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KalshiCustomer feedback

A developer built an open-source smart order router for the Kalshi and Polymarket prediction markets, demonstrating an average saving of 2.3 cents per contract by optimizing order execution across...

What happened

A developer built an open-source smart order router for the Kalshi and Polymarket prediction markets, demonstrating an average saving of 2.3 cents per contract by optimizing order execution across both platforms.

Source

Extracted from these lines

  • [image] Buying 1,000 YES · Kalshi × Polymarket ... smart order router takes the cheapest levels from each

  • [comment u/BodybuilderTop3213] how do you handle resolution differences between Kalshi and Polymarket? Think that could break the routing

reddit.com/r/algotrading/comments/1wuvbqo/i_built_a_smart_order_route...Open the source

Comments on the post

3 of 13 comments
  • “Resolution risk.”

    u/jrh2064 points · Oct 1, 2026View

  • “Do you have arbitrage bots that dont just trade between polymarket and kalshi but also other prediction platoforms”

    u/Radiant-Tip58911 points · Oct 2, 2026View

  • “how do you handle resolution differences between Kalshi and Polymarket? Think that could break the routing”

    u/BodybuilderTop32131 points · Oct 1, 2026View

Extracted by Autobound

From the Signal API record
Signal
Customer feedback

What this signalsUser posts often show product pain before it reaches reviews or churn.

Subreddit
r/algotrading
Event date
Oct 2026

Companies

  • PolymarketAlso named

The full record

From the Signal API record

Numbers

Mentions
2

Details

Timing
Ongoing state
Category
Features
Link URL
i.redd.it
Virality
Somewhat high
Post kind
Image
Prominence
Core
Company's role
Vendor

Topics and mentions

Topics

  • order routing
  • liquidity
  • prediction markets
  • trading
  • api

Flair

  • Strategy

Extraction

Sentiment
Neutral
Detected
Oct 1, 2026
signal_type
reddit-company
signal_subtype
customerFeedback

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The API returns more than this page shows

This page shows a preview. The full reddit-company record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

  • linkedin_urlValue in the API
  • industriesValue in the API
  • employee_count_lowValue in the API
  • employee_count_highValue in the API
  • revenueValue in the API
  • descriptionValue in the API

Signal

  • signal_nameValue in the API
  • associationValue in the API
Show the full JSONThe record on this page and the API request

GET /v1/signals/b8745491-e7cf-5044-a863-8f45aea28810 returns this record as JSON. POST /v1/companies/enrich returns every signal for kalshi.com.

{
  "signal_id": "b8745491-e7cf-5044-a863-8f45aea28810",
  "signal_type": "reddit-company",
  "signal_subtype": "customerFeedback",
  "detected_at": "2026-10-01T09:55:00+00:00",
  "company": {
    "name": "Kalshi",
    "domain": "kalshi.com"
  },
  "data": {
    "nsfw": false,
    "stage": "none",
    "awards": 0,
    "timing": "ongoing_state",
    "topics": [
      "trading",
      "api",
      "order routing",
      "liquidity",
      "prediction markets"
    ],
    "post_id": "1wuvbqo",
    "summary": "A developer built an open-source smart order router for the Kalshi and Polymarket prediction markets, demonstrating an average saving of 2.3 cents per contract by optimizing order execution across both platforms.",
    "category": "features",
    "comments": [
      {
        "url": "https://www.reddit.com/r/algotrading/comments/1wuvbqo/comment/pd7jviw/",
        "depth": 0,
        "score": 4,
        "author": "jrh206",
        "excerpt": "Resolution risk.",
        "posted_at": "2026-10-01T13:57:29.000Z",
        "author_url": "https://www.reddit.com/user/jrh206/"
      },
      {
        "url": "https://www.reddit.com/r/algotrading/comments/1wuvbqo/comment/pdbhkhh/",
        "depth": 0,
        "score": 1,
        "author": "Radiant-Tip5891",
        "excerpt": "Do you have arbitrage bots that dont just trade between polymarket and kalshi but also other prediction platoforms",
        "posted_at": "2026-10-02T00:43:41.000Z",
        "author_url": "https://www.reddit.com/user/Radiant-Tip5891/"
      },
      {
        "url": "https://www.reddit.com/r/algotrading/comments/1wuvbqo/comment/pd6lvx7/",
        "depth": 0,
        "score": 1,
        "author": "BodybuilderTop3213",
        "excerpt": "how do you handle resolution differences between Kalshi and Polymarket? Think that could break the routing",
        "posted_at": "2026-10-01T10:46:58.000Z",
        "author_url": "https://www.reddit.com/user/BodybuilderTop3213/"
      }
    ],
    "evidence": [
      "[title] I built a smart order router for Kalshi and Polymarket, saving 2.3¢ per contract on average. Here's the source code.",
      "[image] Buying 1,000 YES · Kalshi × Polymarket ... smart order router takes the cheapest levels from each",
      "[comment u/BodybuilderTop3213] how do you handle resolution differences between Kalshi and Polymarket? Think that could break the routing"
    ],
    "link_url": "https://i.redd.it/ntxtchopvtsh1.png",
    "virality": "somewhat_high",
    "image_url": "https://i.redd.it/ntxtchopvtsh1.png",
    "post_date": "2026-10-01T09:55:00.000Z",
    "post_kind": "image",
    "sentiment": "neutral",
    "subreddit": "algotrading",
    "event_date": "2026-10",
    "post_flair": [
      "Strategy"
    ],
    "post_title": "I built a smart order router for Kalshi and Polymarket, saving 2.3¢ per contract on average. Here's the source code.",
    "prominence": "core",
    "source_url": "https://www.reddit.com/r/algotrading/comments/1wuvbqo/i_built_a_smart_order_router_for_kalshi_and/",
    "entity_role": "vendor",
    "post_author": "YukiChuuu",
    "upvote_ratio": 0.8461538461538461,
    "mention_count": 2,
    "mention_surge": false,
    "subreddit_url": "https://www.reddit.com/r/algotrading/",
    "total_upvotes": 27,
    "comments_total": 13,
    "total_comments": 13,
    "other_companies": [
      {
        "name": "Polymarket",
        "role": "alternative",
        "domain": "polymarket.us"
      }
    ],
    "post_author_url": "https://www.reddit.com/user/YukiChuuu/",
    "signal_category": "feedback",
    "comments_included": 3
  }
}

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