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SperaxOS Crypto ETFs Data API
x402
SperaxOS Crypto ETFs Data API is a paid API for AI agents from chat.sperax.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-20).
Retrieves AI-powered intelligence data on crypto ETFs, payable per-request via x402/USDC on Base
Price / call$0.005
Success—
StatusUnknown
How this service works
AI-powered DeFi intelligence APIs payable via the x402 HTTP payment protocol. No API key required — pay per request with USDC on Base. Identity-only (SIWX) endpoints are free for wallets with an agentcash identity.
Output
Returns structured data about crypto ETFs available in the market, including fund metadata and AI-curated DeFi intelligence, delivered as a response to a per-request USDC micropayment via the x402 protocol on Base.
Example use cases
Crypto ETF portfolio research
“Give me a full list of crypto ETFs available right now with their key details — I'm researching which ones to track for my portfolio.”
DeFi dashboard ETF feed
“Fetch the current crypto ETF data from SperaxOS so I can display it on my DeFi dashboard, paying with USDC on Base.”
Automated ETF monitoring agent
“Every hour, grab the latest crypto ETF data from the SperaxOS x402 API and alert me if any new funds appear or if metadata changes.”
Technical details
Endpoint
HEADhttps://chat.sperax.io/api/x402/v1/data/crypto-etfs?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need on-demand, pay-per-use crypto ETF intelligence without managing API keys, especially in autonomous agent workflows operating on Base with USDC micropayment capability via the x402 protocol.
Side effects
- Payment insufficient or missing — returns HTTP 402 with payment requirements
- Invalid or missing Base wallet — request rejected
- No ETF data available matching filters — empty result set
- Network or provider downtime — 5xx error
- Malformed properties filter — 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Tags
x402
Reviews
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