Odds-API.io: Sports Odds for Sheets brings sports odds data from Odds-API.io into Google Sheets™.

• Explore: search a team or league and see the best price per market across 450+ bookmakers, the margin-free fair price and line movement, then insert it as a sheet.
• Recipes: build a ready-to-analyse sheet in one click: best prices for a league, price gaps between bookmakers, prices above the fair price, or the biggest moves since opening. Optional refresh every minute while the panel is open.
• Playground: call any endpoint of the odds API, preview the response and insert it as a table.
• Formulas: =ODDS(eventId, market, bookmaker) and =ODDS_TABLE(sport, league, market).
• Every table is tidy and typed, with suggested questions for Gemini in Sheets, so pivot tables, charts and AI analysis work straight away.

Requires an Odds-API.io API key (paid plans, see https://odds-api.io/pricing). The add-on only reads and writes the spreadsheet you open it in, and only sends your API key and the filters you choose to api.odds-api.io.

API docs: https://docs.odds-api.io
Source code: https://github.com/odds-api-io/odds-api-spreadsheets