operant-mcp

Secure file operations with configurable access controls

GitHub’s official MCP server for repositories, code, issues, pull requests, Actions, and security workflows.

FFraud

MCP server

FFraud's hosted MCP server at https://ffraud.com/api/mcp (Streamable HTTP, no key, nothing to install). Four tools: ip_check, email_check, domain_check and ip_reports, for IP fraud scores, abuse history, VPN, proxy and Tor detection, and throwaway email checks. Free.

BULLY Crypto Agent

MCP server

Free read-only contract checker for Robinhood Chain (chain ID 4663), built for AI agents. Verifies the official $BULLY contract (0xff0fa3799686ac47e3aff62aa2210a8441737cc3) against lookalikes and reads the chain live: token facts, proxy flags (EIP-1967/1822/1167, DELEGATECALL), owner/paused/burn reads, a 34-selector byte-pattern scan, Sourcify source match, and Uniswap v4 pools. Never trades, never touches a wallet, says unknown when it cannot read something. Also reachable over A2A and a plain JSON API.

Leash is a free hosted MCP gateway for protected access to connected email, files, calendars and other personal accounts. It provides configurable checks, per-AI permissions, activity history and undo for supported reversible actions. Connect using https://secure.openleash.com/mcp with OAuth 2.1, dynamic client registration and PKCE. Each user authorizes their own connection. Only activity routed through Leash is covered. Public integration package: https://github.com/open-leash/leash-plugin. The hosted gateway is proprietary.

Rent offshore servers from an agent. The tools read the catalogue of VPS, dedicated, Windows RDP and GPU plans across seven jurisdictions, return a quote for a billing term, open a crypto top-up and check its payment, place an order and return the credentials, start, stop or rebuild a server, and check or price a domain name. Streamable HTTP, JSON-RPC 2.0. Discovery needs no authentication; ordering uses a bearer token issued on first use, with no e-mail address and no identity check.