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National Marker logoNational Marker product data API

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

Agentic commerce demo

Try a National Marker-only AI shopping agent

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

Do you work at National Marker?

Looking to drive more AI sales? Channel3 can help National Marker 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 National Marker products.

Find any National Marker 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": "National Marker products",
  "filters": {
    "brand_ids": [
      "9kU5"
    ]
  },
  "limit": 20
}'
from channel3_sdk import Channel3

client = Channel3()

products = client.search.perform(
    query="National Marker products",
    filters={"brand_ids": ["9kU5"]},
    limit=20,
)
import Channel3 from "@channel3/sdk";

const client = new Channel3();

const products = await client.search.perform({
  query: "National Marker products",
  filters: {
    brand_ids: ["9kU5"],
  },
  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 National Marker products

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

National Marker Reflective "slow" Warning Traffic Control Sign, 24" X 24", Aluminum (tm120k)
National Marker
National Marker Reflective "slow" Warning Traffic Control Sign, 24" X 24", Aluminum (tm120k)
$122
Label, Graphic For Corrosive / Acid Hazard, 4in Dia, Adhesive Vinyl
National Marker
Label, Graphic For Corrosive / Acid Hazard, 4in Dia, Adhesive Vinyl
$21
Danger, Do Not Start Engine, 10x14, .040 Aluminum
National Marker
Danger, Do Not Start Engine, 10x14, .040 Aluminum
$42
National Marker Reflective "stop" Regulatory Traffic Sign, 24" X 24", Aluminum (tm13h)
National Marker
National Marker Reflective "stop" Regulatory Traffic Sign, 24" X 24", Aluminum (tm13h)
$51
No Smoking, 10x14, .040 Aluminum, Caution Sign
National Marker
No Smoking, 10x14, .040 Aluminum, Caution Sign
$32
Asbestos Cancer And Lung Disease. . . (bilingual), 20x14, Rigid Plastic, Danger Sign
National Marker
Asbestos Cancer And Lung Disease. . . (bilingual), 20x14, Rigid Plastic, Danger Sign
$24
Caution Signs Wear Hard Hat 10x14 .040 Aluminum
National Marker
Caution Signs Wear Hard Hat 10x14 .040 Aluminum
$42
Peligro, Almacenamiento De Quimicos, 10x14, .040 Aluminum, Danger Sign
National Marker
Peligro, Almacenamiento De Quimicos, 10x14, .040 Aluminum, Danger Sign
$42
Slow Down Pedestrian Traffic, 10x14, Rigid Plastic, Caution Sign
National Marker
Slow Down Pedestrian Traffic, 10x14, Rigid Plastic, Caution Sign
$32
Think, Make Every Move A Safe One, 10x14, .040 Aluminum
National Marker
Think, Make Every Move A Safe One, 10x14, .040 Aluminum
$42
Think Safety, Our Aim No Accidents, 10x14, .040 Aluminum, Information Sign
National Marker
Think Safety, Our Aim No Accidents, 10x14, .040 Aluminum, Information Sign
$32
Not An Exit, 7x10, .040 Aluminum, Notice Sign
National Marker
Not An Exit, 7x10, .040 Aluminum, Notice Sign
$27
Accident Prevention Tags; Caution, Must Not Be Used, 6x3, Unrip Vinyl, 25/pk
National Marker
Accident Prevention Tags; Caution, Must Not Be Used, 6x3, Unrip Vinyl, 25/pk
$34
Empty Cylinders Do Not Use, 10x14, .040 Aluminum
National Marker
Empty Cylinders Do Not Use, 10x14, .040 Aluminum
$30
Covid-19 Stop The Spread Of Germs
National Marker
Covid-19 Stop The Spread Of Germs
$33
Danger Signs; Falling Materials, 20x28, .040 Aluminum
National Marker
Danger Signs; Falling Materials, 20x28, .040 Aluminum
$65
Accident Prevention Tags; Out Of Order, 6" X 3", .015 Mil Unrip Vinyl, 25 Pk W/ Grommet
National Marker
Accident Prevention Tags; Out Of Order, 6" X 3", .015 Mil Unrip Vinyl, 25 Pk W/ Grommet
$34
Danger, Asbestos Cancer And Lung Disease Hazard Authorized Personnel Only, 10x14, .040 Aluminum, Danger Sign
National Marker
Danger, Asbestos Cancer And Lung Disease Hazard Authorized Personnel Only, 10x14, .040 Aluminum, Danger Sign
$32
Accident Prevention Tags; Danger Do Not Operate (bilingual), 6x3, Unrip Vinyl, 25/pk W/ Grommet
National Marker
Accident Prevention Tags; Danger Do Not Operate (bilingual), 6x3, Unrip Vinyl, 25/pk W/ Grommet
$34
Lockout Tags; Lockout, Do Not Operate Equipment Locked Out, 6" X 3", Unrippable Vinyl, 25/pack
National Marker
Lockout Tags; Lockout, Do Not Operate Equipment Locked Out, 6" X 3", Unrippable Vinyl, 25/pack
$36
15" X 15" X 15", 32 Ect, Shipping Boxes, 25/bundle (cw57878)
National Marker
15" X 15" X 15", 32 Ect, Shipping Boxes, 25/bundle (cw57878)
$66
Notice Signs; Keep Door Closed At All Times, Graphic, 10x14, .040 Aluminum
National Marker
Notice Signs; Keep Door Closed At All Times, Graphic, 10x14, .040 Aluminum
$24
Caution Signs; Lead Hazard Do Not Enter Unless Authorized, 10x14, .040 Aluminum
National Marker
Caution Signs; Lead Hazard Do Not Enter Unless Authorized, 10x14, .040 Aluminum
$32
Danger Signs; Non-potable Water Do Not Drink (bilingual W/graphic), 10x18, Rigid Plastic
National Marker
Danger Signs; Non-potable Water Do Not Drink (bilingual W/graphic), 10x18, Rigid Plastic
$23

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": "National Marker sample product",
      "brand": {
        "name": "National Marker"
      },
      "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 National Marker 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 National Marker 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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