How does MCP work, message by message
MCP is JSON-RPC over stdio or HTTP. A client opens a session, asks what tools exist, then calls one. Here is each message, then a hosted server to point your agent at.
AI Agents & MCP
Giving AI coding agents a real inbox: MCP tools that create addresses, wait for a verification code and assert on what arrived, so an agent can finish a signup flow end to end.
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