Unverified50% confidenceFactExact time
STDIO is the most basic form of inter-process communication (IPC): each process automatically gets three standard streams when it starts — stdin (file descriptor 0), stdout (file descriptor 1), and stderr (file descriptor 2) — and a parent process can connect to a child process through pipes to exchange data without going through the network stack.
1
Sources
50%
Confidence
Long-term
Relevance
10/13/2026
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Related Claims
VerifiedIn stdio mode, Claude Code launches the MCP Server as a child process, sending requests via stdin and receiving responses via stdout.73% similarUnverifiedInter-process communication (IPC) is the classic mechanism in operating systems for coordinating concurrently executing units, including pipes, message queues, shared memory, and sockets.68% similarVerifiedMCP has a built-in Stdio (standard input/output) local communication mechanism, but Stdio cannot transmit across networks and can only be used for inter-process communication on a local machine.66% similar
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