Base URL
- Data API:
https://api.predexon.com
x-api-key header. Get your API key →Data API - 58 Endpoints
- Polymarket
- Kalshi
- Binance
- Other Platforms
Markets & Pricing
| Method | Endpoint | Description |
|---|---|---|
GET | /v2/polymarket/markets/keyset | List markets - search, filter, sort with cursor pagination |
GET | /v2/polymarket/events/keyset | List events - top-level event groupings with cursor pagination |
GET | /v2/polymarket/crypto-updown | Crypto up/down - BTC, ETH, SOL, XRP, HYPE, DOGE, BNB across 5m–daily |
GET | /v2/polymarket/market-price/{token_id} | Market price - current or historical |
GET | /v2/polymarket/candlesticks/{condition_id} | Candlesticks - OHLCV at 1m/1h/1d intervals, normalized to YES side |
GET | /v2/polymarket/candlesticks/token/{token_id} | Candlesticks by token - per-token OHLCV with un-normalized NO prices |
GET | /v2/polymarket/markets/{token_id}/volume | Volume time series - cumulative by buy/sell |
GET | /v2/polymarket/volume-chart/{condition_id} | Volume chart - per-period with YES/NO breakdown |
GET | /v2/polymarket/markets/{condition_id}/open_interest | Open interest - historical OI tracking |
GET | /v2/polymarket/orderbooks | Orderbooks - historical snapshots at ms resolution |
Discovery & Taxonomy
| Method | Endpoint | Description |
|---|---|---|
GET | /v2/polymarket/search | Unified search - markets, events, and tags in one query |
GET | /v2/polymarket/categories | Categories - top-level categories with counts + active volume/OI |
GET | /v2/polymarket/tags | Tags - curated tags with rolled-up volume/OI metrics |
GET | /v2/polymarket/tag/{slug} | Tag detail - metadata + metrics for one tag |
GET | /v2/polymarket/tag/{slug}/subtags | Tag subtags - ranked child subtags with event counts |
GET | /v2/polymarket/series | Series - recurring market groupings (daily/weekly/monthly) |
GET | /v2/polymarket/series/{slug} | Series detail - one series plus its events (keyset) |
Trades & Activity
| Method | Endpoint | Description |
|---|---|---|
GET | /v2/polymarket/trades | Trades - by market, token, or wallet |
GET | /v2/polymarket/activity | Activity - splits, merges, redeems |
GET | /v2/polymarket/positions | Positions - cross-wallet position scanner |
Wallet Analytics
| Method | Endpoint | Description |
|---|---|---|
GET | /v2/polymarket/wallet/{wallet} | Profile - full metrics across all time windows |
GET | /v2/polymarket/wallets/profiles | Batch profiles - up to 20 wallets at once |
GET | /v2/polymarket/wallet/positions/{wallet} | Positions - open + historical with P&L |
GET | /v2/polymarket/wallet/pnl/{wallet} | P&L - realized, unrealized, total |
GET | /v2/polymarket/wallet/{wallet}/markets | Market breakdown - per-market performance |
GET | /v2/polymarket/wallet/{wallet}/similar | Similar wallets - portfolio overlap detection |
GET | /v2/polymarket/wallet/volume-chart/{wallet} | Volume chart - BUY/SELL breakdown |
GET | /v2/polymarket/wallet/identity/{wallet} | Identity - display name, X handle, badges, wallet type, USDC balance |
POST | /v2/polymarket/wallet/identities | Identities (batch) - up to 200 addresses, proxy or signer EOA |
GET | /v2/polymarket/wallet/{address}/cluster | Connected wallets - on-chain transfer graph + identity-proof clusters |
Smart Money & Analytics
Requires Dev plan or higher.
| Method | Endpoint | Description |
|---|---|---|
GET | /v2/polymarket/markets/smart-activity | Smart activity - markets where top wallets trade |
GET | /v2/polymarket/market/{condition_id}/smart-money | Smart money - net positioning for a market |
GET | /v2/polymarket/leaderboard | Leaderboard - global wallet rankings |
GET | /v2/polymarket/leaderboard/market/{condition_id} | Market leaderboard - per-market rankings |
GET | /v2/polymarket/market/{condition_id}/top-holders | Top holders - largest positions |
GET | /v2/polymarket/position/{token_id}/top-holders | Position top holders - largest holders of one token |
GET | /v2/polymarket/wallets/filter | Filter wallets - by market + performance |
GET | /v2/polymarket/cohorts/stats | Cohort stats - aggregate by trading style |
UMA
| Method | Endpoint | Description |
|---|---|---|
GET | /v2/polymarket/uma/markets | List UMA markets - non-sports UMA questions, sorted by last_event_at |
GET | /v2/polymarket/uma/market/{condition_id} | Get UMA market - current oracle status + event timeline |
Builders
V2-only. Builder attribution excludes V1 fills and the zero-sentinel builder.
| Method | Endpoint | Description |
|---|---|---|
GET | /v2/polymarket/builders/leaderboard | Builder leaderboard - V2 builders ranked by volume or fee revenue |
GET | /v2/polymarket/builders/{builder_code} | Builder stats - single-builder summary + full (taker_bps, maker_bps) history |
GET | /v2/polymarket/builders/{builder_code}/markets | Builder markets - top markets attributed to a builder over a rolling window |
GET | /v2/polymarket/builders/{builder_code}/timeseries | Builder timeseries - bucketed volume + fee revenue over a rolling window |
GET | /v2/polymarket/builders/wallet/{wallet} | Wallet builder fees - total builder fees a wallet paid, per-builder breakdown |
| Method | Endpoint | Description |
|---|---|---|
GET | /v2/kalshi/markets | List markets - filter by ticker, event, status, price range |
GET | /v2/kalshi/trades | Trades - historical with taker side |
GET | /v2/kalshi/orderbooks | Orderbooks - historical snapshots, prices in cents |
Requires Dev plan or higher.
| Method | Endpoint | Description |
|---|---|---|
GET | /v2/binance/ticks/{symbol} | Ticks - raw book ticker at microsecond granularity |
GET | /v2/binance/candles/{symbol} | Candles - OHLCV from 1s to 1d intervals |
Limitless
| Method | Endpoint | Description |
|---|---|---|
GET | /v2/limitless/markets | Markets - with trade type filter |
GET | /v2/limitless/orderbooks | Orderbooks - historical snapshots |
Opinion
| Method | Endpoint | Description |
|---|---|---|
GET | /v2/opinion/markets | Markets - with event grouping |
GET | /v2/opinion/orderbooks | Orderbooks - historical snapshots |
Predict.Fun
| Method | Endpoint | Description |
|---|---|---|
GET | /v2/predictfun/markets | Markets - with event grouping |
GET | /v2/predictfun/orderbooks | Orderbooks - historical snapshots |
Access Tiers
Free - 16 endpoints
All Polymarket market data plus Kalshi markets, trades, and orderbooks. No credit card required.
Dev & Pro
Wallet analytics, smart money, leaderboards, Binance data, and WebSocket streaming.