Build your own
bidding application
Full infrastructure access for teams that need complete control. A typed TypeScript SDK, REST and WebSocket APIs, SSO integration, and webhook access — we handle the WebSockets, state management, and race conditions so you don't have to.
What you can build with
Three API surfaces cover the full auction lifecycle — management, reporting, and real-time events.
Auction & item management
Create auctions, upload items and images, and manage registrants programmatically.
- ✓Auction Create (Live or Preview)
- ✓Items Create & Update
- ✓Images Add / Delete
- ✓Registrants Update
Reference & reporting data
Pull auction results, sales values, bidding activity and reference data into your own systems.
- ✓Auctions & Auctioneer Lists
- ✓Items & Sales Value Reports
- ✓User Bidding Report
- ✓Vendors List & Vendor Reports
Real-time WebSocket stream
Subscribe to a live stream of auction events — the same infrastructure that powers BidJS bidding.
- ✓wss://broadcast.<region>.bidjs.com
- ✓Live bid and status events
- ✓40× concurrent connection capacity vs our previous long-poll implementation
- ✓Native browser WebSocket support
Authentication
Management API requests are authenticated with a cryptographic signature generated from credentials issued to your account. Bidder-facing sign-in can run through your existing identity provider.
Code Examples
Add the BidJS script tags, configure window.bidjs, install the TypeScript SDK, sign your management API requests, and stream real-time events over WebSocket. For AI-built auction experiences, see our guide to auction infrastructure for AI.
<!-- 1. Add the BidJS script tags to the HEAD of your page -->
<script src="https://<<SERVER_NAME>>.<<REGION>>.bidjs.com/bidjs/<<VERSION>>/bidjs.min.js"></script>
<!-- 2. Add a container element where BidJS will render -->
<div id="bidjs-container"></div>Ready to validate your prototype? Read how to test an auction integration before going live for practical checks covering bid validation, real-time state and reconnects.
Dedicated Environments
For high-volume marketplaces requiring isolated infrastructure, dedicated AWS environments are available in an agreed AWS region. Bidlogix operates multiple regional AWS environments, and customers can request their deployment region. A 99.99% SLA is available for qualifying deployments.
Staging environments are available for testing unreleased features before they reach your production deployment, and a public demonstration environment lets you build against demo data before you sign up.
Try it in a sandbox
A private test environment with sample sales, lots and registrants, plus API credentials to build with BiddingAPI.
Free for 30 days, then monthly, cancel any time. £200.00 per month after the trial.