# Sui Bid-Ask Spread Check

> Sui Bid-Ask Spread Check is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Calculates the latest absolute and percentage bid-ask spread for SUI-USD (or another Coinbase USD market) using Coinbase Exchange public market data.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/demand-market-sui-spread-check?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sui-bid-ask-spread-check-3f89eac3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kOl-5I8tCjUaVd72W1e9w

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 sui-bid-ask-spread-check-3f89eac3 -d '<json body>'
```

Example prompt: What's the current bid-ask spread for SUI-USD on Coinbase right now — give me both the absolute dollar spread and the percentage spread?

## When to prefer this

Use this endpoint when you specifically need real-time bid-ask spread data for SUI-USD (or another Coinbase USD pair) and want both absolute and percentage spread in a single call. Prefer this over generic price endpoints when the spread width — not just the price — is what matters, such as for cost estimation, liquidity assessment, or execution quality checks.

## Known failure modes

- Invalid product ID returns an error (e.g. non-existent pair like 'XYZ-USD')
- Coinbase Exchange API downtime may cause unavailable market data
- Stale or delayed data if the market has low activity
- Payment failure if insufficient USDC balance for the $0.01 call fee

## How this service works

Sui Bid-ask spread check: Calculate the latest absolute and percentage bid-ask spread. Coinbase Exchange public USD market data; not investment advice.

## Output

Returns the latest bid price, ask price, absolute spread (ask minus bid), and percentage spread ((ask - bid) / ask × 100) for the specified Coinbase USD trading pair, defaulting to SUI-USD.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "product": {
   "type": "string",
   "default": "SUI-USD",
   "description": "Coinbase USD product ID; defaults to SUI-USD."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sui-bid-ask-spread-check-3f89eac3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)