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triggerdotdev--trigger.dev/docs/apikeys.mdx
James Ritchie fade22015f Docs – v4 GA updates (#2298)
* Adds new features table to top of v4 upgrade guide

* Adds wait idempotency to wait-until, wait-for, and wait-for-token pages

* Adds new priority docs page and updates the v4 upgrade guide

* Adds new task lifecycle hooks

* Removes the message about requiring tasks to be exported

* Adds new global lifecycle hooks section

* Moves sections from upgrade guide into the table

* Adds hidden task page

* Improves the global lifecycle hooks section

* Updates middleware and locals section

* Adds new useWaitToken page to the react hooks section

* Adds a new ai.tool section

* Moves Docker (legacy) page into self-hosting section

* Removes known issues from v4 upgrade guide

* Replace “toolTask” with “ai.tool” in the Streams page example

* Renames guide to “Migrating from v3” and adds redirect

* Remove references to v4

* Removes changelog from migration guide

* The installation guide now references `@latest update`

* Changes all references from `/sdk/v3` to `/sdk`

* Updates @v4-beta to @latest

* Fixed broken link

* Fixes broken link

* Adds an upgrade to v4 using AI section

* Fixes 2 broken links

* Adds an entry for targetting preview branches

* Updates the run statuses

* Adds boolean helpers section to the runs and realtime pages

* Updates the concurrency page

* Updates the test page to include the new options

* Adds SDK and curl options for the preview branch targeting

* Updates new bulk actions page

* Remove the releasing concurrency section

* Got rid of some more @v4-beta mentions

* Improved rate limit docs

* Improved migrating docs

* Removed commented sections of the docs

* useWaitToken hook

* Fixed the description

* Fix for missing test image

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Co-authored-by: Matt Aitken <matt@mattaitken.com>
Co-authored-by: Dan <8297864+D-K-P@users.noreply.github.com>
2025-08-18 12:34:55 +01:00

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---
title: "API keys"
description: "How to authenticate with Trigger.dev so you can trigger tasks."
---
### Authentication and your secret keys
When you [trigger a task](/triggering) from your backend code, you need to set the `TRIGGER_SECRET_KEY` environment variable.
Each environment has its own secret key. You can find the value on the API keys page in the Trigger.dev dashboard:
![How to find your secret key](/images/api-keys.png)
<Note>
For preview branches, you need to also set the `TRIGGER_PREVIEW_BRANCH` environment variable as
well. You can find the value on the API keys page when you're on the preview branch.
</Note>
### Automatically Configuring the SDK
To automatically configure the SDK with your secret key, you can set the `TRIGGER_SECRET_KEY` environment variable. The SDK will automatically use this value when calling API methods (like `trigger`).
```bash .env
TRIGGER_SECRET_KEY="tr_dev_…"
TRIGGER_PREVIEW_BRANCH="my-branch" # Only needed for preview branches
```
You can do the same if you are self-hosting and need to change the default URL by using `TRIGGER_API_URL`.
```bash .env
TRIGGER_API_URL="https://trigger.example.com"
TRIGGER_PREVIEW_BRANCH="my-branch" # Only needed for preview branches
```
The default URL is `https://api.trigger.dev`.
### Manually Configuring the SDK
If you prefer to manually configure the SDK, you can call the `configure` method:
```ts
import { configure } from "@trigger.dev/sdk";
import { myTask } from "./trigger/myTasks";
configure({
secretKey: "tr_dev_1234", // WARNING: Never actually hardcode your secret key like this
previewBranch: "my-branch", // Only needed for preview branches
baseURL: "https://mytrigger.example.com", // Optional
});
async function triggerTask() {
await myTask.trigger({ userId: "1234" }); // This will use the secret key and base URL you configured
}
```