PolyNode Realtime Polymarket Data API and WebSocket Feeds

PolyNode Overview

PolyNode Key features

• Preconfirmation Data Streams

  PolyNode watches the mempool and decodes Polymarket transactions. It pushes settlements and fills to your system three to five seconds before the block confirms.

• Composable WebSockets

  You connect to eight distinct stream types on a single connection. The server runs twelve filters to send the exact data your client needs.

• Enriched Trade Objects

  Every payload has the human readable market question and outcome name. Your application can render a user interface or trigger logic immediately.

• Deep Historical Archive

  The service stores over 1.2 billion fills across 2.7 million wallets. You can query this complete record of trades with ordinary SQL.

• Wallet Tracking Endpoints

  These endpoints return realtime and historical activity for any address. You get realized P&L and category breakdowns to analyze performance.

• Oracle Resolution Stream

  The API decodes UMA Optimistic Oracle events live from Polygon. Your risk systems receive an early signal when the protocol submits a dispute or proposal.

• Realtime OHLCV Data

  The system generates candle data directly from real settlement flow. You can pull six resolutions to test strategies and build charts.

• Perps Data Coverage

  The API delivers open interest and named liquidations as time series. You can also track crowd long short ratios and whale leaderboards.

PolyNode Fees

• Free plan Limited to one hour of WebSocket session time per day, one event connection, one orderbook connection, and one firehose subscription, with no REST data endpoints included.
• Starter plan $50 per month with a three-day free trial, including 1000 V3 REST requests per minute, 1000 heavy trade history requests per minute, 10 event WebSockets, 10 orderbook WebSockets, 100 firehose subscriptions, and unlimited session time.
• Growth plan $200 per month with 2000 V3 REST requests per minute, 1500 heavy requests per minute, 50 event connections, 50 orderbook connections, and 750 firehose subscriptions.
• Enterprise plan $750 per month starting at 4000 REST requests per minute with custom higher limits available, unlimited connections and subscriptions, and hands-on feature support.

How to use PolyNode

1. 1

   Create your account

   Visit polynode.dev and create an account, or generate an API key via the documented POST endpoint. Store the key immediately because the system cannot retrieve it later.

2. 2

   Test the REST API

   Send a GET request to the markets endpoint with your key in the header. Include a count parameter to retrieve the highest volume markets.

3. 3

   Open a WebSocket connection

   Connect to the documented WebSocket endpoint and pass your key as a query parameter. You can enable zlib compression to reduce bandwidth.

4. 4

   Subscribe to a stream

   Send a subscribe message that specifies your desired stream type, such as fills or settlements. Include any required server side filters in this message.

5. 5

   Process incoming JSON events

   Read the enriched JSON events and trigger your application logic without further lookups. Send a simple ping every 30 to 60 seconds if your connection runs behind a proxy.

6. 6

   Recover missed events

   Use the since filter with a recent timestamp after a disconnect to recover events within your plan lookback window. Fall back to REST endpoints for longer gaps.

7. 7

   Query historical data

   Access the SQL explorer or the documented REST history endpoints for historical analysis. You can query past fills, positions, and redemptions.

8. 8

   Scale your usage

   Add more concurrent connections or upgrade your plan when you reach your current limits. The system accounts for these limits at the account level.

PolyNode Screenshots

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PolyNode User Reviews

• 

  @simmer_markets Jun 18, 2026

  A new skill has been added to the World Cup trading skill registry. This skill copies the best World Cup traders on Polymarket for any agent. Auto-curated daily, no wallet list to pick. Free. Powered by @joinPolynode How World Cup Copytrader works 🧵

  View on X ↗
• 

  @PolycoolApp Mar 27, 2026

  PARTNERSHIP ANNOUNCEMENT @PolycoolApp × @joinPolynode We're integrating PolyNode, the fastest infrastructure for copytrading on Polymarket. For the first time: Detect trades before on-chain confirmation ~3-4 seconds ahead via mempool access Near 100% pre-confirmation coverage Land copytrades in the same block consistently This isn't just faster data. It's a different game. From reacting → to executing before the market even sees it. Data is alpha. Execution captures it. Welcome @joinPolynode

  View on X ↗
• 

  @ryan_morr Mar 31, 2026

  Was blown away with the infrastructure that polynode very excited for the future of this partnership

  View on X ↗

PolyNode FAQ

PolyNode Updates

1. 

   polynode Oct 16, 2026 · 17:00
   Priced In × PredictQ — Who Actually Wins in Prediction Markets”
   • 1 replies
   • 1 reposts
   • 6 likes
   • 343 views
2. 

   polynode Oct 9, 2026 · 16:55
   Priced In × ProphetX — The Sports Prediction Market Built for Everyone Else’s App
   • 2 replies
   • 7 reposts
   • 11 likes
   • 927 views
3. 

   polynode Oct 8, 2026 · 03:39
   Excited to chat about Agg with the legends @predicttime_ tomorrow!
   • 5 replies
   • 4 reposts
   • 24 likes
   • 644 views
4. 

   polynode Oct 5, 2026 · 18:25
   If you're looking to avoid yet another meaningful migration @joinPolynode will have full Polymarket v2 support on day 1!
   DM if you want to learn more about Polynode realtime & historical data.
   • 7 replies
   • 2 reposts
   • 25 likes
   • 634 views
5. 

   polynode Sep 30, 2026 · 13:32
   The venue gap has closed!
   Since our last order share update Agg added Pred + ProphetX and event selection + liquidity on HL 10x'd.
   Agg routes to the best venue after accounting for orderbook depth + fees so order share represents 'best selection + price'.
   • 12 replies
   • 4 reposts
   • 30 likes
   • 1.4K views
6. 

   polynode Sep 28, 2026 · 13:41
   #PoweredByPolynode
   • 2 likes
   • 187 views
7. 

   polynode Sep 18, 2026 · 13:43
   Awesome to see Polymarket investing in their DeFI product + API reliability.
   If you need enhanced parameters on your API queries like:
   - Time filtered P&L's
   - Complete historical's (v1/v2/v3) with uncapped query limits
   And our websocket still detects orders 2-3 seconds ahead of RTDS. Hit me up to learn more if you're building a serious app on Polymarket!
   • 7 replies
   • 3 reposts
   • 31 likes
   • 2.2K views
8. 

   polynode Sep 16, 2026 · 16:22
   #PoweredByPolynode
   • 1 replies
   • 10 likes
   • 400 views
9. 

   polynode Sep 16, 2026 · 16:19
   Share is now live on Hyperliquid via HIP-4, bringing Polymarket and Hyperliquid into the best mobile trading experience, and optimizing outcomes on every trade.
   Check out @share_xyz to access low fee HL markets using existing Polymarket accounts and funds.
   • 3 replies
   • 4 reposts
   • 14 likes
   • 728 views
10. 

    polynode Sep 16, 2026 · 13:47
    The Polynode explorer is now live! Our 100% accurate @Polymarket data across v1/v2/v3 is now available for builders and users:
    https://explore.polynode.dev
    • 3 likes
    • 271 views
11. 

    polynode Sep 11, 2026 · 17:00
    We are live on Priced In with @wooter_ from @terminalup:
    • 5 replies
    • 7 reposts
    • 14 likes
    • 7.1K views
12. 

    polynode Sep 10, 2026 · 13:13
    Today we’re announcing the launch of Agg's tokenization layer bringing @prophetX onto Solana.
    ProphetX is the first CFTC-regulated exchange built specifically for sports. Adding ProphetX is now a turnkey integration for builders, and available for users on Agg. 👇
    • 6 replies
    • 4 reposts
    • 28 likes
    • 19K views
13. 

    polynode Sep 4, 2026 · 17:00
    We are live with @hunterorrell from @lute on Priced In:
    • 1 replies
    • 2 reposts
    • 9 likes
    • 12.3K views
14. 

    polynode Sep 3, 2026 · 12:59
    Just in time for football season! Live sports front end + APIs are now live on @Agg_Market.
    What's cool about the project it's our first time wrapping an existing Polynode capability into Agg to make it usable across all venues.
    Links to docs below:

    
    • 6 replies
    • 2 reposts
    • 23 likes
    • 1.2K views
15. 

    polynode Sep 2, 2026 · 13:24
    #PoweredByPolynode
    • 3 likes
    • 368 views
16. 

    polynode Sep 1, 2026 · 17:29
    Self custodial wallet support is live on @Agg_Market starting with Polymarket and Hyperliquid!
    Full support across all venues/chains will follow. This is our single most requested feature in partner conversations and we're excited to support all crypto-native builders.
    • 9 replies
    • 3 reposts
    • 22 likes
    • 1.4K views
17. 

    polynode Aug 27, 2026 · 17:44
    Polymarket with leverage
    up to 10x on sports and finance markets
    powered by @dimes_fi
    live now on Polycool.
    • 61 replies
    • 21 reposts
    • 122 likes
    • 28.4K views
18. 

    polynode Aug 27, 2026 · 17:25
    Excited to support serious builders like @predictsguru who need full historical's and real time data they can trust with 100% confidence.
    If you're serious about building a best-in-class Polymarket app check out Polynode!
    • 5 replies
    • 2 reposts
    • 10 likes
    • 446 views
19. 

    polynode Aug 27, 2026 · 17:19
    Shipped a pretty big update on @predictsguru
    The change that actually matters is the data layer. Moved the API from @predexon to @joinpolynode .Predexon just stopped getting updates, and at some point you're sitting there looking at PnL you don't fully trust. Polynode looks clean so far. We'll see how it holds up.
    What changed on the site:
    Homepage isn't a search box anymore. You open it and you already get the leaderboard, open positions, live tape, hot events, and the wallets people keep looking up.
    Checker got the boring-but-important fix. Headline number is total profit now: trading PnL + LP + maker/taker rebates, minus fees. Chart sits on its own. You can plot each stream separately, so you can tell if a wallet is actually trading or just collecting rewards.
    Leaderboard is less of a volume beauty contest. Official board is still there, plus rankings by referral payouts, LP, maker rebates, taker rebates, yield. That's the useful one if you're hunting wallets that don't show up on the front page.

    
    • 1 replies
    • 1 reposts
    • 8 likes
    • 934 views
20. 

    polynode Aug 27, 2026 · 17:00
    Looking forward to having @yellowpantherx from @CrispPredict join us tomorrow on Priced In.
    Bitcoin moves, Kalshi x MLB, market picks, and more.
    See you at 1p ET / 5p UTC.

    
    • 2 replies
    • 5 reposts
    • 12 likes
    • 687 views

PolyNode Reviews & Comments

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