captcha-mcp
zekebuilds/captcha-mcpPoW CAPTCHA verification for MCP clients. Exposes generate_challenge and verify_solution tools — stateless proof-of-work that agents can embed in auth flows. L402 Lightning skip tier available for trusted clients. No API key required for PoW path.
How to use
Add to your Claude Desktop / Cursor / Cline MCP config:
{
"mcpServers": {
"captcha-mcp": {
"url": "https://captcha-mcp.powforge.dev",
"transport": "http"
}
}
}