Everything you need to build
with Memberstack.
Authentication, member management, and gated content, across a client SDK, a server SDK, a REST API, and an MCP server for AI agents. Pick your surface and start shipping.
Choose a product
DOM Package
A collection of pre-built components and methods for adding authentication, member management, and gated content to any website.
Admin Node Package
Server-side member, plan, and data management with your secret key, securely, away from the browser.
Admin REST API
Language-agnostic HTTP endpoints. Authenticate with a bearer token and manage members, plans, and data from any runtime.
MCP Server
Give AI agents like Claude and Cursor safe, structured access to your Memberstack members, plans, and data tables.
Docs for AI agentsllms-full.txt
Open the complete, plain-text map of the entire API, drop it into Claude, Cursor, or any agent for grounded answers.