# Signal Engine RSI 7 Extremes Arena Strategy Signal

> Signal Engine RSI 7 Extremes Arena Strategy Signal is a paid API for AI agents from signal-engine-production-d88d.up.railway.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Returns a live RSI-based trading signal (long/short/neutral) with score, take-profit, stop-loss, and hold time for a given crypto symbol

## Facts

- Endpoint: GET https://signal-engine-production-d88d.up.railway.app/v1/arena/rsi_7_extremes/SOL
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signal-engine-rsi-7-extremes-arena-strategy-signal-1dbe9878
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FTPtuDux1vaIx64OoLjlQ

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 signal-engine-rsi-7-extremes-arena-strategy-signal-1dbe9878
```

Example prompt: What does the RSI 7 Extremes arena signal say for SOL right now — should I go long or short, and what are the take-profit and stop-loss percentages?

## When to prefer this

Use this endpoint when you need a fast, pre-computed RSI-7-extremes trading signal for a specific crypto (e.g. SOL) with actionable parameters like take-profit, stop-loss, and hold time — especially in automated trading agents that need a structured signal with reasoning rather than raw price data or a generic indicator value.

## Known failure modes

- Unsupported symbol returns 404 or empty result
- Market data unavailable returns error or stale context_source
- Invalid strategy_id returns 404
- Network timeout if Railway deployment is cold-starting
- RSI value may be stale if upstream price feed is delayed

## How this service works

Individual arena strategy signal

## Output

Returns a JSON object with: signal direction (long/short/neutral), a numeric score (0-100), take-profit percentage, stop-loss percentage, recommended hold time in seconds, RSI value with human-readable reasoning (e.g. 'Extreme oversold (RSI=13.6)'), strategy name, symbol, and whether context came from live data.

## Example request

```json
{
 "symbol": "SOL",
 "strategy_id": "rsi_7_extremes"
}
```

## Request schema (JSON Schema)

```json
{
 "output": {
  "required": [
   "strategy_id",
   "symbol"
  ],
  "properties": {
   "score": {
    "type": "number",
    "maximum": 1,
    "minimum": 0
   },
   "reason": {
    "type": "string",
    "description": "Present when signal is null (e.g. no_signal, no_context)"
   },
   "signal": {
    "enum": [
     "long",
     "short"
    ],
    "type": "string",
    "nullable": true
   },
   "sl_pct": {
    "type": "number",
    "description": "Stop-loss percentage"
   },
   "symbol": {
    "type": "string"
   },
   "tp_pct": {
    "type": "number",
    "description": "Take-profit percentage"
   },
   "reasoning": {
    "type": "string"
   },
   "strategy_id": {
    "type": "string"
   },
   "hold_time_sec": {
    "type": "integer",
    "description": "Suggested hold time in seconds"
   },
   "strategy_name": {
    "type": "string"
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "score": 0.82,
  "signal": "long",
  "sl_pct": 0.008,
  "symbol": "BTC",
  "tp_pct": 0.015,
  "reasoning": "Bollinger band squeeze with volume expansion",
  "strategy_id": "vwap_reversion",
  "hold_time_sec": 300,
  "strategy_name": "VWAP Reversion"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signal-engine-rsi-7-extremes-arena-strategy-signal-1dbe9878/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from signal-engine-production-d88d.up.railway.app](https://www.zero.xyz/host/signal-engine-production-d88d.up.railway.app/llms.txt)