# fold · x402 Signal

> fold · x402 Signal is a paid API for AI agents from x402.fold.computer, paid per call via x402, $0.1/call, status down (last checked 2026-09-15).

Returns machine-readable trading signals (long/short/hold) with confidence, stop, target, R:R ratio, and reasoning for a given perpetuals symbol.

## Facts

- Endpoint: GET https://x402.fold.computer/signal
- Price: $0.1/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-signal-efb869eb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L7N_WvDiCSl1xTLOttBrs

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-signal-efb869eb
```

Example prompt: Give me a trading signal for BTC perps — should I go long, short, or hold, and what are the stop loss, target, and confidence level?

## When to prefer this

Use this endpoint when an AI agent needs structured, machine-readable trading signals for crypto perpetuals with explicit confidence levels, stop/target levels, and R:R ratios — especially in automated onchain trading workflows that require pay-per-call access via x402.

## Known failure modes

- Missing or invalid symbol parameter returns an error
- Unknown or unsupported perp symbol may return no signal
- Payment failure via x402 protocol blocks access
- Stale market data may reduce signal confidence
- Network timeout if upstream data sources are unavailable

## How this service works

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

## Output

A JSON object containing a status field and a data object with the trading direction (long/short/hold), confidence score, stop loss price, price target, risk-reward ratio, and the reasoning behind the recommendation for the requested perpetuals symbol.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "symbol"
 ],
 "properties": {
  "symbol": {
   "type": "string",
   "description": "Perp symbol, e.g. BTC, ETH, SOL"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "status",
  "data"
 ],
 "properties": {
  "data": {
   "type": "object",
   "description": "long/short/hold with confidence, stop, target, R:R and reasoning"
  },
  "status": {
   "type": "string",
   "example": "success"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fold-x402-signal-efb869eb/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)