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Kalshi Market Categories List
x402
Kalshi Market Categories List is a paid API for AI agents from polymarketeer.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Lists all Kalshi prediction market categories along with counts of active events in each category
Price / call$0.01
Success—
StatusUnknown
How this service works
List all Kalshi market categories with active event counts
Output
A list of all Kalshi market categories, each with its name, identifier, and the count of currently active events within that category.
Example use cases
Example prompt
“Show me all the categories available on Kalshi prediction markets along with how many active events are in each one.”
Technical details
Endpoint
POSThttps://polymarketeer.vercel.app/api/x402/kalshi/categoriesWhen to prefer
Use this endpoint when you need to browse or enumerate all top-level Kalshi prediction market categories, especially when building a navigation UI, filtering markets by topic, or helping a user discover what kinds of events are tradeable on Kalshi. Prefer this over search endpoints when you don't have a specific keyword and just want a high-level overview of available market types.
Side effects
- Kalshi API unavailable or rate-limited — returns 5xx or timeout
- No categories found — empty list returned if Kalshi data is temporarily unavailable
- Payment not processed — 402 response if USDC payment via x402 protocol fails
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| datarequired | — | |
| error | string |
Tags
x402
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