Tally

🚀 @tallyvault is officially in the @colosseum Arena! Getting to the finish line of a global hackathon is a marathon. I’m incredibly proud to announce that Tally has successfully been accepted into the official judging directory for the Colosseum Frontier Hackathon! To put the scale of this competition into perspective, the arena was absolutely packed this year: 🌍 165 countries represented 👨‍💻 19,040 builders registered 🛠️ 2,857 final product submissions Out of nearly twenty thousand initial registrants, we are thrilled to be among the final 2,857 teams that successfully built, integrated, and shipped a completed product before the buzzer. What we built: Tally is a mobile Solana wallet that turns your everyday contactless bank card into a hardware security key via NFC. By eliminating vulnerable seed phrases in favor of the physical card already in your pocket, Tally provides uncompromising, hardware-grade security for everyday users, while seamlessly doubling as an on-chain policy engine for AI agents that need to spend securely in the real world. Join the Early Beta: We are moving fast, and we want you to try it. Early beta testing for Tally is opening soon! Starting tomorrow, you will be able to apply for our waitlist to be among the very first to experience hardware-level security right from your phone. Keep an eye out for the link! What’s next? Over the next few weeks, judges will evaluate the directory to select up to 10 final startups to enter the Colosseum Accelerator Program and secure a $250,000 venture investment. A huge shoutout to the @SuperteamBLKN community and everyone pushing the boundaries of what's possible on Solana. We’re ready for the next stage of the pipeline! #Solana #Web3 #Colosseum #FrontierHackathon #TallyWallet #BuildInPublic

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Imagine you give your trading agent $1,000 in USDC to spend on fees and API calls for the next hour. Today, when that agent goes and pays for something, the service it's paying just sees "some wallet sent some USDC." There's no way for them to know whether you actually said yes to that spend, or whether the agent went off the rails. What @tallyvault now does, every time you tap your card: your phone produces a tiny signed slip. Think of it like a notarized receipt, but for an agent's permission to spend. The slip says, in cryptographic terms anyone can check, "this exact human, with this exact card, authorized this exact amount, for this exact task, at this exact moment." The agent carries that slip with it. When it goes to pay an exchange, a price feed, a bridge, or another agent, it shows the slip alongside the payment. The receiving side reads the slip and knows: this isn't a script running wild, this is an agent whose actions trace back to a real human tap. You already know what it means to sign a transaction. This is the same idea, except instead of signing money out of your wallet, you're signing a permission slip that travels with the agent. Why a trader cares: If you start dealing with counterparties that demand proof of human authorization (exchanges getting more strict, agent-to-agent protocols, anything regulated), your agent has the receipt and gets through. Agents without it get blocked. Every spend leaves an audit trail with your literal biometric fingerprint behind it. If something gets disputed, you can prove what was authorized and what wasn't. If you chain agents together, agent A pays agent B pays a DeFi protocol, the receipt travels the whole way down. The last service in the chain can confirm a real human is at the root, not a runaway script ten hops back. The simplest one-liner: every @tallyvault card tap now produces a tamper-proof receipt that proves a real human did the tap. The receipt travels with your agent. Anyone downstream can verify it without calling you. That's it. The card was always the key. Now it also produces a stamped permission slip every time you use it.

A wallet where your contactless card IS the signing key. AI agents can request budget. Users tap to authorize. No keys stored. No passwords. Just a tap. Submitted to the @colosseum Frontier Hackathon. x402 live on @solana mainnet. tally.lll.mk

Who is entering the @colosseum arena today? Pitch what you're building 👇

A wallet where your contactless card IS the signing key. AI agents can request budget. Users tap to authorize. No keys stored. No passwords. Just a tap. Submitted to the @colosseum Frontier Hackathon. x402 live on @solana mainnet. tally.lll.mk