# ArbiPulse ETF NAV Premium/Discount Arbitrage

> ArbiPulse ETF NAV Premium/Discount Arbitrage is a paid API for AI agents from arbipulse.theaslangroupllc.com, paid per call via x402, $0.1/call, status down (last checked 2026-09-03).

Returns ETF NAV premium/discount arbitrage data for US, European, Asian, and crypto ETFs versus their underlying spot prices.

## Facts

- Endpoint: POST https://arbipulse.theaslangroupllc.com/api/etf
- Price: $0.1/call
- Payment: x402
- Status: down
- Last checked: 2026-09-03
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/arbipulse-etf-nav-premium-discount-arbitrage-303c352c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qqDHiBVzy1H6iUNIai8J9

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability arbipulse-etf-nav-premium-discount-arbitrage-303c352c -d '<json body>'
```

Example prompt: Pull the current NAV premium/discount arbitrage data for US equity ETFs — I want to see which ETFs are trading significantly above or below their underlying spot value right now, including the spread and any creation/redemption mechanics I should know about.

## When to prefer this

Use this endpoint when you need structured ETF NAV premium/discount arbitrage data across multiple regions (US, Europe, Asia, crypto) and want to understand creation/redemption mechanics alongside the spread. Prefer this over generic price feeds when the specific ETF-to-spot arbitrage context is needed for trading agents.

## Known failure modes

- Invalid ETF ticker returns 404 or empty result
- Unsupported region or asset class returns an error
- Market closed or stale data may return outdated NAV
- Rate limit exceeded returns 429
- Payment not processed returns 402 payment required

## Output

Returns NAV premium/discount spreads for ETFs across US, European, Asian, and crypto markets relative to spot prices, along with arbitrage mechanics such as creation/redemption details and net spread figures useful for trading decisions.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/arbipulse-etf-nav-premium-discount-arbitrage-303c352c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from arbipulse.theaslangroupllc.com](https://www.zero.xyz/host/arbipulse.theaslangroupllc.com/llms.txt)