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At a glance

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Credentials

Set these per environment. See Connect an integration.

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Setup

  1. Sign in to LaunchDarkly: Use an existing account or start a trial at https://app.launchdarkly.com. A project with a couple of test flags is enough to exercise all tools.
  2. Create an access token: Go to Organization settings → Authorization (https://app.launchdarkly.com/settings/authorization) and create a personal or service access token. A Reader role token is enough for the read tools; toggling flags needs Writer access to the relevant projects.
  3. Set the environment variable: Add the token to your .env as LAUNCHDARKLY_API_TOKEN=…
  4. Verify access: Run List Projects, then List Feature Flags with a project key.

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Provider notes

  • The Authorization header contains the raw token with no Bearer prefix
  • Toggle Feature Flag uses LaunchDarkly’s semantic patch format: Content-Type ‘application/json; domain-model=launchdarkly.semanticpatch’ with an instructions array
  • EU and Federal instances use different hosts (app.eu.launchdarkly.com, app.launchdarkly.us); these tools target the commercial instance at app.launchdarkly.com
Provider API reference.

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Tools

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Verify the connection

Call a read tool such as launchdarkly__list_projects with arguments for your account. Confirm that the result comes from the intended account or workspace before enabling write tools.