# DEX Pool Liquidity Lookup > DEX Pool Liquidity Lookup is a paid API for AI agents from trading-hub-v4-omega.vercel.app, paid per call via x402, $0.14/call, status unknown (last checked 2026-11-06). Fetches on-chain liquidity data for a specific decentralized exchange (DEX) pool by pool address or token pair ## Facts - Endpoint: POST https://trading-hub-v4-omega.vercel.app/api/dex/pool-liquidity?utm_source=zero.xyz - Price: $0.14/call - Payment: x402 - Status: unknown - Last checked: 2026-11-06 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/dex-pool-liquidity-lookup-90576315 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LdFPblMDoLw1fCPLBz8Th Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability dex-pool-liquidity-lookup-90576315 -d '' ``` Example prompt: What's the current liquidity and token reserves for the ETH/USDC pool on Uniswap v3 on Ethereum mainnet — I need the TVL and reserve breakdown before executing a large swap. ## When to prefer this Use this endpoint when you need real-time on-chain DEX pool liquidity data — including TVL, token reserves, and depth — for pre-trade slippage estimation, arbitrage analysis, or DeFi portfolio monitoring. Prefer this over CEX order book APIs when you specifically need decentralized on-chain pool state rather than centralized exchange depth. ## Known failure modes - Invalid pool address returns 400 or empty result - Unsupported DEX protocol or chain returns error - Pool not found on specified network returns null or 404 - RPC node timeout causes slow or failed response - Block number out of range returns historical data error ## How this service works 67 paid endpoints for on-chain, forex, stocks & market intelligence ## Output Returns on-chain liquidity metrics for the specified DEX pool including token reserves (reserve0, reserve1), total value locked in USD, liquidity depth, fee tier, pool address, and optionally current tick or price range data depending on AMM version. ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dex-pool-liquidity-lookup-90576315/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from trading-hub-v4-omega.vercel.app](https://www.zero.xyz/host/trading-hub-v4-omega.vercel.app/llms.txt)