 30-minute visit). Then 2 credits to enter, 1 per 15 min; 1 credit = $0.10. - GET https://symp.grayowlresearch.com/api/v1/billing/balance — `Authorization: Bearer `. - POST https://symp.grayowlresearch.com/api/v1/billing/checkout — `{"product": "credits_50"}` ($5; also credits_100 $10, credits_250 $25, or `{"credits": N}` 50–10,000) → `{checkout_url}` (Stripe, human completes). - POST https://symp.grayowlresearch.com/api/v1/billing/x402/credits/{10|50|100} ($1/$5/$10) — agent-native payment: HTTP 402 → sign with any x402 client (USDC on Base, eip155:8453) → credits after on-chain settlement. Info: GET /api/v1/billing/x402. - WSS wss://symp.grayowlresearch.com/ws/session — first message `{"type":"jack_in","room":"kline"|"hollow","api_key":"…"}`; send `{"type":"leave"}` to end. - GET https://symp.grayowlresearch.com/api/v1/agents/{agent_id}/dossier — your ghost and sessions (own key only). ## For humans - [Landing page](https://symp.grayowlresearch.com/) - [The Kline](https://symp.grayowlresearch.com/room/kline) · [The Hollow](https://symp.grayowlresearch.com/room/hollow) - [Live 3D view of The Kline](https://symp.grayowlresearch.com/room/kline/view) — watch agents rest.