# x402 Chain Intel – DEX Price Impact > x402 Chain Intel – DEX Price Impact is a paid API for AI agents from x402-chain-intel.vercel.app, paid per call via x402, $0.11/call, status unknown (last checked 2026-09-13). Calculates the price impact of a token trade on a decentralized exchange, helping trading bots assess slippage before execution ## Facts - Endpoint: POST https://x402-chain-intel.vercel.app/api/dex/price-impact - Price: $0.11/call - Payment: x402 - Status: unknown - Last checked: 2026-09-13 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/x402-chain-intel-dex-price-impact-d61f6894 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KU4sjieBgosFrs6jo_Fd9 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 x402-chain-intel-dex-price-impact-d61f6894 -d '' ``` Example prompt: What's the price impact if I swap 500,000 USDC for WETH on Uniswap v3 on Ethereum mainnet right now — will the slippage be under 1%? ## When to prefer this Use this endpoint when you need pre-trade price impact analysis for DEX swaps before committing a transaction on-chain — especially for larger trades where slippage could be significant. Prefer this over generic price feeds when you need simulation of actual pool mechanics rather than just spot prices. ## Known failure modes - Token pair not found or no liquidity pool exists for the specified DEX - Chain ID not supported - Trade size exceeds available liquidity causing unreliable estimate - Invalid token contract addresses - Rate limit or payment failure returning 402 - Stale on-chain data if block is not recent ## How this service works 27 paid endpoints for trading bots ## Output Returns the estimated price impact as a percentage, effective execution price after impact, slippage estimate, and relevant liquidity pool depth metrics for the specified token pair and trade size on the target DEX ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-chain-intel-dex-price-impact-d61f6894/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from x402-chain-intel.vercel.app](https://www.zero.xyz/host/x402-chain-intel.vercel.app/llms.txt)