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Tallybuy

For developers and agents

The same facts, through an interface

REST, MCP and WebMCP give an app or external agent the same permitted shopping facts a person sees on Tallybuy. WebMCP is available now in Chrome 149 and newer. Integration documentation is not published yet.

Contract

Facts for an external decision

An integration will provide the product and destination context. The service will return attributable facts and explicit unknowns, subject to each source's permissions. Tallybuy will not make a purchase or choose a merchant for a user or agent.

API and agent access will be documented only after authorization, rate limits and source rights are settled. The presence of this page does not grant access to product feeds or permission to redistribute their content.