Autoscaling Report: Production databases on Neon use 2.4x less compute and 50% less cost than if they were running on a provisioned platform.
Neon
    Docs
    Log inSign up
    /API reference/Legacy Auth/Create new auth user
    POST/projects/auth/userdeprecated

    This endpoint is deprecated. Scheduled for removal on 2026-03-01.

    Create new auth user

    DEPRECATED, use /projects/{project_id}/branches/{branch_id}/auth/users instead. Creates a new user in Neon Auth. The user will be created in your neon_auth.users_sync table and automatically propagated to your auth project, whether Neon-managed or provider-owned.

    Markdown for AI context

    Quick start

    REST API - curl
    curl "https://console.neon.tech/api/v2/projects/auth/user" \
  -X POST \
  -H "Authorization: Bearer $NEON_API_KEY"
    Also available in
    import { createApiClient } from '@neondatabase/api-client';

const api = createApiClient({ apiKey: process.env.NEON_API_KEY });
const { data } = await api.createNeonAuthNewUser({});

    Request body

    3 required Required: project_id, auth_provider, email.

    Project ID
    project_id
    string

    Auth provider
    auth_provider
    string

    mockstackbetter_auth
    Email
    email
    string

    ≥1 chars, ≤256 chars

    Name
    name
    string

    ≥1 chars, ≤255 chars

    Response

    201

    Creates new user

    Depth
    "id": (string),req

    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.

    Was this page helpful?
    Previous Delete trusted redirect URI domainNext Delete auth user

    On this page

    Copy neon init command