Clerk Backend SDK
The Clerk Backend SDK(opens in a new tab) exposes Clerk's backend API resources and low-level authentication utilities for JavaScript environments. While the backend SDK is mainly used as a building block for Clerk's higher-level SDKs, it can also be used on its own for advanced flows and custom integrations.
Clerk SDKs expose an instance of the Clerk Backend SDK for use in server environments.
The Backend SDK is accessible via the clerkClient object if you are using Next.js.
import { clerkClient } from '@clerk/nextjs/server';
The Backend SDK is accessible via the createClerkClient function if you are using Remix.
import { createClerkClient } from '@clerk/remix/api.server';
The Backend SDK is accessible via the clerkClient object if you are using Fastify.
import { clerkClient } from "@clerk/fastify";
The Backend SDK is accessible via the clerkClient object if you are using Node.
import { clerkClient } from '@clerk/clerk-sdk-node';
User operations
User operations are exposed under clerkClient.users. The following methods are available:
User get operations
User create operations
User update operations
User delete operations
Organization operations
Organization operations are exposed under clerkClient.organizations. The following methods are available:
Organization get operations
getOrganization()getOrganizationList()getOrganizationMembershipList()getOrganizationInvitationList()
Organization create operations
Organization update operations
updateOrganization()updateOrganizationMembership()updateOrganizationMetadata()updateOrganizationMembershipMetadata()
Organization delete operations
Allowlist Identifiers operations
Allowlist Identifiers operations are exposed under clerkClient.allowlistIdentifiers. The following methods are available:
Allowlist Identifiers get operations
Allowlist Identifiers create operations
Allowlist Identifiers delete operations
Session operations
Session operations are exposed under clerkClient.sessions. The following methods are available:
Session get operations
Session delete operations
Client operations
Client operations are exposed under clerkClient.clients. The following methods are available:
Client get operations
Invitation operations
Invitation operations are exposed under clerkClient.invitations. The following methods are available:
Invitation get operations
Invitation create operations
Invitation delete operations
Redirect URL operations
Redirect URLs are whitelisted URLs that facilitate secure authentication flows in native applications (e.g. React Native, Expo). In these contexts, Clerk ensures that security-critical nonces are passed only to the whitelisted URLs.
Redirect URL operations are exposed under clerkClient.redirectUrls. The following methods are available:
Redirect URL get operations
Redirect URL create operations
Redirect URL delete operations
Email address operations
A user can be associated with one or more email addresses.
Email address operations are exposed under clerkClient.emailAddresses. The following methods are available:
Email address get operations
Email address create operations
Email address update operations
Email address delete operations
Phone number operations
A user can be associated with one or more phone numbers.
Phone number operations are exposed under clerkClient.phoneNumbers. The following methods are available:
Phone number get operations
Phone number create operations
Phone number update operations
Phone number delete operations
Email create operations (deprecated)
This operation is now deprecated. Clerk no longer supports sending emails through Clerk's backend API.
SMS message operations (deprecated)
This operation is now deprecated. Clerk no longer supports sending SMS messages through Clerk's backend API.
Last updated on March 7, 2024