Agent via UCP

If your agent already supports UCP, connect it to Channel3’s global catalog for product search and lookup across stores.

1. Install the UCP CLI

npm install -g @shopify/ucp-cli

The CLI is optional for your agent, but it is the fastest way to discover and test the Channel3 UCP profile.

2. Discover and configure the catalog

Channel3 hosts its profile at ucp.trychannel3.com, exposing the same catalog as the REST API through UCP tools.

ucp discover --business https://ucp.trychannel3.com --format json
ucp profile init --name channel3 --catalog https://ucp.trychannel3.com --activate

Your runtime connects to https://ucp.trychannel3.com/mcp. The profile provides search_catalog, lookup_catalog, and get_product.

3. Test a search

Search works on the Anonymous tier, so you can try it without an API key.

ucp catalog search \
  --set /query='running shoes' \
  --set '/pagination/limit=5' \
  --format json

The response contains matching products, offers, and a pagination cursor. See the UCP quickstart for curl examples too.

4. Add Token-tier authentication

For production traffic, higher limits, and monetized buy links, create an API key and send it on every catalog request.

export CHANNEL3_API_KEY="ch3_live_..."

ucp catalog search \
  --header "x-api-key: $CHANNEL3_API_KEY" \
  --set /query='running shoes' \
  --set '/pagination/limit=5' \
  --format json

Buy URLs are attributed to you, so commissions from partner brands can apply.

5. Enable your agent

Point your UCP-compatible agent at the Channel3 profile and let it use the catalog tools:

Search Channel3 for running shoes under $150 that are in stock. Compare the
best options and include the buy link for each.

Use UCP when your agent specifically needs the UCP profile and tool shape. For most agents, MCP is simpler. Learn more in the UCP catalog overview.

Getting Started

Make a Search

Get Product Data

Pricing + Commissions

Build

Integrate

FAQ

1. Install the UCP CLI

2. Discover and configure the catalog

3. Test a search

4. Add Token-tier authentication

5. Enable your agent

​1. Install the UCP CLI

​2. Discover and configure the catalog

​3. Test a search

​4. Add Token-tier authentication

​5. Enable your agent

1. Install the UCP CLI

2. Discover and configure the catalog

3. Test a search

4. Add Token-tier authentication

5. Enable your agent