Interfaces

Every Graph OS interface reaches the same governed application services. Choose the transport that matches the caller; identity, tenant policy, and provenance remain part of the request lifecycle.

Caller	Interface	Start here
Local MCP clients	stdio	MCP server
Remote MCP clients	Authenticated streamable HTTP	MCP server
HTTP applications and hosted clients	REST	REST gateway
Agent peers	Unary A2A	A2A
Browser users	Hosted Agent Web UI and attended browser control	Browser control
Operators	Health, readiness, and fleet surfaces	Capability status

Agent Web UI, Agent Terminal UI, Geniusbot, and messaging channels are client experiences at this boundary. Graph OS owns their governed gateway; each client owns its presentation and local interaction state.