Polymarket Turns On Instant Bitcoin Deposits Via Lightning Network, Powered by Spark
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Polymarket has enabled instant self-custodial Bitcoin deposits via the Lightning Network using Spark.
Key facts
Founded in 2020, Polymarket rose to prominence during the 2024 U.S. presidential election and has added Chainlink oracles, earnings markets, and a fresh contest with regulated rival Kalshi
The move extends a funding push that started in October 2025, when Polymarket switched on standard on-chain Bitcoin deposits
Polymarket has enabled instant self-custodial Bitcoin deposits via the Lightning Network using Spark
Polymarket, the crypto-native prediction market, has begun supporting instant Bitcoin deposits over the Lightning Network
Summary
Polymarket, the crypto-native prediction market, has begun supporting instant Bitcoin deposits over the Lightning Network. In a post on X, Spark told users they can deposit BTC to the platform with more speed and more privacy than the older method offered. The move extends a funding push that started in October 2025, when Polymarket switched on standard on-chain Bitcoin deposits. The on-chain route carried a higher minimum deposit, a reflection of bridging costs.