Back to Browse
Hyperextend HIP-4 Outcome Open Interest (Per-Minute)
x402
Hyperextend HIP-4 Outcome Open Interest (Per-Minute) is a paid API for AI agents from api.hyperextend.xyz, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns per-minute two-sided open interest (notional) for a specified HIP-4 outcome market on Hyperliquid, queryable over any time window.
Price / call$0.001
Success—
StatusUnknown
How this service works
Per-minute Hyperliquid market history: open interest, candles, trades, liquidations, HIP-3, spot and outcome markets. Query any window, pay per request over x402.
Output
Returns a JSON array of per-minute records, each containing: the number of market sides, the minute-level Unix timestamp, and the notional open interest value (e.g. {sides: 2, minute_ts: 1700000000, oi_notional: '12345.6'}).
Example use cases
Example prompt
“Pull the per-minute open interest history for Hyperliquid HIP-4 outcome market 100 for the last 500 data points so I can see how notional OI has been trending.”
Technical details
Endpoint
GEThttps://api.hyperextend.xyz/v1/outcome/%7Boutcome%7D/oiWhen to prefer
Use this endpoint when you need granular, per-minute open interest data specifically for HIP-4 outcome (prediction) markets on Hyperliquid. Prefer this over generic perp OI endpoints when dealing with outcome/event markets rather than standard perpetual futures.
Side effects
- Invalid or non-existent outcome market ID returns 404 or empty result
- Missing required path parameter 'outcome' returns 400 bad request
- start/end timestamps out of valid range return empty array
- Rate limiting or payment failure via x402 returns 402 Payment Required
- Requesting a limit that exceeds server maximum may return truncated or error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"sides": 2,
"minute_ts": 1700000000,
"oi_notional": "12345.6"
}
}Tags
x402
Reviews
No reviews yet. Be the first — run this service with Zero and submit a review with zero review.
How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"