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 4 Complete, well-documented, and agent-ready

Stripe Terminal APIUse Stripe Terminal to accept in-person payments and extend Stripe payments to your point of sale.83.2 Punchh POS APIPunchh provides robust APIs for integrating POS (Point-of-Sale) terminals with its back end. The integratio...67.6 Punchh Redemptions 1.0 (Legacy) API - POSFor more information, see POS Module 6 - Redemptions. Published by PAR on the pos section of the PAR develo...67.6 Punchh Redemptions 2.0 (New) API - POSThe Redemptions 2.0 protocol has been designed to replace the legacy Redemptions 1.0 endpoints. The new pro...67.6

Strong 8 Solid coverage with minor gaps

Olo POS Interface (OloCloud)The Olo POS Interface Specification (commonly OloCloud) is the contract POS vendors implement to make their...64.9 Omnivore POS APIOmnivore (acquired by Olo in 2019) is a universal POS API that abstracts 12+ point-of-sale systems behind a...64.9 Avalara Tax Content for Retail Configuration APIThe Avalara Tax Content for Retail Configuration API automates tax content delivery for brick-and-mortar bu...63.6 Mews POS APIAPI for Point-of-Sale systems to integrate with Mews — provides real-time visibility into F&B operations in...60.4 Shopify POS UI Extensions APIPOS UI extensions enable app developers to build custom functionality for Shopify Point of Sale. Extensions...60.4 Paymentsense Connect REST APICloud REST API for driving Paymentsense card terminals from EPOS software. Covers Pay-At-Counter (/pac) tra...59.1 Paymentsense Connect WebSockets APIDocumented WebSockets interface for the Connect platform, offering an event-driven alternative to the REST ...59.1 Mews POS APIThe Mews POS API gives partner point-of-sale systems real-time access to Mews POS data and services so that...58.7

Developing 20 Usable, with meaningful gaps to close

Bevz Integrator ServiceThe Bevz Integrator Service is a partner REST API that lets POS vendors and third-party integrators provisi...52.3 Dojo EPOS Data APIA REST contract that a merchant's EPOS (point-of-sale) system implements so Dojo can read orders, tables, a...52.1 Convertedin Loyalty & POS Integration APIA second merchant-implemented contract, aimed at loyalty and point-of-sale vendors. GET endpoints for /api/...50.0 Uber Eats Order APIThe Order API suite handles inbound Uber Eats orders, including order accept/deny, status updates, item-lev...49.6 Tamara In-Store Checkout APIGenerate Tamara checkout sessions for brick-and-mortar stores through SMS payment links or QR codes that cu...48.9 Xentral Point Of Sale APIPoint Of Sale (POS) endpoints.47.9 Mercado Pago Point API (POS)Integrates merchant systems with Mercado Pago Point card readers for in-person payments. Push an amount to ...47.5 vivenu pos APIThe pos API from vivenu — 21 operation(s) for pos.46.2 Broadlume BMS APIREST API for Broadlume BMS, the flooring business management system formerly known as RollMaster. 256 docum...46.1 Acquiring Processor - Terminal API (TAPI)Terminal API (TAPI, v2) for integrating physical payment terminals with Tribe's acquiring-processor platfor...45.8 Point of Sale - Device Directory APITribe Payments Point of Sale Device Directory API (v3) for registering, managing, and querying the estate o...45.8 Codat Sync for Commerce APIThe Codat Sync for Commerce API automatically replicates and reconciles sales data from merchant point-of-s...45.6 TheFork POS API v1Point-of-sale integration API for TheFork Manager. A POS vendor registers its POS instance, uploads a logo,...45.4 Capital One In-Store Credit Card Payments APIThe Capital One In-Store Credit Card Payments API lets merchants process Capital One credit card payments d...44.4 Capital One POS Credit Card Application APIThe Capital One POS Credit Card Application API lets merchants embed a Capital One credit card application ...44.4 Dynamics 365 Commerce APIAPI for managing e-commerce operations, retail stores, omnichannel commerce, and customer experiences.43.0 Switcloud APIREST API for the Switcloud platform, organized in three surfaces: switcloud-bom (estate — merchants, stores...42.2 Oracle Retail Xstore Point of Service APIOracle Retail Xstore Point of Service provides APIs for store operations including transactions, inventory ...41.5 Citizens Pay APIThe Citizens Pay API enables merchants and partners to integrate Citizens Pay point-of-sale financing into ...40.3 Omniful, Inc. POS APIThe POS API from Omniful, Inc. — 2 operation(s) for pos.40.2

Thin 20 Limited public surface area

Poynt Cloud APIThe Poynt Cloud API lets developers manage a merchant business's orders, transactions, customers, products,...37.2 Wolt Order / Marketplace APIReceive and fulfill consumer marketplace orders in a POS/in-store system: accept, reject, mark ready, mark ...37.0 Crunchtime Inventory & Labor APIThe Crunchtime Inventory & Labor API is a REST/JSON web-services API for integrating restaurant back-office...36.1 GetirFood APIThe GetirFood (GetirYemek) partner integration API — a Swagger 2.0 contract with 62 operations across seven...35.2 RoomKeyPMS POS APIPoint-of-sale guest lookup and folio charge posting.35.2 Circana Complete Market APIComplete Market provides robust POS measurement for in-store and online sales with fulfillment type breaks ...34.8 PagBank PlugPag (Terminal Integration)Bluetooth / Android terminal integration for PagBank's Moderninha and Minizinha card readers, enabling thir...34.8 PagBank PlugPagServiceWrapperAndroid service wrapper for integrating with the Moderninha / Minizinha terminal family — the official high...34.8 PhonePe Integrated EDC SolutionIntegration with PhonePe's EDC (Electronic Data Capture / POS) terminals, allowing merchant systems to push...33.7 BTCPay Server Point of Sale APIPoint of Sale operations33.1 Grab POS APIThe Grab POS API integrates physical point-of-sale terminals with GrabPay for in-store payment acceptance, ...32.3 GrabFood APIThe GrabFood API lets merchant POS / SaaS partners receive, acknowledge, and fulfill GrabFood orders, manag...32.3 Zip NZ In-Store APIThe Zip New Zealand In-Store API enables point-of-sale merchants to create, commit, cancel, rollback, and q...30.1 Cielo LIO Remote Integration APIThe Cielo LIO (now Cielo Smart) Remote Integration API lets ERP and commercial-automation systems drive pay...29.2 Aramark Point of Sale APIPoint of sale transaction data28.9 GoBiz Merchant PlatformGoBiz is the merchant operating platform for restaurants and retailers selling through GoFood and Gojek's o...28.2 Moka POS PlatformMoka is GoTo Financial's cloud POS for Indonesian SMBs, acquired in 2020. It exposes integration APIs and w...28.2 Popmenu IntegrationsPopmenu integrates with popular restaurant, ordering, delivery, reservation, and marketing applications inc...27.0 Neck Hangers APIReturns neck-hanger artwork that distributors and retailers attach to bottles for in-store merchandising an...26.8 Shelf Talkers APIProvides point-of-sale shelf-talker artwork keyed to specific products and promotional periods.26.8

Emerging 16 Early or largely undocumented

Byte by Yum! PlatformByte by Yum! is Yum! Brands' proprietary AI-driven restaurant technology platform delivering digital orderi...25.7 Getnet App2App In-Store IntegrationInter-app integration that lets a merchant's mobile or terminal app hand off a transaction to the Getnet pa...24.5 Getnet Host-to-Host Terminal IntegrationDirect host-to-host terminal connectivity for back-of-house systems (PDV, ERP, automation gateways) that or...24.5 Getnet Integrated POSPOS-system integration model where the Getnet terminal is driven from a merchant point-of-sale or PDV stack...24.5 NMI Customer-Present Cloud APIThe NMI Customer-Present Cloud API enables browser-based point-of-sale payment processing without software ...24.0 Revel WebhooksEvent-driven webhook channel that delivers POS events (order finalized, customer created/updated, stock cha...22.3 Lightspeed Restaurant K-Series APIREST API for Lightspeed Restaurant K-Series POS system, enabling approved partners to build integrations fo...22.0 Lightspeed Retail R-Series APIREST API for Lightspeed Retail R-Series (formerly Vend) providing access to sales, inventory, customers, pr...22.0 Lightspeed Retail X-Series APIREST API for Lightspeed Retail X-Series point-of-sale system enabling integrations for sales operations, pr...22.0 Weedmaps Menu APIKeep a retailer's Weedmaps menu in sync with their point-of-sale. Retrieve menus and menu items, and create...22.0 Revel Systems APIREST API for the Revel Systems iPad POS platform, covering orders, payments, products, inventory, customers...20.9 Tabit Orders APIOrder capture and management across Tabit's mobile POS (PAD), online ordering (Order), kiosk, and delivery ...20.7 Stone Connect APIAPI for connecting point-of-sale systems to Stone payment terminals (maquininhas), enabling merchants to in...19.8 Clip PinPad APIDrive a Clip PinPad device (fixed, high-volume terminal) from a merchant's own POS software — initiate card...18.2 TurboRater Real-Time Bridge APIHand a completed quote from TurboRater into a downstream point-of-sale, agency management, or website platf...17.7 AstroPay QR Payments APIQR Payments API for in-person and point-of-sale acceptance. Includes a Payment Code API (create, update, st...16.1

Score breakdown

Frequency

67.1

log-scaled weighted occurrences

Breadth

5.7

spread across providers

Quality lift

35.0

mean composite of providers using it

Cohesion

12.6

strength of nearest seed neighbor

Where this tag comes from

Provider tag195

Api tag71

Openapi tag6

Openapi op tag34

Cohort brief

Auto-generated

The 207 providers in the APIs.io catalog tagged Point-of-Sale, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

207

all scored

Mean Kin Score

28.9

+8.2 vs catalog 20.7

Mean Agent Readiness

16.9

+7.2 vs catalog 9.7

Spread

0.1–83.2

median 29 · σ 18.1

How the 207 split by band

Exemplar 3Strong 13Developing 51Thin 45Emerging 51Minimal 44

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Contract Quality	28.6	17.5	+11.1	207
Developer Ergonomics	28.4	17.9	+10.5	207
Operational Transparency	19.4	11.3	+8.1	207
Access Clarity	30.3	22.3	+8	207
Discoverability	65.1	60.4	+4.7	207
Contract Governance	10.1	6.4	+3.7	207

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)	22%	16%	+6
MCP server (first-party)	5%	7%	-2
Agent Skills	0%	0%	0
OAuth scopes	17%	9%	+8
Security	95%	88%	+7
Arazzo workflows	5%	2%	+3
Governance rules	18%	13%	+5

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 Stripe 83.2
2 Square 71.8
3 Punchh 67.6
4 Mollie 66.4
5 Olo 64.9
6 Avalara 63.6
7 Mindbody 60.8
8 Oracle Hospitality 60.5
9 Mews 60.4
10 Shopify 60.4

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Point-of-Sale

Providers using this tag (207)

APIs with this tag (68)