# Crypto And DeFi APIs

[Tools](/tools) / [Crypto And DeFi](/tools/category/crypto-and-defi)

Explore blockchain activity, token markets, and decentralized finance data. Combine protocol and market queries to investigate an asset before drawing conclusions.

- [Gas Oracle](/tools/public-records/gas-oracle) — Retrieve Ethereum mainnet gas prices, including the EIP-1559 base fee and priority-fee estimates across confidence tiers, expressed in gwei. — $0.01485 per successful call
- [Stablecoins](/tools/public-records/stablecoins) — Compare stablecoin circulating supply across chains, peg types, and collateral mechanisms. Data from DefiLlama. — $0.0297 per successful call
- [Token Price](/tools/public-records/token-price) — Look up crypto token prices, market capitalization, trading volume, and daily price changes by coin identifier or ticker. — $0.01485 per successful call
- [Trending Coins](/tools/public-records/trending-coins) — Trending crypto coins. The coins most searched on CoinGecko right now, with rank, price, and market-cap rank. — $0.01485 per successful call
- [Yield Pools](/tools/public-records/yield-pools) — Compare DeFi pool yields, base and reward APY, total value locked, chains, and projects, with filters for pool selection. Data from DefiLlama. — $0.04455 per successful call
- [QuickNode Solana Mainnet](/tools/quicknode/solana-mainnet) — Solana Mainnet. Inspect this operation for required inputs before running. — $1.485 per successful call
- [Dex Token Price](/tools/surf/dex-token-price) — Returns DEX-pool-weighted OHLCV bars \(timestamp, open, high, low, close, volumeusd\) for a single token identified by chain + address. — $0.0081 per successful call
- [Exchange Candles](/tools/surf/exchange-candles) — Returns persisted OHLCV candles for a covered Bithumb, Upbit, HashKey, bitFlyer, Coinone, or Korbit spot market. — $0.0081 per successful call
- [Exchange Coverage](/tools/surf/exchange-coverage) — Returns covered spot markets on Bithumb, Upbit, HashKey, bitFlyer, Coinone, and Korbit with latest ticker metrics, candle availability, technical score, and data status. — $0.0081 per successful call
- [Exchange Depth](/tools/surf/exchange-depth) — Returns order book bid/ask levels with computed stats. — $0.0081 per successful call
- [Exchange Klines](/tools/surf/exchange-klines) — Returns OHLCV candlestick data with period summary stats \(high, low, total volume\). — $0.0081 per successful call
- [Exchange Markets](/tools/surf/exchange-markets) — Returns trading pairs available on an exchange. — $0.0081 per successful call
- [Exchange Price](/tools/surf/exchange-price) — Returns the real-time ticker for a trading pair. — $0.0081 per successful call
- [Heatscore Projects](/tools/surf/heatscore-projects) — Returns a paginated ranked snapshot of project signal cards. — $0.0324 per successful call
- [Heatscore Token Of The Day](/tools/surf/heatscore-token-of-the-day) — Returns the token-of-the-day project signal cards with latest price, price-change percentages, dimension scores, compact signals, and AI summaries. — $0.0324 per successful call
- [Heatscore Token Of Week](/tools/surf/heatscore-token-of-week) — Returns the token-of-week project signal cards with latest price, price-change percentages, dimension scores, compact signals, and AI summaries. — $0.0324 per successful call
- [Market Exchange Flow Exchanges](/tools/surf/market-exchange-flow-exchanges) — Returns Surf's curated exchange filters for exchange-flow metrics: upstream aggregate filters plus 20 high-coverage individual exchanges. — $0.0162 per successful call
- [Market Fear Greed](/tools/surf/market-fear-greed) — Returns Bitcoin Fear & Greed Index history. — $0.0162 per successful call
- [Market Listing](/tools/surf/market-listing) — Returns historical exchange listing and delisting events. — $0.0162 per successful call
- [Market Onchain Indicator](/tools/surf/market-onchain-indicator) — Returns on-chain indicator time-series for BTC or ETH. — $0.0162 per successful call
- [Market Price](/tools/surf/market-price) — Returns historical price data points for a token over a specified time range. — $0.0162 per successful call
- [Market Price Indicator](/tools/surf/market-price-indicator) — Returns a technical indicator for a trading pair on a given exchange and interval. — $0.0162 per successful call
- [Market Public Sale](/tools/surf/market-public-sale) — Returns public sale \(IDO/ICO/IEO\) information for a project. — $0.0162 per successful call
- [Market Ranking](/tools/surf/market-ranking) — Returns a token leaderboard sorted by market cap, 24h change, or volume. — $0.0162 per successful call
- [Market Tge](/tools/surf/market-tge) — Returns Token Generation Event \(TGE\) status for a project. — $0.0162 per successful call
- [Onchain Bridge Ranking](/tools/surf/onchain-bridge-ranking) — List bridge protocols ranked by USD volume over a time range. — $0.0162 per successful call
- [Onchain Dex Activity](/tools/surf/onchain-dex-activity) — Active traders, trade count, and USD volume for a DEX protocol \(or a specific router contract\), as a single aggregate or a daily series \(groupby=day\). — $0.0162 per successful call
- [Onchain Gas Price](/tools/surf/onchain-gas-price) — Look up the current gas price for one EVM chain. — $0.0162 per successful call
- [Onchain Query](/tools/surf/onchain-query) — Query on-chain tables with structured JSON filters — no SQL text. — $0.0324 per successful call
- [Onchain Schema](/tools/surf/onchain-schema) — List the on-chain SQL tables and their columns — call this before writing a query for /onchain/query or /onchain/sql. — $0.0324 per successful call
- [Onchain Sql](/tools/surf/onchain-sql) — Run a read-only ClickHouse SQL query against on-chain data \(joins, aggregations, custom windows\) with a 30s timeout. — $0.0324 per successful call
- [Onchain Sql Jobs](/tools/surf/onchain-sql-jobs) — Run a read-only ClickHouse SQL query as a durable background job — for queries too heavy for the 30s synchronous window. — $0.0324 per successful call
- [Onchain Sql Preflight](/tools/surf/onchain-sql-preflight) — Validate and cost-estimate a ClickHouse SQL query \(EXPLAIN ESTIMATE\) without executing it. — $0.0324 per successful call
- [Onchain Yield Ranking](/tools/surf/onchain-yield-ranking) — List individual DeFi yield pools ranked by APY or TVL. — $0.0162 per successful call
- [Project DeFi Metrics](/tools/surf/project-defi-metrics) — Returns historical time-series for a single DeFi protocol metric \(e.g. daily TVL\). — $0.0162 per successful call
- [Project DeFi Ranking](/tools/surf/project-defi-ranking) — Returns a DeFi protocol leaderboard \(e.g. Aave, Uniswap, Lido\) ranked by TVL, fees, revenue, or users. — $0.0162 per successful call
- [Search Airdrop](/tools/surf/search-airdrop) — Searches and filters airdrop opportunities. — $0.0081 per successful call
- [Search Airdrop Activities](/tools/surf/search-airdrop-activities) — Lists airdrop activities with pagination. — $0.0081 per successful call
- [Search Token](/tools/surf/search-token) — Resolves an exact token ticker symbol to likely contract address candidates on supported chains. — $0.0081 per successful call
- [Search Wallet](/tools/surf/search-wallet) — Searches wallets by ENS name, address label, or address prefix. — $0.0324 per successful call

Page 4 of 5. [Previous](/tools/category/crypto-and-defi?page=3) · [Next](/tools/category/crypto-and-defi?page=5)

[Company And People Data](/tools/category/company-and-people-data) · [SEO And Marketing](/tools/category/seo-and-marketing) · [Finance And Markets](/tools/category/finance-and-markets) · [Travel And Local](/tools/category/travel-and-local) · [Prediction Markets](/tools/category/prediction-markets) · [Media Generation](/tools/category/media-generation)

[Tools](/tools) · [MCP documentation](/docs/mcp)