Terms of Service

Summary

What the service is

Tendril provides a website and an open, on-chain program on the Solana blockchain (the “Vault”). The Vault lets you deposit USDC, supplies it to a single Kamino Lend reserve, and records two separate values for you: your principal and the interest it earns. The Vault only lets interest be spent, and only lets you, as the owner, withdraw principal. These rules are enforced by the program itself, not by our website.

The website is an interface to the Vault. You can also interact with the Vault directly on-chain without it. We don’t operate the Solana network, the USDC token (issued by Circle) or Kamino Lend, and we are not affiliated with any of them.

Eligibility

You must be at least 18 years old and legally able to enter into these terms. You may not use Tendril if you are located in, or a resident of, a country or region subject to comprehensive sanctions, or if you are on any sanctions list. You are responsible for complying with the laws that apply to you, including tax.

Accounts & wallets

Your account is identified by your wallet address. You sign in by signing a message with your wallet. This proves ownership and does not send a transaction. Each wallet address corresponds to one account. You are solely responsible for the security of your wallet, seed phrase and devices. We cannot recover access to a wallet or reverse transactions.

Deposits, interest & withdrawals

• Deposits become principal credited at the value of the reserve shares actually received. Rounding is in the Vault’s favour and amounts to fractions of a cent.
• Spending draws only from accrued interest. A spend larger than your available interest is rejected in full. Spends require fresh lending-market data and are refused if it is unavailable.
• Withdrawals return principal to the wallet that deposited it. They can never be paused by us. They depend on free liquidity in the lending market. If the market is fully utilised, a withdrawal may have to wait, or you can close your position in kind and receive the lending market’s own receipt tokens.
• Early access. Deposits are capped per wallet and in total. We may pause new deposits and spends (never withdrawals) to protect users, for example if we detect a problem in the lending market.

Risks

Using Tendril involves real risk of loss. In particular:

• Smart-contract risk. The Vault, Kamino Lend and the token programs may contain bugs. The Vault has not yet been externally audited.
• Lending-market risk. If borrowers default or a market suffers a loss, the value of your position can fall below your principal. The Vault then lets you withdraw your share of what remains.
• Liquidity risk. Withdrawals can be delayed when the lending market is highly utilised.
• Stablecoin risk. USDC may lose its peg or be frozen by its issuer.
• Rate risk. Interest rates change constantly and can fall to zero. Any rate shown is a live estimate, not a promise.
• Network risk. Solana can experience congestion or outages.

Fees

Tendril currently charges no deposit, withdrawal or management fee. You pay Solana network fees for your transactions. The lending market keeps a share of borrower interest as its own protocol fee, which is reflected in the rate you see. Rounding remainders of a few base units per spend are retained by the Vault. Any future fee will be shown before you sign.

The $TNDRL token

$TNDRL is a separate token. Your deposit and its interest never touch $TNDRL, and holding $TNDRL gives no claim on deposits, interest or revenue. Nothing on this site is an offer to buy or sell any token, and nothing here is investment advice.

The card

The Tendril Visa card programme is provided by Rain (Signify Holdings, Inc.). Cards are issued by Rain’s licensed issuing partners in their respective jurisdictions pursuant to a licence from Visa. Tendril is not a bank and does not issue cards itself.

Ordering. You can order one physical card per account from the Card page in the app by giving the name to print on the card, your full legal name, contact details and a delivery address. You must give accurate details. Rain and its issuing partner decide whether to issue a card and may ask you to verify your identity first. We may decline or cancel an order, for example if the details can’t be verified, the delivery country isn’t supported, or issuing the card would break the law or sanctions rules. When you place an order, you also agree to the cardholder terms of Rain and the issuer, which are provided with the card.

Delivery. Estimated delivery is up to 5 business days within Europe and 5–15 business days to other countries, counted from when your card is sent for production. These are estimates, not guarantees. Customs, postal services and identity checks can add time.

Changes and cancellation. You can change your details or cancel the order in the app until the card goes into production.

Spending. Card purchases are paid from the interest your deposit has earned. A purchase larger than your spendable interest is declined and is never covered from principal. Keep your card and PIN safe and report a lost or stolen card straight away via X account announced soon.

Acceptable use

Don’t use Tendril for anything illegal, including money laundering, sanctions evasion or fraud. Don’t attempt to disrupt the service or exploit it. We may restrict access to the website for addresses associated with illicit activity. The on-chain Vault is permissionless and cannot be restricted by us.

Disclaimers & liability

The service is provided “as is” and “as available”, without warranties of any kind. To the maximum extent permitted by law, we are not liable for indirect or consequential losses, or for losses caused by blockchain networks, third-party protocols, wallets, stablecoin issuers, or your own actions. Nothing in these terms limits liability that cannot be limited by law.

Changes & termination

We may update these terms. Material changes will be announced on this page with a new date. You can stop using the service at any time, and your on-chain position always remains withdrawable by your wallet. You can delete your account data from your account page.

Contact

Questions and support: X account announced soon. See also our Privacy Policy.