Xerxes

Use when an agent needs to know what a Base address is at a known block: EOA, ERC-20, Uniswap V2/V3 pool, bare contract, or unread. Returns a typed object plus blockNumber and blockHash. A token that is not a pool is a token. Dead RPC is unreadability, not zeros.

Use when an agent needs to know whether a Base transaction landed. Returns pending, reverted, confirmed with confirmations, not_found, or unread. Decodes USDC Transfer logs. Proof-stamped with the head block. Missing value is null, not zero.

Use when an agent must fit a public HTTPS page into a token budget. Fetches the URL and compacts it. LLM first; extractive fallback if the bus is down. A failed fetch is not an empty document.