Fivestars website screenshot

Fivestars

Fivestars was a customer loyalty, rewards, and payments platform for small and mid-sized brick-and-mortar merchants, founded in 2010 and headquartered in San Francisco. It combined an automated marketing engine, a customer loyalty and rewards program, and integrated card payments so local businesses could turn one-time shoppers into repeat customers. Fivestars was backed by Lightspeed Venture Partners, Menlo Ventures, and Y Combinator. The company was acquired by SumUp in 2021 and its product has since been folded into SumUp Connect (SumUp Loyalty); fivestars.com now redirects to SumUp's loyalty program. Fivestars publishes no public API, no developer portal and no machine-readable contract — api.fivestars.com resolves but returns 404 on every spec and well-known path, and developers.fivestars.com does not resolve. Fivestars-branded surfaces that remain live include the marketing site, merchant dashboard, help center and a public status page, plus one first-party iOS library (TapiSDK) for legacy cPay terminal integrators. This profile is retained in the API Evangelist network as a historical company record.

Fivestars is profiled on the APIs.io network. Tagged areas include Company, Loyalty, Rewards, Payments, and Point of Sale.

Fivestars’ developer surface includes support and 13 more developer resources.

18.2/100 emerging ▲ 12.5 Agent 3/100 human only Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
0 APIs
CompanyLoyaltyRewardsPaymentsPoint of SaleCustomer EngagementMarketingSmall Business

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 18.2/100 · emerging
Contract Quality 0.0 / 21
Developer Ergonomics 1.9 / 17
Commercial Clarity 5.8 / 17
Operational Transparency 2.3 / 11
Governance 0.0 / 10
Discoverability 4.9 / 9
Regulatory Posture 3.3 / 15
Agent readiness — 3/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/fivestars: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Fivestars Rate Limits

0 limits

RATE LIMITS

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Fivestars Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Build 3

SDKs, sample code, and the tooling you integrate with

Access & Security 1

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 1

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: fivestars
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/fivestars.png
name: Fivestars
description: Fivestars was a customer loyalty, rewards, and payments platform for small and mid-sized brick-and-mortar merchants,
  founded in 2010 and headquartered in San Francisco. It combined an automated marketing engine, a customer loyalty and rewards
  program, and integrated card payments so local businesses could turn one-time shoppers into repeat customers. Fivestars
  was backed by Lightspeed Venture Partners, Menlo Ventures, and Y Combinator. The company was acquired by SumUp in 2021 and
  its product has since been folded into SumUp Connect (SumUp Loyalty); fivestars.com now redirects to SumUp's loyalty program.
  Fivestars publishes no public API, no developer portal and no machine-readable contract — api.fivestars.com resolves but
  returns 404 on every spec and well-known path, and developers.fivestars.com does not resolve. Fivestars-branded surfaces
  that remain live include the marketing site, merchant dashboard, help center and a public status page, plus one first-party
  iOS library (TapiSDK) for legacy cPay terminal integrators. This profile is retained in the API Evangelist network as a
  historical company record.
url: https://raw.githubusercontent.com/api-evangelist/fivestars/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- lightspeed-venture-partners
- menlo-ventures
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
x-status: acquired
x-acquired-by: sumup
x-successor-product: SumUp Connect (SumUp Loyalty)
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-08-13'
tags:
- Company
- Loyalty
- Rewards
- Payments
- Point of Sale
- Customer Engagement
- Marketing
- Small Business
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/fivestars-domain-security.yml
- type: Website
  url: https://fivestars.com
- type: Packages
  url: packages/fivestars-packages.yml
- type: SDKs
  url: packages/fivestars-packages.yml
- type: Lifecycle
  url: lifecycle/fivestars-lifecycle.yml
- type: StatusPage
  url: https://status.fivestars.com
- type: LLMsTxt
  url: llms/fivestars-llms.txt
- type: Plans
  url: plans/fivestars-plans-pricing.yml
- type: RateLimits
  url: rate-limits/fivestars-rate-limits.yml
- type: Support
  url: https://help.fivestars.com
- type: GitHubOrganization
  url: https://github.com/fivestars
- type: Login
  url: https://dashboard.fivestars.com
- type: TermsOfService
  url: https://fsweb.fivestars.com/legal/
- type: PrivacyPolicy
  url: https://fsweb.fivestars.com/privacy/
x-enrichment:
  date: '2026-08-13'
  status: minimal
  artifacts_added: 6
  pass: local-v1
x-coverage:
  state: none
  reason: defunct
  detail: Fivestars was fully absorbed into SumUp — fivestars.com 301s to sumup.com/en-us/loyalty-program/, api.fivestars.com
    resolves through SumUp's edge but 404s on every spec and .well-known path, developers.fivestars.com and docs.fivestars.com
    do not resolve, and the Wayback Machine holds no capture of a Fivestars developer portal at any point.
  evidence:
  - url: https://fivestars.com/
    status: 301
  - url: https://api.fivestars.com/openapi.json
    status: 404
  - url: https://www.fivestars.com/developers
    status: 404
  - url: https://status.fivestars.com/api/v2/summary.json
    status: 200
  checked: '2026-08-13'