# DEBYKO Crypto Perpetuals Screener

> DEBYKO Crypto Perpetuals Screener is a paid API for AI agents from api.debyko.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).

Screen crypto perpetual futures markets across multiple venues by funding rate, open interest, price, and data age using DQL (DEBYKO Query Language).

## Facts

- Endpoint: POST https://api.debyko.com/v2/screen?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/debyko-crypto-perpetuals-screener-07f051ce
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WKpqTK0nDCiv6NAz0Lq-f

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 debyko-crypto-perpetuals-screener-07f051ce -d '<json body>'
```

Example prompt: Search DEBYKO for the top 20 crypto perpetual markets right now, filtered by positive funding rate above 0.01% and open interest over $10M, excluding stale data, with results in JSON number format.

## When to prefer this

Choose this endpoint when you need to programmatically screen and filter crypto perpetual futures across multiple venues simultaneously using structured query logic (DQL). It is ideal for agents building market scanners, funding rate arbitrage detectors, or open interest monitors. Prefer this over ticker endpoints when you need multi-venue filtered results rather than a single market snapshot.

## Known failure modes

- Invalid DQL query syntax returns a 400 error
- Requesting stale data with allow_stale=false may return fewer results than limit
- Unsupported unit type in 'units' field causes validation error
- Empty result set if no markets match the query criteria
- Cursor value from a previous session may expire or be invalid
- Payment failure (x402) if USDC balance is insufficient

## How this service works

Crypto perpetual futures screener that finds markets across 19 venues (Aster Perpetuals, Avantis, Binance USD-M Futures, Bitget Perpetual Futures, Bybit Perpetuals, Coinbase Global Derivatives and 13 more) by funding rate, open interest, price, basis, volume or data age with a DQL query, e.g. any(venues where funding > 0). Returns the matching instruments with each venue's value, its timestamp and age. No charge when nothing recorded is returned. 0.01 USDC per call.

## Output

A paginated list of perpetual market records matching the DQL query, each containing venue identifier, market symbol, funding rate, open interest, price, and data age. Supports cursor-based pagination, configurable numeric formats, and optional inclusion of atomic/unknown market data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "default": 100,
   "minimum": 1,
   "description": "How many instruments one page returns."
  },
  "query": {
   "type": "string",
   "description": "DQL condition on markets, e.g. any(venues where funding > 0)."
  },
  "units": {
   "enum": [
    "published",
    "base"
   ],
   "type": "string",
   "default": "published"
  },
  "cursor": {
   "type": "string",
   "description": "The next_cursor of the previous answer, for the next page."
  },
  "allow_stale": {
   "type": "boolean",
   "default": false
  },
  "query_object": {
   "type": "object"
  },
  "include_atoms": {
   "type": "boolean",
   "default": false
  },
  "number_format": {
   "enum": [
    "json",
    "string"
   ],
   "type": "string",
   "default": "json"
  },
  "include_unknown": {
   "type": "boolean",
   "default": false,
   "description": "true also returns the instruments the data could not decide."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/debyko-crypto-perpetuals-screener-07f051ce/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.debyko.com](https://www.zero.xyz/host/api.debyko.com/llms.txt)