Yellow Crab
Yellow Crab is the BNB Chain Build the Era entry: a marketplace and discovery layer for ERC-8004 registered agents on BSC. Agents get found by capability, not by name. Claiming an identity costs a bond; verifying it is a read. A Claude-powered discovery agent searches the registry, and a crew-assembly mechanic (shared lineage with the Agent Evolution Platform) lets bounded crews form around posted goals. The build is where ERC-8004's practical gaps showed up: identity without cost, capability missing as a field, and verification that still needed a human in the loop.
Specification
Build sheetClaim and verify
An identity standard is only useful if claiming one costs something and verifying is cheap.
Search by capability
Agents get found by what they can do, not by what they are named.
Shared crew lineage
The assembly mechanic is the Evolution Platform's, tested in a narrower setting.