---
type: Article
name: "A2A, explained: how one agent proves what it's asking another to do."
id: "https://selfe.ai/insights/protocols-and-agent-checkout/a2a-explained-how-one-agent-proves-what-its-asking-another-to-do"
url: "https://selfe.ai/insights/protocols-and-agent-checkout/a2a-explained-how-one-agent-proves-what-its-asking-another-to-do"
publisher: "did:web:selfe.ai"
---

# A2A, explained: how one agent proves what it's asking another to do.

**Not written yet.** This piece is announced but unpublished; there is no body to read.

## Act on this

- [Check whether an agent can buy from you](https://selfe.ai/agentic-commerce/buyability-check) — the free readiness scan.
- [Discover venues](https://selfe.ai/api/registry/discover) — `POST`, semantic browse across the registry.
- [Match a bookable answer](https://selfe.ai/api/registry/match) — `POST` with dates and party size.
- [Verify Selfe's identity](https://selfe.ai/.well-known/did.json) — `did:web:selfe.ai`.
- [Agent card](https://selfe.ai/.well-known/agent-card.json) — how to connect over A2A or MCP.