Synthesis

Synthesis is an advanced prediction market trading interface that aggregates Kalshi and Polymarket, the two dominant prediction market venues by volume, into a single unified platform. Launched in December 2025, it positions itself as the most sophisticated front-end available for event-based trading, offering discovery tools, data aggregation, social trading features, and a developer API under the tagline Trade the moment. Rather than operating its own prediction market protocol, Synthesis is a trading terminal and interface layer built on top of existing regulated and decentralized venues. It connects to Kalshi, which has tokenized its event contracts on Solana and made them tradeable through on-chain liquidity providers including Jupiter, and to Polymarket, which operates on Polygon. Through a single account and wallet, traders can access markets from both platforms without managing separate accounts, bridging assets, or switching between interfaces. The Solana connection runs through Kalshi tokenization infrastructure. Kalshi converts its regulated event contracts into on-chain assets settled via Solana, using protocols like DFlow and Jupiter to provide order routing and liquidity. Synthesis serves as a high-feature trading terminal for these tokenized Kalshi markets alongside Polymarket decentralized markets, giving Solana-adjacent traders a familiar and capable interface for prediction market exposure. For market discovery, Synthesis provides personalized recommendations and custom feeds, including a For You feed that surfaces markets aligned with a trader interests, past activity, and areas of expertise. Users can browse markets by topic, search for specific events, and follow curated feeds from other traders and market-watchers. The platform aggregates live event data, news feeds, and cross-market correlations to give traders context for their positions, helping them see how related events are priced, identify leading indicators, and spot moments where markets may be mispricing the probability of outcomes. Arbitrage detection surfaces pricing discrepancies between Kalshi and Polymarket when the same or closely related events trade on both platforms. Because Kalshi operates as a regulated U.S. exchange and Polymarket operates as a decentralized global market, price divergences can arise. The copytrade feature allows users to automatically mirror the trades of any wallet address active on Polymarket, with configurable position sizing as a fixed amount, a percentage of portfolio, or within a defined range. The feature also supports inverting a wallet trades, betting against a tracked wallet rather than following it. This opens up strategies for users who prefer to fade traders with poor historical accuracy. Trader monitoring gives users leaderboards and watchlists for top traders and large-volume wallets, tracking whale activity and position changes in real time. A social layer designed around information sharing lets users post market takes, share analysis, and engage with a community of event traders, with a rewards mechanism compensating users for sharing high-quality information. For onboarding, Synthesis integrates Rhino.fi Smart Deposit Addresses, allowing users to fund their wallet from any of eight supported networks including Polygon, BSC, Ethereum, Solana, Tron, Optimism, Arbitrum, and Base by sending USDC, USDC.e, or USDT to a unified deposit address. Rhino handles all bridging and routing automatically in the background so users do not need to manually bridge funds or switch networks. Deposits typically arrive within one to five minutes. Wallet security is managed through Privy, an embedded wallet provider that handles key storage and account recovery without requiring users to manage seed phrases. In early 2026, Synthesis launched an API, SDK, and CLI allowing developers to build on prediction market infrastructure, with a unified endpoint layer covering both Kalshi and Polymarket for order placement, balance management, and real-time market data via WebSocket streams. Authentication supports project-level API keys for backend integrations, session tokens for frontend applications, and account-level API keys for user-facing tools. Synthesis operates a points-based rewards program where points accumulate from trading volume and from referring new users. Points are tracked in a portfolio dashboard and credited automatically, with additional earning mechanisms and reward types planned. No native token or specific redemption mechanism has been publicly announced. Prediction markets emerged as one of the fastest-growing crypto categories in 2025, with Kalshi and Polymarket together processing billions in monthly volume. Kalshi tokenization on Solana, leveraging Solana throughput and Jupiter liquidity aggregation, brought regulated event contracts into the on-chain ecosystem, and Synthesis captures this moment by building a sophisticated front-end for those markets. For Solana users familiar with decentralized trading interfaces, Synthesis offers deep market data, social context, copy-trading, and arbitrage tools applied to event-based markets rather than token pairs. Synthesis is active as of mid-2026, with recent social commentary covering major events. No public security audit has been disclosed for the Synthesis interface; it relies on Kalshi, Polymarket, Privy for wallets, and Rhino.fi for bridging. The team has not disclosed external funding, a founding team roster, or a public roadmap beyond shipped features.