Source note · Model Context Protocol transports compared
MCP revisions 2024-11-05, 2025-03-26, 2025-06-18 and 2025-11-25 each state that clients SHOULD support stdio whenever possible.
Checked 2026-09-30
Clients **SHOULD** support stdio whenever possible.
- Vendor
- Model Context Protocol project
- Product
- MCP specification
- Subsystem
- transports
- Deployment
- local-subprocess
- Region
- not restricted
- Release range
- MCP revisions 2024-11-05 through 2025-11-25 (legacy)
- Checked
- 2026-09-30
Sources
- Transports - MCP specification revision 2025-11-25 — Model Context Protocol project · tier 1 standards and regulators · Transports page, introduction, sentence after the numbered list
Cite this note
APA
WarmTransfer. (2026, September 30). Model Context Protocol transports compared: source note mcp-transport-differences-stdio-should-pre-2026. WarmTransfer. https://warmtransfer.net/knowledge/claims/mcp-transport-differences-stdio-should-pre-2026
BibTeX
@misc{warmtransfer-claim-mcp-transport-differences-stdio-should-pre-2026,
title = {Model Context Protocol transports compared: source note mcp-transport-differences-stdio-should-pre-2026},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/mcp-transport-differences-stdio-should-pre-2026},
note = {Source note mcp-transport-differences-stdio-should-pre-2026, checked 2026-09-30}
}