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Polymarket acquires prediction market API startup Dome

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Polymarket acquires prediction market API startup Dome

Polymarket has acquired Dome, a Y Combinator-backed startup that is building a unified API solution for developers to access and build across multiple prediction market platforms.

Summary

  • Polymarket has acquired Y Combinator-backed startup Dome.
  • Dome offers a unified API for cross-platform prediction market access.
  • It has raised $500,000 from Y Combinator and $4.7 million in seed funding.

The acquisition was confirmed by both companies in a Feb. 19 post on X, though neither side shared details about Dome’s future roadmap within Polymarket or how the team will be integrated. The financial terms of the deal were not disclosed.

According to details from Y Combinator, Dome was part of its Fall 2025 cohort and is developing a unified API for prediction markets through a single integration layer, where “developers can access live and historical data.”

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“Dome makes it simple to trade, embed market data into products, and deploy strategies across multiple platforms through one interface,” it said.

Dome raised $500,000 from Y Combinator and secured a further $4.7 million in seed funding, according to details shared on the X profile of co-founder Kunal Roy, who, alongside Kurush Dubash, previously served as founding engineers at Alchemy.

“We’re obsessed with prediction markets and want to have the biggest impact in the space. There’s no better place to do that than Polymarket.” Dubash wrote on X.

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Besides QCEX, a derivatives exchange and clearinghouse licensed by the U.S. Commodity Futures Trading Commission, which Polymarket acquired in a bid to re-enter the country, Dome marks the company’s first official acquisition focused on developer infrastructure.

Since it was greenlighted by the commission to operate an intermediated trading platform, Polymarket has secured multiple major partnerships with media brands like Yahoo Finance and Google Finance, alongside sports organizations such as Major League Soccer and the National Hockey League.

Last month, the company partnered with Parcl to launch a prediction market tied to real estate trends. It has also expanded onto the Solana blockchain through an integration with Jupiter and was recently added to the MetaMask mobile app, widening its retail distribution.

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Crypto World

MARA Takes Controlling Stake in French AI Data Center Operator Exaion

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MARA Takes Controlling Stake in French AI Data Center Operator Exaion

MARA Holdings has completed the purchase of a majority stake in French computing infrastructure operator Exaion, deepening its push into artificial intelligence (AI) and cloud services.

The deal, first agreed in August 2025 with EDF Pulse Ventures, gives MARA France a 64% stake in Exaion after required regulatory approvals were secured, the Bitcoin miner said in a Friday announcement. French energy giant EDF will remain a minority shareholder and continue as a customer of the business.

The investment also creates a broader alliance. NJJ Capital, the investment vehicle of telecom entrepreneur Xavier Niel, will acquire a 10% stake in MARA France as part of a partnership with MARA.

MARA shares are down 17% YTD. Source: Google Finance

Governance of Exaion will reflect the new ownership structure. The company’s board will include three representatives from MARA, three from EDF Pulse Ventures and one from NJJ, alongside Exaion’s chief executive and co-founder. Niel and MARA CEO Fred Thiel will both hold seats on the board.

Related: Bitcoin miners chase 30 GW AI capacity to offset hashprice pressure

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Bitcoin miners pivot to AI amid pressure

Bitcoin mining companies are increasingly turning to AI and data center computing as pressure on mining economics grows. After the 2024 halving cut block rewards and rising network difficulty squeezed margins, several publicly traded miners began adopting a hybrid model, keeping mining as a source of cash flow while building steadier revenue from AI cloud and high-performance computing services.

HIVE Digital Technologies is one example of the shift. The company reported strong results even during weaker Bitcoin prices, supported by expanding AI operations. CoreWeave has also moved from crypto mining to become a major AI infrastructure provider after GPU mining demand fell.

Other firms, including TeraWulf, Hut 8, IREN and MARA, are also repurposing mining facilities and energy capacity into AI data centers.

In November last year, CleanSpark announced plans to raise roughly $1.13 billion in net proceeds, up to $1.28 billion if additional notes are purchased, through a $1.15 billion senior convertible note offering to fund expansion of its Bitcoin mining and data center operations.

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Related: Crypto miner Bitdeer tanks 17% after $300M debt offering

Bitcoin mining difficulty jumps 15%

Meanwhile, Bitcoin’s mining difficulty rose about 15% to 144.4 trillion on Friday, reversing an 11% drop earlier in the month, the steepest decline since China’s 2021 mining ban. The earlier fall followed severe winter storms across the United States that disrupted power grids and temporarily forced many miners offline, sharply reducing hash rate.