callsheet.predictions for hackathons
round 01
callsheet · Colosseum Cypherpunk Hackathon

Projects.

1,574 projects.

Cascade

DeFi, Consumer Apps

A fast and secure decentralised fundraiser platform.

CashmereLabs

DeFi, Stablecoins

Middleware infrastructure for zero-slippage one-click native omnichain transfers.

Casspr-x

Consumer Apps, Undefined

AI-Powered content generation that learns your voice, amplifies your message, and grows your audience. https://casspr.buxa.ai/

Cat Crew (catfi.xyz) — the first AI-powered game on Solana

DeFi, Consumer Apps, Infrastructure

We developed Cat Crew (catfi.xyz) — the first AI-powered game on Solana — combining meme culture, GameFi fun, and AI economics. Users can earn 2x rewards by feeding cats in Cat Crew. Nearly 10,000 players from Dubai, Korea, Vietnam, and China have joined, backed by top crypto investors from the Middle East and Korea.

CatScope

DeFi, Infrastructure

CatScope is the ultra-low latency MEV toolkit for Solana, built as a full package with both read and write. While most systems focus only on fast transaction execution, CatScope also delivers the missing piece: reliable, real-time reads directly from the validator. CatScope changes this by streaming state and executing from directly in the validators. Built as a fully onchain auction-based marketplace, it makes “see first, shoot first” execution accessible to anyone. Validators earn more, traders compete fairly, and Solana MEV flow becomes faster, more transparent, and more profitable.

Caudal

DeFi, Consumer Apps

Caudal is a launchpad for prediction markets. Everyone can use Caudal to launch their own markets and earn from them, the same markets share liquidity aggregated by Caudal. We aim to enable influencer and creators to build their own markets, allowing them to monetize their influence through the betting revenue generated from their market links.

Caverns And Capybaras

RWAs, Consumer Apps, Undefined

play here: https://tailsgamedev.itch.io/caverns-and-capybaras Caverns and Capybaras is a game. Specifically, it is a card game roguelike deckbuilder inspired by tabletop RPGs. We were into selling the game on Solana chain, as this way the buyer could resell it later on, like people used to do with physical games.

Celebrity Exchange

DeFi, Consumer Apps

Celebrity Exchange is a full-stack decentralized application (dApp) built on the Solana blockchain that allows users to create, trade, and manage celebrity-themed tokens using an automated market maker (AMM) with bonding curve pricing. live one https://exchange.arbab.fun

Cellar

DeFi, Consumer Apps, Undefined

Never lose your keys or miss alpha again.

Cellmesh

Consumer Apps, Infrastructure, Undefined

A decentralized mobile hotspot network on Solana. Anyone can turn their smartphone into a network node, share internet via Wi-Fi or mobile hotspot, and submit on-chain proofs of coverage and usage. CellMesh validates each user’s contributions using real device data and smart contracts, then instantly rewards nodes with SPL tokens. Live coverage maps and transparent on-chain rewards unlock new mobile access in underserved areas—making everyone a stakeholder in next-gen mobile infrastructure.

Cerebrum

Consumer Apps, Undefined

Cerebrum is a superintelligent orchestration layer that transforms scattered AI models into a unified agentverse. It autonomously selects, routes, and executes Hugging Face models—spawning transient runners for one-shot inference and persistent agents for continuous workloads. By managing caching, inter-agent communication, and adaptive persistence, Cerebrum bridges the gap between coordination and computation — making AI systems think and act as one.

Certana

Consumer Apps, Infrastructure, Undefined

Certana is redefining digital authenticity in the AI era. Built on the Solana blockchain, it combines machine learning, frequency analysis, and algorithmic fingerprinting to create robust proofs of originality that stay valid even after cropping, compression, or reposting. Unlike traditional NFT or metadata systems, Certana is extremely easy to use. Users can upload, protect, and verify with a single click on our website, mobile app or browser extension. With zero-knowledge proof and instant concurrent verification, Certana makes proving what’s real fast, private, and effortless, bringing trust back to digital content.

CertifiedRubbish

Consumer Apps, Undefined

Bringing waste management and disposal on-chain for immutable and auditable records. Our Digital Waste Tracking solutions are 100% compliant with government regulation, and are 90% quicker and efficient than the old paper counterpart. It's time to revolutionise the sector and bring Solana into the forefront of the waste management sector.

CertifyOnChain

Consumer Apps

Issue and verify digital certificates on the Solana blockchain, enabling organizations to prove authenticity and individuals to securely own and share their verified achievements.

Chain Cast (a human friendly solana layer )

Consumer Apps, Infrastructure, Undefined

Imagine you’re a curious merchant who just added Solana as a payment option. A customer pays you in SOL and now you’re stuck refreshing [explorer.solana.com](http://explorer.solana.com/), hoping to see a confirmation (if you even know what that means). Or maybe your friend just sent you some tokens same process, same confusion. Wouldn’t it be easier if your favorite app simply said, “You received 2.4 SOL from Alex”? That’s what we’re building a human-friendly Solana layer that turns blockchain data into readable, instant insights and lets you act on them: manage escrows, stake, vest, mint, airdrop, and more. Because Solana shouldn’t feel complicated it should just work for humans.

Chaindex

DeFi, Infrastructure

chaindex is a real-time reliable blockchain indexer, built on ReifyDB that streams data incrementally. This enables us to turn raw blockchain data into actions in milliseconds.

Chain Proof

Infrastructure

Chain Proof is an onchain trasparent and encryption protocol that helps distinguish real projects from memecoins by enabling open, verifiable disclosures and community validation. Using AES-256-GCM Implementation to create an encryption layer for developers to deploy to the solana devnet Technical Details: https://docs.google.com/document/d/1KtWdnA7W9lTTKvUYV8BrkNA9ljbplk3_xfyz3BMG6Qg/edit?usp=sharing

ChainSight

DeFi, Consumer Apps

ChainSight is a browser extension that auto-detects contract & pair addresses from X posts, verifies them with DEX data, and shows instant top-pair info (price, volume, liquidity, market cap, age). Features include a CA history tracker, one-click copy, leaderboards for hottest coins & callers, real-time notifications, and advanced analytics.

Chain Walker

Consumer Apps, Stablecoins

a Web3 fitness platform that rewards users with a stablecoin pegged to the Kazakhstani tenge for their steps. The goal is to promote an active lifestyle and drive adoption of digital tenge through the simple concept: move to earn

Chameleon

DeFi, Consumer Apps, Undefined

Chameleon - helps solana traders take real profits: fewer mistakes, fewer scams, smarter decisions. AI analytics, DEXes, launchpads

CHANIMOVE

DeFi, RWAs, Consumer Apps

ChainMove enables crypto users to earn passive income by co-owning tokenized transport vehicles in Africa, connecting investors with vetted drivers through a transparent, blockchain-powered platform.

Charting

DeFi, Consumer Apps, Undefined

Charting is a web terminal for "LPing on Chart" - 1) Visualize Liquidity - 2) Aggregate Pools - 3) Earn More Fees New UX with live chart will boost SolFi market

ChatPay

Consumer Apps, Stablecoins, Undefined

ChatPay provides AI Sales and x402 Accounts for Merchants. ChatPay is the first platform that lets merchants deploy an AI-powered sales assistant on WhatsApp which can: Chat with customers Answer product questions Help them choose the right item Place an order And complete payment - all in stablecoins on Solana

Chatter

Consumer Apps, Stablecoins, Undefined

Chatter unlocks AI-powered social checkout for modern merchants from Instagram sellers to traders in physical stores. Merchants can list products, accept stablecoin or local payments, auto-map transactions via AI, and retain customers through smart loyalty and referral systems, all inside their existing social channels.

Checkmate

Infrastructure

Every chess player knows Stockfish, its the world's strongest open-source chess engine. It's analyzed millions of games (running locally or on centralized servers), calculated billions of positions, and has become the gold standard for all chess computations. What if we could build a chess engine that runs entirely on solana validators? What if every move was validated onchain, every position stored in a pda, and the entire engine operated trustlessly across this distributed network. We just made it happen on Solana.

Checkmates

DeFi, RWAs, Consumer Apps

@EnternetAi is building an web3 Social economy (Checkmates) we plan to build on solana network to allow users to monetize their content and trade funds via the platforms dex…after implementing solana we will diversify into additional blockchain environments

cherry.fun: Solana Messenger

DeFi, Consumer Apps, Infrastructure

cherry.fun is the number one messaging app for Solana: if you have a wallet, you can message any wallet: 1:1, in public groups, and in exclusive gated communities! Cherry is not just a messenger! We are bringing web3 identity, DeFi and secure OTC deals to all Solana users. Check it out on the App Store, Google Play and Solana Mobile dApp Store. Our vision is to connect everyone across Solana and other blockchains and we'll drive growth through strategic partnerships with top web3 communities. We’re exited founders with deep Solana experience and Silicon Valley engineering background.

Chest

DeFi, Consumer Apps, Undefined

Billions in crypto trades start in Telegram, but coordination doesn’t. Chest brings it on-chain — turning any Telegram group into a multiplayer trading vault. Create shared wallets, pool funds, vote on proposals, and execute trades together — all from chat. Built on Solana for speed, transparency, and trustless collaboration.

chewieAI

DeFi, Consumer Apps, Infrastructure

DeFi is too complex. ChewieAI is an onboarding copilot that explains, guides, and converts users — in plain language, inside the dApp. Unlike generic chatbots, it actually understands protocol logic and user context — helping visitors complete actions and become active users. It bridges the gap between users and instant access to the knowledge they need, redefining how DeFi protocols drive adoption.

ChickChain part of the AgroLink Ecosystem

Infrastructure, Undefined

ChickChain—Tokenizing the Chicken Industry on Solana Part of the AgroLink Ecosystem Our team is supported by SuperTeamKz. Participate in global arena