Quick answer: A loyalty API manages members, earning rules, balances and redemptions inside your own experience. A rewards fulfilment API sends prizes such as gift cards after another system decides who earned them. Those are different jobs. For a custom, multi-channel loyalty engine, start with Open Loyalty or Antavo. For merchants already committed to Square, examine Square Loyalty's API. For ecommerce programs, compare Yotpo. For gift-card fulfilment, examine Tango. For a participation program connecting businesses, destinations and creators, include Loop in the conversation.
This guide compares the products named in common searches such as loyalty API, reward API, loyalty program API and cashback API. It is designed to help product and marketing teams shortlist tools before a technical trial. Vendor scope changes, so confirm endpoints, commercial terms and availability directly with each provider.
First decide which problem your API must solve
A points engine records a member action, applies a rule and updates a balance. A reward catalogue makes offers discoverable and supports claims. A fulfilment service delivers the reward. A partner network lets value move between organizations. One product may cover more than one of these jobs, but a buyer should name the actual job before comparing logos.
For example, a restaurant group may need members to earn at every venue and redeem across brands. A software platform may want to offer loyalty to thousands of merchants. A DMO may want visits, trails and referrals across local businesses. An HR platform may simply need to send a digital gift card when an employee completes a survey. The same search term, “rewards API,” can hide four very different requirements.
Our guide to loyalty APIs explains the architecture. The comparison below focuses on choosing a provider.
At-a-glance comparison
| Option | Main job | Strongest fit | Key evaluation question |
|---|---|---|---|
| Open Loyalty | Headless loyalty engine | Teams building a custom program across channels | How much of the member experience must you build? |
| Antavo | Enterprise loyalty cloud and APIs | Large brands with complex rules and workflows | Which modules, implementation services and data flows are included? |
| Yotpo Loyalty | Ecommerce loyalty and referrals API | Stores using Yotpo's commerce ecosystem | How does your store stack map to its API versions? |
| Square Loyalty API | Extend a seller's Square Loyalty program | Square merchants and their developers | Can the program be configured as you need in Square Dashboard? |
| Oracle CrowdTwist | Enterprise engagement and loyalty APIs | Large established programs | What integration and operating effort does your team need? |
| Tango API | Reward catalogue and delivery | Gift cards and incentives | Who runs the loyalty logic before fulfilment? |
| Loop | Participation-led loyalty and connected partner use cases | Businesses, places and creators working together | Which API functions and partner flows match your use case today? |
This is a fit table, not a feature score. Do not read a blank in one vendor's public documentation as proof the feature does not exist. Request a demo against your actual flow.
Open Loyalty: when you want the engine behind your own interface
Open Loyalty describes itself as API-first and headless. Its public documentation covers members, transactions, campaigns, rewards and tiers, with REST APIs and webhooks. That makes it a logical shortlist candidate when a product team owns the website or app experience and wants loyalty logic behind it.
The strength of a headless approach is control. You can show a member's balance in checkout, a mobile app and a kiosk without asking users to visit a vendor-branded page. The cost is integration work: your team still needs identity, user experience, error handling and support flows. Ask for a sandbox, rate-limit details, data export process and a realistic implementation estimate. If your core problem is coalition loyalty, test several merchants, currencies and redemption rules in the same proof of concept.
Antavo: when rules and enterprise operations dominate
Antavo documents multiple APIs covering different platform functions. Its Events API, for example, records customer actions and can process them synchronously. This breadth may fit a large brand with sophisticated campaigns, governance and existing marketing systems.
A broad enterprise suite is rarely the quickest answer to a single small venue's stamp card. Its value becomes clearer when several teams need control over loyalty, promotions and data. During procurement, ask which capabilities are available by API, which require a particular module, who configures earning rules, and what changes can be made without engineering. Test a real return or cancellation, not only a happy-path purchase.
Yotpo: when loyalty is tied closely to ecommerce
Yotpo's Loyalty API covers customer profiles, points, orders, referrals, redemptions and tiers. Its current documentation says Loyalty V2 remains the main API, with selected V3 endpoints used alongside it. That matters to developers planning a new integration: verify the version of every action you need before estimating.
Yotpo is a natural option for a retailer already using its commerce tools. For a region or BID connecting independent businesses with different point-of-sale systems, ask how partner identity, shared earning and local redemption would work. For a custom app, check testing carefully: Yotpo says its loyalty API has no sandbox, so you need a separate test store.
Square: when the merchant already runs on Square
Square's Loyalty API lets developers enroll buyers, accrue points and redeem rewards in applications linked to a Square seller's program. The seller configures the loyalty program in Square Dashboard. Square explicitly says the API cannot create or modify program settings. That is an important boundary, especially for an agency hoping to administer many different programs from its own control panel.
For an individual Square merchant, this may be the most direct route because checkout and customer records already live together. For a mixed-merchant network, assess each merchant's POS, the needed cross-business rules and whether one seller's loyalty account is the right unit of ownership. Read Square's country availability and subscription requirements before building.
Oracle CrowdTwist: when engagement actions matter at enterprise scale
Oracle CrowdTwist's developer documentation lists APIs for registration, profiles, earning activities, rewards and fulfilment. Its model is useful to examine when a brand wants to reward more than transactions and already has enterprise systems and operational capacity.
Ask for a journey-specific demo: register a member, credit an eligible action, reverse it, claim a reward, and synchronize the event to your CRM. That sequence reveals more than a feature checklist. Also ask how partner access works if your program spans organizations. An enterprise API can be capable and still require substantial implementation, security and support work.
Tango: when the job is sending a reward
Tango's API guide describes catalog access, orders, digital reward delivery and account management. This is useful when your product already knows who deserves a gift card or prepaid reward and needs fulfilment at scale. Tango can complement a loyalty engine; it is not a like-for-like replacement for an entire points, visits and partner program.
This distinction prevents a common buying mistake. If you need to verify a visit, apply a challenge rule and preserve a member balance, first choose the program logic. Then decide whether a third-party fulfilment API should supply some rewards. If your rewards are local experiences, discounts or member-only access, a global gift-card catalogue may be only one part of the answer.
Where Loop fits
Loop's core product rewards participation: visits, referrals, customer content and other actions, with rewards for a business, creator or connected place. Its loyalty and rewards product and product documentation show the member and partner experience. Loop also offers a loyalty API path for teams that want this participation model connected to their own software. The right scope depends on the implementation, so ask Loop to demonstrate the exact actions, member data, redemption and partner flows your team needs; do not assume an API capability from a general platform feature.
This is particularly relevant if the end goal is more than a checkout discount: a destination might want members to discover a café, check in, book an experience, then return through a reward from a second merchant. A creator might bring an audience into that journey. If your brief is purely a gift-card API or a self-managed enterprise rules engine, compare those specialist products directly.
A practical buying checklist
- List the events. Write down every action that can earn value: purchase, visit, booking, referral, attendance, verified content or a manual adjustment. Specify how each is validated.
- Map identity. Decide whether a member is known by email, phone, your internal ID, a wallet address or several identifiers. Plan merges, deletions and consent.
- Test reversals. Refunds, duplicate webhooks, failed redemptions and cancelled bookings expose weak integrations.
- Test one real redemption. Trace the reward from eligibility through claim, delivery, staff verification and balance change.
- Examine partner boundaries. For multi-merchant programs, ask who funds value, who can see member data, and how balances transfer or settle.
- Confirm the operating model. Who designs the front end, configures rules, handles fraud, resolves disputes and supports members?
- Request documentation. Ask for current endpoint coverage, authentication, rate limits, sandbox access, webhooks, exports, uptime terms and pricing.
- Measure the right outcome. Track repeat visits, active members, cross-visits and incremental revenue rather than points issued alone. Our loyalty ROI guide offers a useful starting framework.
Which option should you shortlist?
Choose Open Loyalty if your team wants a headless engine and will own the front end. Consider Antavo or CrowdTwist when enterprise workflows and governance lead the brief. Examine Yotpo when loyalty belongs inside an ecommerce stack; Square when a merchant already runs Square. Use Tango when the primary job is delivering digital incentives. Include Loop when participation across a business or connected network is the objective and you want to evaluate an API path alongside its ready-made member experience.
For a deeper look at switching decisions, read Open Loyalty alternatives, Tango API alternatives, and the blockchain loyalty platform comparison.
Exploring a loyalty API for your product or network? Talk to Loop about your use case and ask for a demonstration of the member, reward and integration flows.
Frequently asked questions
What is the difference between a loyalty API and a rewards API?
A loyalty API usually manages member identities, earning rules, balances and redemptions. A rewards API may mean a full loyalty engine or only reward delivery. Ask the vendor to show the full member journey.
Does a blockchain make a loyalty API better?
Not automatically. Blockchain may help when verifiable ownership, partner exchange or portability is a genuine requirement. It also adds custody, transaction, support and compliance decisions. See our blockchain loyalty guide.
Can an API replace a POS loyalty program?
Yes in some cases, but it needs an integration or a separate customer action at checkout. A POS-native program can be simpler for one merchant. Our POS integration guide explains the trade-off.
What should a proof of concept include?
Use one real member, two earning events, a reversal and a redemption. If the program spans partners, include two merchants and test data permissions and value transfer.