# Trace & Evaluate your Agent with Arize Phoenix

DevFeed: [Trace & Evaluate your Agent with Arize Phoenix](<https://devfeed.tech/articles/trace-evaluate-your-agent-with-arize-phoenix-7479.md>)

Original publisher: [Read original article](<https://huggingface.co/blog/smolagents-phoenix>)

Author: Sri Chavali; John Gilhuly; Aymeric Roucher

Published: 2025-02-28T00:00:00Z

Content type: tutorial

Language: en

Sources: [Hugging Face - Blog](<https://devfeed.tech/sources/hugging-face-blog.md>)

Topics: [phoenix](<https://devfeed.tech/topics/phoenix.md>), [agent observability](<https://devfeed.tech/topics/agent-observability.md>), [smolagents](<https://devfeed.tech/topics/smolagents.md>), [OpenTelemetry](<https://devfeed.tech/topics/opentelemetry.md>), [tracing](<https://devfeed.tech/topics/tracing.md>), [telemetry](<https://devfeed.tech/topics/telemetry.md>), [Human-AI evaluation](<https://devfeed.tech/topics/human-ai-evaluation.md>)

Tags: [agent](<https://devfeed.tech/tags/agent.md>), [agents](<https://devfeed.tech/tags/agents.md>), [debug](<https://devfeed.tech/tags/debug.md>), [evaluation](<https://devfeed.tech/tags/evaluation.md>), [free](<https://devfeed.tech/tags/free.md>), [hosting](<https://devfeed.tech/tags/hosting.md>), [hugging-face](<https://devfeed.tech/tags/hugging-face.md>), [instrumentation](<https://devfeed.tech/tags/instrumentation.md>), [opentelemetry](<https://devfeed.tech/tags/opentelemetry.md>), [performance](<https://devfeed.tech/tags/performance.md>), [phoenix](<https://devfeed.tech/tags/phoenix.md>), [smolagents](<https://devfeed.tech/tags/smolagents.md>), [telemetry](<https://devfeed.tech/tags/telemetry.md>), [tracing](<https://devfeed.tech/tags/tracing.md>), [visualization](<https://devfeed.tech/tags/visualization.md>)

## AI overview

This tutorial explains how to trace, evaluate, and debug a smolagents agent with Arize Phoenix. It demonstrates an agent powered by the Hugging Face Hub Serverless API that searches for Google share-price data from 2020 to 2024 and creates a line graph, then instruments the workflow with OpenTelemetry and OpenInference. Phoenix can run locally, as a self-hosted application, or on Hugging Face Spaces.

## Source excerpt

We're on a journey to advance and democratize artificial intelligence through open source and open science.