captcha-mcp
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 tr…
Quick Start
# Connect this server (installs CLI if needed)
npx -y smithery mcp add zekebuilds/captcha-mcp
# Browse available tools
npx -y smithery tool list zekebuilds/captcha-mcp
# Get full schema for a tool
npx -y smithery tool get zekebuilds/captcha-mcp challenge
# Call a tool
npx -y smithery tool call zekebuilds/captcha-mcp challenge '{}'Direct MCP Connection
Endpoint: https://captcha-mcp--zekebuilds.run.tools
Tools (3)
challenge— Request a fresh PoW challenge from the PowForge captcha service. Returns {id, salt, difficulty, signature, instructions…verify— Verify a PoW solution. Input: {salt, nonce, id, signature, algo?, difficulty?} from a prior challenge call plus the non…status— Return PowForge captcha server health, lifetime stats (pow_solves, ln_skips, challenges_issued), and L402 endpoint meta…
# Get full input/output schema for a tool
npx -y smithery tool get zekebuilds/captcha-mcp