🇺🇸Marketing & Advertising in United States

9 marketing & advertising providers in United States, publishing 37 APIs.

9 providers 37 published APIs 43 indexed documents

Marketing & Advertising in United States — 9 providers on the APIs.io network sit in both cohorts, and between them they publish 37 indexed APIs.

6 of the 9 publish at least one machine-readable API; 3 publish nothing indexed at all. That split is the first thing worth reading here — a vertical can be well represented in a market and still have almost no programmable surface.

By Kin Score band: 6 emerging, 1 developing, 1 thin, and 1 minimal.

Leading by rating: Capital One, Marriott International, Wyndham Hotels & Resorts, American Express, Amtrak, Uplight, and 3 more.

Country membership is exact-tag only. A provider lands in United States when one of its own top-level tags names the country — there is no headquarters signal on the country axis, unlike the region axis which reads tag, provider-name pattern, and stated HQ. So this cell is a floor, not a census, and it understates by construction — a marketing & advertising company headquartered in United States that never tags itself is counted nowhere on this axis. The region cuts read the wider signal set and will generally hold more.

Providers (9)

Provider	Description	APIs	Rating
Capital One	Capital One is a US money-center bank and financial services company offering credit cards, checking and savings accounts, loans, and auto financing. Through the Capital One Dev...	14	developing
Marriott International	Marriott International is the world's largest hotel group by room count, headquartered in Bethesda, Maryland, United States, operating and franchising roughly thirty brands from...	6	thin
Wyndham Hotels & Resorts	Wyndham Hotels & Resorts, Inc. (NYSE: WH) is the world's largest hotel franchising company by number of properties, with over 8,300 affiliated hotels and approximately 869,000 r...	3	emerging
American Express	American Express is a globally integrated payments company and card network that offers charge and credit cards, merchant acquiring, corporate payments, travel, and Membership R...	12	emerging
Amtrak	Amtrak (the National Railroad Passenger Corporation) is the federally chartered operator of the United States national intercity passenger rail network, headquartered in Washing...	1	emerging
Uplight	Uplight is a Boulder, Colorado energy technology company formed in 2019 from the merger of Tendril and Simple Energy and expanded through the acquisitions of EnergySavvy, FirstF...	1	emerging
JetBlue	JetBlue Airways (IATA code B6) is a New York-headquartered low-cost United States carrier flying across the U.S., Caribbean, Latin America and Europe, with hubs and focus cities...	0	emerging
Choice Hotels	Choice Hotels International (NYSE: CHH) is a United States hotel franchisor headquartered in North Bethesda, Maryland, operating 7,575 hotels with 656,825 rooms open across 49 s...	0	emerging
Chowbus	Chowbus is a Chicago-headquartered restaurant technology company founded in 2016 by Linxin Wen and Suyu Zhang. It began as an online food ordering, payment and delivery marketpl...	0	minimal

Indexed API documents (43)

Two numbers, both real: these providers publish 37 APIs as their own documents, which the catalog indexes split one-per-resource into 43 documents.

Other industries in United States

Banking & Open Banking 85 Financial Services 81 Data & Analytics 72 Education & EdTech 47 Energy 29 Healthcare 29 Digital Health & Telehealth 27 Government & Public Sector 26 Insurance 21 Venture Capital & Investing 20 Climate & Sustainability 17 Cybersecurity & Identity 17 All of United States →

Marketing & Advertising elsewhere

North America 176 Europe 58 Greater China 24 France & Iberia 18 United Kingdom & Ireland 17 DACH (Germany · Austria · Switzerland) 14 Middle East 14 India & South Asia 11 Latin America 11 Southeast Asia 11 Japan & Korea 8 Australia & New Zealand 7 All of Marketing & Advertising →

This page is the intersection of two independently computed cohorts: United States and Marketing & Advertising. A provider appears here only when it is already a member of both. United States membership is matched on tag, so this is a floor rather than a census — coverage gaps show up here as small numbers, not as absent pages.

Work with this as data

Every country here is available over the APIs.io API and to AI agents over MCP. Countries is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for countries

3 MCP tools reach this

apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

Search the catalog

curl "https://apis.io/api/v1/search?q=united-states-marketing-advertising&limit=10"

Everything under a tag

curl "https://apis.io/api/v1/tags/united-states-marketing-advertising"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

🇺🇸Marketing & Advertising in United States

Providers (9)

Indexed API documents (43)

Capital One Account Lookup API

Capital One Authorizations API

Capital One Credit Offers API

Capital One Customer Transactions

Capital One Data Protection and Client Authentication Public Key Sharing API

Capital One Digital Auto Financing Credit Application API

Capital One Enhanced Decisioning Data API

Capital One In-Store Credit Card Payments API

Capital One POS Credit Card Application API

Capital One Partner Account Summary API

Capital One Pre-Application Orchestrator API

Capital One Real-Time Proactive Prescreen API

Capital One Retrieve Consumer Bank Products API

Capital One Shop with Rewards API

Marriott International Actuator API

Marriott International Auth API

Marriott International Data API

Marriott International Data Collection Event API

Marriott International FreedomPay Freeway Service API

Marriott International Guest Validation API

Marriott International Internet Purchase Update API

Marriott International Landing Page API

Marriott International Loyalty API

Marriott International Post Preview Submit API

Marriott International Retrieve Configs Monitored By Config Watcher API

Marriott International Status API

Wyndham Business WordPress REST API

Wyndham Business WordPress MCP Server (OAuth-gated)

Wyndham Hotel Development WordPress REST API

American Express Token Service (AETS) API

American Express Enhanced Authorization (EA)

American Express Account and Transaction API

American Express Confirmation of Funds PSD2 API

American Express @ Work B2B API

American Express Card On-Demand

American Express Pay with Points

American Express API-Based Payment Platform

American Express Payment Account Reference (PAR)

American Express Smart Offer Partnership

American Express AMEX Account Connect

American Express Network Loyalty Platform

Amtrak GTFS Schedule Feed

Uplight Developer Platform API