> ## Documentation Index
> Fetch the complete documentation index at: https://docs.automate.ax/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Automate.ax automations are TypeScript programs.
> Use Bun for installation and command examples.
> Use Automate.ax for the product name and automate.ax for the package, CLI, and domain.
> Treat documented public APIs as current; do not invent transitional or deprecated names.

# Delete project environment variable

> Delete one Vercel project environment variable.

`deleteVercelProjectEnvironmentVariable` removes one variable by its provider ID.

```ts automations/delete-vercel-env.automation.ts theme={null}
import { automation } from "automate.ax"
import { deleteVercelProjectEnvironmentVariable } from "automate.ax/vercel"

export default automation("Remove Vercel environment variable", () => {
  deleteVercelProjectEnvironmentVariable({
    environmentVariableId: "env_123",
    project: "docs-site",
  })
})
```

`project` and `environmentVariableId` are required. Optional `customEnvironmentId` restricts deletion to one custom environment; `teamId` overrides the OAuth installation team. The output preserves Vercel's typed removal response, whose shape varies when one variable is linked to several environments.