x402 Signs the Money, Not the URL. I Checked 18 Fields.
An x402 payer signature does not cover the URL. It commits to the amount, the recipient, the token contract and the chain, and to nothing that says wh…
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A changed payTo address is not a honeypot: 272 payTo changes, 13 lookalikes, zero proof
In my last post I listed the ways an x402 payment can go wrong. Vector number one was the dynamic payTo swap : in x402 the destination address can cha…
An independent verifier audited my compliance API's hash chain byte-by-byte — in public, same day, both sides shipped fixes
I'm a solo developer in Bogotá, Colombia. This week something happened on a GitHub issue that I think is worth documenting, because it shows what "tru…
Spraay just introduced new endpoints for Solana Agents.
If you've built a Solana DeFi agent recently, you know the shape of the work. You write a quote function. It calls Jupiter directly because that's whe…