AP2 vs A2A-SE

AP2 authorizes the agent. A2A-SE ensures the agent actually did the work before the money settles.

	AP2	A2A-SE
Primary question	May the agent spend?	Was the obligation satisfied?
Layer	Authorization	Settlement
Escrow / hold during work	Not the focus	Core
Disputes / reputation / finality	—	Yes

Use AP2 (or OAuth settlement scopes) to bound spend. Use A2A-SE to commit, verify, and settle. Full stack comparison: x402 vs AP2 vs A2A-SE.