# ProsperStack

**Canonical:** https://apis.io/providers/prosperstack/  
**Website:** https://prosperstack.com/  
**APIs profiled:** 1

ProsperStack provides a customer retention platform for subscription businesses, offering tools to measure, test, and optimize retention performance. The service includes analytics, automated experiments, and actionable insights to help businesses reduce churn and increase revenue.

## Kin Score — 48.3 / 100 (developing)

Scored 2026-10-31 under rubric 0.25.0.

| Facet | Score |
|---|---|
| Discoverability | 66.1 |
| Contract Quality | 67.0 |
| Contract Governance | 22.0 |
| Operational Transparency | 13.2 |
| Developer Ergonomics | 32.7 |
| Access Clarity | 63.2 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 24.5 (matched via fallback).

## Agent readiness — 30.1 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | derived |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | yes |
| Agent Skills | derived |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | paginated |
| Operation Distinctiveness | distinct |

## APIs (11)

- **ProsperStack Customer Portal API** — The [customer portal](https://docs.prosperstack.com/customer-portal/enabling-the-customer-portal) allows customers to self-manage their subscriptions and billing details. Creati...
- **ProsperStack Events API** — An event represents a ProsperStack event that occurred in your account. These are the same events that are delivered via configured webhooks. The events endpoints can be used as...
- **ProsperStack Flow Sessions API** — A flow session represents the session a cancelling subscriber took when going through the ProsperStack cancellation flow, including answers to survey questions and any offers pr...
- **ProsperStack Flows API** — A flow represents a ProsperStack cancellation flow.
- **ProsperStack Offer Links API** — An offer link is a unique URL associating a landing page offer with a particular subscription. [Learn more.](https://docs.prosperstack.com/offers/offer-links)
- **ProsperStack Offers API** — An offer represents a [ProsperStack offer](https://docs.prosperstack.com/offers/creating-an-offer). Offers can be of type `coupon`, `pause_subscription`, `trial_extension`, `cha...
- **ProsperStack Payments API** — A payment represents a retained payment made by a saved or deflected subscriber. Payments can be of type `saved` or `deflected`.
- **ProsperStack Properties API** — A property represents a [ProsperStack custom property](https://prosperstack.com/docs/custom-properties/) defined for subscribers or subscriptions. Properties can be used to stor...
- **ProsperStack Subscribers API** — A subscriber represents a customer of your product.
- **ProsperStack Subscriptions API** — A subscription represents a subscription belonging to a customer of your product.
- **ProsperStack Webhooks API** — A webhook represents a [ProsperStack webhook](https://prosperstack.com/docs/webhooks/) that delivers events to a specified endpoint. Supported events are `flow_session_started` ...

## Agentic access (1)

- **Prosperstack Agentic Access** — 29 operations · 9 acting

## Security (2)

- **Prosperstack Authentication** — http · 1 scheme
- **Prosperstack Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Prosperstack Plans Pricing**

## Tags

Company, Retention, Subscription, Analytics, SaaS

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