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 6 Complete, well-documented, and agent-ready

Brevo Loyalty APIBuild and operate reward programs programmatically — create and publish loyalty programs, define point bala...87.3 Talon.One Integration APIReal-time, high-traffic Integration API. Send customer sessions, customer profiles, events, cart item catal...72.6 Talon.One Management APIBack-office Management API that programmatically does what the Campaign Manager UI does: applications, camp...72.6 Square Loyalty APIThe Loyalty API from Square — 16 operation(s) for loyalty.71.8 Wallet / PassKit Web ServiceThe PassKit Web Service is a server-side HTTP contract that Wallet pass providers must implement so that Ap...67.9 Adyen Loyalty APIThe Loyalty API from Adyen — 1 operation(s) for loyalty.67.1

Strong 5 Solid coverage with minor gaps

Playable APIPublic REST API for the Playable gamification platform. Covers campaign types, campaign lifecycle (list, vi...64.3 Talkable Loyalty APIThe Loyalty API from Talkable — 5 operation(s) for loyalty.61.3 Mews Loyalty Partner APIReverse API for loyalty program providers — Mews calls the partner's endpoints to look up members, validate...60.4 Mews Loyalty Partner APIThe Mews Loyalty Partner API is a reverse API — Mews calls endpoints that the loyalty provider hosts — used...58.7 Toast Loyalty IntegrationSpecification for integrating third-party loyalty programs with Toast — discovery, lookup, accrual, and red...55.6

Developing 21 Usable, with meaningful gaps to close

WeFitter loyalty APIThe loyalty API from WeFitter — 2 operation(s) for loyalty.50.3 Convertedin Loyalty & POS Integration APIA second merchant-implemented contract, aimed at loyalty and point-of-sale vendors. GET endpoints for /api/...50.0 WoowUp API v3REST API for syncing customers (multi-ID), purchases, products, categories, branches, coupons, benefits, po...49.5 Sheeva Loyalty APIThe Loyalty API from Sheeva — 2 operation(s) for loyalty.46.7 Paystone DataCandy APIThe public, documented REST API for Paystone's DataCandy gift-card and loyalty platform, built on API Platf...46.3 Mastercard Loyalty PromotionsDrive consumer engagement with customizable promotions delivered through your digital touchpoints to the ri...46.2 Mastercard Loyalty User ManagementThe Loyalty User Management API enables issuers and program operators to manage loyalty program users, hand...46.2 Mastercard Offers Merchant ContentThe Offers Merchant Content API enables merchants and merchant partners to manage and deliver card-linked o...46.2 Mastercard Pay with RewardsThe Pay with Rewards API enables issuers to allow cardholders to use their loyalty points to pay for purcha...46.2 Mastercard Personalized OffersPersonalized Offers analyzes payment card transaction history to present cardholders with relevant card-lin...46.2 Mastercard Points Activity ServiceThe Points Activity Service API provides a real-time update view of a consumers point activity details tha...46.2 Mastercard Priceless Platform APITap into the the world of Priceless experiences, offers, benefits and publish them your digital platforms.46.2 Tyro Connect Loyalty Data APIConnects loyalty and rewards providers to Tyro merchants, managing loyalty members, activities and card-lin...45.6 CCP Games Loyalty APIThe Loyalty API from CCP Games — 2 operation(s) for loyalty.45.0 Oto Data APIREST data-ingestion API for the Oto CRM platform (a CRMBonus retail solution). Thirteen POST operations loa...45.0 CommBank YelloCommBank Yello is the bank's customer recognition and rewards program offering eligible customers exclusive...44.0 CloudKitchens Public APIThe CloudKitchens Public API is a resource-oriented REST API over JSON secured with OAuth 2.0, used by inte...41.4 EZR Open PlatformThe EZR 开放平台 integration surface — 236 documented interfaces across 11 business domains (base data, member ...41.4 Incentivio Mobile & Ordering APIThe guest-facing REST API behind Incentivio's branded web and native mobile ordering apps (order.incentivio...41.4 Restaurant Brands International Loyalty APIThe Loyalty API from Restaurant Brands International — 1 operation(s) for loyalty.40.6 EVE Online Loyalty APIThe Loyalty API from EVE Online — 4 operation(s) for loyalty.40.5

Thin 23 Limited public surface area

Advance Auto Parts Loyalty APISpeed Perks loyalty program38.3 Phorest Loyalty APIClient loyalty point adjustments.38.3 regal-entertainment-group Loyalty APIRegal Crown Club loyalty rewards38.1 Xoxoday Reward Points APIAPI for distributing, tracking, and managing loyalty and engagement points programs. Supports sending point...37.9 Toast Loyalty Integration APIThe Toast Loyalty integration specification is an outbound API. The partner hosts an HTTPS endpoint that ac...37.7 Chase Rewards Balance APIAPI that allows merchant and partner systems to retrieve a Chase cardholder's current rewards points balanc...37.5 Yotpo Loyalty APILoyalty and referrals customers, orders, and redemptions.36.9 Green Dot Cashback Rewards APICashback Rewards APIs manage cashback rewards programs on partner accounts — creating and managing rewards,...36.8 Samsung Wallet APISamsung Wallet API allows developers to add digital passes, tickets, boarding passes, loyalty cards, coupon...36.2 Starbucks Loyalty APIStarbucks Rewards loyalty program operations35.9 Expedia Group Loyalty APITemplate Loyalty Earn API34.6 Nuitée (LiteAPI) Loyalty APILoyalty program configuration, points, and vouchers.34.5 Google Wallet APIAPIs for creating and managing digital passes for Google Wallet, including loyalty cards, event tickets, bo...33.2 GrabRewards (Points Earning & Tier) APIsThe Points Earning and GrabRewards Tier APIs let ecosystem partners award GrabRewards points for qualifying...32.3 Marriott Loyalty Account Merge APIInternal Marriott Bonvoy loyalty operation that merges or transfers one member profile into another, keyed ...32.1 RootRewards Quest APIREST API that lets an approved partner application read quest and campaign detail and allocate RootRewards ...31.8 AMC Entertainment Holdings Loyalty APIAMC Stubs loyalty accounts, cards, redemptions, and registrations.31.7 Citi Pay with Points APIThe Citi Pay with Points API enables Citi cardholders to redeem ThankYou points and other rewards balances ...30.0 Cielo Promo APIThe Cielo Promo API lets partner platforms surface merchant promotions and discounts to cardholders. It use...29.2 Barclays Rewards Loyalty Sync APIIntegrate loyalty programs and sync rewards data with Barclays customer accounts.28.8 Barclays Rewards Pay with Points APIEnable customers to pay with Barclays Rewards points at merchant point-of-sale.28.8 Southwest Airlines Rapid Rewards APIThe Rapid Rewards loyalty program API enables management of points balances, redemption, and tier status fo...28.2 Swiftly Shopper GraphQL APIThe GraphQL API that backs Swiftly-built retailer mobile apps and websites. Exposes 45 queries and 11 mutat...27.0

Emerging 25 Early or largely undocumented

SPG Loyalty APIThe Starwood Preferred Guest (SPG) Loyalty API provided programmatic access to the SPG loyalty program, ena...26.1 Rybbon Points-to-Rewards APIREST API for integrating a points-based reward system, allowing platforms to allocate points to recipients ...25.8 Byte by Yum! PlatformByte by Yum! is Yum! Brands' proprietary AI-driven restaurant technology platform delivering digital orderi...25.7 Lucky Cart Game Experience APIGrants access to the gamified post-purchase experiences a shopper has earned. GET /game-experiences-access ...24.2 EV Connect Drivers APIManage drivers and their charging accounts, enabling custom driver apps, coupons pushed at plug-in, and loy...23.7 Kroger Identity and Loyalty APIThe Kroger Identity API provides OAuth 2.0-based authentication for Kroger customers including Roundy's ban...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 Revel Systems APIREST API for the Revel Systems iPad POS platform, covering orders, payments, products, inventory, customers...20.9 MyLinkables Consumer APIRESTful consumer API for building applications on top of the Linkable card-linked-offer platform. Per the p...20.5 American Express Network Loyalty PlatformThe American Express Network Loyalty Platform (the R42 Platform) is a suite of real-time Application Progra...19.7 American Express Pay with PointsAmerican Express Pay with Points allows cardholders to use the points they have earned through their Americ...19.7 American Express Smart Offer PartnershipThe American Express Smart Offer Partnership product provides registered partners with access to certain Am...19.7 KGeN Economy ProtocolsDeveloper APIs for the KGeN Esports and Loyalty protocols — sessions, tournaments, leaderboards, wallets (K...19.7 Annex Cloud Members APICreate, enroll, retrieve, update, delete, search, and merge loyalty members, and read a member's activity a...19.5 Skechers Plus Loyalty APIThe Skechers Plus loyalty program enables customers to earn and redeem points across all purchase channels ...19.4 Sheetz Loyalty and Rewards APIThe Sheetz Rewards loyalty platform powered by Ignite Retail Technology provides a unified loyalty engine w...19.1 Co:Create APIREST API for token-driven communities on Polygon: users and hosted wallets; ERC-20 / ERC-721 / ERC-1155 and...17.9 Chick-fil-A Mobile AppThe Chick-fil-A mobile app provides mobile ordering, in-restaurant pickup, curbside, drive-thru express, an...17.6 Chick-fil-A OneChick-fil-A One is the tiered loyalty rewards program with four levels (Member, Silver, Red, Signature) off...17.6 KFC China Super App PlatformThe KFC China Super App is Yum China's digital ordering and loyalty platform providing members with digital...16.9 Pizza Hut China Digital PlatformPizza Hut China's digital ordering and loyalty platform, part of Yum China's integrated membership ecosyste...16.9 Weis Markets Loyalty Rewards APIThe Weis Markets Loyalty Rewards API supports the Weis Rewards program, enabling digital loyalty card manag...15.7 HTS Travel Loyalty Portals (Banks)Travel loyalty portals powering bank travel programs, used by partners such as Capital One Travel and RBC. ...14.4 Me Protocol PaaS APIHosted Platform-as-a-Service REST API for Me Protocol — the backend behind the embeddable rewards SDKs. Aut...14.2 Heartland Gift and Loyalty APIThe Heartland Gift and Loyalty API supports stored value cards, gift card issuance and redemption, and loya...12.2

Minimal 10 Almost no public developer surface

Slice Customers API (Modeled)Logical, modeled grouping for the diner accounts, order history, and marketing/loyalty relationships that S...10.5 McDonald's APIMcDonald's does not expose a public, self-service API. Ordering, delivery integration, menu data, loyalty, ...9.7 Circle K Inner Circle RewardsInner Circle Rewards is Circle K's free loyalty program letting members earn fuel discounts, food rewards, ...8.0 Circle K Mobile AppThe Circle K mobile app provides access to Inner Circle Rewards membership, fuel-savings tracking, store lo...8.0 Burger King Mobile AppThe Burger King mobile app provides mobile ordering, in-store pickup, curbside pickup, and delivery via int...7.8 Burger King Royal PerksRoyal Perks is Burger King's loyalty rewards program that earns members crowns for purchases that can be re...7.8 ACME for U Loyalty ProgramACME for U is the chain's free loyalty program, surfacing personalized weekly ad deals, digital coupons, an...7.7 Carnival VIFP ClubCarnival VIFP (Very Important Fun Person) Club is Carnival Cruise Line's loyalty program with tiered status...7.0 Holland America Mariner SocietyMariner Society is Holland America Line's loyalty program offering tiered benefits including stateroom upgr...7.0 Princess Captain's CirclePrincess Captain's Circle is Princess Cruises' loyalty program offering tiered membership benefits includin...7.0

Score breakdown

Frequency

67.2

log-scaled weighted occurrences

Breadth

5.5

spread across providers

Quality lift

33.4

mean composite of providers using it

Cohesion

12.6

strength of nearest seed neighbor

Where this tag comes from

Provider tag163

Api tag91

Openapi tag17

Openapi op tag72

Cohort brief

Auto-generated

The 200 providers in the APIs.io catalog tagged Loyalty, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

200

all scored

Mean Kin Score

27.3

+6.6 vs catalog 20.7

Mean Agent Readiness

14.9

+5.2 vs catalog 9.7

Spread

0.1–87.3

median 25.1 · σ 18.4

How the 200 split by band

Exemplar 7Strong 12Developing 28Thin 48Emerging 54Minimal 51

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Contract Quality	25.1	17.5	+7.6	200
Developer Ergonomics	25.3	17.9	+7.4	200
Access Clarity	29.2	22.3	+6.9	200
Operational Transparency	16.6	11.3	+5.3	200
Contract Governance	11.2	6.4	+4.8	200
Discoverability	65	60.4	+4.6	200

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)	8%	7%	+1
Agent Skills	0%	0%	0
OAuth scopes	17%	9%	+8
Security	97%	88%	+9
Arazzo workflows	3%	2%	+1
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 Brevo 87.3
2 Thanx 76.2
3 Talon.One 72.6
4 Square 71.8
5 iOS 67.9
6 Punchh 67.6
7 Adyen 67.1
8 Olo 64.9
9 Playable 64.3
10 Dotdigital 63.4

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cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
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resolveTurn a domain, URL or GitHub org into the provider it belongs to.
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The distribution (Pro)

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Loyalty

Providers using this tag (200)

APIs with this tag (90)