Polymarket documents PolyBolt websocket API for live price data
Polymarket published technical documentation on September 23 for PolyBolt, a WebSocket data channel that streams live crypto, equity, and TWAP reference prices. The service requires existing CLOB API credentials and targets institutional and algorithmic traders who need real-time pricing feeds for event-contract markets. The docs describe a protocol where clients send JSON text frames tagged with an operation code and the server responds with an acknowledgment or error acknowledgment. The release appears to be routine technical documentation rather than a product announcement.
Real-time data feeds are the raw material of algorithmic trading desk decisions. PolyBolt lets institutional clients price event-contract strategies against equity and crypto benchmarks without leaving Polymarket's ecosystem, tightening execution loops for the fastest-moving participants. Kalshi has no comparable streaming infrastructure public yet; its recent brokerage integrations with Robinhood and others depend on partner technology for price display.
ForecastEx faces the same gap. The immediate stake is which CFTC-registered venue becomes the default backend for quant-driven shop strategies. If Polymarket's feed quality and latency edge out rivals, market makers will anchor liquidity there first, thickening order books and drawing more flow in a self-reinforcing loop. Polymarket's international volume competes for that same algorithmic attention through offshore perpetuals, giving the platform two lanes of institutional capture.