Trading Terminals Arbitrage Prediction Markets

Predictefy

Predictefy pulls live prices and order books from Polymarket, Kalshi, and other venues into one dashboard.

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Predictefy: Multi Venue Prediction Market Terminal and Arbitrage Tool

What is Predictefy?

Predictefy is a non-custodial prediction market terminal that lets Polymarket, Kalshi, and other traders compare prices, spot arbitrage, and place orders from one dashboard.

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Predictefy Overview

Predictefy is a data and trading terminal built for people who trade on prediction markets. It does not run its own markets or contracts. Instead, it pulls live prices, liquidity, order books, and volume from platforms like Polymarket, Kalshi, Hyperliquid, Limitless, and others, then lines them up in one screen. You get one place to check odds, compare markets, and place trades instead of ten browser tabs.

This tool is for traders who already split their capital across more than one platform. If you only ever use Polymarket and never check prices anywhere else, Predictefy will not change much for you. But if you want the best price on an election, sports, or crypto market and hate manually comparing spreads, this is built for that exact job. Market makers use it to spot cross-venue gaps. Developers use it to build bots and trading agents on top of the same feed through the API, SDK, and MCP server.

The core of Predictefy is market matching. It finds the same event listed across different platforms and shows side-by-side prices, implied probability, and available size. A live arbitrage feed flags price gaps between matched markets and shows if the spread is big enough to cover fees. When you find a trade you like, you place the order right inside Predictefy, and the system routes it to whichever venue has the better price and depth. For Kalshi trades, you connect your own API key, and the signing happens in your browser, so the platform never holds your credentials. A portfolio view then tracks your open positions and balances across every connected venue in one dashboard.

What sets Predictefy apart is the mix of live routing and historical depth. Most terminals give you a live feed or historical data, not both. Predictefy has multi-year OHLCV data going back to 2020 for research and backtesting, alongside the live arbitrage tools for active trading. It charges no platform fees of its own, so you only pay what the destination venue charges. Add in the developer tooling for building agents and bots, and it works as much as market infrastructure as it does a trading app.

Predictefy Key features

  • Cross Venue Market Comparison

    Predictefy matches the same event across different platforms and shows prices, probabilities, and liquidity side by side. Traders no longer need to check odds format by format on each site.

  • Real Time Arbitrage Detection

    A live feed tracks price gaps between matched markets and shows the spread size and liquidity on each side. Traders can quickly check if a gap covers fees and slippage before acting.

  • Unified Trading and Routing

    Users place orders directly inside Predictefy, and the system routes each order to the venue with the better price and liquidity. Kalshi orders use a locally signed API key and RSA key, so Predictefy never holds private keys.

  • Market Analytics Dashboards

    Dashboards show 24 hour volume, trending contracts, and top movers across venues. Users can filter by category or volume to find opportunities faster than browsing each platform alone.

  • Historical OHLCV Data

    Predictefy stores multi year open, high, low, close, and volume data for research and back testing. Traders can test a strategy before they risk real capital.

  • Unified Portfolio View

    Balances, open orders, and positions from every connected venue appear on one screen. This helps traders avoid missing an open position when their capital sits across multiple platforms.

  • Developer SDK and MCP Server

    Developers install the SDK through npm and use the MCP server to let AI agents query markets, spot arbitrage, and place orders under set limits. Full API access is currently open through private beta.

  • Customizable Trade Layout

    Traders can rearrange trade panels, order books, and data columns to match their own workflow. Each user sets up the interface the way they actually trade.

Predictefy Fees

  • Platform trading fee Predictefy charges zero platform fees on trades executed across its supported venues.
  • Destination venue fees Users still pay each venue's own fees, such as Polymarket's category dependent taker fees or Kalshi's contract based schedule.
  • Gas costs Gas can be sponsored on several connected venues, so end users pay zero gas on those routes.
  • Subscription cost No subscription fee is currently required for the core trading interface, though advanced API access may involve waitlist or enterprise arrangements.

How to use Predictefy

  1. Create your account

    Go to predictefy.com and sign up, or log in with a wallet through the Privy login system.

  2. Browse markets and arbitrage

    Open the markets or arbitrage section to see live contracts and matched events across platforms.

  3. Connect your Kalshi keys

    If you want to trade on Kalshi, go to Settings and enter your Kalshi API key and RSA private key. All signing happens locally in your browser.

  4. Compare prices across venues

    Pick a market and check the side by side prices, probabilities, and liquidity from each connected platform.

  5. Place your trade

    Use the unified trade panel to send your order. Predictefy routes it to the venue with the better price and liquidity.

  6. Track your portfolio

    Check the portfolio dashboard to see your open positions, balances, and exposure across all connected venues in one place.

  7. Request developer access

    If you want the API or SDK, join the waitlist or book a call through the team calendar link on the site.

Predictefy Screenshots

Predictefy Review

Our verdict

Predictefy earns its place for one clear reason: it fixes the pain of trading prediction markets across many platforms at once. Instead of juggling tabs between Polymarket, Kalshi, Hyperliquid, and others, you get one screen with matched prices, live arbitrage gaps, and order routing that stays non custodial since your keys never leave your browser. The zero platform fee policy and the SDK/MCP tools for developers add real weight, and the historical OHLCV data going back to 2020 makes it useful for research too. It falls short in a few places: the team is small, full API access sits behind a waitlist, and there is no mobile app yet, so bugs and slow support are fair trade-offs for an early product. If you already split capital across two or more venues, or you build trading bots and need clean normalized feeds, Predictefy saves real time and effort. If you only trade on one platform and never compare prices, you will not get much from it.

Is Predictefy safe & legit?

Predictefy is built by a small, bootstrapped team led by co-founder Tafcir Majumder, who has past work at Token Metrics, Genzio, and Betu. It has earned some trust in the space through a grant from Superteam Malaysia and data mentions in Business Insider and Messari Solana reports. The tool is non-custodial, meaning your private keys and API credentials never leave your device, and no major red flags exist beyond the usual caution of using a newer platform, so start with small amounts and double check the site URL before you log in.

X account intel @Predictefy

  • Based in Southeast Asia
  • Joined X October 2025 9 months ago
  • Username changes 1 rename last on Oct 31, 2025
  • Signup source Web

Public profile signals from X. Use as one input alongside other due-diligence.

Wallet blacklist scan checked Aug 16, 2026

  • MetaMask Not flagged
  • Phantom Not flagged
  • ScamSniffer Not flagged
  • EtherAddressLookup Not flagged
  • Keplr Wallet Not flagged

Domain predictefy.com checked against public crypto wallet blacklists.

Predictefy FAQ

What is Predictefy?
Predictefy is a terminal that pulls live prices, liquidity, and order books from platforms like Polymarket, Kalshi, and Hyperliquid into one screen. It does not host its own markets. Instead it lets you compare odds across venues and place trades without switching tabs.
Does Predictefy hold my funds or private keys?
No. Predictefy is non custodial, so your keys and API credentials stay on your device. For Kalshi trades, your RSA private key signs requests locally in the browser and never reaches Predictefy's servers.
How does the arbitrage detection work?
The platform matches the same event across different venues and streams live price gaps between them. Each alert shows the spread size and the liquidity available on both sides, so you can check if the gap covers fees before you trade.
Are there fees to use Predictefy?
Predictefy does not charge its own trading fees. You still pay whatever fee the destination venue charges, such as Polymarket's taker fee or Kalshi's contract fee, and some connected venues offer sponsored gas for deposits and withdrawals.
Can developers build on top of Predictefy's data?
Yes. Predictefy offers an API, an SDK you can install through npm, and an MCP server so AI agents can query markets, spot arbitrage, and place orders under set limits. Full API access is currently gated behind a private beta or waitlist.

Predictefy Updates

  1. Predictefy logo
    Predictefy
    Prediction market notional volume surged during the World Cup, and average weekly volume is still 50.1% higher than before the tournament began.
    Pre vs. Post-World Cup Notional Volume:
    1, @HyperliquidX +328.4%
    2, @Kalshi +96.1%
    3, @Polymarket (US) +87.2%
    4. @opinionlabsxyz +17.0%
    5. @MyriadMarkets -10.6%
    6. @Polymarket -46.2%
    7. @predictdotfun -63.2%
    8. @trylimitless -88.9%
    Hyperliquid recorded the largest post-World Cup expansion, with average weekly notional volume up 328.4% from its pre-tournament baseline.
    Across leading venues, average weekly notional volume rose from $7.03B pre-World Cup to a peak of $16.03B during the tournament, and remains at $10.55B post-World Cup.
    The World Cup spike has cooled, but prediction market activity has not returned to its previous baseline.
    Behind Hyperliquid, Kalshi and Polymarket US retained the strongest gains, up 96.1% and 87.2% respectively.
    The World Cup wasn’t just a temporary volume spike.
    It appears to have left prediction markets operating at a materially higher level than before.
    To measure the World Cup effect, we compared average weekly notional volume across leading venues in the month before kickoff with the averages during and after the tournament.
    2 more in this thread
    Prediction market notional volume more than doubled during the World Cup, reaching $16.03B in a single week at the tournament peak.
    World Cup Peak Weekly Notional Volume:
    1. @Kalshi - $9.80B
    2.@Polymarket - $3.50B
    3. @Polymarket (US) - $1.15B
    4. @predictdotfun - $550M
    5. @trylimitless - $550M
    6. @opinionlabsxyz - $340M
    7. @HyperliquidX - $135.46M
    8. @MyriadMarkets - $315K
    At its peak, weekly notional volume was roughly 128% above the $7.03B pre-World Cup average.
    Kalshi alone reached $9.8B, while Polymarket and Polymarket US combined generated another $4.65B
    The World Cup became one of the clearest volume catalysts prediction markets have seen.
    Source: http://predictefy.com
    Across leading prediction market venues, average weekly notional volume remains at $10.55B post-World Cup, 50.1% above pre-tournament levels.
    Post-World Cup Weekly Notional Volume:
    1. @Kalshi - $8.41B
    2. @Polymarket - $860M
    3. @Polymarket (US) - $820M
    4. @HyperliquidX - $183.49M
    5. @opinionlabsxyz - $180M
    6. @predictdotfun - $70M
    7. @trylimitless - $30M
    8. @MyriadMarkets - $1.10M
    The World Cup spike has cooled, but prediction market activity has not returned to its previous baseline.
    Hyperliquid stands out as the biggest post-tournament mover, with average weekly notional volume now 328.4% above its pre-World Cup level.
    The tournament appears to have left prediction markets operating at a materially higher volume baseline than before.
    Source: http://predictefy.com
    • 4 replies
    • 6 reposts
    • 58 likes
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  2. Predictefy logo
    Predictefy
    • 5 replies
    • 1 reposts
    • 37 likes
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  3. Predictefy logo
    Predictefy
    Leading prediction markets generated $110.35 billion in notional volume in Q2 2026, marking a 44.8% increase from Q1.
    QoQ Notional Volume Growth:
    1. @Polymarket (US) +463.3%
    2. @trylimitless +252.9%
    3. @Kalshi +102.8%
    4. @predictdotfun +89.4%
    5. @gemini +86.1%
    6. @SX_Bet +43.3%
    7. @Polymarket +2.3%
    8. @cryptocom -32.4%
    9. @opinionlabsxyz -80.7%
    10. @MyriadMarkets -93.8%
    Polymarket US, the CFTC-regulated arm of Polymarket, led the market in Q2 with 463.3% quarter-over-quarter growth.
    Limitless followed with 252.9% growth, reinforcing its position as one of the fastest-expanding prediction market venues.
    PredictDotFun and Gemini remained closely matched, each recording approximately 86%–89% QoQ growth.
    At the other end of the market, BSC-based venues Opinion and Myriad experienced sharp contractions, declining 80.7% and 93.8%, respectively, alongside a meaningful loss of market share.
    2 more in this thread
    Kalshi led the prediction market sector in Q1 with $32.41B in notional volume, followed by Polymarket at $26.17B
    Q1 Notional Volume:
    1. @Kalshi - $32.41B
    2. @Polymarket - $26.17B
    3. @opinionlabsxyz - $11.68B
    4. @predictdotfun - $1.69B
    5. @cryptocom - $1.48B
    6. @Polymarket (US) - $1.25B
    7. @trylimitless - $1.12B
    8. @SX_Bet - $178.25M
    9. @MyriadMarkets - $139.40M
    Opinion ranked third with $11.68B, creating a significant gap between the market’s three largest venues and the rest of the sector.
    Among the mid-sized platforms, 'PredictDotFun' and 'Cryptocom' generated $1.69B and $1.48B, respectively. Polymarket US and Limitless followed closely, each surpassing $1B in quarterly volume.
    Further down the rankings, SX Bet recorded $178.25M, while Myriad generated $139.40M
    Source: https://predictefy.com/analytics
    Kalshi strengthened its position as the market leader in Q2, generating $65.72B in notional volume—more than double its Q1 total.
    Q2 Notional Volume
    1. @Kalshi - $65.72B
    2. @Polymarket - $26.79B
    3. @Polymarket (US) - $7.02B
    4. @trylimitless - $3.94B
    5. @predictdotfun - $3.19B
    6. @opinionlabsxyz - $2.25B
    7. @cryptocom - $1.00B
    8. @SX_Bet - $255.49M
    9. @gemini - $172.24M
    10. @MyriadMarkets - $8.67M
    Polymarket remained firmly in second place with $26.79B, while Polymarket US climbed to third with $7.02B, reflecting one of the strongest quarterly expansions across the sector.
    Limitless and PredictDotFun followed with $3.94B and $3.19B, respectively, establishing themselves among the leading growth-stage venues.
    Further down the rankings, Opinion recorded $2.25B, while Cryptocom generated $1.00B
    Myriad closed the quarter with $8.67M, representing the sharpest contraction among the major venues tracked.
    Source: https://predictefy.com/analytics
    • 35 replies
    • 26 reposts
    • 185 likes
    • 36.1K views
  4. Predictefy logo
    Predictefy
    Prediction markets just hit a new all-time high in monthly notional volume, with Kalshi driving the surge and dominating the market in July.
    July Notional Volume:
    1. @Kalshi - $41.05B
    2. @Polymarket - $12.75B
    3. @RotheraMarkets - $1.12B
    4. @opinionlabsxyz - $879.12M
    5. @predictdotfun - $742.49M
    6. @cryptocom - $737.51M
    7. @InsightXHQ - $547.84M
    8. @HyperliquidX - $272.48
    9. @Predictstreet - $245.51m
    10. @trylimitless - $243.98M
    Kalshi generated more than $29B more in notional volume than Polymarket, and now accounts for more volume than every other prediction market combined.
    Meanwhile, Hyperliquid’s HIP-4 prediction markets have overtaken Limitless, while Predict Street, the official FIFA World Cup prediction market partner, has entered the rankings ahead of Limitless.
    Note: Polymarket’s volume includes Polymarket US and excludes parlays.
    • 27 replies
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  5. Predictefy logo
    Predictefy
    You can now connect Kalshi off-chain accounts to Predictefy.
    Access and trade across all Kalshi markets using Kalshi’s available liquidity, directly through Predictefy.
    Trade responsibly.
    1 more in this thread
    Connect your Kalshi account:
    1. Open Settings
    2. Enter your Kalshi API key
    3. Add your Kalshi RSA private key
    Disclaimer: Predictefy is fully non-custodial. All requests are signed locally in your browser and then relayed by Predictefy.
    • 6 replies
    • 1 reposts
    • 52 likes
    • 2.6K views
  6. Predictefy logo
    Predictefy
    If you’re into prediction markets or want to learn how to arbitrage them, you need to watch this conversation with @Predictefy.
    00:33 - Origin of Predictefy
    04:18 - Platform Demo
    09:43 - Cross-Platform Swaps
    10:38 - Ownership of Positions
    12:56 - Analytics
    15:30 - Top Traders
    18:25 - Top Strategies
    23:18 - Multiple Odds Formats
    24:10 - Notifications
    24:28 - Contests
    25:27 - What’s next for Predictefy?
    27:48 - Team
    Especially excited for their upcoming API & SDK!
    • 6 replies
    • 5 reposts
    • 22 likes
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  7. Predictefy logo
    Predictefy
    Some of the prediction market bots we’ve been building using our API/SDK are unreal
    - Arbitrage bots operating across 14 venues
    - Market-making bots with advanced parameters
    - Backtesting tools that let us test strategies before deploying capital
    - Live sports and esports arbitrage bots
    We’ve said this before, but we genuinely believe the next billion traders will be agents, not humans, and everything we’re building continues to strengthen that conviction
    We’ve already laid the groundwork, built the infrastructure and tested these bots internally
    Now we’re starting to deploy real capital
    Backtested results are one thing, but the next step is proving these strategies in live markets
    If you want access, shoot over a dm 🫡
    • 4 replies
    • 2 reposts
    • 19 likes
    • 1.6K views
  8. Predictefy logo
    Predictefy
    Looking for private beta testers for Predictefy API/SDK
    If you want a shot to test, follow, reply, and look out for a dm!
    Early testers will be rewarded…
    • 27 replies
    • 5 reposts
    • 66 likes
    • 3.9K views
  9. Predictefy logo
    Predictefy
    We’re excited to partner with @MalaysiaBCW for Malaysia Blockchain Week.
    📍 World Trade Centre, KL
    ⏰ July 29–30
    Come meet the Predictefy team, and talk prediction markets, and the future of event-driven markets.
    • 10 replies
    • 3 reposts
    • 32 likes
    • 2.7K views
  10. Predictefy logo
    Predictefy
    Rain Prediction Markets are live on Predictefy.
    Discover, trade, and arbitrage Rain across other leading venues.
    Trade responsibly.
    • 11 replies
    • 5 reposts
    • 60 likes
    • 3.9K views
  11. Predictefy logo
    Predictefy
    $100 on Argentina to beat Spain in the World Cup Final.
    Payouts on prediction markets vs sportsbooks:
    1. @SX_Bet - $381
    2. @predofficial - $379
    3. @Novig - $377
    4. @bet_105 - $374
    5. @Betfair - $371
    6. @FanDuel - $370
    7. @Duelbits - $365
    8. @DraftKings - $360
    9. @Bet365 - $360
    10. @Polymarket - $360
    11. @trylimitless - $358
    12 @Stake - $355
    13. @Kalshi - $351
    14. @Underdog - $344
    Prediction markets currently offer the best Argentina moneyline odds, led by SX Bet. Among sportsbooks, Bet105 leads the list.
    • 16 replies
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  12. Predictefy logo
    Predictefy
    $100 on England to beat France in the World Cup.
    Payouts on prediction markets vs sportsbooks:
    1. @SX_Bet - $415
    2. @Novig - $408
    3. @HyperliquidX - $406
    4. @predofficial - $400
    5. @bet_105 - $397
    6. @ProphetX - $394
    7. @FanDuel - $390
    8. @Polymarket - $385
    9. @trylimitless - $383
    10. @Bet365 - $380
    11. @Kalshi - $379
    12. @Duelbits - $375
    13. @Stake - $375
    14. @DraftKings - $375
    15. @Underdog - $370
    Prediction markets currently offer the best England moneyline odds, led by SX Bet. Among sportsbooks, Bet105 lead the list.
    • 6 replies
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  13. Predictefy logo
    Predictefy
    Kalshi dominates prediction market notional volume, leading Polymarket by more than $5.4 billion.
    Weekly Notional Volume:
    1. @Kalshi - $8,969,947,898
    2. @Polymarket - $3,475,721,078
    3. @predictdotfun - $211,866,697
    4. @opinionlabsxyz - $211,392,733
    5. @cryptocom - $179,989,782
    6. @InsightXHQ - $136.34m
    7. @HyperliquidX - $74,640,000
    8. @trylimitless - $64,959,034
    9. @SX_Bet - $42,119,892
    10. @xomarket - $18,742,045
    11. @Predictstreet - $12,587,051
    12. @Overtime_io - $1.507,493
    13. @alphaarcade - $753,628
    14. @predofficial - $641,789
    Prediction markets are entering a major expansion phase, with more platforms competing for volume across sports, crypto, politics and global events.
    InsightX, still an early-stage prediction market, nearly doubled its weekly notional volume from $70 million to $136.4 million in just one week.
    Meanwhile, Hyperliquid’s HIP-4 prediction markets have overtaken Limitless, generating nearly $10 million more in weekly notional volume.
    Note: Polymarket volume includes Polymarket US.
    • 9 replies
    • 5 reposts
    • 60 likes
    • 5.3K views

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