established · 1.6

Cart

Score 27.9 / 100 95 providers 98 APIs Search apis.io →
Variants seen in the corpus: CAR TCAR-TCartCartscartcarts

Providers using this tag (95)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 6 Complete, well-documented, and agent-ready
SalesforceFortune 500Artificial IntelligenceAnalyticsCloud294 APIs83.3HubSpotAnalyticsCommerceContentCRM93 APIs82.4MailchimpCampaignsEmail MarketingMarketing AutomationNewsletters120 APIs81.5GetResponseEmail MarketingMarketing AutomationLanding PagesWebinars50 APIs74.1SallaArabicE-CommerceGCCHeadless Commerce18 APIs72.5Commerce LayerHeadless CommerceComposable CommerceAPI-FirstE-Commerce148 APIs72.4
Strong 5 Solid coverage with minor gaps
SwellCommerceHeadless CommerceAPI-FirstB2C34 APIs65.8ServiceNowAutomationCloud ServicesDigital WorkflowsEnterprise Platform63 APIs64.8AntavoLoyaltyCustomer LoyaltyRewardsEnterprise17 APIs62.0ShopifyCommerceE-CommercePaymentsRetail213 APIs60.4Loop ReturnsReturnsE-CommerceExchangesRefunds7 APIs57.1
Developing 28 Usable, with meaningful gaps to close
Cart.comCompanyE-CommerceRetailOrder Management1 API52.7WooCommerceE-CommerceOpen-SourceOrderProduct21 APIs47.9BrooklinenE-CommerceRetailDirect to ConsumerHome Goods6 APIs47.7MikMakAnalyticsCommerceE-CommerceMulti-Channel5 APIs47.6PayJoyCompanyFintechPaymentsLending9 APIs47.0HypericeCompanyCommerceRetailHealth and Wellness3 APIs46.5PassportCompanyShippingLogisticsCross-border eCommerce8 APIs46.1BoltCheckoutPaymentsE-CommerceOne-Click Checkout13 APIs45.5AlsoCompanyMicromobilityElectric VehiclesTransportation6 APIs45.2ColdSnapCompanyCommerceE-CommerceRetail3 APIs44.5ShopwareE-CommerceOpen-SourceHeadless CommerceB2B10 APIs44.5Alliance Data Systems (Bread Financial Holdings)Financial-ServicesFintechBuy Now Pay LaterBNPL9 APIs44.3BigCommerceE-CommerceRetailCatalogOrder161 APIs43.9NewstoreCompanyRetailOmnichannelOrder Management42 APIs43.9GetYourGuideCompanyTravelTourismTours and Activities8 APIs43.5OrdoroOrder ManagementInventory ManagementShippingDropshipping27 APIs43.1commercetoolsCommerceComposable CommerceE-CommerceGraphQL19 APIs42.4FinditPartsCompanyE-CommerceMarketplaceAutomotive1 API42.4Lemon PerfectCompanyBeveragesConsumer Packaged GoodsE-Commerce2 APIs42.1OpenCartE-CommerceShopping CartOpen-SourceSelf-Hosted10 APIs41.4MedusaCommerceHeadlessE-CommerceOpen-Source17 APIs40.7Spree CommerceE-CommerceHeadless CommerceProductOrder86 APIs40.7SAP Commerce CloudB2BB2CCommerceCustomer Experience24 APIs40.5Tech DataCloudDistributionInformation TechnologyPartner11 APIs40.5Kate FarmsCompanyNutritionMedical NutritionHealth2 APIs40.1BobbieCompanyConsumer Packaged GoodsInfant FormulaE-Commerce3 APIs39.8Unstoppable DomainsWeb3BlockchainDomain NamesNFT Domains33 APIs39.5Hubble ContactsCompanyE-CommerceRetailHealth3 APIs39.3
Thin 36 Limited public surface area
Julep BeautyCompanyBeautyCosmeticsSkincare5 APIs39.2Slingshot BiosciencesCompanyBiotechnologyLife SciencesFlow Cytometry3 APIs38.9Dolls KillCompanyRetailE-CommerceFashion3 APIs38.4Advance Auto PartsAutomotiveE-CommerceParts CatalogRetail7 APIs38.3BagistoE-CommerceLaravelOpen-SourceProduct2 APIs37.7Spree CommerceCommerceHeadlessE-CommerceOpen-Source97 APIs37.7TecovasCompanyRetailE-CommerceApparel3 APIs37.0fabricCommerceComposable CommerceHeadless CommerceE-Commerce61 APIs36.8MealMeDeliveryFoodGroceryOrdering9 APIs36.7TerminalCoffeeE-CommerceDevelopersSSH11 APIs36.4TD SYNNEXTechnology DistributionIT DistributionCloudReseller10 APIs35.8SynnexTechnology DistributionIT DistributionCloud MarketplaceFortune 1007 APIs35.4AG1CompanyConsumerHealthNutrition4 APIs35.2TherabodyCompanyWellnessHealthConsumer Products3 APIs35.2WixCMSE-CommerceHeadlessWebsite Builder9 APIs34.9OlipopBeverageConsumer Packaged GoodsDirect to ConsumerE-Commerce3 APIs34.7FnaticCompanyEsportsGamingEntertainment2 APIs34.5Voyage FoodsCompanyFood and BeverageConsumer Packaged GoodsE-Commerce3 APIs34.1Black BuffaloCompanyConsumer Packaged GoodsNicotine PouchesSmokeless Tobacco Alternative3 APIs33.7ShapewaysCompany3D PrintingAdditive ManufacturingManufacturing4 APIs33.7100 ThievesCompanyEsportsGamingApparel3 APIs33.6David ProteinAgentsMCPUniversal Commerce ProtocolCommerce4 APIs33.2BrushfireEvent TicketingRegistrationEventTicketing16 APIs32.6WugenCompanyBiotechnologyCell TherapyOncology7 APIs32.2SubblySubscriptionSubscription CommerceE-CommerceSubscription Box6 APIs32.1CilooCompanyPrintingBranded MerchandisePromotional Products2 APIs31.5UnderdogCompanyClimate TechCircular EconomyRefurbished Electronics4 APIs31.0magento16 APIs30.6Shopify Storefront APICommerceE-CommerceHeadlessGraphQL3 APIs30.5ArlettieCompanyConsumerRetailE-Commerce2 APIs29.0CirkulCompanyBeveragesConsumer Packaged GoodsDirect to Consumer1 API28.6Magento 2 (Adobe Commerce)E-CommerceCommerceOnline StoreCatalog Management8 APIs28.2CrystallizeCommerceHeadless CommerceProduct Information ManagementPIM6 APIs27.1SAP Commerce CloudE-CommerceCommerceRetailB2B2 APIs26.7Fake Store APICustomersFake DataOrderProduct4 APIs26.5RoktE-CommerceAdvertisingTransaction MomentPersonalization7 APIs26.2
Emerging 11 Early or largely undocumented
BoulevardSalon SoftwareSpa SoftwareMed SpaAppointment Scheduling7 APIs26.1ReverbMarketplaceMusicInstrumentsE-Commerce21 APIs25.2BartesianCompanyRetailE-CommerceConsumer Products1 API23.5DutchieCannabisDispensaryRetailE-Commerce4 APIs23.5Roundy'sGroceryKrogerMidwestRetail4 APIs22.0BombasCompanyRetailE-CommerceApparel1 API20.9Mammoth BrandsCompanyConsumer Packaged GoodsRetailE-Commerce2 APIs20.3Annex CloudLoyaltyCustomer RetentionRewardsPoints12 APIs19.5Blue OriginCompanyAerospaceSpaceSpaceflight4 APIs19.5InkSoftCustom ApparelE-CommerceOnline StoresPrint Shop4 APIs16.6Fraud.netFraudRiskCommercePayments1 API11.5
Minimal 9 Almost no public developer surface
AbelZeta PharmaCompanyHealthcareBiotechnologyCell Therapy10.5Umoja BiopharmaCompanyBiotechnologyImmunotherapy6.7Kyverna TherapeuticsCompanyBiotech TherapeuticsBiotechnologyCell Therapy6.4Link Cell TherapiesCompanyBiotechnologyLife SciencesCell Therapy6.2Autolus *CompanyLife SciencesBiopharmaceuticalBiotechnology4.4Stylus MedicineCompanyBiotechnologyGenetic Medicine3.3Cell Design LabsCompanyHealthcareBiotechnologyCell Therapy2.2Orbital TherapeuticsCompanyBiotechnologyPharmaceuticalsRNA Medicines2.2oricellCompanyBiotechnologyPharmaceuticalsCell Therapy2.2

APIs with this tag (92)

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 7 Complete, well-documented, and agent-ready
Salesforce B2B Commerce APIThe Salesforce B2B Commerce API provides REST endpoints for handling commerce data in B2B and D2C storefron...83.3Salesforce Cart APIThe Cart API from Salesforce — 1 operation(s) for cart.83.3HubSpot Carts APIThe carts API enables you to create and manage ecommerce cart data in HubSpot. You can sync cart informatio...82.4Mailchimp Carts APIThe Carts API from Mailchimp — 4 operation(s) for carts.81.5GetResponse Carts APICarts API documentation The Carts area of the GetResponse API v3 — 5 operation(s) across 2 path(s), split b...74.1Salla Carts APIThe Carts API from Salla — 1 operation(s) for carts.72.5Commerce Layer carts APIOperations with carts resource72.4
Strong 7 Solid coverage with minor gaps
Swell Cart APISession-scoped shopping cart for the current visitor.65.8Swell Carts APIPending purchase requests that can be converted into orders.65.8ServiceNow Cart APIOperations for managing the shopping cart and submitting orders.64.8Antavo Offers APISubmit a cart and retrieve applicable pre-purchase offers used for customer acquisition and engagement, and...62.0Antavo Promotion Engine APIList and manage promotions and apply them at checkout - submit a cart to retrieve applicable promotions and...62.0Shopify Cart APIManage the shopping cart60.4Loop Returns Cart APIThe Cart API from Loop Returns — 2 operation(s) for cart.57.1
Developing 30 Usable, with meaningful gaps to close
Cart.com Online Store APIThe Cart.com Online Store API (formerly the AmeriCommerce REST API) is a JSON REST API scoped to a single m...52.7WooCommerce Cart APIManage the current shopper's cart session including items, coupons, and shipping47.9Brooklinen Cart APIRead-only view of the current session cart.47.7MikMak Headless Commerce APIThe MikMak Headless Commerce API (v1) lets brands and their authorized agencies power commerce experiences ...47.6PayJoy Carts APIRetrieve cart information.47.0Hyperice Storefront GraphQL APIThe Shopify Storefront GraphQL API served on Hyperice's own domain. Full introspection succeeded unauthenti...46.5Passport Cart APIThe Cart API from Passport — 1 operation(s) for cart.46.1Merchant Callback APIAPI enabling merchant backends to respond to Bolt checkout events including discount application, cart crea...45.5Also Cart APIThe current session cart.45.2ALSO Storefront GraphQL APIThe Shopify Storefront GraphQL API served on ALSO's own domain. Open, unauthenticated introspection was con...45.2ColdSnap Storefront GraphQL APIThe live Shopify Storefront GraphQL API served from the ColdSnap primary domain. Anonymously introspectable...44.5Shopware Cart APIManage the shopping cart and its line items44.5Alliance Data Systems (Bread Financial Holdings) Carts APIManage Bread shopping carts that initiate the BNPL checkout flow.44.3BigCommerce Cart APIThe Cart API from BigCommerce — 2 operation(s) for cart.43.9Newstore cart APIOperations on carts43.9GetYourGuide Carts APIThe Carts API from GetYourGuide — 2 operation(s) for carts.43.5Ordoro Cart APICurrent routes for `/cart/` are sometimes interchangeably referenced as `sales_channel`43.1commercetools Carts APIManage shopping carts with line items, discounts, shipping, and tax calculations.42.4FinditParts Reseller APIThe FinditParts Reseller API allows you to search parts inventory, create and integrate FinditParts account...42.4Lemon Perfect Storefront GraphQL APIThe Shopify Storefront GraphQL API served on lemonperfect.com. Introspection is open anonymously: 428 types...42.1OpenCart Cart APIShopping cart product management41.4Medusa Carts APIThe Carts API from Medusa — 3 operation(s) for carts.40.7Spree Commerce Cart APIThe Cart API from Spree Commerce — 1 operation(s) for cart.40.7Spree Commerce Carts APIShopping cart management40.7SAP Commerce Cloud Cart APIShopping cart management40.5SAP Commerce Cloud Carts APICart emulation and management on behalf of customers40.5Tech Data Carts APIShopping cart management40.5Kate Farms Storefront GraphQL APIThe Shopify Storefront GraphQL API as deployed on Kate Farms' own host. Anonymous introspection succeeded o...40.1Bobbie Storefront GraphQL APIThe Shopify Storefront GraphQL API as served from Bobbie's own domain. Introspection is anonymous — the ful...39.8Unstoppable Domains Cart APIShopping cart management, payment methods, and checkout (requires authentication)39.5
Thin 36 Limited public surface area
Julep Beauty Cart APIRead-only view of the current session cart.39.2Slingshot Bio Storefront GraphQL APIThe Shopify Storefront GraphQL API for the Slingshot Bio online store, declared by the company in its own /...38.9Dolls Kill Storefront GraphQL APIThe Shopify Storefront GraphQL API as served from Dolls Kill's own host at /api/{version}/graphql.json. Ano...38.4Advance Auto Parts Cart APIShopping cart management38.3Bagisto REST APIRESTful API for managing all Bagisto e-commerce operations including products, categories, customers, order...37.7Spree Commerce Cart APIThe Cart API from Spree Commerce — 1 operation(s) for cart.37.7Spree Commerce Carts APIShopping cart management37.7Tecovas Agentic Commerce (UCP/MCP)Tecovas implements the Universal Commerce Protocol 2026-04-08 on its Shopify checkout host, exposing an MCP...37.0Tecovas Storefront GraphQL APIThe Shopify Storefront GraphQL API as deployed on the Tecovas checkout host. Anonymous introspection succee...37.0fabric Cart APICart endpoints are used to do basic cart operations, such as create a cart, add item to the corresponding c...36.8fabric Carts APICart endpoints are used to perform basic cart operations, such as create, update, delete and more.36.8MealMe Carts APICart creation, retrieval, and item management.36.7Terminal Cart APIThe Cart API from Terminal — 5 operation(s) for cart.36.4TD SYNNEX Carts APIShopping cart management35.8Synnex Cart APIShopping cart operations.35.4AG1 Storefront MCP ServerAnonymous Model Context Protocol server on AG1's storefront host exposing five tools - search_catalog, get_...35.2Wix Cart APIThe Cart API from Wix — 3 operation(s) for cart.34.9OLIPOP Agent Commerce API (UCP over MCP)Agent-facing commerce surface for the OLIPOP storefront, implementing the Universal Commerce Protocol (UCP)...34.7OLIPOP Storefront GraphQL APIShopify Storefront GraphQL API served on the OLIPOP domain, exposing 35 root query fields and 41 mutations ...34.7Fnatic Shop Storefront GraphQL APIThe Shopify Storefront GraphQL API as served from Fnatic's own shop domain. Introspection is anonymous — th...34.5Black Buffalo Storefront GraphQL APIThe Shopify Storefront GraphQL API as served from Black Buffalo's own domain. Introspection is anonymous — ...33.7Shapeways Cart APIShipping options for a destination.33.7David Protein Storefront MCPThe Shopify storefront MCP server David serves at davidprotein.com/api/mcp, declared in the storefront page...33.2David Protein UCP Commerce MCPThe Universal Commerce Protocol commerce server David serves at davidprotein.com/api/ucp/mcp, advertised in...33.2Brushfire Cart APIThe Cart API from Brushfire — 11 operation(s) for cart.32.6Subbly Cart APICart and checkout operations (modeled from the SDK and SubblyCart.js).32.1Ciloo Cart APIOAuth 1.0a (HMAC-SHA1) REST API on the ciloo/v1 namespace of a Ciloo brand store. Read, add, update and rem...31.5magento Carts APIShopping cart and quote management for admin, customer, and guest users, including item management, coupon ...30.6Magento GraphQL APIThe Adobe Commerce GraphQL API offers a flexible, query-driven interface designed primarily for building he...30.6Shopify Buy SDKThe Shopify JavaScript Buy SDK is a lightweight library that enables developers to integrate Shopify's stor...30.5Cirkul Storefront Agent APIThe agent-facing commerce surface Cirkul serves from its own drinkcirkul.com host. It comprises an anonymou...28.6Magento 2 (Adobe Commerce) Carts APIThe Carts API from Magento 2 (Adobe Commerce) — 2 operation(s) for carts.28.2Crystallize Shop APIEdge-distributed GraphQL API for cart, promotions, and checkout flows. Optimized for low-latency storefront...27.1SAP Commerce Cloud OCC APIThe Omni Commerce Connect (OCC) REST API exposes a broad set of commerce and data services, enabling integr...26.7Fake Store API Carts APIShopping cart operations.26.5Rokt Cart APISupports integration of Rokt into ecommerce transaction flows, enabling placement of personalized offers du...26.2
Emerging 12 Early or largely undocumented
Boulevard Client API - Booking Cart & CheckoutBuild custom, on-brand self-booking experiences on top of a cart workflow - create a cart for a location, a...26.1Reverb Cart APIThe Cart API from Reverb — 1 operation(s) for cart.25.2Bartesian Commerce (UCP Shopping)The agent-facing commerce surface of the Bartesian Shopify storefront. The store publishes a Universal Comm...23.5Dutchie Plus Checkout APIThe stateful cart and order lifecycle via GraphQL mutations - `createCheckout`, `addItem`, `updateQuantity`...23.5Kroger Cart and Checkout APIThe Kroger Cart API allows authenticated customers to add items directly to their Pick 'n Save, Metro Marke...22.0Bombas Commerce (UCP Shopping)The agent-facing commerce surface of the Bombas Shopify storefront. The store publishes a Universal Commerc...20.9Flamingo Storefront MCP ServerAnonymous Model Context Protocol server exposed by the Flamingo storefront at /api/mcp, with the same five-...20.3Harry's Storefront MCP ServerAnonymous Model Context Protocol server exposed by the Harry's storefront at /api/mcp. Five tools — search_...20.3Annex Cloud Orders and Receipts APISubmit cart and order data and upload purchase receipts to drive loyalty accrual. Documented operations inc...19.5Blue Origin Shop MCP ServerThe Blue Origin Shop storefront exposes an anonymous Model Context Protocol endpoint at https://shop.blueor...19.5InkSoft Cart & Orders APIDrive an external cart and checkout flow against an InkSoft store. Documented API 2 methods include GetCart...16.6Fraud.net Public APIPublic API for evaluating cart and transaction risk pre-authorization and submitting post-event signals for...11.5

Score breakdown

Frequency
61.9
log-scaled weighted occurrences
Breadth
2.6
spread across providers
Quality lift
44.2
mean composite of providers using it
Cohesion
19.5
strength of nearest seed neighbor

Related tags

Checkout 45 co-occurrences Storefront 17 co-occurrences Universal Commerce Protocol 17 co-occurrences Headless Commerce 13 co-occurrences Agentic Commerce 23 co-occurrences Product 51 co-occurrences Promotions 13 co-occurrences Commerce 26 co-occurrences

Where this tag comes from

Api tag96
Provider tag14
Openapi tag45
Openapi op tag184

Cohort brief

Auto-generated

The 95 providers in the APIs.io catalog tagged Cart, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
95
all scored
Mean Kin Score
36.6
+15.9 vs catalog 20.7
Mean Agent Readiness
27.8
+18.1 vs catalog 9.7
Spread
2.2–83.3
median 36.7 · σ 17.2
How the 95 split by band
Exemplar 6Strong 5Developing 28Thin 36Emerging 11Minimal 9
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 42.1 17.5 +24.6 95
Developer Ergonomics 32.7 17.9 +14.8 95
Discoverability 74.3 60.4 +13.9 95
Access Clarity 35 22.3 +12.7 95
Operational Transparency 21.4 11.3 +10.1 95
Contract Governance 15.5 6.4 +9.1 95

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
ArtifactThis cohortCatalogDifference
MCP server (any) 45% 16% +29
MCP server (first-party) 33% 7% +26
Agent Skills 0% 0% 0
OAuth scopes 46% 9% +37
Security 97% 88% +9
Arazzo workflows 11% 2% +9
Governance rules 32% 13% +19

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. 1 Salesforce 83.3
  2. 2 HubSpot 82.4
  3. 3 Mailchimp 81.5
  4. 4 GetResponse 74.1
  5. 5 Salla 72.5
  6. 6 Commerce Layer 72.4
  7. 7 Swell 65.8
  8. 8 ServiceNow 64.8
  9. 9 Antavo 62
  10. 10 Shopify 60.4
Top by Agent Readiness
  1. 1 Newstore 56.3
  2. 2 Hyperice 55
  3. 3 HubSpot 54.4
  4. 4 Brooklinen 53.1
  5. 5 Salesforce 52.2
  6. 6 Fnatic 51.1
  7. 7 GetResponse 50.4
  8. 8 Tecovas 50.2
  9. 9 Also 47.5
  10. 10 Olipop 47.5
All 95 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 25 August 2026, across 26891 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Work with this as data

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Tools for tags

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  • 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.
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As a scored cohort 
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The distribution (Pro) 
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  -H "X-API-Key: $APIS_IO_KEY"

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