Show HN: Clawcard – Agent inbox, phone number and credit card (clawcard.sh)

While building Latch, our governance and observability platform for agents handling sensitive operations, I needed a way to test it end‑to‑end. That meant giving agents real, governed identities: email, phone, payments, and secrets - all tied to a single auditable entity.

That testing surface turned into Clawcard.

With a single API key, your agent gets:

- A real email inbox (send + receive) - An SMS phone number - Virtual Mastercards with spend limits - An encrypted credential vault - A full audit trail for every action

All of it is built for agent-native governance and wired to work out of the box with @openclaw and http://runlatch.sh.