# ICT Fair Value Gap (FVG) Detector

> ICT Fair Value Gap (FVG) Detector is a paid API for AI agents from api-production-54bd.up.railway.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-16).

Returns Fair Value Gap (FVG) levels for a given trading instrument, identifying bullish and bearish imbalance zones used in ICT/Smart Money trading strategies.

## Facts

- Endpoint: POST https://api-production-54bd.up.railway.app/v1/fvg
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ict-fair-value-gap-fvg-detector-2223e35f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_i1SAAA_3m9zKgv3VInfcB

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 ict-fair-value-gap-fvg-detector-2223e35f -d '<json body>'
```

Example prompt: Show me the current Fair Value Gaps on BTCUSDT on the 1-hour timeframe so I can plan my ICT smart money entries.

## When to prefer this

Use this endpoint when you need ICT-style Fair Value Gap data for algorithmic or AI-assisted trading strategies, backtesting smart money concepts, or real-time identification of price imbalance zones. Prefer this over generic OHLCV endpoints when you specifically need pre-calculated FVG levels rather than raw candlestick data.

## Known failure modes

- Invalid or unsupported symbol returns 400 or empty result
- Unsupported timeframe parameter returns error
- Payment not included or insufficient USDC triggers 402 Payment Required
- No FVGs detected in recent candles returns empty array
- Rate limiting or upstream data outage returns 503

## How this service works

Trading Data API — 23 endpoints for agents: crypto & stock prices/OHLCV, ATR, Fair Value Gaps, ICT liquidity levels, funding/OI, order books, Kalshi prediction markets, DeFi TVL, volatility, macro calendar, and an AI momentum score. Full catalog at /v1/status.

## Output

Returns a list of Fair Value Gap (FVG) zones for the requested symbol, including the price range of each gap (high/low boundaries), direction (bullish or bearish), the candle timestamp where the gap formed, and whether the gap has been filled or is still open. Useful for ICT/SMC traders identifying price imbalance areas likely to act as magnet zones.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ict-fair-value-gap-fvg-detector-2223e35f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api-production-54bd.up.railway.app](https://www.zero.xyz/host/api-production-54bd.up.railway.app/llms.txt)