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About

Codex is an API for enriched blockchain and prediction market data. For tokens, it covers real-time pricing, charts, holders, balances, and aggregated analytics for 80M+ tokens and 700M+ wallets across 80+ networks (EVM chains and Solana), with sub-second freshness, historical USD pricing, and WebSocket and webhook subscriptions. Codex also provides prediction market data across Polymarket and Kalshi through a single schema. This includes events, markets, traders, holdings, live order books, and trade feeds, along with time-windowed stats and ranking signals (volume, liquidity, open interest, trade count, and unique traders) at 5m through 1w windows that the venue APIs do not expose natively. Codex is a GraphQL API that most teams query directly, with an optional TypeScript SDK. There is also an MCP server for reading the documentation. Codex offers a free tier (10,000 requests/month), usage-based Growth pricing, and Enterprise plans. Developers use it to build trading platforms.

About

Kalshi is a federally regulated derivatives exchange built for quants. Kalshi’s markets are volatile and settle daily, which means even a small edge can be extremely profitable. Trading is fully-cash collateralized, so you can never lose more than you put into a trade, and contracts can be purchased for as little as $0.01. Kalshi supports trading through its native app (iOS & Android), website, and API. The latter features extensive documentation, open-sources sample code, and live technical support. Getting started with an algorithmic strategy is as easy as `pip3 install kalshi_python`. The following data is available for free on both the website and API: * Historical spreads: Use past pricing data to set up back-tests within minutes. * Low-latency broadcasts: Receive live updates of market price movements and trade executions. * Economic projections: Build strategies using Kalshi’s proprietary forecasting tools.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Supported
iPad Supported
Android Supported
Chromebook Not Supported

Audience

Financial apps integrating cryptocurrency and prediction market trading.

Audience

Traders, algotraders, commodity traders, stock traders, options traders

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$350/month
Free Version Supported
Free Trial Not Supported

Pricing

$0
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 4.2 / 5
ease 4.2 / 5
features 4.0 / 5
design 4.4 / 5
support 4.2 / 5

Pros & Cons from Real Users

Pros

  • Nothing.
  • Kalshi is great - it lets me take positions based on my interests and preferences that I can't take on any other exchange. It's a great way to trade on my belief of certain market factors without taking unknown risks.
  • Trading on the S&P and Nasdaq markets has been useful to generate daily income consistently. The strike prices are kinda similar to Iron Condor options, but easier to understand. The extended trading hours 7 days a week are sweet + the volume incentive program is pretty sick!
  • Fast execution, low fees, user-friendly interface, real-time data, diverse assets, secure, reliable.
  • Great clean interface. I really enjoyed browsing through the markets and learning about them. It's a pretty unique place to be honest because you are trading on events and their probability of happening. I used to work in finance and I would have killed to have had access to this when we were hedging our portfolio's or had strong macro views.

Cons

  • Ok this Kalshi officially has the worst customer support ever. Only email (have sent 8 emails so far).
  • None really, besides some markets needing some additional liquidity
  • Small feedback: Support larger deposits and faster transactions.
  • Limited API calls, steep learning curve, lack of order groups, occasional downtime, requires coding.
  • Downside is that there are too many great markets for me to trade at one time. Honestly, if you have a view on the world you will find it on Kalshi and then put your entire deposit into it and at least in my case, make some money. Issue is, you will in no time find another market you want to get in to.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Supported
Live Online Supported
In Person Not Supported

Company Information

Codex.io
Founded: 2021
Canada
www.codex.io

Company Information

Kalshi
Founded: 2018
United States
www.kalshi.com

Alternatives

Alternatives

Categories

Blockchain APIs Supported

Categories

Crypto Supported
Prediction Market Supported

Integrations

Solana Supported
Bitcoin Not Supported
DeskBot Not Supported
Mantapex Not Supported
Mimasa AI Not Supported
Model Context Protocol (MCP) Supported
PropLine Not Supported
QuantVPS Not Supported
TypeScript Supported

Integrations

Solana Supported
Bitcoin Supported
DeskBot Supported
Mantapex Supported
Mimasa AI Supported
Model Context Protocol (MCP) Not Supported
PropLine Supported
QuantVPS Supported
TypeScript Not Supported
Claim Codex.io and update features and information
Claim Codex.io and update features and information
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Claim Kalshi and update features and information