---
title: "Channel3 UCP catalog profile (versioned)"
method: GET
path: "/.well-known/ucp/{version}"
tags: ["ucp-well-known"]
---

# Channel3 UCP catalog profile (versioned)

`GET /.well-known/ucp/{version}`

Return the catalog UCP profile for a specific protocol version.

## Path parameters

- `version` string, required

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/channel3-ai/apis/fastapi.md) · [All operations](https://skmtc.net/channel3-ai/apis/fastapi/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/channel3-ai/fastapi/revisions/981d371bd83e/schema)