Kalshi vs Mobula

Side by side OpenChainBench measurements. Identical layout, no editorial verdict, the live data leads. Each panel surfaces the aggregate plus the chain and region breakdowns when the underlying bench exposes them, straight from the Prometheus queries that drive the parent benchmark pages.

Read methodology Last measured Wed, 01 Jul 2026 15:14:10 UTCWindow: rolling 24h1 shared benchmark

Kalshi

CFTC-regulated US prediction market exchange. REST trade API (trade-api/v2) with documented per-tier rate limits; the market data WebSocket requires authentication.

Mobula

Onchain data aggregator covering 80+ chains. WebSocket fast-trade feed, REST market and metadata, wallet portfolio APIs.

Side by side measurements

Fastest prediction market data API, live freshness across venues

Aggregators

Kalshi

Leads

1 ms

p99: 1 ms
rank: #2
samples: 4,158,860

Mobula

Trails

29 ms

p99: 908 ms
rank: #3
samples: 38,306

How this pair was selected

A pair is published when all four conditions hold. Both providers run in the same OpenChainBench benchmark for at least seven consecutive days. Each provider has at least 1000 samples in the measurement window. The head to head query has observable third party search demand. Both providers have a public /products/[slug] page on OCB. The full pair ledger is versioned in the public repo so the methodology is externally verifiable.