API3
First-party oracle that returns oracle extractable value (OEV) to the DeFi apps using its feeds.
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API3 key facts
| Category | Blockchain oracle |
|---|---|
| Chains | EVM networks |
| Platforms | Web, API |
| Token | API3 |
| Fees | OEV Rewards: $415,593 paid to apps (homepage figure, updated monthly) |
What is API3?
API3 is an oracle network built on first-party data feeds. Its main feature is OEV Rewards: value that liquidators pay for price updates is returned to the lending protocol. Its homepage lists $415,593 in OEV rewards paid and early adopters including Morpho, Compound and Moonwell.
API3 usage
From DefiLlama (TVL) (fees users paid), updated Sep 26, 2026.
API3 pros and cons
- Returns oracle extractable value to the app that uses the feed
- 100+ data feeds on every supported chain, per its homepage
- Early OEV users include Compound, Morpho and Moonwell
- OEV rewards paid total $415,593 so far, a small sum next to the value larger oracles secure
- Feed coverage centers on lending-market prices
API3 FAQ
What is API3?
API3 is an oracle network built on first-party data feeds. Its main feature is OEV Rewards: value that liquidators pay for price updates is returned to the lending protocol. Its homepage lists $415,593 in OEV rewards paid and early adopters including Morpho, Compound and Moonwell.
How much value is locked in API3?
$20.8M according to DefiLlama on Sep 26, 2026. It is deployed on 2 chains: Ethereum, Base.
How much does API3 cost?
OEV Rewards: $415,593 paid to apps (homepage figure, updated monthly), according to API3’s own page (checked Sep 26, 2026).
How much do users pay API3 in fees?
$106,802 over the last 30 days, according to DefiLlama on Sep 26, 2026.
Sources
How this page works
Sources: API3: official site, API3: Home, DefiLlama. Data as of Sep 26, 2026.
Not affiliated with any project listed. Educational content, not financial advice.