callsheet.predictions for hackathons
round 01
callsheet · Solana Frontier Hackathon

Projects.

2,858 projects.

Brew It!

Gaming

Brew beer On-Chain using Ingredient NFTs, then either Age them for rewards or burn them for a real beer at our IRL location or participating brewery.

Brix

Payments & Remittance

Brix is an enterprise-grade payment infrastructure connecting Brazil’s 150M+ Pix users directly to the Solana ecosystem. We enable merchants and dApps to accept frictionless local fiat payments while settling instantly in digital assets via atomic onchain composability. By completely abstracting away wallets and crypto exchanges for the end-user, Brix acts as the ultimate gateway for mainstream adoption, providing instant cross-border liquidity, and zero-friction onboarding for Solana.

Brix

Real World Assets (RWA)

Brix tokenizes Brazilian rental receivables into an on-chain vault on Solana, with the rate immutably written into the smart contract at signing. It solves two sides of a broken market: (1) landlords wait 12 months to collect rent they already have under contract — and off-chain fintechs change the rate between quote and signing (the real market practice); (2) DeFi investors have no access to real yield backed by Brazilian RWA — Goldfinch fell from $103M to $1.6M TVL and Credix went quiet, both

Broker.Io

Real World Assets (RWA)

This is a marketplace, built on the solana platforms to support second speed transactions, multi-party brokerage for high end luxury watches. Want to buy a Rolex and own the documents, maybe have a third party look over rights to asset? Distribute funds, in a fast transaction, and proof of receipt. We want to build a welcoming platform for business owners to sell their high end watches, and for buyers to buy/trade the best watches on the market.

Brokex Protocol

DeFi

Brokex is an onchain CFD protocol on Solana, enabling people to trade RWAs directly onchain

BTB — Beneath The Beyond

DeFi

BTB is a decentralized AI wealth management platform on Solana. Three live products on mainnet: BTB Index — AI-managed 17-asset basket. BTB Alpha — AI sets per-asset LONG/SHORT with individual leverage via Drift. +147% in 4 days, live, not a backtest. BTB Futures — perpetuals on the AI index NAV, a new derivative class. Custom Indices launching after TVL accumulation. Vanguard needs $3,000. BTB needs $1.

Bubble_G

Consumer Apps

Bubble_G is a retail commerce operating system for local shopkeepers in India. It helps retailers digitize inventory management, order processing, analytics, and customer engagement while providing customers with online shopping access and blockchain-powered loyalty rewards using a Solana-based reward layer.

Bubblegum

Markets & Exchanges

Prediction markets have a discovery problem, so we took the engine from Pump.fun and built an attention surfacing machine for prediction markets. Introducing Bubblegum, a launchpad where every question launches a token on a bonding curve — and the same token is the collateral for a YES/NO market. Two ways to trade, one ticker, instant liquidity, and reflexive upside powered by feedback loops. On Solana.

Bubblelabs

Data & Analytics

Transforming wallet addresses and transactions into interactive 2D/3D maps, making blockchain activity clear.

buddy.

Hardware & Devices

Buddy is Solana's hardware assistant, a voice-first crypto peripheral built on open hardware. You set up a PDA wallet and on-chain guardrails via the companion app with your master key. The device only holds session keys, so it operates within that walled garden and your master key never leaves your hands. the bigger bet is different device form factors where the program is the trust boundary, achieving experimentations without compromising on security

BugHyve

Marketplace Platforms

Bring testers into your app, pay only for valid findings.

BuildArena

Developer Infrastructure

Build Arena makes Solana smart contracts you can see. It is a browser-based IDE: you write Rust, and FlowForge draws the live graph of every account, PDA, and state transition as you type. AI turns plain English into code. The canvas is multiplayer, so engineers, auditors, and product managers read the same picture in real time. Live at buildarena.dev.

BuilderLens

AI Platforms / Agents

CRM + AI analyst for Web3 communities and protocols.

Built an x402-Gated Counterparty Trust Oracle

AI Platforms / Agents

A payment-gated counterparty trust scoring API for Solana wallets. Clients pay a small fee in USDC or SOL through an x402-style payment flow, then receive an on-chain trust score derived from indexed wallet balances and transaction activity. This project is designed for applications that need a simple trust primitive before interacting with an unknown wallet, counterparty, merchant, or automated agent.

BulkPay

Payments & Remittance

A mass/bulk crypto payment program(solana) that allows crypto startups / users to send out mass payments in just one click of a button, also include an automatic scheduling for recurring payments

Bumm

Developer Infrastructure

Bumm is a dev tool for Solana enthusiast and developers that lets anyone generate, deploy, and manage Solana smart contracts through natural language. No Rust, no boilerplate - just describe what you want to build. We support the full cycle: from idea to deployed contract in minutes. Now integrating as a Claude Skill, enabling contract deployment directly from Claude's interface.

Bundie

DeFi

Every trading agent claims to be smart. Bundie prices that claim. AI agents run real DeFi strategies on Solana, and prediction markets on their NAV settle automatically from on-chain state.

Bunny

Consumer Apps

Helps writers prove they created a piece of work before anyone else did. It timestamps drafts on-chain and checks for AI-generated content, giving authors a private way to verify ownership without publishing the manuscript itself.

BunnyBattle🐇

Gaming

A PvP onchain game, Battleship-style — every match and every move stored onchain, verified by ZK proofs on the client.

bu-zhai

Hardware & Devices

bu-zhai is a companion robot cat. It combines real-world interaction, on-chain identity, and agent-style task execution. It can interact with users through dialogue, help users input, and interact with users through voice and actions, maintain a persistent on-chain growth record, and, with user approval, trigger privacy-friendly cross-chain micro-payments to support small real-world tasks. It is designed as an on-chain companion agent that lives both in the physical world and on the blockchain.

BuzzShield — Pre-Action Security Intelligence for Autonomous Agents

AI Platforms / Agents

BuzzShield protects AI agents from malicious contracts before they sign. Born from a real DPRK supply chain attack (axios/Sapphire Sleet, Mar 31 2026). Live API: api.buzzbd.ai/shield/public/scan returns ALLOW/WARN/BLOCK verdicts. Trust pipeline: ATV.eth identity → BuzzShield threat scan → 11-rule scoring → MiroFish 10K-agent simulation → Wallet Guard/AION execution gate (3 schemas frozen with co-builder Aldo). 4 contracts on Base mainnet. ERC-8004 across 4 chains. Built by a chef, not an enginee

ByHuman

Developer Infrastructure

ByHuman is a provenance layer for online writing. It records the observable writing process behind a post: typed text, paste events, edits, pauses, and final text provenance, then issues a cryptographically signed receipt that readers or platforms can verify.

Bynomo

DeFi

The first binary options trading dapp where users can trade 1000+ crypto, stocks, forex, metals, commodities in 5s-1m time charts.

Bypass

DePIN

Bypass transforms idle smartphones into a decentralized residential proxy network where AI agents pay per HTTP request using USDC micropayments via x402. Every Seeker's device becomes a hardware-verified exit node, earning passive income while providing AI systems with authentic residential IPs that bypass geo-blocks and rate limits.

CacaoCash

Stablecoins

CacaoCash is a consumer payments app that lets tourists and expats pay like locals in Latin America by scanning local QR codes, without needing a local bank account. Powered by Solana and stablecoin infrastructure, it bridges foreign users into local payment rails for a seamless everyday spending experience.

cachin

Payments & Remittance

Latin America is QR-first, but foreign money is not. Tourists, foreigners, digital nomads, and freelancers paid in crypto often arrive with dollars, euros, cards, or crypto balances, while local merchants expect QR payments. Cachin lets users fund a mobile wallet globally and pay locally across LATAM QR rails. The first MVP/proof wedge is Argentina: a user can add funds through crypto, card, SWIFT, or IBAN, scan a supported local QR such as Mercado Pago or MODO, review the FX/fees/final total,

Callsheet

Consumer Apps

A prediction market for hackathons. Project owners write campaigns about their own ships, predictors seal answers, the crowd surfaces consensus winners. When judges announce, those who called it right earn callpoints, redeemable in raffles or USDC on verified prize pledges. Solves the no-signal problem: hundreds of submissions, no way to tell who's shipping. Currently 3,931 projects across 3 events. Prize pledges onchain (USDC + USDT, Solana mainnet).

Callydus Sign

Identity & Privacy

Callydus Sign is a decentralized document signing platform built on the Solana blockchain. It enables individuals and organizations to sign, timestamp, and verify documents in a transparent, tamper-proof, and permissionless way — without relying on a centralized authority to guarantee authenticity.

Calma

DeFi

Calma is a purpose-built lending protocol optimizing capital efficiency focused on RWA. We solve three critical problems: suboptimal interest rate curves, dormant RWA utilization (stuck at 3%), and liquidity crises. Our solution: dynamically optimized curves tailored for low- and high-volatility assets (95%+ utilization target), perpetual withdrawal queues that prevent lockouts, and fixed-rate lending mechanisms enabling institutional-grade predictability.

Calmledger

Healthcare Tech

A mental health platform for web3 enthusiasts.