Overview

Send and receive SMS or MMS messages in your applications with FreeClimb API.

Build an application that receives an SMS message and sends a reply in just five easy steps.

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Node

Java

Python

Explore FreeClimb's REST API, webhooks, and tutorials.

Use one of our explanation guides to better understand FreeClimb messaging concepts.

Implement two-factor authentication from a browser using SMS with FreeClimb.

Get details on error codes, possible causes, and solutions.