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Guides, API references, and SDK examples for the Supagain platform. Ship a prediction-aware product in an afternoon.
Search the docs — predictions, API, watchlists, webhooks…⌘ KFree tier covers core features — predictions, polls, watchlists, and the community feed.
Stocks, ETFs, major forex pairs, and top crypto. All prices live, never delayed.
Place a prediction with a confidence band. Score added to your public record automatically.
Every section ships with concept docs, recipes, and a runnable example.
Create an account, set up your first watchlist, and place your first prediction in under five minutes.
Read docsHow ARIMA, XGBoost, and ensemble models work — and how to read confidence intervals like a pro.
Read docsSubscribe to technical signals across stocks, crypto, and forex. Filter by timeframe, asset, and indicator.
Read docsBuild sectioned watchlists, sync across devices, and set price/news alerts that actually fire.
Read docsREST and WebSocket endpoints for predictions, prices, and account data. Full schema with examples.
Read docsReceive real-time events when models fire, prices breach thresholds, or your league rank shifts.
Read docsScore system, tier promotion rules, and how the daily streak counter handles missed days.
Read docsPosting, replies, follow audiences, and how the daily poll consensus is calculated.
Read docsHand-picked from what's getting bookmarked the most.
What 95% really means, and when to trust the upper bound.
Authenticate, make your first call, and stream live prices.
Reorder rules, sectioning, and conflict resolution.
HMAC verification, replay windows, and clock skew.
Combine indicators, asset classes, and timeframes.
Brier score, decay factors, and tier-promotion math.
// 1. Authenticate
import { Supagain } from '@supagain/sdk'
const sg = new Supagain({ apiKey: process.env.SUPAGAIN_KEY })
// 2. Get a prediction
const forecast = await sg.predictions.get({
symbol: 'NVDA',
horizon: '1d',
model: 'ensemble',
})
// → { mean: 143.7, lower95: 138.2, upper95: 149.2 }Real engineers behind every reply. Median first response under three hours on weekdays.