Crypto And DeFi APIs
Explore blockchain activity, token markets, and decentralized finance data. Combine protocol and market queries to investigate an asset before drawing conclusions.
Other sources
| Tool | What it returns | Price |
|---|---|---|
| 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 | Returns persisted OHLCV candles for a covered Bithumb, Upbit, HashKey, bitFlyer, Coinone, or Korbit spot market. | $0.0081 per successful call |
| 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 | Returns order book bid/ask levels with computed stats. | $0.0081 per successful call |
| Exchange Klines | Returns OHLCV candlestick data with period summary stats (high, low, total volume). | $0.0081 per successful call |
| Exchange Markets | Returns trading pairs available on an exchange. | $0.0081 per successful call |
| Exchange Price | Returns the real-time ticker for a trading pair. | $0.0081 per successful call |
| Heatscore Projects | Returns a paginated ranked snapshot of project signal cards. | $0.0324 per successful call |
| 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 | 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 | 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 | Returns Bitcoin Fear & Greed Index history. | $0.0162 per successful call |
| Market Listing | Returns historical exchange listing and delisting events. | $0.0162 per successful call |
| Market Onchain Indicator | Returns on-chain indicator time-series for BTC or ETH. | $0.0162 per successful call |
| Market Price | Returns historical price data points for a token over a specified time range. | $0.0162 per successful call |
| 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 | Returns public sale (IDO/ICO/IEO) information for a project. | $0.0162 per successful call |
| Market Ranking | Returns a token leaderboard sorted by market cap, 24h change, or volume. | $0.0162 per successful call |
| Market Tge | Returns Token Generation Event (TGE) status for a project. | $0.0162 per successful call |
| Onchain Bridge Ranking | List bridge protocols ranked by USD volume over a time range. | $0.0162 per successful call |
| 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 | Look up the current gas price for one EVM chain. | $0.0162 per successful call |
| Onchain Query | Query on-chain tables with structured JSON filters — no SQL text. | $0.0324 per successful call |
| 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 | 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 | 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 | Validate and cost-estimate a ClickHouse SQL query (EXPLAIN ESTIMATE) without executing it. | $0.0324 per successful call |
| Onchain Yield Ranking | List individual DeFi yield pools ranked by APY or TVL. | $0.0162 per successful call |
| 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 | Returns a DeFi protocol leaderboard (e.g. Aave, Uniswap, Lido) ranked by TVL, fees, revenue, or users. | $0.0162 per successful call |
| Search Airdrop | Searches and filters airdrop opportunities. | $0.0081 per successful call |
| Search Airdrop Activities | Lists airdrop activities with pagination. | $0.0081 per successful call |
| Search Token | Resolves an exact token ticker symbol to likely contract address candidates on supported chains. | $0.0081 per successful call |
| Search Wallet | Searches wallets by ENS name, address label, or address prefix. | $0.0324 per successful call |
| Token Dex Trades | Returns recent DEX swap events for a token contract address. | $0.0324 per successful call |
| Token Holders | Returns top token holders for a contract address. | $0.0162 per successful call |
| Token Tokenomics | Returns token unlock time-series with cumulative amounts, allocation breakdowns, total supply denominator, and unlocked-supply percentage. | $0.0162 per successful call |
| Token Transfer Counterparties | Ranked top counterparties (receivers or senders) of a token over a window — answers "who are the top receivers/senders?". | $0.0162 per successful call |
| Token Transfer Stats | Aggregate transfer-activity summary for a token over a window — total transfers, unique senders/receivers, total amount, first/last activity, and an optional daily series (include=series). | $0.0162 per successful call |
| Token Transfers | Returns recent transfer events for a specific token (ERC-20/TRC-20 contract). | $0.0162 per successful call |