> ## Documentation Index
> Fetch the complete documentation index at: https://developers.telnyx.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Development

> Essential tools, SDKs, and resources for building with Telnyx APIs and services.

## Build with confidence

From authentication utilities to multi-platform SDKs, this section mirrors the
hands-on developer resources from our classic docs so you can build, test, and
ship with Telnyx even faster.

## What you’ll find here

> [card] [API fundamentals](https://developers.telnyx.com/docs/development/api-fundamentals.md)
>
> Learn how to create and secure API keys, handle webhooks, and stay within
> rate limits across every Telnyx service.
>
> **Dig into API fundamentals →**

> [card] [Server-side SDKs](https://developers.telnyx.com/docs/development/sdk/node.md)
>
> Official SDKs for Node.js, Python, PHP, Java, Ruby, and Go to simplify
> backend integrations and speed up prototyping.
>
> **Browse SDKs →**

> [card] [WebRTC SDKs](https://developers.telnyx.com/docs/development/webrtc/js-sdk/tutorials/make-your-first-call.md)
>
> Build voice and video experiences with JavaScript, React, iOS, and Android
> SDKs plus detailed class references.
>
> **Explore WebRTC →**

> [card] [Testing & debugging](https://developers.telnyx.com/docs/voice/webrtc/troubleshooting/detail-records.md)
>
> Troubleshoot with call detail records, WebRTC debugging steps, and logging
> best practices.
>
> **Start debugging →**

> [card] [Migration guides](https://developers.telnyx.com/docs/development/migration/call-control-migration-guide.md)
>
> Step-by-step playbooks for migrating messaging, Call Control, and Twilio
> workloads onto Telnyx.
>
> **Plan your migration →**

## Working on AI agents?

Spin up local or remote MCP servers so your AI assistants can query Telnyx APIs
securely—check out the [MCP quickstarts](https://developers.telnyx.com/docs/development/mcp/local-mcp.md).

## Need product-specific guides?

Looking for AI, Voice, or Messaging docs? Explore our product tabs above.