# Enable Neon Auth for the branch

`POST /projects/{project_id}/branches/{branch_id}/authbeta`

Enables Neon Auth for the specified branch by connecting it to an authentication provider. Creating the integration provisions the `neon_auth` schema in the branch database, which stores user identity data synchronized from the provider.

[Markdown for AI context](/guides/apis-sdks-reference-api-auth-create-neon-auth)

```bash title="REST API - curl"
curl "https://console.neon.tech/api/v2/projects/$PROJECT_ID/branches/$BRANCH_ID/auth" \
  -X POST \
  -H "Authorization: Bearer $NEON_API_KEY"
```

Also available in

::::tabs
:::tab{title="CLI"}
```bash
neon neon-auth enable
```
:::

:::tab{title="SDK"}
:::

:::tab{title="MCP"}
Tool: `provision_neon_auth`

Provisions Neon Auth for a Neon branch. Neon Auth is a managed authentication service built on Better Auth, fully integrated with Lakebase Postgres and the rest of the Neon backend primitives. The tool will: 1. Create the `neon_auth` schema in your database to store users, sessions, project configs and organizations 2. Set up secure Auth related APIs for your branch 3. Deploy an auth service in the same region as your Neon compute for low-latency requests 4. Return the Auth URL specific to your branch, along with credentials for your application  - Branch-compatible: Auth data (users, sessions, config) branches with your database - Google and GitHub OAuth included out of the box - Works with RLS: JWTs are validated by the Data API for authenticated queries - Better Auth compatible: Exposes the same APIs and schema as Better Auth

- `projectId` (string, required)
  The ID of the project to provision Neon Auth for
- `branchId` (string, optional)
  An optional ID of the branch to provision Neon Auth for. If not provided, the default branch is used.
- `databaseName` (string, optional)
  The database name to provision Neon Auth for. If not provided, the default database is used.
:::

:::tab{title="Console"}
Console path: Projects → Auth
:::
::::

## Parameters

Project ID

`project_id`

string

The Neon project ID

Branch ID

`branch_id`

string

The Neon branch ID

## Request body

**1 required** Required: `auth_provider`.

Auth provider

`auth_provider`

string

Authentication provider integrated with this Neon Auth configuration. `better_auth` integrates with Better Auth (the current, recommended provider). `stack` integrates with Stack Auth (deprecated). `mock` is a simulated provider for local development and testing only.

mockstackbetter\_auth

Database name

`database_name`

string

Name of the database to enable Neon Auth on. When omitted, the integration uses the project's default database.

## Response

201

Enables Neon Auth integration for the branch

::::tabs
:::tab{title="schema"}
Depth
:::

:::tab{title="example"}
:::
::::

"auth\_provider": (string),reqmock | stack | better\_auth

"auth\_provider\_project\_id": (string),req

"pub\_client\_key": (string),req

"secret\_server\_key": (string),req

"jwks\_url": (string),req

"schema\_name": (string),req

"table\_name": (string),req

"base\_url": (string),

## Errors

default

General error

This endpoint can return the standard Neon API error response.

Response fields

- `message` Required. Human-readable error message.
- `code` Required. Machine-readable error code.
- `request_id` Optional. Request identifier for debugging. You can provide one with the `X-Request-ID` header.

Retry guidance

If no response is returned, the request may still have reached the server. This is why retry safety depends on the method and status code.

Idempotent methods (`GET`, `HEAD`, `OPTIONS`) are generally safe to retry after a network error or timeout. Non-idempotent methods (`POST`, `PATCH`, `DELETE`, `PUT`) can change state, so avoid automatic retries unless your workflow can tolerate duplicate effects.

Responses with `423 Locked` or `503 Service Unavailable` are safe to retry. `423 Locked` means the resource is temporarily locked, usually because another operation is in progress.

## Related pages

- [Add an OAuth provider](./apis-sdks-reference-api-auth-add-branch-neon-auth-oauth-provider.md)
- [Add domain to redirect_uri whitelist](./apis-sdks-reference-api-auth-add-branch-neon-auth-trusted-domain.md)
- [Create new auth user](./apis-sdks-reference-api-auth-create-branch-neon-auth-new-user.md)
- [Delete auth user](./apis-sdks-reference-api-auth-delete-branch-neon-auth-user.md)
- [Delete domain from redirect_uri whitelist](./apis-sdks-reference-api-auth-delete-branch-neon-auth-trusted-domain.md)
- [Delete OAuth provider](./apis-sdks-reference-api-auth-delete-branch-neon-auth-oauth-provider.md)
- [Disable Neon Auth for the branch](./apis-sdks-reference-api-auth-disable-neon-auth.md)
- [List domains in redirect_uri whitelist](./apis-sdks-reference-api-auth-list-branch-neon-auth-trusted-domains.md)
- [List OAuth providers for the branch](./apis-sdks-reference-api-auth-list-branch-neon-auth-oauth-providers.md)
- [Retrieve email and password configuration](./apis-sdks-reference-api-auth-get-neon-auth-email-and-password-config.md)

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