BetOnline API.
BetOnline esports lines, normalized.
Quick answer: BetOnline esports odds are live on KashRock — match winner, map and rounds markets for CS2, League of Legends, Dota 2, Valorant and more, on the same canonical ids as the other 24 books. One key, GET /v7/{sport}/lines.
An early-posting offshore book — when BetOnline hangs a number before the rest of the market, the flow plays and the books object show it first.
Live in the book registry
Real /v7/meta entry — the key, kind, and what the book supports, exactly as the API reports it.
{
"book_id": 315,
"key": "betonline",
"display_name": "BetOnline",
"aliases": [
"bet online",
"betonline.ag"
],
"kind": "sportsbook",
"supports": [
"lines",
"parlays"
]
}Where BetOnline shows up
- /lines
BetOnline's price per market next to the consensus fair price — the books object reports its row count and age in seconds on every call.
- /parlays
Name betonline as the leg book and price a ticket or discover +EV parlays against the rest of the market.
- /flow
When betonline moves a number first, the shift and steam plays record which venue led and how far the price ran.
Frequently asked questions
Can I get BetOnline esports odds through an API?
Yes. BetOnline esports mainlines — match winner, map and rounds markets — are ingested into the same schema as every other book. Call GET /v7/{sport}/lines and read the betonline rows on the same kr_match_id as the rest of the line books.
Which endpoints serve BetOnline lines?
Three: GET /v7/{sport}/lines for per-book prices and the consensus view, GET /v7/{sport}/parlays to price or discover parlays with betonline as the leg book, and GET /v7/{sport}/flow for steam, shift, volume and whale plays where betonline moves lead the market.
Do I have to scrape betonline.ag myself?
No. There is no upstream fetch on the request path — workers fill the cache and your call reads it. One X-API-Key header covers betonline and the other 24 books.
What if BetOnline has no lines for a sport right now?
The books object on /lines reports each venue's presence, row count and age in seconds. betonline absent simply means nothing is posted for that board — the response stays honest instead of hiding the gap.
Which plan do I need for BetOnline lines?
Hobby ($29/mo) and up — the same plan that unlocks /lines, /parlays and /flow for every line book.
KashRock is an independent data provider and is not affiliated with, endorsed by, or sponsored by BetOnline. Publicly available lines, normalized for informational use.
