Polymarket has moved its main blockchain indexing system in-house, allowing the platform to detect some onchain events up to 14 blocks, or about 28 seconds, faster.
Polymarket Vice President of Engineering Josh Stevens said the company built the new system internally using rindexer, an open-source blockchain indexing tool written in Rust. The system can begin indexing data within 0 to 10 milliseconds after a new block is broadcast.
Stevens said the improvement means trades, user positions and account balances can appear much faster on Polymarket.
Goldsky, which previously handled key parts of Polymarket’s real-time blockchain data infrastructure, will continue to serve as a backup. Polymarket will now rely mainly on its own indexing system.
Rindexer is an open-source tool designed for EVM-compatible blockchains. Developers can use YAML configuration to index blockchain events without writing additional code for basic setups. More advanced users can also build custom indexing pipelines, while the tool provides a GraphQL API for accessing indexed data.
Blockchain indexers organize raw blockchain activity into information that applications can quickly access. For Polymarket, this includes data connected to trades, positions and balances. Faster indexing reduces the delay between an event happening onchain and that information appearing on the platform.
Goldsky previously played an important role in Polymarket’s data infrastructure. Its systems provided real-time blockchain indexing and helped connect onchain activity with offchain information such as usernames and comments.
Polymarket also used these data pipelines for features such as recent activity, top holders and leaderboards. The latest change puts Polymarket’s own rindexer-based system on the primary data path while keeping Goldsky available as a backup.
The move comes as Polymarket continues expanding the technology behind its trading products.
Earlier in September, Polymarket launched perpetual futures for eligible international users across 10 initial markets covering crypto assets, equity indexes and commodities. The product allows leverage of up to 20 times, while U.S. users are excluded from the international perpetual futures service.
The initial markets included Bitcoin, Ether, Solana and Hyperliquid, along with gold, silver, oil and U.S. equity indexes. This expanded Polymarket’s products beyond the event contracts the platform is mainly known for.
Polymarket has also added other technology to its core prediction-market business. In April, the company introduced onchain monitoring through a partnership with Chainalysis to watch trading activity for possible insider trading and market manipulation.
The monitoring system uses blockchain data to examine trades, positions and settlements. By late August, Polymarket said its surveillance systems were ready for increased activity around the U.S. midterm elections, using blockchain analytics, machine learning and other tools to identify unusual activity.
The company said it had referred more than 100 cases to law enforcement, including cases involving suspected use of sensitive government information.
Polymarket has also continued expanding how users interact with the platform. In July, it enabled Bitcoin Lightning deposits through Spark, allowing users to fund their accounts through the Lightning Network without waiting for traditional Bitcoin confirmations.
The company has expanded its technology stack through acquisitions as well. In March, Polymarket acquired DeFi infrastructure startup Brahma, bringing smart-account and automated execution technology into the company.
Brahma’s technology was expected to support areas such as wallets, deposits, asset routing and the redemption of tokens linked to prediction-market outcomes. The acquisition followed Polymarket’s purchases of derivatives exchange QCEX and prediction-market data company Dome.
Growing trading activity has also increased the demands on Polymarket’s infrastructure. The platform processed around $5 billion in World Cup trading as the tournament generated heavy activity across its markets in June and July.
Goldsky has continued developing its own blockchain data products during this period. In August, it added datasets covering Polymarket positions, order fills and balances, along with average prices and realized profit-and-loss data.
Polymarket’s latest move does not remove Goldsky from its technology stack. Instead, Goldsky will remain available as a backup while Polymarket mainly operates the rindexer-powered indexing system internally.
