#28 Aggregator
Synthesis.Trade
Cross-chain prediction-market terminal with single-step Rhino deposits, supporting Polymarket and Kalshi from one wallet.
$ 9.80M 1m volume
Quick facts
- Chains
- Polygon · Solana · any chain supported by Rhino.fi Smart Deposit Addresses
- Venues
- Polymarket · Kalshi
Stats across DAY · WEEK · MONTH · ALL
From the Polymarket public data API. Updated daily.
Today · 24h
#26
$27.2k
23 active users
This week · 7d
#27
$108.6k
38 active users
This month · 30d
#30
$1.60M
123 active users
All-time · all
#28
$9.80M
717 active users
builderCode
The 32-byte hash Polymarket uses to attribute volume to this builder on-chain.
0x9857c25d1f44f0bb3ceb6fb7aa8e0f47956d3cea3b5b30b28a6314bbcd3f1f3b What is Synthesis.Trade?
Synthesis is a Trading Interface for Polymarket that lets traders access Polymarket (Polygon) and Kalshi (Solana) from a single account, removing the need to bridge funds or switch wallets between venues. Onboarding is powered by Rhino.fi Smart Deposit Addresses, so users deposit from any supported chain and land directly inside a market ready to trade. The terminal layers market discovery feeds, live news, whale-trade monitoring, watchlists, and arbitrage and correlation tooling on top of the underlying exchanges. Synthesis is co-founded and led by Riley Cook (CEO), and the platform publishes Synthesis Documentation plus an open Synthesis API, SDK, and CLI for builders. On Polymarket's builder leaderboard it sits at #30 monthly by volume with $1.60M routed from 123 monthly active users and #28 all-time at $9.80M across 717 users, giving it one of this slice's healthier user-driven volume profiles.
Synthesis is a prediction-market trading terminal that treats Polymarket and Kalshi as a single, cross-chain liquidity pool. Where most Polymarket clients lock users into one chain and one venue, Synthesis abstracts the bridging layer: a single Synthesis account is paired with a Rhino.fi Smart Deposit Address, so a deposit from any supported chain lands as funded position-ready balance inside the terminal without manual bridging, network switching, or contract interactions.
On top of execution, the product layers a discovery and intelligence stack — market-discovery feeds, live news streams, whale-trade monitoring, trader watchlists, and tooling explicitly built to identify arbitrage and correlations between Polymarket and Kalshi pricing. Synthesis has also shipped a public Synthesis API, SDK, and CLI (api.synthesis.trade/docs, docs.synthesis.trade), positioning itself as an infrastructure layer that other builders can re-use rather than a closed app.
Riley Cook is the public co-founder and CEO. Privy (the wallet-infrastructure provider used by Synthesis) has described the product on X as 'building a new kind of prediction market experience — cross-chain, multi-platform, and designed for how people actually trade today.' On the Polymarket leaderboard Synthesis is the most user-distributed builder in this slice with 123 monthly active users and 717 all-time, $1.60M of monthly routed volume and $9.80M cumulative — a healthier retail-style ratio than most builders in the same rank range.
For the polymarketbots.io directory, Synthesis is the canonical cross-venue example: a single client that abstracts Polymarket and Kalshi behind one wallet and one set of execution tools.
Key features
- Single-step onboarding via Rhino.fi Smart Deposit Addresses
- Cross-chain access to Polymarket (Polygon) and Kalshi (Solana) from one wallet
- Live market discovery feed and news stream
- Whale-trade monitoring and trader watchlists
- Arbitrage and correlation tooling across venues
- Public Synthesis API, SDK, and CLI for builders
Founders & team
- Riley CookCo-Founder, CEO
Co-founder and CEO of Synthesis; publicly attributed in third-party coverage of the Synthesis x Rhino.fi launch.
What others have written about Synthesis.Trade
- Synthesis Launches Prediction Market With Rhino — Rhino.fi
- Synthesis Price, Research, News & Fundraising — Messari
- How Prediction Markets Work — Beluga
Rank + volume over time
Daily snapshots from our scraper. Charts populate as history accumulates.
All-time rank
Lower is better. Inverted Y-axis.
All-time volume
Cumulative routed volume in USD.
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How to verify Synthesis.Trade
- On-chain attribution — every Polymarket Builder routes via an order that includes their
builderCode. The hash above is checkable on Polygon against Polymarket's CTF Exchange. - Polymarket's own verification — $Synthesis.Trade carries the official ✓ verified flag in the data API.
- Cross-check Polybot Arena — polybot.arena tracks wallet-level P&L for builder-tagged bots. If a builder claims specific performance, their wallet should be findable there.
- Tier-2 patterns to avoid — we flag builders that match the Tier-2 pattern (no public team, no verifiable claims, recurs across affiliate-SEO listicles). See our /methodology page for the full criteria.
About Synthesis.Trade 06 answers
FAQ
01 What is Synthesis.Trade?
Synthesis is a Trading Interface for Polymarket that lets traders access Polymarket (Polygon) and Kalshi (Solana) from a single account, removing the need to bridge funds or switch wallets between venues. Onboarding is powered by Rhino.fi Smart Deposit Addresses, so users deposit from any supported chain and land directly inside a market ready to trade. The terminal layers market discovery feeds, live news, whale-trade monitoring, watchlists, and arbitrage and correlation tooling on top of the underlying exchanges. Synthesis is co-founded and led by Riley Cook (CEO), and the platform publishes Synthesis Documentation plus an open Synthesis API, SDK, and CLI for builders. On Polymarket's builder leaderboard it sits at #30 monthly by volume with $1.60M routed from 123 monthly active users and #28 all-time at $9.80M across 717 users, giving it one of this slice's healthier user-driven volume profiles.
02 What is the official website of Synthesis.Trade?
Synthesis.Trade's official site is https://synthesis.trade. We verified the URL by visiting the homepage and confirming it references Polymarket or prediction markets directly. If you believe this URL is incorrect, email [email protected].
03 Is Synthesis.Trade verified by Polymarket?
Yes — Synthesis.Trade carries Polymarket's official ✓ verified flag (returned by their data API as `verified: true`). This indicates Polymarket has reviewed the builder; it's not a guarantee of product quality or financial outcomes.
04 Who founded Synthesis.Trade?
Riley Cook (Co-Founder, CEO). Sourced from the project's own materials and public profiles; we don't fabricate team identities and clearly mark builders whose team is publicly anonymous.
05 What are Synthesis.Trade's key features?
Single-step onboarding via Rhino.fi Smart Deposit Addresses; Cross-chain access to Polymarket (Polygon) and Kalshi (Solana) from one wallet; Live market discovery feed and news stream; Whale-trade monitoring and trader watchlists; Arbitrage and correlation tooling across venues; Public Synthesis API, SDK, and CLI for builders. Sourced from the official site/homepage at the time of research.
06 How does Synthesis.Trade compare to similar builders?
Synthesis.Trade is ranked #28 all-time, with similar-category peers including okbet, fireplace, swaps.xyz. The leaderboard reorders daily — see the history chart for Synthesis.Trade's rank trajectory.