Your strategy.Our execution layer.
Send bets from your own models, scripts or trading systems into your bookmaker accounts through B337.
Your strategy · Your accounts · Your infrastructure
- Bet instruction
- Received
- Sent
- Placed
Your code decides what to bet.
Execution API does not decide what to bet. Your model, strategy or trading system sends the instruction.
One HTTPS call with your API key. B337 answers at once with a correlation id, then tells you how the bet went.
$ curl -X POST https://api.b337.ai/v3/place_bet \-H "X-API-Key: $B337_API_KEY" \-d '{"session_id": "…","category": "racing","track": "Moonee Valley", "race_num": 9, "race_type": "(R)","date": "2026-10-24", "market": "win","runner": "Winx","target_odds": 2.10, "stake": 250}'202 {"status": "pending", "correlation_id": "…", "bookie": "sportsbet"}$ curl -X POST https://api.b337.ai/api/bet_status \-d '{"correlation_ids": ["…"]}'200 {"status": "completed", "success": true, "odds": 2.10, "stake": 250.00}
Prefer not to poll? Send a callback_url and the result is posted to you, signed.
Your bookmaker accounts, ready for instructions.
Open Sessions stay logged in to your bookmaker accounts and wait for bets sent from your code, the API, the Terminal or other connected B337 tools.
| Account | Status | Balance | Bonus | PC |
|---|---|---|---|---|
 Sportsbet #01 | Keeping Account Logged in | $2,480.00 | $50 | PC 1 |
 TAB #02 | Keeping Account Logged in | $1,315.50 | – | PC 1 |
 Ladbrokes #01 | Keeping Account Logged in | $960.00 | $25 | PC 2 |
 Neds #03 | Keeping Account Logged in | $1,720.25 | – | PC 2 |
 bet365 #01 | Keeping Account Logged in | $3,105.00 | – | PC 3 |
One execution layer. Your accounts.
The same interface addresses any of your connected accounts. Send a bet to one session, or name a split rule and let B337 spread it over your active sessions.
Bet instruction · from your code
POST /v3/place_bet
"session_id": "…" // Sportsbet #01
"runner": "Winx", "stake": 250
B337
Execution
- Sportsbet #01Ready
- TAB #02Ready
- Ladbrokes #01Ready
- Neds #03Ready
- bet365 #01Ready
Name the session and the bet goes to that account only.
Every bet comes back to the dashboard.
API bets land in the same Open Bets list as everything else you place through B337, tagged API, and result there too.
| Account | Event | Bet | Odds | Stake | Strategy | Placed at | Status |
|---|---|---|---|---|---|---|---|
| TAB #02 | Flemington R7 | 4. Verry ElleegantFlemington R7 | 5.50 | $80.00 | API | 14:31:12 | Pending |
| Neds #03 | Collingwood v Brisbane | CollingwoodCollingwood v Brisbane | 1.85 | $150.00 | API | 14:12:04 | Pending |
Execution you can audit.
Every bet placed through B337 is recorded so you can review activity, results and performance from one dashboard.
Cumulative P&L
+$2,320.00
Day 30 includes Winx at 2.10, the bet from the top of this page.
- Total Bets
- 412
- Total Stake
- $61,840.00
- Average Stake
- $150.10
- Profit/Loss
- +$2,320.00
- ROI
- 3.75%
- Avg CLV
- +3.4%
Your strategy stays yours.
- Your strategy
- B337 executes the instructions you send. We do not need to own your betting logic.
- Your accounts
- Bets are executed into bookmaker accounts you control.
- Your infrastructure
- Sessions use the configured machine and proxy infrastructure associated with your setup.
Your sideYours
Strategy · Model · Signals · Code
B337Ours
Execution API · Bet status · Dashboard & history
Your PC & proxyYours
B337 client · Open Sessions
Your bookmaker accountYours
Sportsbet, TAB, Ladbrokes, …
Already have a strategy?
Execution API
You decide what to bet.
- Your model / code
- B337 execution
- Your bookmaker accounts
Best for: teams that already have their own betting logic.
Talk about Execution APIFull Automation
B337 provides the strategy and execution.
- B337 strategy
- Your parameters
- B337 execution
- Your bookmaker accounts
Best for: teams that want to use B337's existing strategies.
Explore Full AutomationBring the strategy.We'll handle execution.
Connect your own betting system to B337 and execute across your bookmaker accounts.
B337 is software you run and control, not a bookmaker. Bookmakers can restrict or close accounts that use automation, and automation can fail.