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API COMPARISON · ONCHAIN DATA

DEX Screener API vs GeckoTerminal API: Pair Snapshots or Candle History?

DEX Screener's API returns pair snapshots with windowed statistics. CoinGecko's onchain API, which powers GeckoTerminal data, offers pool OHLCV. Pick by whether you need a current snapshot or a time series.

By ChartsPod Editorial Team · Reviewed by ChartsPod Research
Published · Updated · 5 min read

Short answer

Use DEX Screener's API when you need current pair snapshots: price, liquidity, FDV, market cap and windowed buys, sells, volume and price change, with endpoints for pairs by address and pairs by token; its published reference does not describe OHLCV candles, and several fields are nullable. Use CoinGecko's onchain API when you need candle history per pool (OHLCV with base or quote selection) and pool lists by token address. Plan around rate limits and null values in both.

Snapshot vs time series

NeedDEX Screener APICoinGecko onchain API
Current price, liquidity, FDVPair endpointsPool endpoints
Buys/sells and volume by windowtxns and volume objectsDepends on endpoint
Candle history (OHLCV)Not described in referencePool OHLCV (incl. WebSocket)
All pools for a tokenToken-pairs endpointTop pools by token address
Rate limits60 req/min on several endpoints; others not statedPer plan; check docs
Choose by data shapeChoose by data shape. Left, DEX Screener: snapshots: What is the pool like now?; Windowed stats (txns, volume); Profiles, boosts, takeovers; No candles in reference. Right, CoinGecko onchain: series: How did the pool move?; OHLCV per pool; Base/quote selection; Nullable fields when no trades.DEX SCREENER: SNAPSHOTSWhat is the pool like now?Windowed stats (txns, volume)Profiles, boosts, takeoversNo candles in referenceCOINGECKO ONCHAIN: SERIESHow did the pool move?OHLCV per poolBase/quote selectionNullable fields when no trades
Snapshots answer 'now'; series answer 'how it got here'. Original ChartsPod editorial graphic.

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Handling nulls and limits

DEX Screener's pair schema marks priceUsd, priceChange, liquidity (and liquidity.usd), fdv, marketCap and pairCreatedAt as nullable. CoinGecko notes nullable OHLCV fields. Code must treat null as unknown, not zero.

Robust onchain data clientRobust onchain data client: Treat null as unknown, never zero; Store pool address with every record; Respect per-endpoint rate limits with backoff; Record source and fetch time; Re-fetch metadata separately from prices.ROBUST ONCHAIN DATA CLIENTTreat null as unknown, never zeroStore pool address with every recordRespect per-endpoint rate limits with backoffRecord source and fetch timeRe-fetch metadata separately from prices
Most data bugs come from treating missing as zero. Original ChartsPod editorial graphic.

Example: combining both APIs

A research script might, every 15 minutes, call DEX Screener's token-pairs endpoint for a watchlist of token addresses, store each pair's liquidity, txns and volume windows with a timestamp, and flag pairs where unique activity rises. For flagged pairs, it then requests pool OHLCV from CoinGecko's onchain API to build a price history.

Every stored row carries chain, pool address, fetch time and source. Null values stay null. When an endpoint is rate-limited, the script backs off rather than retrying in a tight loop.

The result is a dataset where snapshots and candles can be joined on pool address and time, and where gaps are explicit rather than hidden as zeros.

Pipeline design

A simple research pipelineA simple research pipeline. Steps: 1. Discover pools — Token → pools; 2. Snapshot — DEX Screener pair data; 3. History — CoinGecko pool OHLCV; 4. Store — With pool address, time; 5. Analyse — Nulls as gaps1Discover poolsToken → pools2SnapshotDEX Screener pairdata3HistoryCoinGecko poolOHLCV4StoreWith pool address,time5AnalyseNulls as gaps
Combine the APIs by role rather than choosing one for everything. Original ChartsPod editorial graphic.

For exchange (CEX) data, ChartsPod exposes market data to AI assistants through an MCP endpoint; see Crypto Charting With AI: Compare Evidence, Privacy and Model Costs.

Use DEX Screener for pair snapshots and CoinGecko's onchain API for pool candles, and never convert nulls to zero.

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Questions readers ask

Does the DEX Screener API provide candles?

Its published reference does not describe OHLCV endpoints; it provides windowed statistics.

What are DEX Screener's rate limits?

Several endpoints list 60 requests per minute; check the reference for others.

Can I get all pools for a token?

Both APIs offer token-to-pools lookups.

Sources and methodology

DEX Screener behaviour comes from its official documentation (token listing, trending, boosting and API reference) as read on 17 October 2026. Interface labels may differ slightly from API field names. Examples use illustrative numbers and no real token is implied. CoinGecko onchain API details come from its official documentation.

  1. DEX Screener: API reference — token and pair endpoints, nullable fields, rate limits.
  2. CoinGecko API: Onchain OHLCV WebSocket — pool candles, base/quote selection, nullable fields.
  3. CoinGecko API: Top pools by token address — multiple pools per token.
  4. CoinGecko API changelog — onchain endpoint changes.

This article explains research tools and workflows. It is not financial advice, does not recommend buying or selling any asset and does not predict prices. Crypto derivatives carry a risk of rapid and total loss of margin.

CHARTSPOD EDITORIAL EDITION · RESEARCH AND EDUCATION ONLY · NOT FINANCIAL ADVICE.