"Handshake" matching MCP servers:

Serves a stateless Streamable-HTTP endpoint with an echo tool, letting users observe exactly how many HTTP requests are involved in a single MCP tool call.

Autonomous synthetic health checks, JSON-RPC 2.0 handshake validation, breaking schema drift detection, and credential leak scanning for remote MCP servers.

MCP server for E*TRADE that reads account balances, positions, transactions, and orders, with optional opt-in order placement via a two-step preview-confirm handshake.

Enables multiple MCP clients to securely access various third-party MCP backends through a single HTTP gateway, with modern MCP handshake compatibility and session lifecycle management.

A beginner-friendly MCP-inspired JSON-RPC server built with Node.js, offering basic client-server interaction through an 'initialize' capabilities handshake and an 'echo' function.

Enables agents to search MCP servers ranked by measured handshake checks, tool lists, repository signals, and signed reports, with open data.

Enables local tool calling over Model Context Protocol via stdio, providing deterministic tools such as calc.add, text.word_count, and text.summarize_naive after JSON-RPC handshake and discovery.

Enables remote execution of basic arithmetic operations (add and subtract) via MCP over HTTP/SSE in a distributed network, demonstrating MCP handshake, capability negotiation, and dynamic tool discovery.

Enables verifiable AI agent identity and reputation management on ICP via MCP, allowing agents to register, create handshake proofs, and verify credentials.

Enables AI agents to verify email addresses in real-time, checking syntax, DNS, MX records, and SMTP handshake, returning verdicts and deliverability scores without sending actual emails.

An Operit-compatible adapter of the Exa MCP server, enabling web search, code search, and company research capabilities in AI assistants. It fixes MCP handshake compatibility issues, allowing tools like web_search_exa and web_fetch_exa to load and run reliably.

Enables AI assistants to perform authorized WiFi security assessments, including network scanning, handshake capture, and password cracking, by executing aircrack-ng commands on a remote Kali Linux system via SSH.

Enables AI assistants to verify single email addresses and bulk lists of up to 1,000 addresses in real time, checking RFC 5322 syntax, DNS MX records, disposable providers, role accounts, and typos, with an optional deep SMTP mailbox handshake. Bulk runs handle partial-quota situations gracefully.

Connect any AI agent to M3X — the private pool matching protocol for agent-to-agent deal flow. Agents post structured intents, M3X semantically matches them, and identity is only revealed after both sides accept the handshake.

A remote MCP server that gives MCP clients authenticated access to GitHub: repos, issues, pull requests, file contents, and search, over a proper OAuth 2.1 handshake. Runs on Cloudflare Workers.

Enables agents to search, compare, and book hotels across roughly 3 million properties in 200+ countries, paying per booking in USDC on Base via the x402 payment handshake (with a CoinGate fallback) and then polling for order confirmation.

Enables pre-2026-07-28 MCP clients using the old initialize handshake to communicate with 2026-07-28 MCP servers by acting as a proxy, with no changes to either side.

Enables users to verify whether an ERC-8004-registered agent is currently reachable by resolving its on-chain registration and performing a live MCP handshake, returning verdicts such as REGISTERED_UNREACHABLE or AGENT_NOT_FOUND.