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Capstone logoCapstone product data API

Structured Capstone product data for developers building search, recommendations, and AI shopping agents.

1,299 products
Sample prices £4–£104

Agentic commerce demo

Try a Capstone-only AI shopping agent

This demo uses a constant Capstone filter and tells the assistant it represents Capstone only. Developers can use the same pattern to build brand-scoped shopping agents, product search, and recommendation flows.

Do you work at Capstone?

Looking to drive more AI sales? Channel3 can help Capstone surface more accurately and frequently on AI shopping platforms. No technical work required on your end. Most teams get set up in less than 10 minutes and see results same week.

Drive more AI sales
C3

Hello! I'm an AI shopping assistant powered by the Channel3 API, and I'm scoped to Capstone products.

Find any Capstone product with one easy endpoint

Start with 1,000 free searches every month.

curl https://api.trychannel3.com/v1/search \
  -H "x-api-key: $CHANNEL3_API_KEY" \
  -H "content-type: application/json" \
  -d '{
  "query": "Capstone products",
  "filters": {
    "brand_ids": [
      "NYJA"
    ]
  },
  "limit": 20
}'
from channel3_sdk import Channel3

client = Channel3()

products = client.search.perform(
    query="Capstone products",
    filters={"brand_ids": ["NYJA"]},
    limit=20,
)
import Channel3 from "@channel3/sdk";

const client = new Channel3();

const products = await client.search.perform({
  query: "Capstone products",
  filters: {
    brand_ids: ["NYJA"],
  },
  limit: 20,
});

What the product data includes

Normalized product titles

Clean, comparable titles across merchants and storefronts.

Brand and categories

Stable identifiers for filtering, deduplication, and analytics.

Images and product metadata

Hero images, product IDs, category signals, and merchant context.

Live prices and availability

Current offer data so agents do not recommend stale products.

Merchant URLs

Direct product links from retailers and marketplaces.

Affiliate-ready offers

Monetizable links and commission-aware offer selection where available.

Sample Capstone products

A preview of the products available through the Channel3 Capstone product data API.

See And Say Tagalog (learn A Language!)
Capstone
See And Say Tagalog (learn A Language!)
£15
Beer & Bread
Capstone
Beer & Bread
$35
Age Of Rail Allegheny & La Pampa
Capstone
Age Of Rail Allegheny & La Pampa
$12
Clinic: Expansion 2
Capstone
Clinic: Expansion 2
$50
Siege Of Vienna - Tactics Promo Cards
Capstone
Siege Of Vienna - Tactics Promo Cards
$5
Imperial Steam Promo
Capstone
Imperial Steam Promo
$7
Renature
Capstone
Renature
$50
Navy Size - Matte/matte
Capstone
Navy Size - Matte/matte
$4
Wandering Towers: Mini-spell Expansion #2
Capstone
Wandering Towers: Mini-spell Expansion #2
$5
Red Size
Capstone
Red Size
$4
Ride The Rails: France & Germany Expansion
Capstone
Ride The Rails: France & Germany Expansion
$12
Pagan Ancestors Content Pack 4
Capstone
Pagan Ancestors Content Pack 4
$20
Sumaya Solves The Ice Thief Problem
Capstone
Sumaya Solves The Ice Thief Problem
£6
Evergreen Size
Capstone
Evergreen Size
$4
Meltwater
Capstone
Meltwater
$35
Tea Garden
Capstone
Tea Garden
$60
Pagan: Fate Of Roanoke - Starter Bundle
Capstone
Pagan: Fate Of Roanoke - Starter Bundle
$104
Galileo Galilei
Capstone
Galileo Galilei
$60
Galileo Bundle
Capstone
Galileo Bundle
$97
Sky Size
Capstone
Sky Size
$4
Watergate
Capstone
Watergate
$35
Angel's Share New Cards Promo
Capstone
Angel's Share New Cards Promo
$5
Ark Nova
Capstone
Ark Nova
$75
Aquaria – Microflora Dial Promo
Capstone
Aquaria – Microflora Dial Promo
$7

A structured response for apps and agents

Results are ready for search interfaces, ranking pipelines, product cards, and AI agent tool calls.

{
  "products": [
    {
      "id": "prod_01H...",
      "title": "Capstone sample product",
      "brand": {
        "name": "Capstone"
      },
      "category_ids": [
        "xoN"
      ],
      "images": [
        {
          "url": "https://..."
        }
      ],
      "offers": [
        {
          "merchant_domain": "example.com",
          "price": 128,
          "currency": "USD",
          "availability": "InStock",
          "url": "https://..."
        }
      ]
    }
  ],
  "next_page_token": "eyJwYWdlIjoyfQ..."
}

Common use cases

AI shopping agents

Let users ask for products naturally, then return structured candidates your agent can rank and explain.

Affiliate search

Build product discovery experiences with merchant URLs and affiliate-aware offer data.

Marketplace search

Power fast, filterable product search without maintaining retailer-specific scraping pipelines.

Catalog enrichment

Map sparse product records to normalized brands, categories, images, and live merchant offers.

Frequently asked questions

How do I find Capstone product data?

Use the Channel3 search endpoint with a brand filter. The response includes normalized products, images, prices, availability, and merchant URLs.

Can I use this data in an AI shopping agent?

Yes. Channel3 is designed for product discovery workflows where an app or agent needs structured product results from many merchants.

Do results include price and stock?

Product offers include price, currency, availability, merchant domain, and product URLs when those fields are available.

Can I monetize product links?

Channel3 returns merchant URLs and can use affiliate-ready offer selection where commission data is available.

Explore product data categories

Browse broader product data APIs related to brand-scoped product search and AI shopping agent workflows.

More brand product data APIs

Compare this brand feed with other large brand catalogs available through Channel3.

Build with Capstone product data

Start with 1,000 free searches every month. No credit card required.

Every product on the internet, in one API.

Get paid to build the future of shopping.

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In-store

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channel 2

Online

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channel 3

Agentic Commerce

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