Free, no-auth multi-chain DEX pair data — prices, volume, liquidity, transactions, and token profiles

DexScreener API — Free Multi Chain DEX Data DexScreener provides DEX pair data across 80+ chains with no API key required . Prices, volume, liquidity, transaction counts, and token profiles — all free. Best for quick lookups, cross chain comparison, and lightweight monitoring. Quick Start No authentication needed. Just make requests: Base URL https://api.dexscreener.com No API key, no headers required. Rate limits: ~300 req/min for DEX data endpoints, 60 req/min for profile/boost endpoints. Core Endpoints Search Pairs Get Pairs by Chain + Pair Address Get Pairs by Token Address Token Profiles & Boosts Pair Response Schema Key notes: priceNative and priceUsd are strings (preserves precision) pairCreatedAt is milliseconds (divide by 1000 for unix timestamp) labels : "CLMM" (concentrated), "DLMM" (dynamic), "wp" (whirlpool) info is optional — only present if the token profile has been claimed fdv / marketCap may be absent for tokens without supply data Common Patterns Quick Token Lookup Cross Chain Price Check Monitor New Tokens via Boosts Buy/Sell Ratio Analysis Supported Chains Major chains: solana , ethereum , base , arbitrum , bsc , polygon , avalanche , optimism , zksync , scroll , linea , tron , near , aptos , ton , sui , hyperliquid 80+ chains total. The chainId matches the URL path on dexscreener.com. Limitations No OHLCV/candle data — Use Birdeye or SolanaTracker for historical candles No pagination — Search returns ~30 results max No wallet/trader data — Use Birdeye or Helius for wallet analysis No token security data — Use Birdeye token security endpoint Snapshot data only — Current state, not historical time series No WebSocket — Polling only When to Use DexScreener vs Alternatives Need Use Quick free token lookup DexScreener Cross chain comparison DexScreener Historical OHLCV for backtesting Birdeye or SolanaTracker Wallet/trader analysis Helius or SolanaTracker Real time streaming Yellowstone gRPC or Birdeye WebSocket Token security check Birdeye or SolanaTracker risk score Files References references/endpoints.md — Complete endpoint listing with response schemas references/error handling.md — Rate limits, error codes, best practices Scripts scripts/token lookup.py — Look up any token across all chains with liquidity analysis scripts/boost monitor.py — Monitor newly boosted/promoted tokens

dexscreener-api