captcha-mcp

https://server.smithery.ai/zekebuilds/captcha-mcp/mcp

● healthy

PoW 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.

Transport

streamable-http

Auth

smithery_api_key

Cost

—

How to connect

MCP endpoint (streamable-http)

https://server.smithery.ai/zekebuilds/captcha-mcp/mcp

JSON-RPC initialize probe

curl -X POST https://server.smithery.ai/zekebuilds/captcha-mcp/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}'

Homepage

https://captcha-mcp.powforge.dev

Listed at (smithery)

https://captcha-mcp.powforge.dev