Trend Signals
Derived crypto trend data, priced per call for autonomous agents. No signup, no API key, no subscription — pay with USDC on Base using x402.
This is not a price feed. Prices are a commodity. What is sold here is the
computed layer: PP-SuperTrend trend state across ~1,600 assets, how many bars ago each
flipped, the band level where the trend invalidates, RSI divergences and 14-day momentum — derived from
years of history by a pipeline that runs continuously.
Endpoints
| Route | Price | Returns |
|---|---|---|
GET /x402/signal/{SYMBOL} | $0.01 | PP-SuperTrend state for ONE crypto asset: 1D/4H/1W signal, flip age in bars, band levels, divergence and 14d momentum. |
GET /x402/signals | $0.05 | Full derived sweep across ~1.6k crypto assets: trend state, flip age, bands, per-timeframe signals, momentum. The whole book in one call. |
GET /x402/flips/recent | $0.02 | Assets whose PP-SuperTrend trend flipped most recently, newest first, with price and band at the flip. |
GET /x402/divergences/recent | $0.02 | Current RSI divergences (price/RSI disagreement) across the crypto universe. |
Machine-readable price list: /x402/catalog · health: /x402/health
How to call it
Request without payment and you get an HTTP 402 describing exactly what to pay.
Any x402 client handles this automatically:
import { wrapFetchWithPayment } from "@x402/fetch";
const pay = wrapFetchWithPayment(fetch, signer); // any funded Base wallet
const res = await pay("https://trend-signals.com/x402/signals?limit=100");
const { signals } = await res.json();
Settlement is on Base in USDC. Gas is paid by the facilitator, so a caller needs only USDC — no ETH. Payment is final on settlement; there is no invoice, account or chargeback.
Field notes
signal_1d / signal_4h / signal_1w | Trend direction per timeframe — bull or bear. |
candles_since_flip | Bars since the trend last flipped. Freshness, in the timeframe's own units. |
band_1d | The PP-SuperTrend band — the level at which the current trend is invalidated. |
momentum_14d / since_flip_pct | Percent move over 14 days, and since the flip. |