# Fast Odds API

> Fast Odds API is an Australian sports odds API by SockOdds (ESK Solutions Pty Ltd, New South Wales). One REST request returns pre-match prices from 37 Australian bookmakers plus Pinnacle, Matchbook, ProphetX, Kalshi and Polymarket, across 46 leagues in 13 sports, with props, alternate lines and graded results. Prices refresh about every five minutes, pre-match first; it is not an in-play feed. Keys, billing and the full reference live on sockodds.com: the same API, the same prices.

Facts on this site were read from sockodds.com on 12 Oct 2026.

## Plans (USD a month; annual billing saves 20%)

- Developer (Free): 2,500 objects a month; 10 requests a minute; AFL, NRL, NFL and MLB; Sportsbet, TAB and Ladbrokes
- Rookie (US$99): 100,000 objects a month; 50 requests a minute; Every league; 10 bookmakers, bet365 and Betfair included
- Pro (US$299): Unlimited objects; 300 requests a minute; Every league; Every bookmaker and exchange; Odds history and opening and closing prices; WebSocket snapshots
- Platform (Custom): 600 requests a minute; All leagues and bookmakers; A key per environment; A direct support channel

Billing counts one object per event returned, whatever the number of markets and bookmakers inside it.

## Product

- [Australian Sports Odds API, Free Key](https://fastoddsapi.com/): What the API is, what one request returns, what "fast" does and does not mean, coverage, plans and the common questions.
- [Australian Bookmaker Odds API: 37 Books](https://fastoddsapi.com/bookmakers/): All 42 bookmakers with their key, type and the cheapest plan that includes them; shared price boards, exchanges and prediction markets, and filtering by book or region.
- [Betting Calculators: Odds, Arbitrage, EV, Kelly](https://fastoddsapi.com/calculators/): Five in-page calculators (odds converter, bookmaker margin, arbitrage stake split, expected value, Kelly stake) with the formula under each, plus the API field each number maps to.
- [Fair Odds and De-Vig Explained, with a Calculator](https://fastoddsapi.com/fair-odds/): Worked explanation of overround and four de-vig methods (multiplicative, additive, power, Shin) with numbers, an in-page calculator, and code that runs them on the API's Pinnacle and Betfair Exchange prices.
- [Betting Data Glossary: Odds, Vig, EV, Props, IDs](https://fastoddsapi.com/glossary/): Sixty betting and odds-feed terms defined in plain words, each with the API field it maps to, grouped as prices and probability, markets, strategy, settlement, and the feed itself.
- [AFL, NRL, NFL and EPL Odds API: 46 Leagues](https://fastoddsapi.com/leagues/): All 46 leagues in 13 sports with their keys and plans, how market keys and periods read across sports, and what is not covered.
- [Odds API Pricing: Free Plan, US$99 and US$299](https://fastoddsapi.com/pricing/): The four plans with limits, what every plan includes, how requests and objects are counted, a usage calculator and billing questions.
- [Odds API Quickstart: First Request in Minutes](https://fastoddsapi.com/quickstart/): Key to first response in cURL, Python and JavaScript; how to read an event, market keys, periods and sides, filters for small responses, paging, polling cadence and error handling.

## Use cases

- [Arbitrage Betting API for Australian Bookmakers](https://fastoddsapi.com/arbitrage-betting-api/): How to find arbitrage across Australian bookmakers with the API: the maths and stake split, a Python scanner, middles with alternate lines, and the traps (stale prices, shared boards, draws).
- [Historical Odds Data for Betting Models](https://fastoddsapi.com/historical-odds-data-api/): Odds history for modelling and backtesting: /v1/odds/history and opening and closing prices (Pro, recording since 14 Aug 2026), graded results, closing line value and a Python example.
- [Odds API for Discord and Telegram Bots](https://fastoddsapi.com/odds-alert-bot-api/): Building a Discord or Telegram odds alert bot: polling cadence, diffing prices by outcome ID, posting moves, handling 429s, the Pro WebSocket stream, and how much quota a bot uses.
- [Odds API for AI Agents: Tool Calls, OpenAPI, llms.txt](https://fastoddsapi.com/odds-api-for-ai-agents/): Wiring the odds API into AI agents and coding assistants: OpenAPI spec, llms.txt, Markdown docs, a tool definition, a server-side handler and the guardrails an agent needs.
- [Odds Comparison API for Australian Bookmakers](https://fastoddsapi.com/odds-comparison-api/): Building an odds comparison table or widget: best price per market across Australian books, freshness labels, matching books by outcome ID, and a Python example.
- [Player Props Odds API: AFL, NRL, MLB and More](https://fastoddsapi.com/player-props-api/): Player prop odds from Australian bookmakers: which props by sport, how to ask for them by market key, comparing lines across books, settling them from graded results, and same-game multi caveats.
- [Positive EV Betting API: De-Vig the Sharp Prices](https://fastoddsapi.com/positive-ev-betting-api/): Finding positive expected value bets by removing the margin from the API's Pinnacle prices: the formula with a worked example, a JavaScript scanner that matches outcomes across books, thresholds and caveats.
- [Prediction Market Odds API: Kalshi and Polymarket](https://fastoddsapi.com/prediction-market-odds-api/): Kalshi and Polymarket prices alongside Australian bookmaker odds in one schema: how they are keyed, converting contract prices, cross-venue comparison code, and the caveats on fees and access.
- [Sports Betting App Odds API: Odds, Fixtures, Results](https://fastoddsapi.com/sports-betting-app-api/): Using the API as the data layer for betting, tipping, media and bet-tracking apps: what each event carries, a server-side sync architecture, and settling bets from results.

## Compare

- [Best Australian Sports Betting APIs in 2026, Compared](https://fastoddsapi.com/best-australian-sports-betting-apis/): 13 providers compared on the same 12 facts, each from the provider's own pages on 12 Oct 2026 with links: Australian bookmakers, free plan, paid plans, billing unit, freshness, in-play, history, racing, codes, fair price, streaming. Honest "best for" per provider; SockOdds disclosed as ours.
- [Betfair's API Alternative for Australian Odds](https://fastoddsapi.com/betfair-exchange-api-alternative/): Fast Odds API compared with Betfair's API on twelve sourced facts (read 12 Oct 2026): bookmakers, plans, billing, freshness, in-play, history, racing, codes, fair price, streaming; when each is the better pick; what changes if you switch.
- [Krok Odds Alternative for Australian Odds](https://fastoddsapi.com/krok-odds-alternative/): Fast Odds API compared with Krok Odds on twelve sourced facts (read 12 Oct 2026): bookmakers, plans, billing, freshness, in-play, history, racing, codes, fair price, streaming; when each is the better pick; what changes if you switch.
- [Odds-API.io Alternative for Australian Odds](https://fastoddsapi.com/odds-api-io-alternative/): Fast Odds API compared with Odds-API.io on twelve sourced facts (read 12 Oct 2026): bookmakers, plans, billing, freshness, in-play, history, racing, codes, fair price, streaming; when each is the better pick; what changes if you switch.
- [odds-api.net Alternative for Australian Odds](https://fastoddsapi.com/odds-api-net-alternative/): Fast Odds API compared with odds-api.net on twelve sourced facts (read 12 Oct 2026): bookmakers, plans, billing, freshness, in-play, history, racing, codes, fair price, streaming; when each is the better pick; what changes if you switch.
- [OddsPapi Alternative for Australian Odds](https://fastoddsapi.com/oddspapi-alternative/): Fast Odds API compared with OddsPapi on twelve sourced facts (read 12 Oct 2026): bookmakers, plans, billing, freshness, in-play, history, racing, codes, fair price, streaming; when each is the better pick; what changes if you switch.
- [OpticOdds Alternative for Australian Odds](https://fastoddsapi.com/opticodds-alternative/): Fast Odds API compared with OpticOdds on twelve sourced facts (read 12 Oct 2026): bookmakers, plans, billing, freshness, in-play, history, racing, codes, fair price, streaming; when each is the better pick; what changes if you switch.
- [PuntersEdge Alternative for Australian Odds](https://fastoddsapi.com/puntersedge-alternative/): Fast Odds API compared with PuntersEdge on twelve sourced facts (read 12 Oct 2026): bookmakers, plans, billing, freshness, in-play, history, racing, codes, fair price, streaming; when each is the better pick; what changes if you switch.
- [RapidOddsAPI Alternative for Australian Odds](https://fastoddsapi.com/rapidoddsapi-alternative/): Fast Odds API compared with RapidOddsAPI on twelve sourced facts (read 12 Oct 2026): bookmakers, plans, billing, freshness, in-play, history, racing, codes, fair price, streaming; when each is the better pick; what changes if you switch.
- [SharpAPI Alternative for Australian Odds](https://fastoddsapi.com/sharpapi-alternative/): Fast Odds API compared with SharpAPI on twelve sourced facts (read 12 Oct 2026): bookmakers, plans, billing, freshness, in-play, history, racing, codes, fair price, streaming; when each is the better pick; what changes if you switch.
- [SportsGameOdds Alternative for Australian Odds](https://fastoddsapi.com/sportsgameodds-alternative/): Fast Odds API compared with SportsGameOdds on twelve sourced facts (read 12 Oct 2026): bookmakers, plans, billing, freshness, in-play, history, racing, codes, fair price, streaming; when each is the better pick; what changes if you switch.
- [The Odds API Alternative for Australian Odds](https://fastoddsapi.com/the-odds-api-alternative/): Fast Odds API compared with The Odds API on twelve sourced facts (read 12 Oct 2026): bookmakers, plans, billing, freshness, in-play, history, racing, codes, fair price, streaming; when each is the better pick; what changes if you switch.
- [theoddsapi.com Alternative for Australian Odds](https://fastoddsapi.com/theoddsapi-com-alternative/): Fast Odds API compared with theoddsapi.com on twelve sourced facts (read 12 Oct 2026): bookmakers, plans, billing, freshness, in-play, history, racing, codes, fair price, streaming; when each is the better pick; what changes if you switch.

## Company

- [About Fast Odds API, by SockOdds](https://fastoddsapi.com/about/): Who runs Fast Odds API (SockOdds, ESK Solutions Pty Ltd, New South Wales), why there are two front doors to one API, what the service promises, and contact details.
- [Odds API FAQ: Plans, Coverage, Keys](https://fastoddsapi.com/faq/): Answers on what the API is and its link to SockOdds, keys and sign-up, coverage, freshness and in-play, fair odds, history, billing and limits, and responsible use.

## API resources (on sockodds.com)

- Base URL: https://api.sockodds.com/v1 (send the key as Authorization: Bearer YOUR_KEY)
- Responses are {data, meta, links}; follow links.next for the next page; errors are application/problem+json
- Prices: GET /v1/odds?league=afl (every event in a league) and GET /v1/events/{event_id}/odds (one event)
- [OpenAPI 3.1 specification](https://sockodds.com/openapi.json)
- [API documentation](https://sockodds.com/docs/)

## Optional

- [Every page on this site as plain text](https://fastoddsapi.com/llms-full.txt)