Protocol · MCP
The public MCP proof surface is read-only by design.
Spann does not publish a public transaction endpoint on this domain today. The public machine-readable proof surface that exists now is the Persimmon MCP, which demonstrates bounded read access and clear identity without implying hospitality authority.
Current public proof
Three read-only tools, one bounded proof surface.
get_brand_signals
Returns bounded brand-signal output for a company or domain.
get_momentum_index
Returns a read-only momentum view, not an operator action path.
get_competitive_context
Returns competitive context as an inspection surface, not a commerce surface.
This surface is useful because it is inspectable and publicly reachable today. It is intentionally narrow. It helps establish what a machine-facing proof layer can look like without overstating what Spann can execute.
Proof links
Public references available now.
- persimmonhq.com/demo/mcpHuman-readable walkthrough for the public proof surface.
- mcp.persimmonhq.comMachine-readable identity surface.
- mcp.persimmonhq.com/healthzHealth and identity confirmation.
Out of scope for this surface
What this MCP proof does not mean.
- No hospitality booking authority.
- No public Spann protocol endpoint on this domain.
- No live inventory, rates, holds, or confirmations.
- No payment handling or property-authorized execution.
Related surface
Spann documents the protocol boundary on its own domain.
This page is part of Spann’s public discovery surface. It points to the existing Persimmon proof infrastructure while that infrastructure remains separate. A later routing wave can decide if those proof surfaces should move under the Spann surface directly.