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

Square Loyalty APIThe Loyalty API from Square — 16 operation(s) for loyalty.78.2 Doordash Loyalty APIEndpoints for loyalty related resources76.3 Talon.One Loyalty APIRepresents loyalty programs or concepts related to them. Loyalty programs can be _profile-based_ or _card-b...74.8 Adyen Loyalty APIThe Loyalty API from Adyen — 1 operation(s) for loyalty.73.6

Strong 13 Solid coverage with minor gaps

Talkable Loyalty APIThe Loyalty API from Talkable — 5 operation(s) for loyalty.65.7 Splio Loyalty APIThe Loyalty API from Splio — 1 operation(s) for loyalty.61.3 Splio Referral APIReferral coupon API published as a public Postman collection. Checks and burns coupons for a referrer or a ...61.3 Mastercard Loyalty PromotionsDrive consumer engagement with customizable promotions delivered through your digital touchpoints to the ri...57.3 Mastercard Loyalty User ManagementThe Loyalty User Management API enables issuers and program operators to manage loyalty program users, hand...57.3 Mastercard Offers Merchant ContentThe Offers Merchant Content API enables merchants and merchant partners to manage and deliver card-linked o...57.3 Mastercard Pay with RewardsThe Pay with Rewards API enables issuers to allow cardholders to use their loyalty points to pay for purcha...57.3 Mastercard Personalized OffersPersonalized Offers analyzes payment card transaction history to present cardholders with relevant card-lin...57.3 Mastercard Points Activity ServiceThe Points Activity Service API provides a real-time update view of a consumers point activity details tha...57.3 Mastercard Priceless Platform APITap into the the world of Priceless experiences, offers, benefits and publish them your digital platforms.57.3 Wallet / PassKit Web ServiceThe PassKit Web Service is a server-side HTTP contract that Wallet pass providers must implement so that Ap...57.3 Tyro Payments Loyalty APIThe Loyalty API from Tyro Payments — 1 operation(s) for loyalty.56.0 Mews Loyalty Partner APIReverse API for loyalty program providers — Mews calls the partner's endpoints to look up members, validate...55.0

Developing 14 Usable, with meaningful gaps to close

Block Loyalty APIThe Loyalty API from Block — 16 operation(s) for loyalty.54.1 WoowUp API v3REST API for syncing customers (multi-ID), purchases, products, categories, branches, coupons, benefits, po...52.1 Oracle CrowdTwist Loyalty and Engagement APIThe core CrowdTwist REST/JSON API for loyalty program members and their points economy — create, read, upda...51.2 MoMo Voucher Distribution APIAPI for creating and distributing promotion campaigns and voucher codes to MoMo users, and for reconciling ...49.7 CCP Games Loyalty APIThe Loyalty API from CCP Games — 2 operation(s) for loyalty.49.6 WeFitter Loyalty APIThe loyalty API from WeFitter — 2 operation(s) for loyalty.46.9 Convertedin Loyalty & POS Integration APIA second merchant-implemented contract, aimed at loyalty and point-of-sale vendors. GET endpoints for /api/...45.6 EVE Online Loyalty APIThe Loyalty API from EVE Online — 4 operation(s) for loyalty.45.2 Sheeva Loyalty APIThe Loyalty API from Sheeva — 2 operation(s) for loyalty.44.4 CommBank YelloCommBank Yello is the bank's customer recognition and rewards program offering eligible customers exclusive...43.4 Green Dot Cashback Rewards APICashback Rewards APIs manage cashback rewards programs on partner accounts — creating and managing rewards,...43.0 Advance Auto Parts Loyalty APISpeed Perks loyalty program42.0 AMC Entertainment Holdings Loyalty APIAMC Stubs loyalty accounts, cards, redemptions, and registrations.41.6 MoneyHash Loyalty APIThe Loyalty API from MoneyHash — 4 operation(s) for loyalty.40.4

Thin 19 Limited public surface area

EZR Open PlatformThe EZR 开放平台 integration surface — 236 documented interfaces across 11 business domains (base data, member ...38.9 Xoxoday Reward Points APIAPI for distributing, tracking, and managing loyalty and engagement points programs. Supports sending point...38.3 Swiftly Shopper GraphQL APIThe GraphQL API that backs Swiftly-built retailer mobile apps and websites. Exposes 45 queries and 11 mutat...38.2 Accor Loyalty APIThe Loyalty API from Accor — 22 operation(s) for loyalty.35.6 Chase Rewards Balance APIAPI that allows merchant and partner systems to retrieve a Chase cardholder's current rewards points balanc...34.9 Expedia Group Loyalty APITemplate Loyalty Earn API33.8 Samsung Wallet APISamsung Wallet API allows developers to add digital passes, tickets, boarding passes, loyalty cards, coupon...33.2 Phorest Loyalty APIClient loyalty point adjustments.32.7 Yotpo Loyalty APILoyalty and referrals customers, orders, and redemptions.32.7 Restaurant Brands International Loyalty APIThe Loyalty API from Restaurant Brands International — 1 operation(s) for loyalty.32.2 Starbucks Loyalty APIStarbucks Rewards loyalty program operations32.0 point.me Flight Search APIThe API host point.me operates behind its consumer search product and its Gateway embedded platform. https:...31.9 regal-entertainment-group Loyalty APIRegal Crown Club loyalty rewards31.7 Cielo Promo APIThe Cielo Promo API lets partner platforms surface merchant promotions and discounts to cardholders. It use...31.0 Slice Customers API (Modeled)Logical, modeled grouping for the diner accounts, order history, and marketing/loyalty relationships that S...30.3 HTS Travel Loyalty Portals (Banks)Travel loyalty portals powering bank travel programs, used by partners such as Capital One Travel and RBC. ...29.3 Lucky Cart Game Experience APIGrants access to the gamified post-purchase experiences a shopper has earned. GET /game-experiences-access ...28.1 Nuitée (LiteAPI) Loyalty APILoyalty program configuration, points, and vouchers.26.6 GrabRewards (Points Earning & Tier) APIsThe Points Earning and GrabRewards Tier APIs let ecosystem partners award GrabRewards points for qualifying...26.5

Emerging 23 Early or largely undocumented

SPG Loyalty APIThe Starwood Preferred Guest (SPG) Loyalty API provided programmatic access to the SPG loyalty program, ena...26.0 Citi Pay with Points APIThe Citi Pay with Points API enables Citi cardholders to redeem ThankYou points and other rewards balances ...22.8 MyLinkables Consumer APIRESTful consumer API for building applications on top of the Linkable card-linked-offer platform. Per the p...21.5 Rybbon Points-to-Rewards APIREST API for integrating a points-based reward system, allowing platforms to allocate points to recipients ...21.1 American Express Network Loyalty PlatformThe American Express Network Loyalty Platform (the R42 Platform) is a suite of real-time Application Progra...20.3 American Express Pay with PointsAmerican Express Pay with Points allows cardholders to use the points they have earned through their Americ...20.3 American Express Smart Offer PartnershipThe American Express Smart Offer Partnership product provides registered partners with access to certain Am...20.3 Southwest Airlines Rapid Rewards APIThe Rapid Rewards loyalty program API enables management of points balances, redemption, and tier status fo...20.3 Revel Systems APIREST API for the Revel Systems iPad POS platform, covering orders, payments, products, inventory, customers...19.6 Chick-fil-A OneChick-fil-A One is the tiered loyalty rewards program with four levels (Member, Silver, Red, Signature) off...19.3 EV Connect Drivers APIManage drivers and their charging accounts, enabling custom driver apps, coupons pushed at plug-in, and loy...19.2 KGeN Economy ProtocolsDeveloper APIs for the KGeN Esports and Loyalty protocols — sessions, tournaments, leaderboards, wallets (K...18.8 Kroger Identity and Loyalty APIThe Kroger Identity API provides OAuth 2.0-based authentication for Kroger customers including Roundy's ban...18.4 Skechers Plus Loyalty APIThe Skechers Plus loyalty program enables customers to earn and redeem points across all purchase channels ...17.9 Sheetz Loyalty and Rewards APIThe Sheetz Rewards loyalty platform powered by Ignite Retail Technology provides a unified loyalty engine w...17.3 Co:Create APIREST API for token-driven communities on Polygon: users and hosted wallets; ERC-20 / ERC-721 / ERC-1155 and...17.0 Me Protocol PaaS APIHosted Platform-as-a-Service REST API for Me Protocol — the backend behind the embeddable rewards SDKs. Aut...16.3 Weis Markets Loyalty Rewards APIThe Weis Markets Loyalty Rewards API supports the Weis Rewards program, enabling digital loyalty card manag...16.3 Heartland Gift and Loyalty APIThe Heartland Gift and Loyalty API supports stored value cards, gift card issuance and redemption, and loya...15.0 1World Platform APIThe first-party HTTP backend behind the 1World Online publisher portal, widget frontend and loyalty applica...13.9 KFC China Super App PlatformThe KFC China Super App is Yum China's digital ordering and loyalty platform providing members with digital...13.2 Pizza Hut China Digital PlatformPizza Hut China's digital ordering and loyalty platform, part of Yum China's integrated membership ecosyste...13.2 Byte by Yum! PlatformByte by Yum! is Yum! Brands' proprietary AI-driven restaurant technology platform delivering digital orderi...12.6

Minimal 7 Almost no public developer surface

Annex Cloud Members APICreate, enroll, retrieve, update, delete, search, and merge loyalty members, and read a member's activity a...10.9 Circle K Inner Circle RewardsInner Circle Rewards is Circle K's free loyalty program letting members earn fuel discounts, food rewards, ...10.7 ACME for U Loyalty ProgramACME for U is the chain's free loyalty program, surfacing personalized weekly ad deals, digital coupons, an...8.6 Carnival VIFP ClubCarnival VIFP (Very Important Fun Person) Club is Carnival Cruise Line's loyalty program with tiered status...6.4 Holland America Mariner SocietyMariner Society is Holland America Line's loyalty program offering tiered benefits including stateroom upgr...6.4 Princess Captain's CirclePrincess Captain's Circle is Princess Cruises' loyalty program offering tiered membership benefits includin...6.4 McDonald's APIMcDonald's does not expose a public, self-service API. Ordering, delivery integration, menu data, loyalty, ...5.4

Companies reaching this through an API (37)

These companies publish an API, specification or operation carrying “Loyalty” 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.

Score breakdown

Frequency

63.4

log-scaled weighted occurrences

Breadth

2.6

spread across providers

Quality lift

26.2

mean composite of providers using it

Cohesion

11.7

strength of nearest seed neighbor

Where this tag sits

Loyalty & Incentives broader

Where this tag comes from

Provider tag204

Api tag81

Openapi tag19

Openapi op tag88

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
Franchise Registries (registered franchisors, IFA, POS franchise partners)	26%
Restaurants and POS	24%

Cohort brief

Auto-generated

The 191 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

191

of 204 in the catalog

Mean Kin Score

27.2

+3.1 vs catalog 24.1

Mean Agent Readiness

15.8

+1.7 vs catalog 14.1

Spread

0–85.3

median 22.4 · σ 19.2

How the 191 split by band

Exemplar 9Strong 11Developing 26Thin 41Emerging 61Minimal 43

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Developer Ergonomics	29.2	24.5	+4.7	191
Contract Quality	22	18.6	+3.4	191
Discoverability	61.3	59.1	+2.2	191
Operational Transparency	15.1	13.2	+1.9	191
Access Clarity	31.8	30	+1.8	191
Contract Governance	11.2	9.7	+1.5	191

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)	15%	18%	-3
MCP server (first-party)	12%	16%	-4
Agent Skills	0%	0%	0
OAuth scopes	18%	13%	+5
Security	100%	99%	+1
Arazzo workflows	1%	1%	0
Governance rules	37%	36%	+1

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 Lightspeed Commerce 85.3
2 Brevo 81.3
3 Square 78.2
4 Thanx 74.9
5 Talon.One 74.8
6 Dotdigital 69.8
7 Antavo 69.7
8 Extole 67.9
9 Punchh 67.1
10 Talkable 65.7

Work with this as data

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MCP server

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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.

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Loyalty

Providers using this tag (204)

APIs with this tag (80)