MemberSpace

36
Fair
Agent Native Score
Free TierAPI Key Auth

MemberSpace is a membership platform that enables creators and businesses to gate content, manage subscriptions, and build community without coding. It integrates with websites, Stripe for payments, and provides tools for user authentication and content protection.

Categories: Memberships · Authentication · Payments
#17 of 18 in Authentication · #36 of 72 in Payments
Checklist Breakdown

12 of 33 checks passed. 14 unscored.

Discovery 50%

Can an agent find and understand this tool without a web search?

✗ Published OpenAPI/Swagger spec
✗ Has llms.txt or llms-full.txt
✗ Has an MCP server (official or well-maintained)
✗ MCP server listed in a public registry
✓ API reference docs are publicly accessible
✓ Docs include runnable code examples
✓ Has a public changelog or release notes
✓ Has a public status page
Auth & Onboarding 50%

Can an agent create an account and get credentials without human intervention?

✗ Signup does not require CAPTCHA
✗ Signup does not require phone verification
✓ Supports API key auth (not only OAuth)
✗ API key obtainable without manual approval
✓ No mandatory billing info to start
✓ Can sign up without creating an organization
Pricing 100%

Can an agent operate autonomously without upfront payment or contracts?

✓ Has a free tier
✓ Usage-based pricing available
✓ No minimum contract or commitment
✓ Pricing page is public (no 'contact sales')
✓ Free tier sufficient for testing (not just a trial)
Agent Tooling Not yet scored

How well does the API work for non-human consumers?

— SDK available in 2+ languages
— Structured error responses (JSON with error codes)
— Idempotency support on write endpoints
— Pagination on list endpoints
— Webhook/event support
— Sandbox or test mode available
— Rate limit headers in responses
— Consistent REST resource naming
Reliability Not yet scored

Does the tool fail gracefully when an agent makes a mistake?

— Meaningful error messages (not just 500)
— 429 responses include Retry-After header
— Documented uptime SLA (99.9%+)
— Graceful degradation under rate limits
— Request IDs in responses for debugging
— API versioning supported
Reviewer Notes

MemberSpace lacks critical agent discovery infrastructure—no MCP server, OpenAPI spec, or llms.txt documentation. API documentation exists but is sparse and developer-focused, making programmatic discovery difficult. Account creation requires human interaction (email verification, UI-based setup), preventing autonomous agent onboarding. The API supports basic operations (member management, subscription queries) but lacks comprehensive endpoint coverage and structured error responses. Reliability appears moderate with standard rate limiting, though uptime SLAs are not publicly documented. The free tier enables initial experimentation, but agent autonomous operation would require paid plans with unclear usage-based pricing. Strongest for: backend integration by humans. Weakest for: autonomous agent discovery and signup.

Top 10 Lists
Top 10 Authentication → Top 10 Payments →

Let your agents find tools like MemberSpace

Install the Agent Native Registry MCP server. Your agents can search, compare, and score tools mid-task.

claude mcp add --transport http agent-native-registry https://agentnativeregistry.com/api/mcp