Search Kalshi markets and read Yes and No prices in dollars, order books, trades and price candles, with event and series rules. Read public trader profiles, comments and the leaderboard by profit, volume or markets traded.
WHAT YOU CAN BUILD / 12 ENDPOINTS
Find your use case, then explore the request and response.
/v1/kalshi/searchBuild a market discovery search from keyword results with event and series titles, categories, volume, trending flags and each market’s Yes bid, ask and last price. Continue with the returned cursor.
/v1/kalshi/marketsBuild a market screener filtered by event, series, status or close time, with Yes and No bids and asks in dollars, last price, volume, open interest and settlement results. Continue with the returned cursor.
/v1/kalshi/marketBuild a market detail card with the question, Yes and No bids and asks, last and previous-day prices, volume, open interest, strike, rules and settlement result.
/v1/kalshi/eventsBuild an event calendar from event titles, categories, series, strike dates and settlement sources, with each event’s markets when you set includeMarkets. Continue with the returned cursor.
/v1/kalshi/eventBuild an event page that compares every market’s prices, volume and open interest, with event rules, settlement sources and, with includeMetadata, images and per-market colors.
/v1/kalshi/seriesBuild a series reference with the title, frequency, category, tags, fee structure, contract terms, settlement sources and total contracts traded.
/v1/kalshi/orderbookBuild a depth chart from resting Yes and No bids with their sizes, plus the best bid and ask on each side in dollars.
/v1/kalshi/tradesBuild a trade tape with Yes and No prices, contract counts, taker side and time for a market, newest first. Filter with since and until and continue with the returned cursor.
/v1/kalshi/price-historyBuild a price chart from minute, hourly or daily candles with traded open, high, low, close and mean prices, Yes bid and ask, volume and open interest, for a market or every market of an event.
/v1/kalshi/profileBuild a trader card with the public bio, followers, following, posts, profile views, top categories, join date and the trading volume, dollars traded and profit and loss the trader shows.
/v1/kalshi/commentsBuild a trade-idea feed from a trader’s recent comments and the posts they answer, or a post’s full comment thread, with market, side, cost, payout, return and engagement counts.
/v1/kalshi/leaderboardBuild a trader ranking by projected profit, volume or markets traded, overall or for one category, with rank, nickname and the reported value.
HOW IT WORKS
Run a sample below without a key.
Create a free account and copy your key. You start with 100 free credits; no card needed.
Pick one of the 12 Kalshi endpoints and add its input, such as a search query.
Call it with your key in the x-api-key header. ScrapeAtlas reads the public Kalshi data and retries when a read fails.
Get structured JSON with a coverage status. Only successful requests use a credit.
LIVE RESULTS
Try the Kalshi API right here. This sample uses the Search Kalshi markets endpoint and returns live JSON. No API key needed.
Start with world cup, or change the query field to your own value.
Execute the sample code and see the response in the JSON response tab.
Open the full playground to try more parameters and copy code for your app.
// Run this sample here — no API key needed.
const value = "world cup";
const url = new URL("/website/demo/kalshi",
"https://api.scrapeatlas.com");
url.searchParams.set("value", value);
const response = await fetch(url);
const data = await response.json();
console.log(data);Run the sample to see the live JSON response here./v1/kalshi/searchA live example from our playground. Change the value above, then select Run sample.
CUSTOMER STORIES
Watch Nigel’s story
Watch Janu’s storyEmail Viktor with a testimonial & receive 10,000 free credits.
Pay as you go
One-time credit packs, priced in US dollars. Credits never expire, and there is no monthly commitment.
Try the API with your next idea.
$0No credit card needed
100 free credits
One starter grant per account
For a new idea or a one-off project.
$19USD / one-time
10,000 credits
$1.90 per 1,000 credits
For regular workflows and bigger builds.
$89USD / one-time
50,000 credits
$1.78 per 1,000 credits
Save 6.3% compared with Starter
For high-volume data collection.
$249USD / one-time
200,000 credits
$1.25 per 1,000 credits
Save 34.5% compared with Starter
Enterprise Plan
Let’s talk about a plan that fits your scale.
Kalshi API
Search Kalshi events by keyword and list markets, events and series with prices, volume and settlement rules. Read a market’s order book, trades and price candles, and look up public trader profiles, Kalshi Social comments and the leaderboard. Results keep Kalshi’s field names, dollar-string prices and cursors.
Pass a market ticker to Market for Yes and No bids and asks, the last traded price and the price a day earlier, all in dollars. A price of 0.62 means 62 cents, a 62% implied probability. Use Event to compare every market of an event, or Search to find markets by keyword first.
Yes. Price History returns minute, hourly or daily candles with traded open, high, low, close and mean prices, Yes bid and ask, volume and open interest, for one market or every market of an event. Trades lists executed trades newest first; follow the cursor to continue into older trades, or set since and until for a window.
Each trade returns its ID, market ticker, contract count, Yes and No prices in dollars, the taker’s side and the execution time, with a block-trade flag. Trades are anonymous. Pass a market ticker, filter by time with since and until, and send the returned cursor to request the next page.
Leaderboard ranks traders by projected profit, volume or number of markets traded, overall or for one category such as Politics or Sports. Pass a nickname from the list to Profile for the bio, followers, top categories and the trading metrics the trader shows, or to Comments for their recent trade ideas and replies.
Yes. Order Book returns the resting Yes and No bids at each price with their sizes in contracts, plus the best bid and ask on each side in dollars. Kalshi books hold bids only, so a Yes ask is one dollar minus the best No bid. Set depth to limit the price levels per side.
Create a ScrapeAtlas account and generate an API key in the dashboard. Send the key in the x-api-key request header when calling https://api.scrapeatlas.com. The API playground lets you enter an endpoint’s parameters and inspect its JSON response.
Yes. Send authenticated HTTP requests from Python, JavaScript or another language that supports HTTP. The endpoint reference includes request examples and response fields. Use the ScrapeAtlas CLI for terminal workflows and pass the returned pagination values when requesting additional result pages.
Yes. Connect an MCP-compatible assistant to the ScrapeAtlas MCP server to discover and call the public platform tools with your ScrapeAtlas account. The agent reference also gives coding assistants a readable guide to the endpoints and their request schemas.
MORE PLATFORMS
Make something with it
Bring social data into your next project.
Start with 100 free credits and see what you can build.
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