Read a token's DEX pair straight from the chain: pair address, both reserves, the implied price, LP total supply and how much of that LP sits in burn addresses. Base, Arbitrum and BNB Chain, Uniswap V2-style factories against the wrapped native token. Read-only eth_call, no API key. The answer states its own limits: no pair here does not mean no liquidity, because V3, other DEXes and non-native quote pairs are not covered.