Week 13: a second team is now running an AI agent on atomic HTLC swaps. Here is what that validates.

Title: Week 13: a second team is now running an AI agent on atomic HTLC swaps. Here is what that validates.

Tags: mcp, ai, cryptocurrency, blockchain

For most of this spring, the map of the agent economy had a strange gap. Wallets to hold keys. Rails like x402 to move value. Marketplaces and reputation so an agent knows who to trust. And then, at the exact moment two parties settle a trade, a custodian: an escrow contract, an evaluator, a referee holding the money while a decision gets made.

We have spent thirteen weeks arguing that the settlement layer does not need a referee, because a hash-time-locked contract can hold neither side and still guarantee the trade. This week, a second team shipped a live agent that makes the same argument in code. That is worth stopping on.

The signal that mattered this week