来源: a2a-registry/browse Agent Card: https://heyresearch.xyz/.well-known/agent-card.json A2A: https://heyresearch.xyz/api/a2a HEY Research Lab is the public record of building on Robinhood Chain (chain id 4663) — every ship with its source. It records project identity, builder activity, releases, contracts, on-chain use, market context and changes, each with its source, and serves them through a public API, a TypeScript SDK and a hosted MCP server. Use HEY when you need evidence-backed information about Robinhood Chain projects: who is building, what they shipped, their contracts, what changed and when, market context