Agg
Agg compares prediction markets across venues and routes each trade to the best available price.
Agg market: Polymarket and Kalshi aggregator with smart order routing
What is Agg?
Agg is a prediction market aggregator where traders compare Polymarket and Kalshi odds and use smart order routing to trade across venues.
Ready to try Agg?
Open the official site and get started in a few clicks.
Agg Overview
Agg is a prediction market aggregator for traders who compare odds across Polymarket, Kalshi and other venues. You can compare prices and place trades in one interface, without opening a separate tab for each market.
Choose an outcome, enter your trade amount and review the quote before you confirm. With smart order routing, you can split one order across several venues based on price and available liquidity. That is the main difference: you can trade across venues through Agg, rather than use it only for price comparison. Check settlement rules before you accept a split, since similar contracts can resolve differently.
Sports traders can compare lines across venues, while arbitrage traders can check cross-venue price gaps. Developers can use Agg Build to add prediction markets to their apps through an API or ready-made components, without a separate integration for each venue.
Agg Key features
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Smart order routing
You can compare prices and available liquidity across supported venues, then place a trade in one click. With Agg's router, you can split an order across venues for a better fill and review the split and fees before you confirm.
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Matched market comparison
You can compare contracts for the same event across venues such as Polymarket and Kalshi. Look for the matched or stricter verified label, plus the number of venue matches for each event.
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Settlement rule details
You can check differences in resolution sources and settlement timing across matched markets. Read these before a split order, since contracts for the same event can have different payout rules.
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Arbitrage price feed
You can browse live price gaps across venues, ranked from largest to smallest, and trade from the feed. Check the settlement rules before treating a gap as an arbitrage opportunity.
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Sports odds comparison
Sports traders can compare moneylines and spreads across venues on one screen. You can also check totals and live markets during a game.
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Flexible order types
You can place market orders through the router or set limit orders on supported venues. You can also send an order directly to a venue you choose.
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Market discovery filters
You can browse by topic or filter by venue, with a separate view for matched events. Sort markets by 24-hour volume or how soon they end.
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Custody choices
You can use the default managed balance, where Agg signs trades for you, or sign with your own wallet on supported venues. For Kalshi, connect your account with an API key and keep your cash at Kalshi.
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Developer integration tools
Developers can add prediction markets to their apps through the Agg Build API or TypeScript SDK. React hooks and drop-in components are also available, though the docs remain marked alpha.
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Paper trading tests
Developers can test trades against live market data before they go live. They can also set partner fees and check estimated earnings with the earnings calculator.
Agg Fees
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Consumer fees Agg's team advertises zero added fees on the consumer site.
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Other trade costs Users still pay applicable venue fees, builder fees, bridge fees and gas, with about $1.25 budgeted for Hyperliquid's one-time account activation.
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Partner pricing Partners pay no setup or recurring fees and set their own fee on top; Agg keeps 20 percent of that fee, with volume discounts.
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Sell fees Partners charge no partner fee on sells unless they set a sell rate.
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Campaign discount During the Extra Time campaign from 11 June to 19 July 2026, traders could get a free soulbound token for a 50 percent fee discount.
How to use Agg
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Check your eligibility
Read Agg's location restrictions before you deposit and check that you can use your chosen venue. Do not use a VPN to bypass the country check.
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Sign in to Agg
Sign in with email or one of the supported account options, such as Google. In the default managed mode, Agg creates deposit wallets and signs trades for you.
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Connect Kalshi if needed
If you want to trade on Kalshi, paste your own Kalshi API key into your Agg profile. Keep funds for those trades in your Kalshi account.
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Fund your balance
Open the deposit screen and send USDC on a chain listed there, or buy through the card onramp. Start with a small deposit so you can test a withdrawal before committing more.
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Find a market
Browse Trending or choose a category, then switch to Matched to see events listed on several venues. Compare the venue price chips and open the market you want to trade.
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Check settlement rules
Read each venue's resolution rules for your chosen event, especially the resolution source and timing. Check these yourself even when you see a matched label, since venues may settle similar contracts differently.
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Review your trade
Pick an outcome and enter your trade amount. Review the quote's venue split and fees, and check any warnings before you commit.
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Confirm your order
Confirm the trade, then track the order until it is final. With the default managed balance, you do not need to approve wallet pop-ups.
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Claim and withdraw
After the market resolves, claim any winnings and request a withdrawal. Check the destination address and network before you confirm.
Agg Demo video
Agg Screenshots
Agg User Reviews
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Agg Build is one of the most complete attempts at that so far. This is where Agg is strongest. Your users can sign in with Google, Apple, X, email or a wallet. They never open a venue account or pick a chain.
View on X ↗ -
Another banger episode! No surprise to see @ProphetX showing up frequently as the best price on @Agg_Market
View on X ↗ -
Could you withdraw me my USDC? I placed a bet through you via Pred route, I won, but now you won't let me withdraw USDC
View on X ↗
Agg Review
Pros
- You can compare prices for the same event across eight venues in one place.
- You can split one order across venues for a better fill.
- You can review the venue split and fees before you confirm a trade.
- Sports traders can compare moneylines and spreads across venues on one screen.
- You can place limit orders on all supported venues.
- You can connect your Kalshi account and keep your cash at Kalshi.
- Developers can test trades on live data with paper trading before they go live.
Cons
- Users in the US, UK, France, Singapore, and several other countries cannot trade on the platform.
- Managed custody requires users to trust Agg with deposit wallets and trade signing.
- No public smart contract audit was found, and the developer docs still carry an alpha warning.
- Users reported delayed withdrawals and failed Solana deposits.
- A test quote split an order across venues with different settlement rules without a warning.
- The consumer site has no dedicated iOS or Android app.
- Reported volume figures come from the team and vary between sources.
Our verdict
I'd put Agg on the shortlist for traders who compare odds across venues: you can compare prices and split an order across venues for a better fill without juggling separate tabs. Developers can also use Agg Build to add prediction markets to an app without connecting each venue themselves. My hesitation is trust: in the default managed mode, you rely on Agg to sign trades, and users have reported withdrawal delays. You also need to check settlement rules on split orders, since matched contracts can resolve differently and you may not get a warning in the quote. It's a good fit for experienced traders in supported countries, but I'd start with a small deposit and test a withdrawal before committing more money.
Is Agg safe & legit?
Snag Solutions, Inc., led by public founder Zach Heerwagen, built Agg, so there is a named company behind it, but broad trust in the Polymarket community is not yet established. Safety concerns include reported withdrawal delays and unclear terms for managed custody; no public security audit was found. Traders also risk split orders across markets with different settlement rules, so check each contract and test a small withdrawal before depositing more.
X account intel @Agg_Market
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Based in United States
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Joined X March 2026 7 months ago
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Username changes 1 rename last on Mar 18, 2026
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Signup source Web
Public profile signals from X. Use as one input alongside other due-diligence.
Security scan checked Nov 4, 2026
- Google Web Risk Not flagged
- MetaMask Not flagged
- Phantom Not flagged
- ScamSniffer Not flagged
- EtherAddressLookup Not flagged
- Keplr Wallet Not flagged
Domain agg.market checked against Google's lists of unsafe sites and public crypto wallet blacklists.
This is an automated check, not a security audit. The summary is drafted from the project's own pages and public posts, and the domain is looked up on public blocklists. Nothing here is financial advice: only put in money you can afford to lose. How we review listings
Agg FAQ
What is agg market?
Does Agg charge trading fees?
Can I use Agg in the United States?
Who controls my funds on Agg?
What should I check before placing a split order?
Agg Updates
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One click. Best price. Every venue.- 1 reposts
- 3 likes
- 95 views
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Onto the superfinal!
- 5 replies
- 1 reposts
- 22 likes
- 621 views
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dropping prediction market alpha with @Agg_Market
- 1 reposts
- 15 likes
- 689 views
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Had a blast at today's pitch competition and thank you to the judges for passing us to the SuperFinal!
- 1 replies
- 1 reposts
- 6 likes
- 195 views
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We are live with @morganlai from @arespro on Priced In:
- 3 replies
- 3 reposts
- 12 likes
- 12.9K views
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yooo check this out if you trade sports market
top 50 on the leaderboard will get rewarded, with $50 as the minmum prize and $1,000 going to the winner.
you’ve got from now till december 1- 1 replies
- 1 reposts
- 14 likes
- 499 views
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The @predoffcial x Aggtrading campaign just kicked off.
$5,000 prize pool. Top 50 on the leaderboard get paid with all winners getting at least $50 and top prize taking home $1k.
Runs through 12/1.
2 more in this thread
2/
You don’t need to be a whale.
The minimum trade is $10, and a couple of trades can still get you into the top 20.
If you trade daily, the top 5 spots are still wide open.3/
Trade Pred markets on https://agg.market. Best price, every venue, one destination.- 10 replies
- 7 reposts
- 35 likes
- 3.3K views
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2/
You don’t need to be a whale.
The minimum trade is $10, and a couple of trades can still get you into the top 20.
If you trade daily, the top 5 spots are still wide open.1 more in this thread
3/
Pred is the best venue for sports trading.
Trade Pred markets on https://agg.market. Best price, every venue, one destination.- 1 replies
- 31 views
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Excited to join PredictTime's PitchDay next week! Tune in to learn more about why Agg is scaling >1,000% a quarter.
- 17 replies
- 2 reposts
- 35 likes
- 594 views
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Excited to join PredictTime's PitchDay next week! Tune in to learn more about Agg and hear from our founder.
- 2 reposts
- 7 likes
- 415 views
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Tomorrow Priced In returns and we are welcoming @morganlai from @arespro.
We'll be chatting social trading, NBA action, and making the freshest picks for the week.
Tune in at 1p ET / 5p UTC.
- 1 replies
- 1 reposts
- 5 likes
- 295 views
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*Leaderboard closes 12/1
- 11 views
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Trade Pred markets on https://agg.market. Best price, every venue, one place.
Leaderboard closes 11/1.- 1 replies
- 1 reposts
- 3 likes
- 76 views
Agg Reviews & Comments
No reviews yet. Be the first to share your experience.
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Open the official site and get started in a few clicks.
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