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The Vaults.fyi API gives you standardized market data for over 1,000 DeFi yield vaults across 80+ protocols and 20+ chains. Instead of building and maintaining one-off integrations per protocol, you get a single endpoint that returns consistent, comparable data for every supported vault. Data is indexed on-chain on an hourly basis, so you always have current metrics alongside the full historical record you need for backtesting and trend analysis.

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What data is available

The table below shows the key data fields returned across market data endpoints.
FieldDescription
apyCurrent annual percentage yield, normalized across protocols
apy1d / apy7d / apy30dRolling average APY over 1, 7, and 30 days
tvlTotal value locked in the vault, in USD
feesProtocol fee breakdown (management, performance, etc.)
reputationScoreVaults.fyi risk and reputation score for the vault
rewardsClaimable reward tokens and estimated rates
capacityMaximum deposit capacity, if enforced by the protocol
flagsVault-level signals such as paused state or deprecation
APY, TVL, fees, and reputation scores are computed consistently across all protocols. This means you can safely sort and compare vaults from different protocols side by side.

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Endpoints

Vault discovery

Filter and sort vaults by APY, TVL, protocol, network, asset, reputation score, and more.

Single vault detail

Full detail on a specific vault including current and historical APY, TVL, fees, rewards, and risk scores.

Historical data

Time-series APY, TVL, and asset price data over configurable date ranges and granularity.

Benchmarks

USD and ETH benchmark rates aggregated across top vaults for performance comparison.
You can also query reference data — supported networks, tokens, and protocols — using GET /v2/networks, GET /v2/tokens, and GET /v2/protocols. These are useful for building filter dropdowns and validating user input.

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How data is sourced

Vaults.fyi indexes vault state directly from on-chain contract calls, not from third-party price feeds or protocol-reported numbers. This approach means:
  • Hourly updates. Vault metrics refresh every hour from on-chain data.
  • Consistent methodology. APY is calculated using the same formula across all protocols, so comparisons are meaningful.
  • Historical depth. Time-series data is available for backtesting, charting, and reporting without you needing to store it yourself.
Use the apy7d or apy30d fields rather than apy when you want to smooth out short-term volatility and show users a more stable yield estimate.

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Coverage

One integration gives you data across 1,000+ vaults, 80+ protocols, and 20+ chains. For the full list of supported protocols and networks, see Supported Protocols and Networks.