headless.bid demoPrivate build · Sandbox only

Northline Auctions

Three doors, one auction.

Northline Auctions is a fictional truck marketplace built on headless.bid with the same versioned SDK a customer downloads. The repository has no access to the platform or SDK source.

Shared Sandbox: activity is visible to other visitors, nothing here is private, and the fixture may reset. No action reaches Production.

Bid as a customer

Use Northline's storefront, place a bid and watch a proxy respond.

  • Live Sandbox lot
  • Two isolated bidders
  • Extension clock
Open Northline

Run the back office

See the tenant's own lots, webhook events and approval queue.

  • SDK provisioning
  • Idempotent webhooks
  • Tenant approval
Open the back office

Open the console

Sign in normally, inspect the authoritative snapshot and prepare a pause request.

  • No identity bypass
  • Request-only handoff
  • Exact Sandbox context
Open the console

Bidder identity stays in Northline. Service credentials, tenant signing keys and private package tokens remain on the server.

Or follow the path

Six steps across one real auction.

Keep each door open in its own tab. These links guide you to live Sandbox surfaces; the demo never fabricates completion or auction authority.

  1. 1

    Bid and set a maximum

    Customer

    Place a direct bid, then set Bidder A's proxy to EUR 120,000.

    Do it
  2. 2

    Outbid from another tab

    Customer B

    Open Bidder B and watch the proxy answer or the clock extend.

    Do it
  3. 3

    Inspect verified delivery

    Back office

    See the signed webhook arrive once and inspect any duplicate retry.

    Do it
  4. 4

    Prepare a pause

    Console

    Use the real Sandbox console to prepare a request for SKU-4471-V24.

    Do it
  5. 5

    Approve as Northline

    Back office

    Review the exact proposal and approve or deny it in the tenant app.

    Do it
  6. 6

    Verify the sealed record

    Northline

    Download the closed lot record and re-upload the exact copy for verification.

    Do it
Request → approve → execute
Console · Request pauseNorthline · ApproveEngine · Execute and record

The requester cannot approve its own operation. Northline remains the authority and every outcome is recorded.