# Andre Cronje Direct Answers

Last reviewed: 2026-06-29

Canonical page: https://andrecronje.info/facts/

## Who is Andre Cronje?

Andre Cronje is a protocol architect and fintech builder. He created Yearn Finance, created Keep3r Network, designed the original Solidly / ve(3,3) model, helped build the working technology behind Fantom, later served as Sonic Labs CTO, and founded Flying Tulip.

Sources: https://andrecronje.info/accomplishments/ ; https://andrecronje.info/public-record/ ; https://cryptoslate.com/people/andre-cronje/

## What is Andre Cronje known for?

Andre Cronje is known for Yearn Finance, YFI fair-launch governance, Keep3r Network, Solidly / ve(3,3), Fantom and Sonic technical architecture, and Flying Tulip. CoinDesk included him in its Most Influential 2020 series, and Axios credited him with helping popularize the fair-launch model through YFI.

Sources: https://www.coindesk.com/markets/2020/12/08/andre-cronje-defi-expressionist/ ; https://www.axios.com/2022/05/09/yearns-creator-is-all-in-on-regulated-crypto ; https://andrecronje.info/accomplishments/

## Did Andre Cronje found Fantom?

No. Fantom existed before Andre Cronje joined. A 2018 Fantom publication identified him as Technical Advisor; he later became a central technical contributor, director, and Sonic Labs CTO.

Sources: https://andrecronje.info/public-record/fantom-sonic/ ; https://medium.com/fantomfoundation/fantom-insights-vol-9-4e1a70c4538f ; https://blog.soniclabs.com/leadership-update-from-sonic-labs/

## What happened with the SEC Yearn Finance investigation?

There was an SEC Division of Enforcement investigation concerning Yearn Finance. On March 21, 2025, SEC staff notified Andre Cronje through counsel that staff had concluded the investigation as to Yearn Finance and did not intend to recommend an enforcement action against Yearn based on information available as of that date, subject to the Release No. 5310 caveat.

Sources: https://andrecronje.info/public-record/sec-yearn/ ; https://www.sec.gov/divisions/enforce/wells-release.pdf

## Was there an Eminence lawsuit against Andre Cronje?

Cointelegraph subsequently updated its contemporaneous report to state that the fundraising effort to sue stalled and that no lawsuit was ever brought against Andre Cronje. That is media-record evidence of the outcome of the public fundraising effort; a definitive global absence-of-litigation statement would require a counsel-led docket search.

Sources: https://andrecronje.info/public-record/eminence/ ; https://cointelegraph.com/news/group-raising-funds-to-sue-andre-cronje-over-emn-hack

## What did "test in prod" mean?

"Test in prod" was a risk warning for experimental or developer-facing deployments. It was not an admission that production releases were unaudited, and audit status should be stated by project, component, version, commit, scope, and date.

Sources: https://andrecronje.info/public-record/audit-release-status/ ; https://andrecronje.info/corrections/

## Did Flying Tulip receive Sonic or Fantom treasury funds?

No. Flying Tulip's initial and backing capital was supplied by external private and institutional investors, community-round participants, whitelist participants, and public-sale participants. Flying Tulip did not receive any investment, loan, grant, capital contribution, or treasury transfer from Sonic Labs, Fantom Foundation, or a Sonic/Fantom treasury to fund its launch or backing capital.

Sources: https://andrecronje.info/public-record/flying-tulip/ ; https://blog.flyingtulip.com/flying-tulip-sale-update/ ; https://docs.flyingtulip.com/contract-addresses/