Build an AI Assistant without writing any code

AI isn’t just for developers anymore. With Telnyx’s new no-code AI Assistant Builder, anyone on your team—from product managers to operations leads—can create powerful, Voice AI assistants that handle customer calls, automate tasks, and scale workflows. No training data or prompt engineering is needed—just tell the assistant what to do, and Telnyx takes care of the rest.

The shift from code-heavy integrations to intuitive, no-code interfaces is a major step toward democratizing AI, and it comes at the perfect time. Businesses face growing customer expectations and shrinking response times, and automation is no longer optional. With Telnyx, you can build an AI assistant in minutes and start solving real problems right away.

What is the no-code AI Assistant Builder?

Telnyx’s AI Assistant Builder is a no-code interface that lets users of all abilities create and manage voice AI agents with zero programming knowledge. At its core, the platform abstracts away the complexity of large language models (LLMs), speech-to-text, and voice routing, and exposes an intuitive interface where users can define behavior in plain language.

You start by giving your assistant a name, instructions on how it should act, a greeting for it to verbalize, and a description of its role. This is all natural language—no YAML files, no DSLs, no prompt templates. Under the hood, Telnyx generates a secure, hosted agent powered by an LLM and optimized for telephony use cases. There’s no need to manage model infrastructure, fine-tune behavior with reinforcement learning, or handle automatic speech recognition (ASR) and natural language understanding (NLU) pipelines manually.

You can test your assistant in real time using the in-browser call simulator which replicates an actual phone interaction. This lets you validate behavior and tune instructions on the fly, without needing to deploy a test environment or rely on staging infrastructure.

What powers your AI Assistant?

While the front end of the AI Assistant Builder is built for simplicity, the engine behind it is architected for performance, flexibility, and scale. At the heart of every AI assistant is a hosted, voice-optimized large language model that understands context, manages multi-turn conversations, and performs actions based on user input. These agents are designed specifically for voice interactions—meaning they’re latency-tuned, streaming-aware, and integrated natively with Telnyx’s Voice stack. That means conversations sound natural and responsive, with quick turnarounds and high-quality, human-like synthesis.

\ With Telnyx, you don’t need to train or host the model yourself, unlike DIY solutions that require integrating with third-party APIs or deploying your own model stack. You define what the agent should do, and we manage everything else from model updates to memory handling to failover logic.

Connecting your AI assistant to your own tooling

A voice assistant becomes truly useful when it can do more than just hold a conversation. Telnyx’s no-code AI Assistant Builder includes easy-to-configure connection points, if deserted, that let your agent interact with the rest of your tooling.

You can set up call transfers to other phone numbers, ensuring seamless handoffs to human agents or different departments. Assistants can also interface with calendar APIs to check availability and book appointments in real time. This is perfect for scheduling demos, consultations, or follow-ups during a live conversation. For other actions, you can configure webhooks to trigger workflows in external systems, such as logging a new support request or updating a CRM. These integrations don’t require any code, just the relevant endpoint and the data you want to pass through.

Why AI voice assistants are worth building

Voice is the most natural interface we have, and AI assistants allow teams to tap into that channel with a level of scale and intelligence that wasn’t possible before. By putting LLMs behind the phone line, you can offload routine calls, reduce wait times, and improve response quality without hiring or training new agents. AI assistants can qualify leads, answer frequently asked questions, route calls based on intent, or collect data for internal operations. Because they work 24/7, they’re always available when your customers need them.

Until now, building this kind of automation required a heavy lift, from writing custom code to integrating third-party APIs to managing telephony infrastructure to constantly fine-tuning performance. With Telnyx’s no-code builder, you get an AI-powered phone agent live in minutes, not months.

Build smarter voice automation with Telnyx

The Telnyx no-code AI Assistant Builder unveils a new way to think about voice automation—one where you don’t need to be an engineer to deploy advanced AI, and one where real business value is just a few clicks away.

Now that you understand how easy it is to spin up a fully functioning AI voice agent with natural conversation, real-time data integrations, and zero code, the question isn’t if you should build an AI-powered assistant, it’s what you’ll have it do first.

Whether you’re scaling support, automating sales calls, or powering internal operations, Telnyx gives you the tools to move fast, stay flexible, and build with confidence.