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x402stock On-Chain Perpetuals Data
x402
x402stock On-Chain Perpetuals Data is a paid API for AI agents from agents.x402stock.xyz, paid per call via x402 or MPP, $0.02/call, status healthy (last checked 2026-10-22, last successful call 2026-10-15).
Returns live on-chain perpetuals (perps) market data for crypto assets, priced at $0.02 USDC per call via x402 pay-per-request
Price / call$0.02
Success100%
StatusHealthy
How this service works
Live state of every perpetual-futures market in one call: per coin the mark and oracle price, hourly funding rate with annualized APR, premium, open interest, max leverage, previous-day price, and 24h USD and base volume. Native crypto-derivatives data — funding and open interest are perp-only, absent from any spot feed. Free on-chain DEX data (venue: Hyperliquid), no key. From x402stock
Output
Returns on-chain perpetuals market data including fields such as mark price, index price, funding rate, open interest, and contract metadata for crypto perpetual instruments, delivered as structured JSON.
Example use cases
Monitor BTC perp funding rates
“What are the current on-chain perpetuals funding rates for Bitcoin? I want to know if they're positive or negative before I take a position.”
Compare on-chain vs spot crypto prices
“Fetch the latest mark price and index price from on-chain perps so I can compare them to spot prices and see if there's a meaningful divergence.”
Track open interest for crypto derivatives
“Get me the current open interest data across on-chain perpetual contracts — I'm trying to gauge market sentiment and leverage levels in crypto right now.”
Technical details
Endpoint
GEThttps://agents.x402stock.xyz/api/v1/perps?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time on-chain perpetuals data (funding rates, open interest, mark/index prices) for crypto assets without setting up API keys or accounts. Ideal for AI agents that need pay-per-use access to DeFi derivatives data via USDC micropayments. Prefer this over centralized exchange APIs when on-chain transparency and no-account access are priorities.
Side effects
- Payment not received or insufficient USDC balance — returns 402 Payment Required
- Invalid or unsupported properties filter — may return empty results or 400 Bad Request
- Upstream on-chain data temporarily unavailable — may return 503 or stale data
- Rate limit exceeded — returns 429 Too Many Requests
- Network timeout fetching on-chain data — returns 504 Gateway Timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| as_ofrequired | string | |
| countrequired | number | |
| perpsrequired | array | |
| venuerequired | string | |
| marketrequired | string | |
| sourcerequired | string |
Tags
x402
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