captcha-mcp
Rank #106,998smithery/zekebuilds/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 trusted clients. No API key required for PoW path.
captcha-mcp is a Model Context Protocol (MCP) server. It ranks #106,998 of 137,138 servers tracked on MCP Toplist. captcha-mcp is listed on Smithery, and ships as a single rolling release with no explicit version metadata. It was first listed on May 10, 2026.
Ranks ahead of 30,140 of 137,138 servers on MCP Toplist.
Use captcha-mcp
Hosted remote endpoint gated by authentication — connect via its URL and authenticate with the provider (OAuth flow or an API key/header, per its docs).
claude mcp add --transport http captcha-mcp https://server.smithery.ai/zekebuilds/captcha-mcp/mcpThis endpoint requires authentication — see the server’s docs for credentials.
[mcp_servers.captcha-mcp]
url = "https://server.smithery.ai/zekebuilds/captcha-mcp/mcp"Add to ~/.codex/config.toml. This endpoint requires authentication — see the server’s docs for credentials.
https://server.smithery.ai/zekebuilds/captcha-mcp/mcpSettings → Connectors → “Add custom connector”, then paste this URL. This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"captcha-mcp": {
"url": "https://server.smithery.ai/zekebuilds/captcha-mcp/mcp"
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). This endpoint requires authentication — see the server’s docs for credentials.
{
"servers": {
"captcha-mcp": {
"type": "http",
"url": "https://server.smithery.ai/zekebuilds/captcha-mcp/mcp"
}
}
}Save as .vscode/mcp.json in your workspace. This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"captcha-mcp": {
"serverUrl": "https://server.smithery.ai/zekebuilds/captcha-mcp/mcp"
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"captcha-mcp": {
"url": "https://server.smithery.ai/zekebuilds/captcha-mcp/mcp"
}
}
}This endpoint requires authentication — see the server’s docs for credentials.
Show your rank
Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.
[](https://mcptoplist.com/server/smithery%2Fzekebuilds%2Fcaptcha-mcp)<a href="https://mcptoplist.com/server/smithery%2Fzekebuilds%2Fcaptcha-mcp"><img src="https://mcptoplist.com/badge/smithery%2Fzekebuilds%2Fcaptcha-mcp.svg" alt="MCP Toplist: #106,998 of 137,138" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Listed on 1 registry
Not versioned
This server is published through a registry that does not expose explicit version metadata, and no GitHub release tags were found on the linked repository. The listing tracks a single rolling release.
Frequently asked questions
- Is captcha-mcp listed on the Official MCP Registry?
- captcha-mcp is not on the Official MCP Registry. It is listed on Smithery.
- How many versions does captcha-mcp have?
- captcha-mcp ships as a single rolling release with no explicit version metadata.
Do you run this server?
Community projects list the MCP servers behind real agents and apps. Publish yours and this page will link to it.