Real-time DEX swaps, liquidity, and wallet data through one API.

The documented API includes pair-level TVL snapshots, live DEX swap and TVL WebSocket streams, historical DEX OHLCV for supported symbols, and native-coin plus ERC-20 wallet balances on supported EVM networks.

The current public TVL, WebSocket, and wallet documentation lists Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, and Solana. Chain support may differ by endpoint, pair, and entitlement, so the relevant endpoint documentation is the source of truth.

Pair-level TVL REST requests use a chain path and a hyphenated pair such as polygon/WETH-USDC. WebSocket subscriptions use a chain-prefixed identifier such as eth:WETH-USDC. Historical DEX bars currently use USD-quoted symbols such as ETHUSD.

The TVL endpoint returns the total USD value locked across the tracked pools for one token pair on one chain. It also returns the summed token reserves, the number of contributing pools, the schema version, and a timestamp. It is not a protocol-wide TVL figure.

Yes. The documented DEX Bars endpoint currently supports ETHUSD from 2021-05-05 at 1m, 5m, 15m, 30m, and 1h intervals. The supported symbol set is expected to expand, and the current documentation should be checked for exact availability.

Intervals with no qualifying swaps are omitted. SiftingIO does not generate artificial zero-price bars or fill empty buckets, so clients should treat a missing interval as no observed swap data.

The v field represents base-asset volume swapped during the bar. For ETHUSD, it represents ETH volume rather than USD notional.

The Wallet Portfolio endpoint returns non-zero native-coin and ERC-20 balances for one wallet on one supported EVM chain per request. It includes exact raw balances and human-readable token amounts. The current version does not include USD valuation, NFTs, or a multi-chain response in one call.

A WebSocket subscription first returns the latest cached snapshot and then publishes new swap or TVL frames as updates become available. Delivery timing also depends on the underlying network and data-production process, so clients should rely on the supplied timestamps rather than assume a fixed cross-chain cadence.

No. SiftingIO provides market data and analytics inputs. It does not operate a DEX, route orders, execute swaps, hold customer assets, or provide slippage or MEV protection. Clients remain responsible for any execution logic in their own systems.

The Crypto product provides aggregated prices from centralized venues. DEX & DeFi provides on-chain DEX swap data, pair-level TVL, DEX history, and EVM wallet balances. They are separate market entitlements but can use the same SiftingIO account and API-key system.

No. DEX & DeFi focuses on decentralized-exchange market activity, pair liquidity, historical DEX prices, and wallet balances. On-chain Fundamentals is a separate product for broader protocol and network metrics where available.

Send the API key in the X-API-Key header for REST requests. For WebSocket, pass the key in the ?key= query parameter or authenticate immediately after connecting. Access remains subject to the DEX & DeFi entitlement and plan limits.

Yes. Eligible enterprise customers can receive CEX and DEX market data through a FIX 4.4 session. FIX is market-data only, requires onboarding and certification, and does not include order entry.

Eligible Pro and Ultra plans include commercial use and customer-facing display subject to plan terms. Raw-feed redistribution, B2B sublicensing, custom distribution rights, and high-volume embedded use may require an Enterprise agreement.

Yes. The Free plan requires no credit card and includes 10,000 monthly REST calls, one WebSocket connection, five symbol subscriptions, one API key, and one month of historical depth for evaluation and internal non-commercial use.