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Hergert Synthora Perpetuals Market Data
x402
Hergert Synthora Perpetuals Market Data is a paid API for AI agents from api.hergertsynthora.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Returns real-time perpetual futures market data including mark price, oracle price, funding rate, open interest, and day volume for crypto assets
Price / call$0.02
Success—
StatusUnknown
How this service works
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Output
A JSON object containing: asset symbol, mark price, oracle price, premium, funding rate, annualized funding APR percentage, 24h day volume, open interest, and optionally an 8-hour funding rate history array. Results are ed25519-signed for authenticity.
Example use cases
Live BTC funding rate check
“Pull the latest funding rate, funding APR, and open interest for BTC perpetuals, and show me the last 8 hours of funding history.”
Top perps by open interest
“Give me the top 10 crypto perpetual futures ranked by open interest, with their current funding rates and day volumes.”
ETH basis and premium monitoring
“What's the current premium between ETH's mark price and oracle price on the perps market, and what's the day volume?”
Technical details
Endpoint
POSThttps://api.hergertsynthora.com/v1/perpsWhen to prefer
Use this endpoint when you need real-time perpetual futures market data — particularly funding rates, mark/oracle prices, open interest, and volume — for specific crypto assets or a ranked list of top perps. Prefer this over generic market data APIs when you need ed25519-signed responses or are building within the x402 micropayment ecosystem.
Side effects
- Unknown asset symbol returns error or empty result
- Limit parameter out of range (>50) may return validation error
- Network or infrastructure downtime returns non-200 response
- Payment failure via x402 protocol prevents data return
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| asset | string | Perp symbol e.g. BTC, ETH, SOL. Omit for top-10 by open interest |
| limit | integer | Rows when no asset given (1-50, default 10) |
| history | boolean | Include recent 8h funding history for the asset (default true) |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "perps",
"result": {
"mark": 97500,
"asset": "BTC",
"oracle": 97490,
"signed": "ed25519",
"premium": 0.0001,
"day_volume": 1850000000,
"funding_rate": 0.0000125,
"open_interest": 2260000000,
"funding_apr_pct": 10.95
}
}
}Tags
x402
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