# Kalshi Odds API
URL: https://sockodds.com/bookmakers/kalshi-odds-api/

> Access Kalshi betting odds through the SockOdds API. Structured JSON including head to head, lines, totals, player props and more, keyed bookmakerID=kalshi.

Access Kalshi betting odds through the SockOdds API. Structured JSON data including head to head, lines, totals, player props and more — `bookmakerID=kalshi`.

## Why choose our Kalshi exchange API?

Our Kalshi API provides clean, structured Kalshi odds data for developers and betting platforms, eliminating the need for scraping or unstable data feeds. US-regulated prediction market; sports contracts priced alongside the books.

## Kalshi Odds API Overview

The SockOdds Kalshi odds API provides fast, accurate data and odds from Kalshi across 10 leagues: [NFL](https://sockodds.com/leagues/nfl-odds-api/), [MLS](https://sockodds.com/leagues/mls-odds-api/), [MLB](https://sockodds.com/leagues/mlb-odds-api/), [La Liga](https://sockodds.com/leagues/la-liga-odds-api/), [Premier League](https://sockodds.com/leagues/epl-odds-api/), [Serie A](https://sockodds.com/leagues/it-serie-a-odds-api/), [Bundesliga](https://sockodds.com/leagues/bundesliga-odds-api/), [Ligue 1](https://sockodds.com/leagues/fr-ligue-1-odds-api/), [ATP](https://sockodds.com/leagues/atp-odds-api/), [WTA](https://sockodds.com/leagues/wta-odds-api/). 253 events are priced by Kalshi right now.

With a single, unified API solution, developers can retrieve pre-match Kalshi odds, including:

- Head to head / moneylines (2-way and 3-way markets)
- Lines, spreads and handicaps
- Totals (over/under)
- Alternative lines
- Player props and game props
- Period-specific markets (quarters, halves, innings, sets, rounds)

All data is provided in structured JSON via REST endpoints, refreshed every ~2 minutes.

## Kalshi API Features & Market Types

### Main markets

- **Head to head** — 2-way and 3-way lines
- **Line / handicap** — spreads with the price
- **Totals** — over/under lines for points, goals, runs and more
- **Period markets** — halves, quarters, innings, sets, rounds where priced

### Player props & alternate lines

Kalshi prices at match and team level in the feed today; alternate lines and team props where offered.

### Pre-match data

- **Pre-game odds** — current odds before game time, with `decimal` alongside the American string
- **Availability** — a suspended selection is listed with `available: false`, never dropped silently
- **Line movement tracking** — every price carries `lastUpdatedAt`, and finished events are retained

### Deeplinks & settlement data

- **Deeplinks** — not yet carried for Kalshi
- **Results** — event results and `scoringSupported` flags where the source grades the market

## Kalshi coverage by league

| League | leagueID | Events priced |
| --- | --- | --- |
| [NFL](https://sockodds.com/leagues/nfl-odds-api/) | `NFL` | 130 |
| [MLS](https://sockodds.com/leagues/mls-odds-api/) | `MLS` | 96 |
| [MLB](https://sockodds.com/leagues/mlb-odds-api/) | `MLB` | 85 |
| [La Liga](https://sockodds.com/leagues/la-liga-odds-api/) | `LA_LIGA` | 41 |
| [Premier League](https://sockodds.com/leagues/epl-odds-api/) | `EPL` | 39 |
| [Serie A](https://sockodds.com/leagues/it-serie-a-odds-api/) | `IT_SERIE_A` | 33 |
| [Bundesliga](https://sockodds.com/leagues/bundesliga-odds-api/) | `BUNDESLIGA` | 27 |
| [Ligue 1](https://sockodds.com/leagues/fr-ligue-1-odds-api/) | `FR_LIGUE_1` | 27 |
| [ATP](https://sockodds.com/leagues/atp-odds-api/) | `ATP` | 12 |
| [WTA](https://sockodds.com/leagues/wta-odds-api/) | `WTA` | 4 |

## Kalshi Odds API Technical Specifications

### API Architecture

- **REST API** — Simple HTTP endpoints with JSON responses, identical to the SportsGameOdds v2 paths
- **Polling, not push** — the feed refreshes every ~2 minutes; `/v2/stream/events` is reserved and answers 501 rather than pretending
- **Rate limits** — per-key, per-minute meters that bind under concurrency; plans sized to your usage
- **Authentication** — secure API key access via the `x-api-key` header or `apiKey` query parameter

### Data Update Speed

- **Odds updates** — every ~2 minutes across every bookmaker lane
- **Event status** — `status` flags and `info.stale` tell you exactly how current a price is

### Developer Resources

- [Interactive documentation](https://sockodds.com/docs/) — live examples, copy-paste snippets and an [AI (vibe coding)](https://sockodds.com/docs/info/ai-vibe-coding/) context
- [SDKs & libraries](https://sockodds.com/docs/sdk/) — the SportsGameOdds SDKs for TypeScript, Python, Ruby, Go and Java work unchanged with the base URL pointed here
- [Postman collection](https://sockodds.com/postman-collection/) — pre-built requests ready to run
- [Support](https://sockodds.com/docs/help/) — email support on every plan, priority on paid plans

### Kalshi market coverage by category

| Market category | Example markets | Markets | Availability | Typical bookmakers |
| --- | --- | --- | --- | --- |
| **Full game lines** | Points / score O/U, Points / score 1X2, Points / score | 7 oddIDs | Pre-match | [BetFocus](https://sockodds.com/bookmakers/betfocus-odds-api/), [MintBet](https://sockodds.com/bookmakers/mintbet-odds-api/), [Dabble](https://sockodds.com/bookmakers/dabble-odds-api/), [Picklebet](https://sockodds.com/bookmakers/picklebet-odds-api/), [BetDeluxe](https://sockodds.com/bookmakers/betdeluxe-odds-api/), [Betfair Exchange](https://sockodds.com/bookmakers/betfairexchange-odds-api/) |

## Use Cases for Kalshi API Data

- [Arbitrage](https://sockodds.com/use-cases/arbitrage-betting-api/) & [+EV tools](https://sockodds.com/use-cases/positive-ev-betting-api/) — compare Kalshi odds across every Australian bookmaker to uncover arbitrage opportunities and positive expected value angles.
- [Odds comparison platforms](https://sockodds.com/use-cases/odds-comparison-api/) — display Kalshi odds from every book side by side for comprehensive line shopping.
- **Pricing models & trading** — use Kalshi market data as inputs for proprietary pricing algorithms and betting strategies.
- [Sports analytics & research](https://sockodds.com/use-cases/sports-betting-machine-learning/) — examine Kalshi line movements and betting-market patterns, and build predictive models on retained events.
- [Betting automation](https://sockodds.com/use-cases/odds-alert-bot-api/) — build systems that monitor Kalshi lines across bookmakers and trigger actions when your target odds appear.
- [Sportsbook & fantasy apps](https://sockodds.com/use-cases/sports-betting-app-api/) — power your Kalshi product with reliable odds, status and bet-slip deeplinks.

## Kalshi Odds API Documentation

Our interactive documentation covers everything you need to integrate Kalshi odds into your project:

- Full endpoint reference with parameters and response schemas
- Live request and response examples
- Code snippets in Python, JavaScript, Ruby, Go and Java
- Authentication setup and API key management
- Rate limiting and the `notice` field
- Error handling and troubleshooting

[View documentation](https://sockodds.com/docs/)

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