As of 2026, MCP is no longer just an Anthropic project. It has been formalized as an open standard under the Linux Foundation, with multi-company governance including contributions from OpenAI, Google, Microsoft, and independent developers.
Protocol changes follow a formal process called Specification Enhancement Proposals (SEPs):
| Group | Focus |
|---|---|
| Transport WG | Streamable HTTP, scaling, load balancers |
| Agent WG | Tasks, sampling, long-running operations |
| Security WG | OAuth, audit logging, enterprise auth |
| Discovery WG | .well-known endpoints, registry standards |