Rate Limits & Plans - Predexon API

Plans

	Free	Dev	Pro	Enterprise
Price	$0/month	$49/month	$249/month	$499+/month
Rate Limit	1 req/sec	20 req/sec	100 req/sec	Custom
Monthly Requests	1,000	1,000,000	5,000,000	Unlimited
Overage	-	$5 / 100K	$2.50 / 100K	-
WebSocket	No access	10 subs × 10 items	100 subs × 500 items	Custom
Wildcards	-	-	2 per channel	Custom
Priority Routing	No	No	No	Yes (dedicated node)

These endpoints are free and unlimited on all plans. They do not count toward your monthly request quota.

Universally free:

All list-market endpoints across every venue (/v2/{venue}/markets)
All orderbook history endpoints across every venue (/v2/{venue}/orderbooks)
All Trading API endpoints (trade.predexon.com/api/*). Trading API calls never count against your Data API quota.

Endpoint	Description
`GET /v2/polymarket/markets`	List markets
`GET /v2/polymarket/markets/keyset`	List markets (keyset pagination)
`GET /v2/polymarket/events`	List events
`GET /v2/polymarket/events/keyset`	List events (keyset pagination)
`GET /v2/polymarket/crypto-updown`	Crypto up/down markets
`GET /v2/polymarket/market-price/{token_id}`	Market price
`GET /v2/polymarket/candlesticks/{condition_id}`	Candlesticks (condition-level)
`GET /v2/polymarket/candlesticks/token/{token_id}`	Candlesticks (per-token)
`GET /v2/polymarket/volume-chart/{condition_id}`	Volume chart
`GET /v2/polymarket/orderbooks`	Orderbook history
`GET /v2/polymarket/trades`	Trades history
`GET /v2/polymarket/activity`	Wallet activity
`GET /v2/polymarket/markets/{token_id}/volume`	Volume time series
`GET /v2/polymarket/markets/{condition_id}/open_interest`	Open interest
`GET /v2/polymarket/positions`	All positions
`GET /v2/polymarket/wallet/pnl/{wallet}`	Wallet P&L (summary + time series)
`GET /v2/polymarket/wallet/{address}/cluster`	Connected wallets cluster
`GET /v2/polymarket/uma/markets`	UMA markets list
`GET /v2/polymarket/uma/market/{condition_id}`	UMA market detail
`GET /v2/polymarket/builders/leaderboard`	Builder leaderboard
`GET /v2/polymarket/builders/{builder_code}`	Builder stats
`GET /v2/polymarket/builders/{builder_code}/markets`	Builder top markets
`GET /v2/polymarket/builders/{builder_code}/timeseries`	Builder timeseries

Endpoint	Description
`GET /v2/limitless/markets`	List markets
`GET /v2/limitless/orderbooks`	Orderbook history

Endpoint	Description
`GET /v2/opinion/markets`	List markets
`GET /v2/opinion/orderbooks`	Orderbook history

Endpoint	Description
`GET /v2/predictfun/markets`	List markets
`GET /v2/predictfun/orderbooks`	Orderbook history

Endpoint	Description
`GET /v2/dflow/trades`	Trades history

Endpoint	Description
`GET /v2/markets/search`	Search markets across all venues
`GET /v2/markets/listings`	Canonical venue listings
`GET /v2/outcomes/{predexon_id}`	Canonical outcome resolve

All endpoints under trade.predexon.com/api/* are free and do not count toward your monthly Data API quota. This includes:

These features require a Dev plan or higher. Free tier users receive a 403 error.

Feature	Endpoints
Cross-Platform Matching	`/v2/matching-markets/*`
Smart Money & Analytics	Leaderboards, cohort stats, wallet profiles, smart activity
Binance Data	`/v2/binance/*`
WebSocket	`wss://wss.predexon.com/v1/{API_KEY}`

Metric	Dev	Pro	Enterprise
Subscriptions per connection	10	100	Custom
Items per subscription	10	500	Custom
Total items	100	50,000	Custom
Wildcard subscriptions	Not allowed	2 per channel	Custom

Connection behavior & keepalive

Exceeding your rate limit returns HTTP 429 Too Many Requests. Implement exponential backoff in your application.

curl https://api.predexon.com/health
# {"status": "healthy"}