> ## Documentation Index
> Fetch the complete documentation index at: https://arize-ax.mintlify.site/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Migrate

> Guides for migrating historical traces, datasets, and prompts from Phoenix, Braintrust, Langfuse, and LangSmith into Arize AX.

Hands-on guides for moving to Arize AX from another observability platform: importing historical traces, datasets, and prompts, then continuing to trace in AX.

<CardGroup cols={2}>
  <Card title="Migrate from Phoenix" href="/docs/ax/cookbooks/migrate/migrate-from-phoenix">Move historical Phoenix data and new application traces into Arize AX.</Card>
  <Card title="Migrate from Braintrust" href="/docs/ax/cookbooks/migrate/migrate-from-braintrust">Import historical Braintrust logs into Arize AX with a coding-agent skill, then continue tracing in AX.</Card>
  <Card title="Migrate from Langfuse" href="/docs/ax/cookbooks/migrate/migrate-from-langfuse">Import historical Langfuse observations into Arize AX with a coding-agent skill, then continue tracing in AX.</Card>
  <Card title="Migrate from LangSmith" href="/docs/ax/cookbooks/migrate/migrate-from-langsmith">Import historical LangSmith runs into Arize AX with a coding-agent skill, then continue tracing in AX.</Card>
</CardGroup>