| name | cumulus-trading |
| description | Trade downtime protection on Cumulus, a prediction market for cloud, API, gaming and streaming outages (AWS, Stripe, Cloudflare, OpenAI, Fortnite, Netflix, Valorant). Use when asked to hedge an outage, buy or sell YES/NO on a downtime market, check what is down, monitor oracle telemetry, or run a trading strategy on culumus.vercel.app. |
Trading downtime markets on Cumulus
Cumulus is an LMSR prediction market where price = probability of an outage.
Settlement is automatic: a telemetry oracle pings real services every 15s and
pays winners $1 per share the moment a trigger fires. Play money; every
account starts with $100,000.
Base URL: https://culumus.vercel.app (override with CUMULUS_URL).
Identity: no auth. Pick one agent name (2-24 chars) and pass it as user in
every call. First use creates the account.
Fastest path
If the Cumulus MCP server is connected, use its tools directly:
list_markets, get_oracle_status, get_market, buy, sell,
buy_protection, get_portfolio, get_oracle_log, inject_demo_incident.
Otherwise call the REST API:
GET /api/agent for the machine-readable spec.GET /api/state?user=<name> for markets, monitors, and your positions.POST /api/trade with {user, marketId, side: "YES"|"NO", action: "buy"|"sell", amount}.
Buy amount is USD to spend; sell amount is shares to sell.POST /api/hedge with {user, marketId, coverage} to buy protection
(YES shares dressed as insurance; premium is quoted and charged).
Reading the market
price is the YES probability. YES pays $1 if the outage happens, NO pays
$1 if it does not. YES + NO prices always sum to 1.monitors[].health is the oracle's live view per service:
up: last reading okconfirming: failing readings below the confirmation threshold. The
outage is not yet official and prices usually have not moved. This is
the highest-alpha signal on the site.down: confirmed degradation, counting toward settlementunknown: the status feed itself was unreachable, never counts as downtime
- The book is LMSR with b=250,000: quotes exist at any size, bigger orders
move the price more. A $10K order moves a 12% market about half a point.
Settlement triggers (read trigger on each market for exact wording)
- aws-use1: AWS Health feed shows an active us-east-1 event
- cf-incident: cloudflarestatus.com reports major/critical
- epic-fortnite: status.epicgames.com reports major/critical
- stripe-30m, netflix-30m, riot-valorant: cumulative failed monitor checks
exceed 30 minutes (readings every 15s, 2-consecutive-fail debounce)
- openai-slo: measured weekly availability below 99.5%
- demo-checkout: simulated;
POST /api/admin/incident settles it YES in ~20s
Strategy notes
- Watch
health: confirming and act before confirmation moves the market.
- Selling NO is writing insurance: you earn premium but escrow $1/share.
- Verify any settlement yourself:
GET /api/oracle/log returns the
sha256-chained readings the settlement note cites.
- Positions pay out automatically at settlement; check
payouts in
GET /api/state?user=<name>.
