# Betfair Exchange API

> Betfair's developer API for its betting exchange: market prices, order books and bet placement. Free delayed key for development; live key needs an approved application and a one-off fee.

Canonical page: https://sportdex.net/providers/betfair/  
Last checked: 2026-11-03  
SportDex Score: 60/100 (rank 16; popularity 65, community 49, transparency 75, developer experience 51)

## Facts
- Type: Betting exchange
- Website: https://developer.betfair.com
- Documentation: https://betfair-developer-docs.atlassian.net/
- Pricing page: https://betfair-developer-docs.atlassian.net/wiki/x/fyUp
- Country: United Kingdom
- Sports: not disclosed
- Data types: Trading & risk, Odds
- Protocols: REST
- Delivery: Polling only (REST)
- Live / in-play: not disclosed
- Free tier: yes
- Cheapest public paid plan: £299 one-time
- Authentication: api key

## Plans
| Plan | Price | Requests | Notes |
|---|---|---|---|
| Delayed App Key | Free | — | Delayed prices, no betting, for development and testing |
| Live App Key (personal) | £299 one-time | — | One-off activation fee debited once approved; verified funded account required |

## Who it is for

Best for: Developers building trading bots or tools on the Betfair betting exchange who need order books and bet placement.

Not ideal for: Projects that need a general sports data feed or non-Betfair odds; the API only exposes the Betfair exchange.

Use cases: Exchange trading bots; Market price monitoring; Bet placement tools

Limitations:
- Free key returns delayed prices and does not allow betting
- Live key needs an approved application and a one-off GBP 299 fee
- Commercial or vendor use needs Betfair approval
- Provider site was blocked to the crawler, so details are second-hand

## Quick answers

**What is Betfair Exchange API best for?** Developers building trading bots or tools on the Betfair betting exchange who need order books and bet placement. Not ideal for: Projects that need a general sports data feed or non-Betfair odds; the API only exposes the Betfair exchange.

**How much does Betfair Exchange API cost?** The cheapest public paid plan of Betfair Exchange API is £299 one-time.

**Does Betfair Exchange API have a free tier?** Yes. Betfair Exchange API lists a free plan called "Delayed App Key".

**What does Betfair Exchange API cover?** Betfair Exchange API is a betting exchange. Its data: Trading & risk, Odds.

**Does Betfair Exchange API have a WebSocket or streaming API?** No streaming is listed. Betfair Exchange API delivers data by REST, so you poll for updates.

**What do developers say about Betfair Exchange API?** The standard exchange API for betting bots and trading tools, with long-standing wrappers and many automation projects. Users complain about restricted access: regional blocks (Brazil), certificate login hurdles, and a reported live-key fee of around 500 pounds. Many seek third-party feeds or historical data instead.

**What are the alternatives to Betfair Exchange API?** Close alternatives in the SportDex catalog: Matchbook Exchange, Kalshi, Polymarket, Smarkets, BETDAQ.

## What developers say

The standard exchange API for betting bots and trading tools, with long-standing wrappers and many automation projects. Users complain about restricted access: regional blocks (Brazil), certificate login hurdles, and a reported live-key fee of around 500 pounds. Many seek third-party feeds or historical data instead.

Praised for: Real exchange prices and bet placement; Mature community wrappers

Complaints: Blocked in some countries; Login certificate setup is tricky; Paid live key; Historical data must come elsewhere

## Method
Facts were read from the provider's own pages on 2026-11-03. Empty fields mean the provider does not say, not that a feature is missing. Method: https://sportdex.net/methodology/