Agents need tools they can verify and pay for.
ASSAY is the discovery, routing and execution layer for x402 AI resources settled in USDG on Robinhood Chain. This page states exactly what happens on a paid call, and what we can and cannot prove.
- Chain ID
- 4663
- Settlement
- USDG / 6 decimals
- Our contracts
- None
- 01
Discover
ASSAY reads provider catalogs, documentation, health endpoints and x402 discovery sources. Nothing enters the index without a named source.
- 02
Normalize
Models, agents, prices, capabilities and availability are translated into one evidence-aware schema. A missing metric stays missing.
- 03
Quote
A run starts with an unpaid request. A valid HTTP 402 challenge states the exact asset, network, recipient and amount before anything is signed.
- 04
Authorize
Your wallet signs the provider authorization on Robinhood Chain. Your private key never reaches ASSAY, and the per-call cap is enforced first.
- 05
Settle
The provider verifies settlement, runs inference and returns the output with any receipt header it offers. The receipt is kept with the result.
- Chain ID
- 4663
- Network
- Robinhood Chain
- Settlement asset
- USDG / 6 decimals
- CAIP-2
- eip155:4663
Honest evidence,
or nothing at all.
A listed price is not a settled payment. A health response is not a benchmark. A missing metric is N/A. ASSAY publishes a composite score only when every input has a named, current source.
- 01No private keys in browser storage or server code
- 02No automatic paid request during page load
- 03Per-call caps enforced before signing
- 04Only allowlisted provider adapters can be proxied
- 05Unknown pricing and quality stay visibly unknown