# How to Connect Your Twilio Agent to External APIs in Node.js

DevFeed: [How to Connect Your Twilio Agent to External APIs in Node.js](<https://devfeed.tech/articles/how-to-connect-your-twilio-agent-to-external-apis-in-node-js-26245.md>)

Original publisher: [Read original article](<https://www.twilio.com/en-us/blog/developers/tutorials/product/how-to-connect-twilio-agent-to-external-apis-nodejs>)

Author: Dhruv Patel, Amanda Lange

Published: 2026-09-14T00:00:00Z

Content type: tutorial

Language: en

Sources: [Twilio Blog](<https://devfeed.tech/sources/twilio-blog.md>)

Topics: [AI Agent](<https://devfeed.tech/topics/ai-agent.md>), [Node.js](<https://devfeed.tech/topics/node-js.md>), [voice ai](<https://devfeed.tech/topics/voice-ai.md>), [REST API](<https://devfeed.tech/topics/rest-api.md>), [OpenAI](<https://devfeed.tech/topics/openai.md>), [Express](<https://devfeed.tech/topics/express.md>)

Tags: [agent](<https://devfeed.tech/tags/agent.md>), [ai](<https://devfeed.tech/tags/ai.md>), [ai-agent](<https://devfeed.tech/tags/ai-agent.md>), [developer-insights](<https://devfeed.tech/tags/developer-insights.md>), [environment-variables](<https://devfeed.tech/tags/environment-variables.md>), [node-js](<https://devfeed.tech/tags/node-js.md>), [openai](<https://devfeed.tech/tags/openai.md>), [rest-apis](<https://devfeed.tech/tags/rest-apis.md>), [visual-studio-code](<https://devfeed.tech/tags/visual-studio-code.md>), [voice](<https://devfeed.tech/tags/voice.md>)

## AI overview

This tutorial explains how to build a voice-enabled AI agent in Node.js with Twilio Conversation Relay and OpenAI. The agent uses LLM-driven tool calling to retrieve live data and take actions through an external REST API.

## Source excerpt

Build a voice-enabled AI agent in Node.js with Twilio Conversation Relay and OpenAI to dynamically fetch live data from external REST APIs.