What Odds-API.io Is
Odds-API.io is a sports odds API. An API is a way for your code to ask a service for data. You send a request with your key, and odds come back in one JSON format.
It covers pre-match and live odds, player props, scores and past results. It also lists sharp books, exchanges and prediction markets. A sharp book is a betting site known for fair, hard-to-beat prices.
It is a data service. It does not take bets.
Who Odds-API.io Is For
This fits developers who want broad bookmaker coverage in one feed. It suits a hobby coder who builds an odds screen. It also suits a small team that wants ready-made value and arbitrage lists.
A value bet is a bet that pays more than it should. Arbitrage means betting both sides at different books to lock in a small profit. It has ready-made endpoints for both. It has a dropping-odds endpoint too.
It is probably not for you if you want a free key. New free keys are paused. It is also not for you if you do not write code.
How It Works
- Pick a paid plan and check out. Your key shows up on your dashboard afterward.
- Call REST endpoints for odds, props, scores, history and the ready-made lists.
- For a live feed, use WebSocket. That is a stream that sends changes to you.
There are also SDKs and an MCP server. MCP lets an AI tool ask for the data.
It says pre-match odds refresh in seconds and live odds are pushed quickly. Those are the vendor's claims.
What to Weigh Before You Pay
Prices are posted in pounds. Your checkout may show your local money.
- No free plan for new users. New free keys are paused. Some older free keys still exist with small limits.
- Plans cap your books. The service covers a very wide range of bookmakers. Each plan lets you pick only a few.
- The request cap is the same on every plan. What changes is books and support.
- Live streaming costs extra. WebSocket costs the plan price again, so your bill about doubles.
- No reselling. You need written consent to resell or share the data.
- You keep access after you cancel. It runs to the end of the billing period. Buyers in Norway and Europe may have a short withdrawal right.
Try it on a cheap plan first. Check that the books you care about are in your plan.
Bottom Line
Odds-API.io suits coders who want wide coverage, props and ready-made value and arbitrage lists. Because you must pay up front, check the books and the live price before you commit. Plan for the WebSocket cost if you need a stream.