# LaunchDarkly is now available on the Vercel Marketplace

**Published:** August 11, 2026 | **Authors:** Hedi Zandi, Joe Sadowski, Sam Halstead | **Contributors:** Ben Sabic

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[LaunchDarkly](https://vercel.com/marketplace/launchdarkly) is now available on the [Vercel Marketplace](https://vercel.com/marketplace), allowing you to quickly get started with feature flags without additional setup. You can:

- Sync flags into [Global Config](https://vercel.com/docs/global-config) and evaluate them locally
- Target releases by user, attribute, or segment
- Run experiments with metrics, and roll back with a kill switch
- View and override flags from the Vercel Toolbar with the [Flags Explorer](https://vercel.com/docs/flags/flags-explorer)

To get started, run `vercel install launchdarkly`, add the `@flags-sdk/launchdarkly` adapter, and declare a flag with the [Flags SDK](https://flags-sdk.dev/):

**flags.ts**
```typescript
import { flag } from "flags/next";
import { ldAdapter, type LDContext } from "@flags-sdk/launchdarkly";

export const exampleFlag = flag<boolean, LDContext>({
  key: "example-flag",
  identify: () => ({ key: "user-123" }),
  adapter: ldAdapter.variation(),
});
```

Using a coding agent? Hand it this prompt:

**Prompt for coding agents**

Set up LaunchDarkly feature flags in this project using Vercel's Flags SDK. Reference: https://flags-sdk.dev/providers/launchdarkly

The project connects to LaunchDarkly through the Vercel Marketplace integration. The adapter reads LAUNCHDARKLY_CLIENT_SIDE_ID, LAUNCHDARKLY_PROJECT_SLUG, and EXPERIMENTATION_CONFIG from the environment. Run vercel env pull to fetch them locally, and set any that are missing using values from the LaunchDarkly dashboard.

Install @flags-sdk/launchdarkly. Declare each flag in flags.ts using flag() from flags/next with adapter: ldAdapter.variation(), and an identify function that builds the LDContext from cookies or headers without making network calls. Flag keys must match flags that exist in LaunchDarkly.

Evaluate flags server-side by awaiting them in a Server Component or route handler, and gate the new feature behind one.

Add [LaunchDarkly](https://vercel.com/marketplace/launchdarkly) from the Vercel Marketplace, or read the [adapter docs](https://flags-sdk.dev/providers/launchdarkly).

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📚 **More updates:** [View all changelog entries](/changelog/sitemap.md) | [Blog](/blog/sitemap.md)