Problem
serve() only creates MCP servers via FastMCP. There is no way to run an ADCPHandler as an A2A agent. Salesagent (the largest Python AdCP server) has ~2300 lines of A2A server boilerplate that the SDK should provide.
Proposed solution
Add A2A transport support to serve():
serve(MyHandler(), name="my-agent", transport="a2a")
This would create an A2A-compatible HTTP server that routes incoming task requests to the appropriate ADCPHandler methods.
Context
- prebid/salesagent has a battle-tested A2A implementation we can reference
- The
a2a-sdk dependency is already in our requirements
- The ADCPHandler abstraction is transport-agnostic — handlers work with both MCP and A2A
- Storyboards currently only test via MCP (see adcontextprotocol/adcp-client#TBD)
Ref: prebid/salesagent#1183, #174 review
Problem
serve()only creates MCP servers via FastMCP. There is no way to run an ADCPHandler as an A2A agent. Salesagent (the largest Python AdCP server) has ~2300 lines of A2A server boilerplate that the SDK should provide.Proposed solution
Add A2A transport support to
serve():This would create an A2A-compatible HTTP server that routes incoming task requests to the appropriate ADCPHandler methods.
Context
a2a-sdkdependency is already in our requirementsRef: prebid/salesagent#1183, #174 review