Polymarket API — Real-Time Trades, Markets & Outcomes
Stream live Polymarket trades, market data, positions, and outcomes via Kafka and GraphQL. Built for trading bots, analytics platforms, and institutions needing real-time Polymarket data.
Built for Polymarket Traders & Analysts
Application-Ready Polymarket Data
Parsed Polymarket data for prediction markets, trades, positions, traders, and outcomes — with metadata and USD-normalized values.
OHLCV Candles for All Markets
Precomputed OHLCV (open, high, low, close, volume) candles for every market to power price charts and analytics.
Ultra-Low-Latency Real-Time Data
Sub-500ms real-time Polymarket market data for new markets, trades, and prices via Kafka or WebSockets.
GraphQL API for Polymarket & Prediction Markets
Query historical and real-time prediction market data: trades, markets, traders, positions, outcomes, and settlements.
Historical Polymarket Data (2+ Years)
Access 2+ years of historical Polymarket data, with extended history available on demand for backtesting.
The Real Problem
If you're building on Polymarket or other prediction markets, you quickly face:
Multiple APIs for different parts of the lifecycle
WebSockets for price updates but no unified Information model
On-chain data for settlement that must be stitched manually Inconsistent historical vs real-time datasets
No deterministic replay model
Manual normalization of markets, outcomes, and tokens
Engineering effort shifts from alpha to plumbing. We eliminate that complexity.
Polymarket Data Infrastructure — Real-Time & Reliable
Stream every Polymarket trade, position, market update, and outcome in real time via Kafka or GraphQL — no polling, no gaps. Instead of fragmented REST endpoints, you receive:
- Real-time Trades
- Market Creation & Resolution Events
- Settlement & Redemption Events
- Fully normalized Question → Condition → Outcome mapping
- Kafka streams + GraphQL subscription WebSocket
- Historical APIs for replay & backfill
Complete Market Lifecycle Visibility
From market creation to final redemption, every stage is captured in a unified stream: Market creation -> Market updates -> Trade executions -> Outcome selection -> Resolution -> Redemption / settlement -> Collateral flowsYou no longer need to reconstruct lifecycle state. You consume it.
Canonical Normalization Across Markets
We normalize prediction markets into a consistent model: Marketplace → Question → Condition → Outcomes → Tokens This unlocks:
As new prediction markets are added, your architecture remains stable
True Real-Time Streaming (Not Just Polling)
Delivery options:
Kafka + Protobuf for high-throughput systems
GraphQL WebSocket subscriptions for real-time apps
Historical APIs for replay and backfill
Your system reacts as markets move — not seconds later
We Transform Raw Trade Activity Into Actionable Insight
Your stream enables:
- Immediate detection of every executed trade
- Identification of aggressive buyers vs passive sellers
- Directional outcome flow monitoring
- Real-time liquidity shifts
- Detection of abnormal trade sizes
- High-frequency trade monitoring
Use This To Power:
- Trading engines
- Market making systems
- Alpha discovery models
- Whale alerts
- Volatility monitoring
This is execution-level trade flow — not delayed summaries.
Instant Event Detection
- Markets move when:
- New markets are created
- Outcomes resolve
- Redemption occurs
- Liquidity surges
- Your stream allows:
- Instant resolution alerts
- Early detection of newly listed markets
- Real-time settlement monitoring
- Trigger-based automation
- Bot execution pipelines
No polling loops. No blind spots.
Trusted by the leading organizations in Web3
We Transform Raw Trade Activity Into Actionable Insight
Polymarket’s WebSocket is excellent for:
- Order book updates
- Market price changes
But serious systems require:
- Lifecycle completeness
- Settlement accounting
- Replayable history
- Infrastructure-native scaling
- Unified normalization
- Multi-protocol extensibility
Native APIs are product-facing. We are infrastructure-facing.
Capability
Polymarket Native
Your Streams
Live order book updates
(CLOB WS)
Optional (depends on what you expose)
Market discovery + metadata
(Gamma REST)
(normalized + streamable)
Full lifecycle coverage in one model
(spread across services)
Settlement / redemption truth
Requires on- chain/subgraph stitching
(event-complete stream)
Stream infra (Kafka topics, partitions, retention)
Deterministic replay + backfill strategy
DIY
Before
Multiple integrations
Manual reconstruction Polling + WebSockets
Inconsistent datasets
Fragile ingestion pipelines
After
Unified stream
Lifecycle completeness- Deterministic replay
- Infrastructure-native ingestion
- Cross-protocol normalization
Built for These Teams
Prediction Market Terminals
- OHLCV Chart for Markets
- Real-time Trades
- Trading Analytics
- Wallet Positions & Portfolio
Quant & Trading Teams
- Real-time Trades & Fee Tracking
- Liquidity Analysis
- Market Microstructure Modeling
Alerting & Monitoring Systems
- Whale Trades
- Sudden Volume Spikes
- Resolution Detection
- Wallet Tracking
Data Platforms
- Live Dashboards
- Market Analytics
- Historical Databases
Bot Builders
- Fast Trade Detection
- Arbitrage Monitoring
- Outcome Price Movement Tracking
Enterprise-Ready Infrastructure
- Schema-first design
- Deterministic message formats
- Versioned protocol support
- Extensible to additional prediction markets
- Scalable partitioning for high throughput
Pricing
Developer Plan (Free)
Free plan for developers or small projects
Personal Use Only
1k Points For Trial
10 Rows Per Request
Public Telegram Support
All Blockchains
10 Request/minute
2 simultaneous streams for Testing purposes
Free Plan for
developer or small project
$0 / month
1K points for trial
All Blockchains
Commercial Plan
Tailored solutions for business and enterprise needs
Customizable for your needs
24/7 Access to our Engineering Team
Priority support via Slack and Telegram
All Blockchains
Scalable API calls & No Throttling
Multiple Data Interfaces (SQL, Cloud, Kafka and more)
Dedicated onboarding & custom SLA
Datashares & Exports
Access blockchain data on various platforms
Available on Snowflake, BigQuery, S3, Azure, & more
Reliable historical and real-time blockchain data
No setup or infrastructure needed
Structured data for AI agents & MCP servers
Accelerate your go-to-market with instantly usable data
Balance & Audit data for Custodians, Exchanges & more
FAQ
Polymarket initially, expanding to additional prediction market protocols.
Yes — via API queries and stream replay.
Yes — for trades and settlement events.
Outcome tokens and collateral tokens (e.g., USDC).
Kafka (Protobuf), GraphQL WebSocket subscription, and API endpoints.
or get in touch
Telegram