# Memberstack

**Canonical:** https://apis.io/providers/memberstack/  
**Website:** https://memberstack.com/  
**APIs profiled:** 2

Memberstack provides a membership and authentication platform for Webflow, WordPress, and custom sites, enabling user sign‑ups, social logins, gated content, and Stripe payment integration, with no hidden fees and scalable pricing as businesses grow.

## Kin Score — 43.3 / 100 (developing)

Scored 2026-10-31 under rubric 0.25.0.

| Facet | Score |
|---|---|
| Discoverability | 66.1 |
| Contract Quality | 25.8 |
| Contract Governance | 22.0 |
| Operational Transparency | 50.0 |
| Developer Ergonomics | 57.1 |
| Access Clarity | 44.7 |

Regulatory layer — **Payments**: 24.1 (matched via tags).

## Agent readiness — 26.8 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | partial |
| Rate Limit Signal | documented |
| Event Surface Described | unknown |
| Agent Skills | no |
| 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 | no |
| Operation Distinctiveness | mostly |

## APIs (2)

- **Admin REST API** — Server-side Memberstack Admin REST API for managing members, verifying tokens, and other administrative tasks.
- **Memberstack API** — Memberstack API as documented publicly: 22 operations. Contract generated from the documentation by API Evangelist (2026-10-28); not the provider's own document.

## Security (2)

- **Memberstack Authentication** — 2 schemes
- **Memberstack Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Memberstack Plans Pricing**

## Tags

Membership, Webflow, SaaS, Authentication, Payments

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