If you have an existing quant system and you want Polymarket as a venue alongside your other markets, we build native CLOB API integrations. EIP-712 order signing, proxy-wallet support, websocket book streams, rate-limit handling. Technically: we wrap the CLOB REST + WS endpoints in a typed client compatible with your existing OMS, with retry/back-off and order lifecycle telemetry.
Four layers, each independently testable and swappable. New to the topic? See the CLOB API glossary entry and our guide on how to make a Polymarket bot.
Proxy-wallet model with optional EOA mode. We handle the L1/L2 funding flow, USDC approvals, and key rotation policies.
Markets metadata, orderbook snapshots, fills, and resolutions - REST + WS streams normalized into your event bus. Reconnect/replay built-in.
Limit, FOK, IOC, market - all signed and submitted via EIP-712. Includes order lifecycle (placed/filled/canceled/expired) emitted to your telemetry.
Rate-limit accounting, backoff, dead-letter for failed requests, structured logs. The kind of work nobody wants to write but everybody needs.
Typed wrapper, async streams, normalized events. Same API surface for Polymarket and Kalshi in our SDK.
# Python - typed CLOB client wrapper from predikted.clob import ClobClient, OrderType client = ClobClient( host="https://clob.polymarket.com", chain_id=137, # Polygon mainnet proxy_wallet=True, ) # Book snapshot book = client.get_orderbook(token_id="0xabc…") mid = (book.best_bid + book.best_ask) / 2 # Place a signed limit order order = client.place_order( token_id="0xabc…", side="BUY", price=0.49, size_usdc=500, order_type=OrderType.GTC, ) # Subscribe to your fills async for event in client.stream_fills(wallet=client.account): metrics.observe(event)
Polymarket's 100 req/min public endpoint is shared. If you're polling, you'll hit it. We default to websocket streams for book data and rate-account your authenticated calls.
Proxy wallets give a smoother UX but add an indirection layer to debug. EOAs are simpler but cost more per setup. We default to proxy unless you have a specific reason otherwise.
USDC is approved per spender. We surface the approval state in your dashboard so you don't get a surprise 'transfer failed' at 3am.
Our integration runs on infra you own. We deliver code; you deploy with your keys. If someone says 'just send the seed', they're an arnaque.
Where Polymarket CLOB plugs into your existing system.
Most common: you have a Kafka/RabbitMQ event bus. We hook the CLOB client into it as a venue.
Open-source quant frameworks. We ship adapters that expose Polymarket as a venue inside the framework's abstractions.
Quant analysts driving execution from notebooks. We ship a thin REST wrapper they can call from Python directly.
Typed Python or TypeScript SDK. You deploy in your infra.
Includes adapter for your OMS, telemetry, dashboards, and ops runbook.
Tell us your OMS / event bus / language. We'll come back with an integration spec - typically two pages, costed line by line.