Api3 vs OpenZeppelin

Api33.7/5

VS

OpenZeppelin4.5/5

Feature	Api3Visit	OpenZeppelinVisit
Ratings
Our score	3.7/5	4.5/5
User rating	No reviews yet	No reviews yet
Reliability	3.5	5.0
Chain coverage	4.0	4.5
Pricing	4.0	4.0
Developer experience	4.0	5.0
Support	3.0	4.0
Specs
Services	Oracle	Developer tooling
Chains supported	19	10
Free tier	Not disclosed	Yes
Pricing from	Not disclosed	Free for open-source tools
Enterprise SLA	Not disclosed	Yes
Open source	Yes	Yes
Token	API3	Not disclosed
Free tier limits	Not disclosed	Open-source contracts, Relayer, and Monitor under AGPL-3.0 and MIT licenses
Company
Founded	2020	2015
Headquarters	—	—
Investors	Accomplice, Buck Stash, Cashican People LLC, CoinFund +8	Not disclosed
Strengths and weaknesses
Pros	Uses first-party oracles operated directly by API providers Returned over $416,000 in captured OEV rewards to protocols as of October 2026 Open-source smart contract code with audit reports available on GitHub Broad network coverage deployed across more than 15 EVM blockchains	Core contract libraries and tooling are free and open source Used by 9 of the top 10 stablecoins and top 10 tokenized funds Supports EVM networks along with Solana, Stellar, and TRON Holds SOC 2 Type II and CCSS institutional security compliance
Cons	Total value secured remains under $15 million as of October 2026 Protocol governance is tied to the API3 token	Hosted Defender SaaS shuts down permanently on July 1, 2026 Self-hosting Relayer and Monitor creates internal devops maintenance overhead Custom security audit and Continuous Security advisory fees require institutional quotes
Best for	Lending protocols minimizing MEV leakage, Developers needing source-signed data feeds, Autonomous agents purchasing API data	Smart contract developers deploying standard tokens, Institutions building regulated stablecoins and funds, Teams needing automated, self-hosted transaction relaying

Highlighted cells show the stronger value in each row. Data comes from each provider's site and public sources; check details before you sign up.

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