Requests for PHP is a humble HTTP request library. It simplifies how you interact with other sites and takes away all your worries.
Easy-to-use, but feature-rich client library for i-doit's JSON-RPC API
PHP library for making token-based API requests against Drip
This module is the REST API for phpList, powered by phpList 4
The simplest PHP Wrapper for Twitter API v1.1 calls
PHP implementation of the Stock APIs
Implementation of an API application using the Phalcon Framework