Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 12 Complete, well-documented, and agent-ready

Twilio Marketplace APIThe Marketplace API from Twilio — 8 operation(s) for marketplace.91.6 Hagglebee Posts APIPost classified ads to Hagglebee from an AI agent: submit a classified ad that runs 30 days for moderation ...84.3 Airwallex Platform APIThe Airwallex Platform API enables businesses to embed financial services into their products. Supports mer...83.8 Agoragentic Marketplace APIBrowse, search, and manage listings80.4 Relevance AI Marketplace APIThe marketplace API from Relevance AI — 28 operation(s) for marketplace.77.0 Microsoft Azure Marketplaces APIThe Marketplaces API from Microsoft Azure — 1 operation(s) for marketplaces.76.5 Azure DevOps Extension Management APIAPI for managing extensions installed in an Azure DevOps organization. Enables programmatic listing, instal...75.4 The Colony Marketplace APIThe marketplace API from The Colony — 9 operation(s) for marketplace.74.8 Zendesk Apps APIThe Zendesk Apps API lets you manage apps installed on your Zendesk account. It lists all public apps on th...71.2 Matomo Marketplace APIThe Marketplace API lets you manage your license key so you can download & install in one-click 69.0 Match It Up Marketplace APIThe marketplace API from Match It Up — 4 operation(s) for marketplace.68.6 IntegrationOS Marketplace APIThe Marketplace API from IntegrationOS — 5 operation(s) for marketplace.66.6

Strong 26 Solid coverage with minor gaps

Developing 50 Usable, with meaningful gaps to close

Thin 31 Limited public surface area

Fortellis PlatformFortellis is CDK Global's open automotive commerce platform — an API gateway, app marketplace, and develope...39.1 Magic Eden Marketplace APIGet information about Magic Eden's marketplace!38.8 Xata Marketplace APIOperations for linking user accounts to cloud marketplace subscriptions38.6 Wolt Order / Marketplace APIReceive and fulfill consumer marketplace orders in a POS/in-store system: accept, reject, mark ready, mark ...38.0 uShip API v2The core uShip marketplace API — a RESTful, hypermedia-driven JSON API over the shipment lifecycle: searchi...37.2 uShip Cars and Light Trucks APIThe vehicle-transport slice of the uShip API — listing creation, published rates, and booking for cars and ...37.2 uShip Integrator Users APIUser-management endpoints for integration partners — provisioning and managing the uShip user accounts an i...37.2 Discogs Marketplace APIMarketplace listings, orders, fees, price suggestions, and release stats.36.6 KW Marketplace Subscription & Metered Billing APIThe partner-facing surface behind the KW Marketplace, where vendors sell products to Keller Williams agents...36.0 Sage App Store Catalogue APIThe read-only JSON API behind 4Paradigm's Sage App Store — the model catalogue (62 AI models with version, ...36.0 Flipkart Marketplace Seller APIThe Flipkart Marketplace Seller API (v3) lets sellers and integration partners manage listings, orders, shi...35.7 QuickNode Marketplace Add-onsCatalog of opt-in add-on APIs (NFT API, Token API, DeFi API, Functions, etc.) attached to a QuickNode endpo...35.1 Qualia Connect and Marketplace APIProgrammatic access to Qualia's national network of technology-enabled independent title agents and Marketp...34.7 Unstoppable Domains Marketplace APIBrowse and search the Unstoppable Domains secondary marketplace. Retrieve paginated listings of domains ava...34.2 Cashfree Platforms APIAPI for marketplace and SaaS platform operators to onboard sub-merchants, split payments, manage settlement...34.0 AlayaMarket Marketplace APIREST API for the AlayaMarket staffing marketplace enabling supply and demand organizations to exchange shif...33.7 Reservoir Marketplace APIThe marketplace API from Reservoir — 7 operation(s) for marketplace.33.6 SmartRecruiters Assessment APIThe Assessment API allows customers to order assessment services available through the SmartRecruiters Mark...33.1 SuperRare Smart Contracts - The BazaarUnified marketplace and auction house smart contract on Ethereum that enables reserve-price auctions, sale ...32.0 PancakeSwap NFT Market SubgraphGraphQL subgraph for querying PancakeSwap NFT Market data on BNB Smart Chain, including NFT collections, li...31.9 Zentail Open APIZentail's Open API for building custom sales-channel, inventory, and fulfillment integrations and running b...31.7 Freshdesk App SDKThe Freshdesk App SDK allows developers to build custom applications that extend the functionality of the F...30.7 JetBrains Marketplace APIREST API for listing available plugins, uploading new plugin builds, and downloading plugin updates from th...30.0 Newegg Marketplace APISeller integration API for the Newegg marketplaces covering item, order, shipping-label, RMA, datafeed, rep...29.8 Glama MCP Server RegistryComprehensive index of 23,000+ MCP servers, 4,000+ managed connectors, and 169,000+ tools spanning 86 curat...29.7 Getnet Marketplace APIPayment processing for multi-seller platforms: sub-seller onboarding, card capture (Visa, Mastercard, Elo, ...28.6 Visual Studio Marketplace APIThe Visual Studio Marketplace API provides access to the extension marketplace for Visual Studio, VS Code, ...28.6 Blender Extensions PlatformThe Blender Extensions Platform (extensions.blender.org) provides a curated repository of addons, themes, a...27.8 PagBank Marketplace / Split APIPayment-division (split) settlement for marketplaces and platforms. Splits a single charge across multiple ...26.8 Raycast StoreThe Raycast Store distributes community and partner extensions. Publishing is done via the `ray` CLI and a ...26.8 SoftwareOne Marketplace Platform APIThe SoftwareOne Marketplace Platform API provides programmatic access to the marketplace catalog, enabling ...26.2

Emerging 46 Early or largely undocumented

iCIMS Marketplace Integrations APIThe iCIMS Marketplace Integrations API enables certified partners to build, publish, and manage integration...26.0 Manifold Marketplace ContractsSmart contract system powering Manifold Gallery listings and Marketplace Widgets. Supports Auction Listings...25.2 Manifold Royalty RegistryOn-chain smart contract registry that serves as a single source of truth for NFT royalties across all major...25.2 Chowly Integrations APIConnects third-party delivery marketplaces (DoorDash, Uber Eats, Grubhub, and 150+ channels) and 50+ native...25.0 Godot Asset Library APIThe Godot Asset Library REST API powers the community asset browser inside the Godot editor (AssetLib tab) ...24.9 Wave Aggregated Merchants APISub-merchant management API for aggregators, payment service providers, and platforms that accept Wave paym...23.0 EnergyHub Marketplace APIThe Marketplace API integrates the Mercury/Edge DERMS platform with utility marketplace providers and onlin...22.6 Zeabur Services APICreate services from git repositories, uploaded zips, Dockerfiles, or prebuilt marketplace codes; restart, ...22.2 Zeabur Templates & Regions APIList and retrieve deploy templates, deploy a template spec into a project, create and update custom templat...22.2 Coupang Open APIThe Coupang Open API is a RESTful seller (vendor) API for managing the full marketplace lifecycle including...22.0 Tokopedia / TikTok Shop Open PlatformFollowing GoTo's 2024 divestment of Tokopedia's e-commerce operations to TikTok Shop, integrations for what...21.9 Houzz Seller & Vendor Commerce APIOfficial Houzz commerce API for third-party marketplace partners. Lets sellers and vendors sync product cat...21.5 Arkham Intel Exchange (Dreadnought)Marketplace where users post and claim bounties for deanonymising specific addresses or unmasking activity....21.1 Meesho Supplier / Order-Management APIPartner-gated API for onboarded Meesho suppliers and integration partners to sync catalog and inventory, fe...20.7 Perpay Marketplace Checkout APIInternal REST API that powers checkout on the Perpay Marketplace. Handles product ordering, spending-limit ...20.6 Bed Bath & Beyond Marketplace Seller APISeller-facing API for the Bed Bath & Beyond third-party marketplace, which runs as a tenant of the Mirakl M...19.9 Toss Payments Payouts APIAPI for marketplace and platform operators to disburse funds to registered sellers. Supports seller registr...19.8 Shipping.com Rate Intelligence PlatformShipping.com provides a marketplace and intelligence platform for the ocean freight and logistics industry....18.9 KaBuM! Marketplace Seller Integration APIREST API for third-party sellers and integrators to connect to the KaBuM! marketplace (operated on the Mira...18.6 Aramisauto Vehicle Catalog ContractsAramis Group publishes the machine-readable contracts behind the Aramisauto vehicle catalog as ten JSON Sch...18.4 Unreal Plugins and Fab MarketplaceUnreal Engine has a first-class plugin architecture and a content and code marketplace. The historical Unre...18.0 Lendio Loan Marketplace APIREST API for connecting small businesses with lenders. Supports loan application submission, eligibility ch...16.8 ShopSimon Retailer APIShopSimon is Simon's e-commerce platform integrating online and offline retail. The ShopSimon Retailer Hub ...16.1 Siemens Healthineers Digital MarketplaceCurated catalog distributing Siemens Healthineers and partner clinical and operational applications across ...16.1 OLX Poland Partner APIOAuth2 partner API for OLX Poland (olx.pl) that lets integrators manage classified adverts (list, create, u...16.0 FBN Direct Inputs MarketplaceFBN Direct is the member-facing ecommerce marketplace offering 7,200+ crop protection, seed, fertilizer, li...15.8 FBN Direct MarketplaceDirect-to-farmer e-commerce marketplace for crop inputs - seed, crop protection, adjuvants, and animal heal...15.8 BAXUS API (BoozApp / Marketplace)The BAXUS backend service (NestJS) that powers the marketplace and BoozApp: bottle and listing search, mark...15.7 ADPADP is the largest payroll and HCM provider with the ADP Marketplace and ADP Workforce Now / Run / Vantage ...15.5 Apartments.com NetworkResidential rental marketplace network including Apartments.com, ForRent.com, and Westside Rentals, providi...15.5 BizBuySellOnline marketplace for buying and selling small and mid-sized businesses, with broker tools and financing p...15.5 Domain GroupAustralian residential real estate marketplace and media company in which CoStar Group acquired a majority ...15.5 Homes.comResidential for-sale and rental marketplace operating agent-first branding and search, paired with the Home...15.5 Land.com / Lands of AmericaLand-for-sale marketplace network covering rural, ranch, recreational, and development land in the United S...15.5 LoopNetThe largest commercial real estate marketplace in the United States, surfacing CRE listings for sale and le...15.5 OnTheMarketUK residential property portal acquired by CoStar Group, providing for sale and to let listings with agent ...15.5 Cline MCP MarketplaceMarketplace for MCP servers/tools that extend the Cline agent.15.3 Agrofy Marketplace APIAgrofy Developers is the company's marketed partner-integration program for marketplace sellers — listing m...14.4 Gem Integrations MarketplaceIntegrations directory covering ATS, sourcing sites, productivity, HRIS & onboarding, scheduling, backgroun...14.1 LevelTen Energy Marketplace APIThe authenticated API behind the LevelTen Energy Marketplace. The host at api.levelten.energy self-identifi...14.0 Mercado Libre Platform APICore REST API for the Mercado Libre marketplace covering items, categories, search, orders, questions, mess...13.2 LiqPay Payouts APIAPI for merchant-initiated payouts (credit transfers) to customer cards or accounts. Used for marketplace d...13.1 TikTok Shop Open APIRESTful Open API for managing TikTok Shop seller accounts, products, orders, fulfillment, returns and refun...13.1 FedMallDoD procurement marketplace operated by DLA where authorized buyers from federal, state, local, tribal, and...12.4 Ronin Market Partner APIPartner API for NFT creators on Ronin Market - notably an NFT metadata refresh endpoint that lets approved ...12.0 Limepay Platform APIREST API for platform and marketplace integrations to onboard and manage sub-merchants: create platform mer...11.1

Minimal 4 Almost no public developer surface

EcoVadis Marketplace APIThe EcoVadis Marketplace API is a specialized instrument crafted to exchange mission-critical sustainabilit...10.7 Bukalapak REST APIBukalapak's public REST API for marketplace resources such as products and the authenticated user profile, ...10.1 Zyla API HubZyla API Hub provides a centralized marketplace for discovering, testing, and integrating thousands of APIs...9.1 Sears Marketplace Seller APIVersioned XML-over-HTTPS API for third-party sellers on Sears Marketplace (Sears.com, Kmart.com, ShopYourWa...0.0

Companies reaching this through an API (91)

These companies publish an API, specification or operation carrying “Marketplace” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

4Paradigm Adobe Creative Cloud Airwallex Akash Network AlayaCare Ariba Arkham Intelligence Artera Asaas Automattic Azure DevOps Azure Virtual Machines Blender broke2built Cashfree Payments Chowly Clay Cline Clio CoreStory Databricks Dedalus Labs Defense Logistics Agency dLocal Eaton Ecovadis Eightfold AI EnergyHub Factorial Fortanix Freshdesk Fusio Gala Games Gem Glama Godot Engine Google Workspace GoTo Group (Gojek + Tokopedia) Help Scout HR & People HyperPay iCIMS IntegrationOS invinoveritas Karada AI Keboola Kraken LiqPay Matomo MediaMath

Show all 91 companies ↓

MediaRuntime Mercado Pago Microsoft Azure Microsoft Visual Studio MuleSoft Nexla Open (open.money) Openwork Oracle OTO Global PagBank PancakeSwap Perpay PixieBrix Qualia QuickNode Raycast Relevance AI ReqArchitect Ronin Network S&P Global Sendoso Sequence Siemens Healthineers Simon Property Group SmartRecruiters Spreadshirt Tackle.io Telr Toss Twilio Unreal Engine Unstoppable Domains Vercel Wave Mobile Money Worldpay Xata Zai Zeabur Zendesk Zoom

Score breakdown

Frequency

84.2

log-scaled weighted occurrences

Breadth

24.6

spread across providers

Quality lift

16.6

mean composite of providers using it

Cohesion

14.9

strength of nearest seed neighbor

Where this tag sits

1096 providers carry this tag directly, and 1097 counting the 1 narrower tag below — 1 more to reach.

E-Commerce broader Classifieds 22 providers

Where this tag comes from

Provider tag1098

Api tag170

Openapi tag34

Openapi op tag191

Markets provisional

Kin Score markets whose measured providers carry this tag. Share is the fraction of the market's measured providers that carry it — it describes the market, not this tag.

Market	Share of the market's providers
OCTO Tours, Activities & Attractions Connectivity (members, known implementations, self-certification)	36%
Regulated Retail (cannabis track-and-trace, delivery marketplaces)	35%

Cohort brief

Auto-generated

The 969 providers in the APIs.io catalog tagged Marketplace, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

969

of 1096 in the catalog

Mean Kin Score

17.5

-4.7 vs catalog 22.2

Mean Agent Readiness

8.3

-3.7 vs catalog 12

Spread

0–84.3

median 12.4 · σ 15.4

How the 969 split by band

Exemplar 10Strong 21Developing 86Thin 101Emerging 342Minimal 409

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Access Clarity	22.3	23.9	-1.6	969
Discoverability	55.3	57.9	-2.6	969
Contract Governance	3.7	6.5	-2.8	969
Operational Transparency	8.6	13	-4.4	969
Contract Quality	10.6	17.2	-6.6	969
Developer Ergonomics	16.5	23.2	-6.7	969

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes

Artifact	This cohort	Catalog	Difference
MCP server (any)	11%	13%	-2
MCP server (first-party)	9%	12%	-3
Agent Skills	0%	0%	0
OAuth scopes	7%	11%	-4
Security	99%	98%	+1
Arazzo workflows	2%	2%	0
Governance rules	8%	16%	-8

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score

1 Hagglebee 84.3
2 Agoragentic 80.4
3 Doordash 76.2
4 The Colony 74.8
5 ZnanyLekarz 74.3
6 Mirakl 72.7
7 Vendasta 70.9
8 Instacart 70
9 Match It Up 68.6
10 Immutable 67.7

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

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

https://apis.io/mcp

Tools for tags

7 MCP tools reach this

find_tagsBrowse and filter every tag in the catalog.
get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
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

This tag

curl "https://apis.io/api/v1/tags/marketplace"

All tags

curl "https://apis.io/api/v1/tags?limit=25"

As a scored cohort

curl "https://apis.io/api/v1/cohorts/tag/marketplace"

The distribution (Pro)

curl "https://apis.io/api/v1/cohorts/tag/marketplace/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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Marketplace

Providers using this tag (1096)

APIs with this tag (169)