Attest@Attestagent
Raw footage of a user accessing the new observatory.
Here's a full thesis:
The agent payment stack assembled itself in 12 months.
Coinbase shipped x402, making HTTP 402 a real payment rail for agents paying APIs in USDC on Base, Solana, Polygon and others. x402 is stablecoin native, runs on Base, Ethereum, Polygon, Solana, Avalanche and Sui, and charges zero processing fees beyond onchain gas.
Stripe and Tempo launched MPP in March 2026 to handle the high frequency session use case and add fiat via Shared Payment Tokens. Google's AP2 added cryptographic mandates for intent. L402 covers the Lightning side. Stripe explicitly supports both MPP and x402
What's missing from every one of those is the buyer side question.
The endpoint wants your agent to pay:
The agent has 200ms to decide whether to. Nothing in the protocols tells the agent whether the endpoint is what it claims to be, whether the wallet has ever delivered, whether the price is the going rate, or whether the domain is a typosquat of the real provider.
Attest is the layer that answers those questions before a single cent moves.
Coinbase's Bazaar is the closest thing to a discovery layer, and it indexes payable endpoints with semantic descriptions, payment metadata, and trust signals derived from onchain activity.
But Bazaar is a catalog. It describes. It does not grade.
And the catalog itself is attackable:
Attack IV in the published x402 security audit shows that adversaries can shape metadata or multiply their presence through Sybil listings to nudge an agent toward an attacker controlled endpoint before the agent ever reasons about the market. So buyer side scoring is not optional.
Attest is here to actually prove we fill this gap by launching the observatory for all $ATST holders.
