# fold · x402 — Perpetuals Market Scanner

> fold · x402 — Perpetuals Market Scanner is a paid API for AI agents from x402.fold.computer, paid per call via x402, $0.05/call, status down (last checked 2026-09-15).

Scans and screens the perpetuals futures market universe, returning machine-readable market intelligence sorted by price change, funding rate, and volume for onchain agents.

## Facts

- Endpoint: GET https://x402.fold.computer/scan
- Price: $0.05/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fold-x402-perpetuals-market-scanner-043e331a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lkaMmVoJYdn6FM-RQbCTF

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 fold-x402-perpetuals-market-scanner-043e331a
```

Example prompt: Scan all 636 perpetuals markets and show me the ones with at least $10M in 24h volume, sorted by funding rate and price change — I want to find the most active perps right now.

## When to prefer this

Choose this endpoint when an onchain or autonomous AI agent needs machine-readable perpetuals market intelligence — specifically when you want to screen a broad universe of perp markets (up to 636) by funding rate, price change, or volume, and you are operating in a micropayment-enabled x402 environment. Prefer over manual data aggregation or general-purpose price APIs when you need structured, sortable perps screening in a single call.

## Known failure modes

- Payment not fulfilled via x402 protocol — returns 402 Payment Required
- Invalid parameter types (e.g. non-boolean for 'full') — returns validation error
- minVol filter too high — returns empty or sparse market list
- Network or upstream data provider outage — returns error status

## How this service works

Machine-readable market intelligence for onchain agents, served over x402.

## Output

Returns a structured object with status and a data payload screening the perpetuals universe, including metrics like price change, funding rates, and volume, suitable for programmatic consumption by an onchain AI agent.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "full": {
   "type": "boolean",
   "description": "Scan all 636 markets instead of top 50"
  },
  "minVol": {
   "type": "number",
   "description": "Minimum 24h quote volume filter"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "status",
  "data"
 ],
 "properties": {
  "data": {
   "type": "object",
   "description": "screen the entire perp universe; sort by change/funding/volume"
  },
  "status": {
   "type": "string",
   "example": "success"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fold-x402-perpetuals-market-scanner-043e331a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.fold.computer](https://www.zero.xyz/host/x402.fold.computer/llms.txt)