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4SEC Crypto Funding Rate API
x402
4SEC Crypto Funding Rate API is a paid API for AI agents from api.foursec.xyz, paid per call via x402, $0.02/call, status down (last checked 2026-09-15).
Returns real-time perpetual futures funding rate data for a given crypto symbol, aggregated across multiple DEXes
Price / call$0.02
Success—
StatusDown
How this service works
Real-time multi-DEX aggregated crypto market data. Pay per request with USDC on Base via x402 protocol.
Output
Returns a JSON object containing the crypto symbol, a directional signal string (e.g. bullish/bearish), the current funding rate as a decimal, the annualized funding rate, and the timestamp of the next funding event.
Example use cases
Crypto arbitrage funding rate check
“What's the current funding rate for ETH perpetuals and is the signal positive or negative? I want to decide whether to go long or short.”
Automated trading signal monitor
“Pull the latest funding rate data for SOL including the annualized rate and next funding time — I'm building a bot that trades based on funding rate extremes.”
DeFi portfolio risk assessment
“Check the current funding rate for BTC across DEXes and tell me when the next funding event is — I need to know if I should adjust my leveraged position.”
Technical details
Endpoint
GEThttps://api.foursec.xyz/funding-rate/%7Bsymbol%7DWhen to prefer
Choose this endpoint when you need real-time perpetual futures funding rate data aggregated across multiple DEXes in a single call, particularly when operating in a pay-per-use agent workflow using the x402 protocol on Base. Prefer this over centralized exchange APIs when you specifically want multi-DEX DeFi coverage and cost-efficient micropayment billing.
Side effects
- Unknown or unsupported symbol returns an error or empty result
- Funding rate data temporarily unavailable for low-liquidity tokens
- Payment failure via x402 protocol results in 402 response and no data
- Malformed symbol input may return 400 bad request
- Rate or aggregation lag during high-volatility periods
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "object",
"example": {
"signal": {
"type": "string"
},
"symbol": {
"type": "string"
},
"funding_rate": {
"type": "number"
},
"annualized_rate": {
"type": "number"
},
"next_funding_time": {
"type": "string",
"format": "date-time"
}
}
}Tags
x402
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