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by modelcontextprotocol
by xuzexin-hz
Mycrab
FreeNot checkedAn MCP server that enables AI agents to create instant public HTTPS URLs via Cloudflare Tunnels on mycrab.space. It provides tools for checking subdomain availa
About
An MCP server that enables AI agents to create instant public HTTPS URLs via Cloudflare Tunnels on mycrab.space. It provides tools for checking subdomain availability, setting up temporary tunnels, and managing permanent subdomains using Solana payments.
README
MCP server for mycrab.space — instant public HTTPS URLs via Cloudflare Tunnels for AI agents.
Install
uvx mycrab-mcp
Claude Desktop config
Add to ~/.claude/claude_desktop_config.json:
{
"mcpServers": {
"mycrab": {
"command": "uvx",
"args": ["mycrab-mcp"]
}
}
}
Tools
| Tool | Description |
|---|---|
check_domain |
Check if a subdomain is available on mycrab.space |
setup_free_tunnel |
Get the command for a free tunnel (auto subdomain, expires 61 min) |
buy_domain_sol |
Reserve a permanent subdomain after paying 0.05 SOL on Solana mainnet |
get_skill_docs |
Fetch the full SKILL.md — all templates, commands, and advanced usage |
Usage
After install, agents have native mycrab tools in every session:
# Check availability
check_domain("mybot")
# Free throwaway tunnel — live in <60 seconds
setup_free_tunnel()
# → "curl -s https://mycrab.space/agent-setup-auto.sh | bash"
# Permanent custom subdomain (autonomous x402 flow)
buy_domain_sol("mybot", "<solana_tx_signature>")
# → {"setup_token": "...", "setup_command": "..."}
Links
Install Mycrab in Claude Desktop, Claude Code & Cursor
Run in your terminal:
claude mcp add mycrab-mcp -- npx FAQ
Is Mycrab MCP free?
Yes, Mycrab MCP is free — one-click install via Unyly at no cost.
Does Mycrab need an API key?
No, Mycrab runs without API keys or environment variables.
Is Mycrab hosted or self-hosted?
A hosted option is available: Unyly runs the server in the cloud, no local setup required.
How do I install Mycrab in Claude Desktop, Claude Code or Cursor?
Open Mycrab on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.
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