Description

This plugin provides Anthropic integration for the PHP AI Client SDK. It enables WordPress sites to use Anthropic’s Claude models for text generation and other AI capabilities.

Features:

Text generation with Claude models
Function calling support
Extended thinking support
Automatic provider registration

Available models are dynamically discovered from the Anthropic API, including Claude models for text generation with multimodal input support.

Requirements:

PHP 7.4 or higher
For WordPress 6.9, the wordpress/php-ai-client package must be installed
For WordPress 7.0 and above, no additional changes are required
Anthropic API key

Installation

Upload the plugin files to /wp-content/plugins/ai-provider-for-anthropic/
Activate the plugin through the ‘Plugins’ menu in WordPress
Configure your Anthropic API key via the ANTHROPIC_API_KEY environment variable or constant

FAQ

How do I get an Anthropic API key?: Visit the Anthropic Console to create an account and generate an API key.
Does this plugin work without the PHP AI Client?: No, this plugin requires the PHP AI Client plugin to be installed and activated. It provides the Anthropic-specific implementation that the PHP AI Client uses.

Reviews

There are no reviews for this plugin.

Contributors & Developers

“AI Provider for Anthropic” is open source software. The following people have contributed to this plugin.

Contributors

WordPress.org

Changelog

1.0.4 – 2026-08-17

Changed

Bumped WordPress tested-up-to version 7.1 #35.

Fixed

Corrected model metadata for Claude Opus 4.7 and later, including Claude 5 models, so unsupported sampling parameters are no longer advertised during automatic model selection #25.
Normalized empty tool-call arguments as JSON objects, preventing Anthropic API errors when replaying tool calls that accept no arguments #23.

1.0.3

Add a provider logo to the metadata if the client version > 1.3.0 (#18).

1.0.2

Add plugin directory assets by @shaunandrews in https://github.com/WordPress/ai-provider-for-anthropic/pull/10
Add ‘connector’ tag to readme.txt by @jeffpaul in https://github.com/WordPress/ai-provider-for-anthropic/pull/12
Add provider description by @felixarntz in https://github.com/WordPress/ai-provider-for-anthropic/pull/13

1.0.1

Initial release of the plugin
Support for Claude text generation models
Function calling support
Extended thinking support

1.0.0

Initial release of the Composer package