# pragma.trading Signal Engine – BTC Derivatives Pro Signals

> pragma.trading Signal Engine – BTC Derivatives Pro Signals is a paid API for AI agents from pragma.trading, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-14).

Returns a directional trading signal with score, flow, and structure breakdown for BTC (or other assets) on a specified timeframe, targeting autonomous trading agents.

## Facts

- Endpoint: POST https://pragma.trading/api/v1/signals/pro
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pragma-trading-signal-engine-btc-derivatives-pro-signals-6483e0e1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_A5ACBhk680eLN4vv-NysC

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 pragma-trading-signal-engine-btc-derivatives-pro-signals-6483e0e1 -d '<json body>'
```

Example prompt: What's the current pro-tier BTC derivatives signal on the 4H timeframe — give me the direction, score, and order flow breakdown so I can decide whether to enter a trade.

## When to prefer this

Use this endpoint when an autonomous trading agent needs a structured, scored directional signal for BTC (or other supported assets) on a specific timeframe before executing or evaluating a derivatives trade. Prefer over generic price feeds when you need a synthesized signal with order flow and structure breakdown, not just raw market data. The x402 micropayment model makes it suitable for per-call agentic workflows without subscriptions.

## Known failure modes

- Missing or invalid asset symbol returns an error or falls back to BTC default
- Invalid timeframe string (e.g. '3X') may return 400 or default to 4H
- Payment not fulfilled via x402 USDC on Base results in 402 Payment Required
- Rate limiting on free tier returns 429 Too Many Requests
- Engine unavailability or data feed outage may return 503

## How this service works

BTC derivatives signal engine for autonomous trading agents. Free API + paid tiers via x402 USDC on Base.

## Output

Returns a JSON object with a 'signal' field containing direction (e.g. long/short/neutral), a numeric score, order flow data, and a market structure breakdown, plus a 'meta' field with tier info, engine version, and pricing details.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pragma-trading-signal-engine-btc-derivatives-pro-signals-6483e0e1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pragma.trading](https://www.zero.xyz/host/pragma.trading/llms.txt)