Two rails, same product
Path mapping (same query params; revoke uses DELETE on x402 and GET on MPP):
Do not use the same wallet on both rails for one product — see Accessing Mobula for agents.
Machine-readable discovery (MPP)
https://api.mobula.io/openapi.json lists MPP-priced routes (including /agent/mpp/* and /api/2/* where applicable). Details: MPP Agent endpoints.