10+ Best Free WordPress REST API & Headless Plugins
- Updated: January 27, 2026
- Reading Time: 2 mins
Headless WordPress and the REST API have transformed how websites and applications interact with WordPress. Instead of rendering content on the server and serving HTML, a headless WordPress setup separates the back end (WordPress CMS) from the front end (React, Vue, Gatsby, Next.js, mobile apps, etc.). This architecture offers tremendous flexibility, better performance, and improved development workflows.
At the heart of headless WordPress is the REST API—a standardized way for applications to request WordPress data in JSON format. The REST API is built into WordPress core, but for many use cases—such as custom fields, authentication, caching, and enhanced endpoints—you’ll want plugins to extend its functionality.
WPGraphQL – GraphQL API for WordPress
WPGraphQL is a powerful WordPress plugin that adds a GraphQL API layer to your site, allowing you to query content more efficiently and flexibly than with REST. GraphQL lets front-end apps (React, Vue, Next.js, etc.) request only the data they need with a single request, reducing payload and improving performance. WPGraphQL supports posts, pages, menus, custom post types, taxonomies, user data, and more — and integrates well with popular plugins like ACF, WooCommerce (via extensions), and Yoast SEO (with add-ons). Developers building headless WordPress applications or custom front-end experiences benefit from strong schema control, type inspections, and the ability to extend the API with custom fields and types.
Features
Adds a GraphQL API to WordPress Fine-grained data queries Extensible schema for custom content Integrates with popular plugins Ideal for headless sites & JAMstackREST API Toolbox – Modify REST API Responses
REST API Toolbox gives you simple controls to customize and extend the WordPress REST API without coding. With it, you can add or remove fields from REST responses, expose custom post types and taxonomies, and adjust settings per endpoint. This plugin is perfect when building apps or front-end experiences that require tailored JSON responses, allowing you to shape API data for performance and relevance. You can also clean up unnecessary fields to reduce payload and improve client performance. Whether building headless themes, mobile apps, or third-party integrations, REST API Toolbox makes the WordPress REST API more flexible and efficient.
Features
Add or remove fields in REST responses Support custom post types & taxonomies User-friendly field controls Optimize API responses for clients No coding requiredJWT Authentication for WP REST API – Secure REST Tokens
JWT Authentication for WP REST API adds JSON Web Token (JWT) based authentication to your WordPress REST API, enabling secure login and token validation for headless apps, mobile clients, and external services. Once configured, clients can request a token by supplying credentials and then access protected endpoints using that token. JWT keeps sessions stateless and secure, improving performance and scalability for APIs. Ideal for headless or decoupled WordPress sites where users log in via front-end frameworks (React, Vue, etc.), this plugin follows widely accepted industry standards and simplifies authentication workflows without cookies or PHP sessions.
Features
Adds JWT authentication support Token-based login & access Secure REST API access Stateless requests (no cookies) Ideal for headless apps & SPAsWP REST API Controller – Manage REST Endpoints
WP REST API Controller gives you a user-friendly interface to manage which post types, fields, taxonomies, and metadata are exposed via the WordPress REST API. You can turn endpoints on or off and control field visibility with role-based settings. This is helpful when building headless sites or decoupled front-ends, ensuring your REST API only serves relevant data and improves performance. The plugin avoids custom code and lets you refine API responses directly from the dashboard.
Features
Enable/disable REST endpoints Control field visibility Supports custom post types & taxonomies Dashboard interface (no code) Role-based permissionsHeadless Single Sign-On – Unified Auth for Headless WordPress
Headless Single Sign-On provides a seamless authentication experience when using a headless WordPress setup with external front-end apps. It allows users to log in once and stay authenticated across your headless app and WordPress backend. This improves user experience and simplifies account management without multiple login screens. The plugin handles token or session synchronization between decoupled frameworks and the WordPress REST API. Ideal for React, Vue, or Next.js headless projects where users need persistent login and secure access to protected resources.
Features
Unified authentication for headless apps Single sign-on (SSO) support Works with external front-ends Simplifies REST API auth flows Enhances user experienceHeadless WC – WooCommerce REST API Enhancer
Headless WC enhances the WooCommerce REST API for headless WooCommerce stores, making it easier to build custom storefronts with JavaScript frameworks like Next.js or Gatsby. It adds additional endpoints, fields, and filters so your front-end has access to product data, cart actions, checkout workflows, and account operations. This plugin bridges the gap between classic WooCommerce and headless commerce, enabling fully decoupled shopping experiences while keeping WooCommerce as the backend engine.
Features
Extended WooCommerce REST endpoints Product, cart, and checkout access Improved data payloads for headless apps Works with JS frameworks Enhances standard WooCommerce APIWPGetAPI – External API Integration Tool
WPGetAPI lets you connect your WordPress site to any external API without writing PHP code. You can create API connections via the dashboard, configure endpoints, add headers, and map responses to shortcodes or blocks. This is perfect when you need to fetch data from external services (weather, news, CRM, etc.) and display it in posts, pages, or templates. It supports authentication methods including API keys, OAuth, and custom headers, making it extremely flexible for working with third-party services and REST APIs on your WordPress site. Key Features: • • • • Link: https://wordpress.org/plugins/wpgetapi
Features
WPGetAPI – External API Integration Tool Create & manage API connections Supports API keys & OAuth Map responses to shortcodes/blocks No coding neededCustom WP REST API – Build Custom Endpoints
Custom WP REST API is designed for developers and site builders who want to add custom endpoints to WordPress without complex coding. You can define custom routes, response structures, and query parameters to serve tailored JSON data. This simplifies building headless front-ends and integrations with other apps or services. You can expose exactly the data you need — whether custom post types, meta fields, or third-party data — with clear control over permissions and output formats.
Features
Create custom REST routes Define structured JSON responses Control permissions & fields Works with custom post types Great for headless front-end appsWP REST Yoast Meta – Expose SEO Metadata
WP REST Yoast Meta adds Yoast SEO metadata (such as meta titles, descriptions, and focus keywords) to WordPress REST API responses. This is especially useful in headless WordPress sites where you need SEO data for pages and posts on the front end. Without this plugin, the default REST API doesn’t include Yoast fields, making it harder to build fully optimized headless experiences. With this extension, you can fetch SEO titles and descriptions via API and inject them into your custom front-end, improving structured data and search engine friendliness.
Features
Adds Yoast SEO meta to REST API Supports titles & descriptions Focus keyword and other Yoast fields Works with posts & pages Essential for headless SEOOAuth2 Provider – WordPress OAuth Server
OAuth2 Provider turns your WordPress site into a secure OAuth2 server, allowing other applications to authenticate using standardized OAuth flows. This improves security when integrating mobile apps, external services, or headless front-ends that require secure, token-based access to protected REST endpoints. The plugin supports token issuance, scopes, refresh tokens, and authorization codes, giving developers full control over access permissions. Usable for enterprise applications, SaaS integrations, or any scenario where secure third-party access is needed, it follows modern authentication best practices.
Features
Implements OAuth2 server in WordPress Token and refresh token support Scopes and permissions control Secure API authentication Ideal for third-party integrationsConclusion
The world of web development is rapidly evolving. Modern applications demand flexible APIs, decoupled architectures, and frontend experiences that load fast and feel seamless. Headless WordPress—where the CMS runs separately from the frontend—is one of the most important trends in 2026, and the REST API is the engine that powers it.
The REST API is now a core part of WordPress, enabling developers to fetch posts, pages, media, users, and custom content in JSON format. But while the default API is powerful, most real-world applications require extensions—such as additional data fields, better authentication, caching, or custom endpoints customized for your app’s needs. That’s where REST API and headless plugins become essential.
Free REST API and headless plugins provide developers with tools that help bridge the gap between WordPress’s backend and modern frontend frameworks. Whether you’re building a static site with Gatsby, a single-page app with React or Vue, or a mobile app using React Native or Flutter, these plugins make the WordPress backend more flexible, secure, and easier to consume.
