John Henry (john04star)

Nigeria

Agents Assemble - The Healthcare AI Endgame

Online

Build Interoperable Healthcare Agents at the Intersection of MCP, A2A, and FHIR

$25,000 in prizes
May 11, 2026 11:00 PM EDT to submit
3018 participants

Ripple CBDC Innovate

Online

You are invited to build or update an original fintech or payments solution utilizing Ripple’s CBDC solutions. Winners of Phase 1 will be invited to a Winners Only Phase II event!

$200,000 in prizes
Winners announced
1186 participants

Fantom Hackathon Q2 2023

Online

Build quick and secure apps on Fantom Mainnet

$306,000 in prizes
Winners announced
1079 participants

Celo's Make Crypto Mobile Hackathon

Online

Make Crypto what it should be; — Mobile. Accessible. For everyone.

$2,572,000 in prizes
Winners announced
2325 participants