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What is The Odds API?
The Odds API provides structured bookmaker prices rather than Polymarket order data. Select the sport, market type and bookmaker region, then compare the returned outcomes and timestamps. It is useful when you want a reference consensus for the same match or prop, provided the contract definitions actually align.
Who it is for
- Developers building sports-pricing comparisons
- Researchers studying historical bookmaker odds
- Spreadsheet users maintaining a sports dashboard
Features and coverage
- Available on
- REST API, Excel, Google Sheets
- Markets & venues
- Bookmakers, External data for prediction-market research
- Bookmaker coverage
Choose supported regional books.
- Market types
Retrieve moneyline, spreads, totals and selected futures.
- Props
Use supported player props and alternate lines.
- Odds formats
Request decimal or American prices.
- Event metadata
Read teams, start time and bookmaker update timestamps.
- Historical snapshots
Query available past odds on eligible plans.
- Scores and results
Retrieve supported event results.
- Spreadsheet add-ons
Use Excel or Google Sheets instead of writing an API client.
Workflows with The Odds API
Build a reference price
Match the event and settlement definition, retrieve both sides and remove the bookmaker margin using an explicit method.
Compare a historical entry
Request a snapshot available before the entry time.
Monitor quota
Estimate usage across selected markets and regions before polling.
Pricing and total cost
Starter includes 500 credits/month for free. Paid quota tiers include 20,000, 100,000, 5 million and 15 million monthly credits; numeric prices and historical access should be checked on the current plan table.
Starter
Free
- 500 credits/month
- Sports, bookmakers and markets covered by the selected endpoints
20K
$30/month
- 20,000 credits/month
- Sports, bookmakers and markets covered by the selected endpoints
100K
$59/month
- 100,000 credits/month
- Sports, bookmakers and markets covered by the selected endpoints
5M
$119/month
- 5,000,000 credits/month
- Sports, bookmakers and markets covered by the selected endpoints
15M
$249/month
- 15,000,000 credits/month
- Sports, bookmakers and markets covered by the selected endpoints
Getting started
Before you start: A bookmaker quote is not a Polymarket fill.
- Choose API or spreadsheet access.
- Request an API key.
- Select sport, region and market type.
- Inspect timestamps and outcome definitions.
- Monitor usage and update cadence.
Useful links
What to check
- A bookmaker quote is not a Polymarket fill.
- Coverage and refresh intervals vary by sport, book and market.
- Request-credit costs depend on the requested data; an HTTP call is not always one credit.
- Historical availability differs from free current-odds access.
A closer look
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Frequently asked questions about The Odds API
Does it execute bets?
It supplies data.
Can I use a spreadsheet?
Excel and Google Sheets add-ons are offered.
Which formats are supported?
Decimal and American odds.