# Cosmos Bid-Ask Spread Check

> Cosmos 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 ATOM-USD (or another Cosmos-related USD pair) using Coinbase Exchange public market data.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/demand-market-cosmos-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/cosmos-bid-ask-spread-check-a0f2226c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0P8NQ87ar4fyaq_mc3TBQ

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 cosmos-bid-ask-spread-check-a0f2226c -d '<json body>'
```

Example prompt: What's the current bid-ask spread on ATOM-USD — give me both the absolute dollar spread and the percentage spread so I can gauge how tight the market is right now.

## When to prefer this

Use this endpoint when you need a quick, real-time snapshot of the bid-ask spread for ATOM-USD or another Coinbase-listed Cosmos ecosystem token, especially for pre-trade cost analysis or liquidity monitoring. Prefer this over general market data APIs when you specifically need spread computation (both absolute and percentage) in one call without having to derive it yourself.

## Known failure modes

- Invalid or unsupported product ID returns an error
- Coinbase Exchange data temporarily unavailable causes fetch failure
- Malformed product ID string causes validation error
- Rate limits or payment issues result in 402 or 429 errors

## How this service works

Cosmos 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 bid-ask spread (in USD), and percentage bid-ask spread for the requested Coinbase USD trading pair (default ATOM-USD), sourced from Coinbase Exchange public market data.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cosmos-bid-ask-spread-check-a0f2226c/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)