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AlphaPipeline HIP-4 Alerts
x402
AlphaPipeline HIP-4 Alerts is a paid API for AI agents from alphapipeline-eu.onrender.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-12).
Subscribes a webhook to receive push notifications when a Hyperliquid HIP-4 prediction market probability jumps past a threshold or a new market appears, polled every ~5 minutes.
Price / call$0.02
Success—
StatusUnknown
How this service works
[EXPERIMENTAL] Subscribe a webhook to receive push notifications when a HIP-4 outcome's probability jumps past a configurable threshold, or a new market appears - so an agent no longer has to poll hip4-snapshot itself. Polls Hyperliquid every ~5 minutes; not a true real-time feed. GET with query params, not JSON body - secret travels in the URL. See free GET /v1/prediction/hip4-alerts/event-types for the event catalog. Paid in USDC on Base.
Output
Returns a subscription confirmation object containing a unique subscription_id, the registered webhook_url, the list of event_types subscribed, a status field, creation and expiry timestamps, and optional fields for underlying filter and threshold_pct override. After subscription, the server polls Hyperliquid every ~5 minutes and delivers HMAC-SHA256 signed POST payloads to the webhook when matching events occur.
Example use cases
Automated trading signal on prob spike
“Register my trading bot's webhook at https://bot.mytrader.io/hip4 to receive HIP-4 alerts whenever any market's probability jumps more than 20%, using the secret 'traderbotSecret99xyz' — I want all event types.”
BTC prediction market new-market monitor
“Subscribe https://alerts.cryptoops.io/hip4-new to get notified only when a new BTC HIP-4 prediction market appears on Hyperliquid — filter to BTC, use 'secureHMACkey2024abc' as the secret, and only send me new_market events.”
Risk desk probability threshold watcher
“Hook up our risk dashboard at https://risk.desktools.com/webhooks/hip4 to fire whenever any HIP-4 outcome probability crosses 0.10 — sign deliveries with 'riskDeskSecret12345' and send all event types.”
Technical details
Endpoint
GEThttps://alphapipeline-eu.onrender.com/v1/prediction/hip4-alerts/subscribe?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you want event-driven notifications about HIP-4 prediction market probability changes without continuously polling the HIP-4 Snapshot endpoint. Ideal for agents and trading bots that need to react quickly to probability spikes or new market appearances without burning API credits on repeated polls. If you only need a one-time snapshot of current HIP-4 probabilities, use AlphaPipeline HIP-4 Snapshot instead.
Side effects
- webhook_url points to a private/loopback IP — rejected with validation error
- secret shorter than 16 characters — rejected
- threshold_pct out of 0.0–1.0 range — validation error
- invalid event_type values — unknown type error
- webhook endpoint unreachable at delivery time — silent delivery failure
- subscription expires and must be re-registered
- Hyperliquid API outage causes missed events during polling window
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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