HTTP push for every Polymarket event.
Subscribe your server to 20+ event types with granular filtering. HMAC-signed, at-least-once delivery across trader flow, market metrics, lifecycle, oracle, and asset prices.
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Instant delivery
Events fire the moment they hit the chain. No polling, no cache windows. Your endpoint hears about it sub-second.
20+ event types
Trader activity, PnL crossings, probability and volume spikes, market lifecycle, oracle, and asset price events, all routable to your endpoint.
HMAC-signed delivery
Every payload is signed with your subscription secret. Verify authenticity in one line of middleware and reject tampered requests.
From whale trades to oracle disputes
Trader flow, market metrics, lifecycle, oracle outcomes, and Chainlink prices. Subscribe only to the events your system needs.
Trader Activity
Fire on whale trades, first trades from tracked wallets, and per-trader PnL crossings.
- Filter by wallet address, trade size, or market
- Whale trade threshold, first-trade-of-market detection
- Per-wallet PnL crossings in USDC or percentage
Probability & Volume Spikes
Detect sudden probability moves and volume surges on any market, event, or tag.
- Probability spike thresholds with configurable windows
- Volume spike detection per market and event
- Pre-aggregated metric deltas with no client-side math
Volume Milestones
Get notified when market, event, or position volume crosses a threshold.
- Market, event, and position-level milestones
- Customizable USDC thresholds per subscription
- Fires once per crossing, no duplicate noise
Metric Thresholds
Threshold-based events for any condition, event, or position metric, beyond raw USD volume.
- Trigger on transaction counts, velocity, or custom indicators
- Condition, event, and position-scoped subscriptions
- Configurable thresholds per metric
Market Lifecycle
Track every state change, from market creation through close-to-bond and resolution.
- Market created, closing soon, and resolved events
- Filter by tag, category, series, or status
- Includes neg-risk child market state changes
Oracle & Resolution Events
UMA oracle lifecycle and admin state changes delivered as they happen.
- Proposal, Dispute, Settled, and Resolution events
- Admin states: Reset, Flag, Pause, ManualResolution
- Neg-risk outcome reporting included
Asset Prices
Chainlink price ticks and candle windows for tracked crypto assets, straight to your endpoint.
- Raw price ticks for every Chainlink update
- Window updates on candle open and close
- Correlate crypto prices with prediction market moves
How Struct stacks up against the competition
Compare real performance metrics and data coverage across Polymarket data providers.
| Features | Polymarket | Competitor 1 | Competitor 2 | |
|---|---|---|---|---|
Resolution Latency: Time between market resolution on-chain and data availability in APIs. | Instant | ~2min | ~2min | ~2min |
PnL Latency: Time between order placement and profit/loss calculation. | Instant | ~10s cache | N/A | 60m refresh |
Positions Latency: Time between position creation/updates and data availability in APIs. | Instant | ~10s cache | ~10s | ~1s |
PnL Richness: Amount of PnL data available for each account. | Full | Limited | N/A | Full |
PnL History: Live position and PnL data for all token holders. | All-time | All-time | N/A | <30d |
Price Metrics: Amount of price metric timeframes and types available. E.g. 1m, 24h, 7d for markets, events, positions. | 27 | 10 | 4 | 4 |
Websockets: Ability to stream data in real-time using WebSockets. | ||||
Webhooks: Ability to receive data updates via webhooks. | ||||
Managed Backfill: Ability to backfill historical & realtime data into your own database. | ||||
Rate Limits: Maximum number of API requests allowed per second. | No limit | 20–400/sec1 | No limit | No limit |
AI Chat Agents: Built-in AI chat agents for market research, analysis, and insider detection. | ||||
Automations: Event-triggered workflows with AI processing, delivered to Discord, Telegram, or webhooks. | ||||
Multiple Venues: Ability to access data from multiple prediction markets. | Roadmap |