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Side-by-side comparison of two Model Context Protocol servers. Pick the right one for Claude Desktop, Claude Code, or Cursor.
MCP server that gates API calls to AI agents using proof-of-work (free) or Lightning payment (3 sats), providing challenge, verify, and status tools for per-cal
| Feature | @Powforge/Captcha | Stripe |
|---|---|---|
| Pricing | Free | $5/mo |
| Installs | — | 4 800 |
| Rating | — | 4.7 (64) |
| Verified | — | |
| Hosted | Hosted | Hosted |
| Tools | — | 4 |
| Category | finance | finance |
| Author | zekebuilds-lab | Stripe |
| Repo | zekebuilds-lab/captcha-mcp | — |
MCP server that gates API calls to AI agents using proof-of-work (free) or Lightning payment (3 sats), providing challenge, verify, and status tools for per-call authentication without accounts.
Query Stripe data safely in Claude. Look up customers, check subscription status, inspect failed payments. Read-only by default.
Looking for something else? Browse all MCPs or check trending this week.