H0.81 Capital (@H081CAP) header
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Private, programmable treasuries for AI agents on Solana. Proof-enforced spending limits, shielded USDG & tokenized stocks, selective disclosure.

Joined October 2026
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H081 now live on mainnet. H081 is the first account that is private, provably-bounded, and lendable, all three at once.
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H081: private financial infrastructure connecting the missing pieces of the agent economy. Projects building toward this market, with valuations from this comparison: • Kite AI ($281M): programmable payments. • Bankr ($26M): wallets and financial tools. • Arcium ($45M): confidential computing. • Griffain ($11M): delegated execution. • PayAI ($7M): agent payments. We connect privacy, spending authority and lending within one financial account layer on Solana. An AI legal assistant buying research shouldn’t need to reveal its firm’s remaining budget. An accounting agent needs enforceable spending limits. A procurement agent should prove sufficient funds without exposing its negotiating ceiling. H081 addresses those needs through: • Private USDG allowances with cryptographically enforced budgets, payment caps and expiry. • Delegation to sub-agents under tighter rules. • Zero-knowledge proofs of financial thresholds without revealing exact balances. • Borrowing against pledged payment streams without exposing the full private account. The breakthrough is making private funds usable, autonomous spending controllable, and financial claims verifiable together.
apps live here
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Hey Maverick thanks for the reply. Honestly that's the right question, and it's the one we built around. What protects you is our design. Your agent never holds your money. It gets an allowance with on-chain caps and an expiry, enforced by proof. Worst case, a compromised agent loses its allowance, never your treasury. Non-custodial, so your keys stay yours. And lenders are backed by a safety pool that's already live
Replying to @DavidBajky
where agents park money is lowkey the boring question that matters most lol. a private bank for agents holding usdg sounds wild. who's liable when an agent's account gets drained?
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We have submitted our application to @coingecko ID: CL0411260034
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We’ve officially submitted H081’s applications to Solana Demo Day London and Dubai Demo Day with @superteamae. Two opportunities to connect H081 with Solana founders, investors and builders creating the next generation of agent applications. We hopefully get to present H081's private banking infrastructure publicly ! The opportunity runs both ways: • Solana builders get tools for private USDG banking, controlled agent spending and lending backed by zero-knowledge proofs. • We get a chance to reach potential integration partners, lenders and early users across both ecosystems. • Both events get a concrete demonstration of agent finance, with mainnet transactions and a fully repaid private loan cycle to show. Our npm packages, MCP server and x402 services give interested teams a way to start building after the demo. Both applications submitted. Selection pending. We’ve built the infrastructure. London and Dubai could help us put it in the hands of the people who can take it further.
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H081 Capital is now approved and listed on DefiLlama Our page tracks deposits, staking, fees and revenue on Solana. defillama.com/protocol/h081-… What’s on the page • TVL, USDG deposited in the H081 bank vault and lender escrows, read directly from Solana. • Staking, H081 held in capacity-stake and safety-pool vaults, shown separately. • Fees and revenue, the 0.20% relay fee per private withdrawal or spend, with a 0.05 USDG minimum, and the 0.25% origination fee per funded loan. These fees go to the protocol’s Squads multisig treasury which go to buybacks. • Listed under Lending, on Solana. How we got listed We built two open-source adapters to read vault balances and track USDG entering the treasury’s designated fee account. DefiLlama’s maintainers reviewed and merged both on November 3, less than a day after submission. Why it matters for H081 • Public verification. Anyone can inspect the on-chain data and open-source counting logic behind our deposits and fees. • Discoverability. Builders, lenders and users can find and evaluate H081 alongside other Solana lending protocols. • Measurable growth. Changes in deposits and fee generation become part of a public record. For H081, this makes aggregate protocol activity publicly measurable while individual account balances and spending policies stay private. Developers and lenders can evaluate deposits and fee generation without needing access to an agent’s private finances. What H081 does H081 Capital is a private bank for AI agents on Solana. Owners deposit USDG into shielded accounts and give agents spending policies defining how much they can pay and how often. Allowances can stream over time, and agents can access loans backed by pledged collateral. Private withdrawals, spends and funded loans generate the protocol fees tracked on DefiLlama. h081.xyz
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Here's a recap of what we've built so far. Private banking for AI agents, from private accounts and proof-enforced spending to our first fully repaid loan. We’ve also shipped developer tools and paid x402 services. What we’ve built 🧵
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The safety-pool program is deployed, with an H081 deposit executed on-chain. It is designed to back covered lending risk through pool shares.
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Public receipts cover core banking operations, disclosure verification, loan opening and funding, safety-pool deposits and capacity staking. Agents need to hold funds privately, spend within defined rules, prove financial conditions and access capital. We’re building those capabilities into one system
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H081’s private financial infrastructure now has on-chain evidence across its core banking operations, including a fully repaid private loan. All transactions are provable on-chain now. See txns below. Private deposits. Agent allowances. Payments. Zero-knowledge disclosures. Withdrawals. Capacity staking. Safety-pool deposits. And now: a private lending cycle completed from opening through full repayment on mainnet. The significance is privacy with verifiability. An agent can use its funds and prove specific financial conditions without giving counterparties access to its entire private account. Here are the mainnet receipts behind the system. → PRIVATE ACCOUNTS THAT AGENTS CAN USE USDG enters H081’s shielded pool. An agent receives a private allowance and can spend under the policy carried inside its note. A public payment shows its recipient and amount. It does not publish the treasury’s remaining private balance or its entire spending policy. Private deposit: solscan.io/tx/5tZ2AJXisuirk6… Agent allowance granted: solscan.io/tx/3MFurTW4kzTHbF… Agent payment: solscan.io/tx/3xfgjbADPbHVQD… → PROVE WHAT’S NEEDED. KEEP THE REST PRIVATE. A counterparty may need evidence that an allowance meets a minimum threshold. It does not need the exact balance or the complete account history. H081’s selective disclosure mechanism makes that distinction possible: a zero-knowledge proof establishes a specific condition, bound to a named audience. Here is a disclosure proof verified on-chain: solscan.io/tx/SeDth9QZ6Cv6xP… → ACCESS CAPITAL WITHOUT OPENING THE ENTIRE ACCOUNT Our first funded loan, Loan #2, has now been fully repaid. An agent pledged a share of its future payments. The lender verified the required stream conditions through a zero-knowledge proof, without receiving the agent’s full private balance or spending policy. The funding transaction settled: • 1 USDG from the lender. • 0.9975 USDG to the borrower. • 0.0025 USDG to the H081 treasury as the 0.25% origination fee. The borrower subsequently repaid the loan in full on-chain. A small-value demonstration, completing the cycle: Open → pledge → verify → fund → repay. Loan opened: solscan.io/tx/5xnZCvhPVjMihm… Agent pledged: solscan.io/tx/64v5vMhT2VVALW… Stream proof verified and loan funded: solscan.io/tx/4mrzBgZeCs5z3b… → WITHDRAW FROM THE SHIELDED POOL The banking flow also includes an executed withdrawal, moving funds out of the pool. Withdrawal: solscan.io/tx/4wLDLD27A62uAk… → TOKEN UTILITY, EXECUTED ON-CHAIN H081 capacity staking supports access to agent desks and shielded-volume capacity. The safety pool is designed to back covered lending risk. These transactions demonstrate staking and depositing into those programs. Safety-pool deposit: solscan.io/tx/5YvMo2PxReiHda… Capacity stake: solscan.io/tx/3JfUs3yhjAEhsg… → THE BIGGER PICTURE An agent should be able to pay a supplier without exposing its runway, demonstrate financial capacity without revealing its exact balance, and obtain financing without surrendering its entire private account history. That is what we’re building H081 around: private financial state, selective disclosure and publicly verifiable execution. These receipts document core operations on mainnet. Live on Solana. Source code public h081.xyz github.com/uylesss2/h081-cap…
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H081’s private banking services are now available to AI agents through x402 on Solana.
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