# Fivestars

**Canonical:** https://apis.io/providers/fivestars/  
**Website:** https://fivestars.com  
**APIs profiled:** 0

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.

## Kin Score — 18.2 / 100 (emerging)

Scored 2026-08-17 under rubric 0.11.0. Trend: rising (+12.5 from 5.7).

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Operational Transparency | 21.1 |
| Developer Ergonomics | 10.9 |
| Commercial Clarity | 34.2 |

Regulatory layer — **Payments**: 21.9 (matched via tags).

## Agent readiness — 3.2 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Fivestars Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Fivestars Plans Pricing**

## Tags

Company, Loyalty, Rewards, Payments, Point of Sale, Customer Engagement, Marketing, Small Business

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/fivestars/). Scores are computed from the provider's own public artifacts under a published rubric.