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Braintrust integrates with Vercel in two ways: trace calls from the Vercel AI SDK in your application, or collect traces through the Vercel Marketplace integration.

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Vercel Marketplace tracing

The Vercel Marketplace integration collects traces for AI calls in your Vercel applications with minimal setup. No package installation required.

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Setup

Set up the marketplace integration by installing it from Vercel, linking Braintrust, choosing a plan, and adding a drain.
1

Install the integration

Visit the Vercel Marketplace listing and select Install.
2

Create or link your account

Create a Braintrust account or link your existing account.
3

Select a plan and project

Select a plan and create a project name:
  • Starter: Free with basic limits.
  • Starter (pay-as-you-go): No monthly fee, but charges for usage beyond the free tier. Requires a payment method.
  • Pro: Higher limits with a monthly fee.
See Plans and limits for a full comparison.
4

Add a drain

Select Add Drain to configure trace collection.

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Configure log drain

Choose which trace data Vercel sends to Braintrust and which projects the drain covers.
1

Select trace data

In the Add Drain panel, select Traces and Next.
2

Choose projects

Choose which Vercel projects to trace (All Projects or specific projects).
3

Set sampling

Set the sampling rate for trace collection.

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Enable OpenTelemetry

In your Next.js project, create an instrumentation.ts file and call registerOtel to emit traces to the marketplace drain.

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Vercel Marketplace resources