ton

Decentralized finance is changing how people interact with digital assets. Instead of relying entirely on centralized platforms, users can explore blockchain-based tools that allow them to exchange tokens and participate in decentralized markets. Within the TON ecosystem, STON.fi provides an example of how decentralized exchanges can make these activities accessible.
How Do Token Swaps Work?
A token swap allows someone to exchange one cryptocurrency for another without using a traditional centralized exchange. On STON.fi, users can interact with supported tokens on the TON blockchain through a compatible wallet.
Before confirming a swap, users should carefully review the selected tokens, the estimated amount they will receive, applicable fees, and the transaction details. Blockchain transactions are generally irreversible, so checking every detail is an important habit.
Understanding Liquidity Pools
Liquidity pools are an important part of many decentralized exchanges. They contain token reserves that facilitate exchanges between users. Liquidity providers contribute supported assets to a pool and may receive a share of trading fees, depending on the pool’s rules.
However, providing liquidity is not risk-free. Token prices can change significantly, and impermanent loss may affect the value of deposited assets compared with simply holding them. Users should understand these risks before committing funds.
Why Wallet Security Matters
Self-custody gives users control over their wallet keys, but it also makes security their responsibility. Never share your recovery phrase with another person or enter it on an untrusted website. Always verify official links and confirm that a transaction matches your intentions.
The Bigger Picture
STON.fi illustrates how decentralized exchanges contribute to the development of the TON DeFi ecosystem. Beyond exchanging tokens, understanding liquidity, transaction costs, wallet security, and smart-contract risks helps users make better-informed decisions.
The most valuable way to explore decentralized finance is through education and careful research. Learning how these systems work is just as important as understanding their potential benefits.
What do you think is the biggest challenge for newcomers entering TON DeFi: wallet security, liquidity risks, or understanding token swaps?
#STONfi #TON #defi

Decentralized finance is about giving users more control over how they interact with digital assets. On the TON blockchain, STON.fi is an interesting example of how decentralized exchanges can make token swaps more accessible.
One important concept in DeFi is self-custody. Users should understand how their wallets work, verify transaction details, and remain responsible for protecting their private keys.
Another key element is liquidity. A healthy liquidity pool can help facilitate swaps, while low liquidity may lead to higher price impact. Understanding these factors is essential before interacting with any decentralized exchange.
STON.fi offers an opportunity to explore how token swaps and liquidity pools function within the TON ecosystem. However, users should always research the risks, including smart contract vulnerabilities and impermanent loss when providing liquidity.
The future of DeFi depends not only on innovation but also on transparency, security, and user education.
#STONfi #TON #defi

Decentralized exchanges are an important part of the TON ecosystem because they allow users to exchange digital assets without relying on a traditional centralized intermediary. STON.fi is one platform contributing to this growing DeFi landscape.
One important aspect of decentralized trading is accessibility. Users need a straightforward way to interact with blockchain assets while maintaining control over their wallets. However, convenience should not replace careful research and security awareness.
STON.fi provides a decentralized exchange experience on TON, allowing users to swap supported tokens through blockchain-based transactions. Like other DeFi platforms, its usefulness depends on factors such as liquidity, transaction costs, network activity, and the availability of supported assets.
Liquidity is particularly important because it can influence how efficiently a swap is completed and how much price impact a transaction experiences. Understanding these factors helps users make better-informed decisions rather than focusing only on short-term market movements.
As the TON ecosystem develops, decentralized applications will continue to be evaluated by their usability, reliability, and ability to meet real user needs. Cross-chain interoperability is another area worth watching because it may create additional ways for assets and blockchain communities to connect.
Ultimately, understanding how a DEX works is just as important as knowing how to use one. Users should review transaction details, verify token addresses, and understand the risks associated with smart contracts before interacting with any decentralized finance application.
#STONfi
#TON
#defi

Imagine having USDT on TON but discovering an application on Base that requires an asset on that network.
You have cryptocurrency. You have a destination in mind. But your funds are on a different blockchain.
This is one of the problems cross-chain swaps are designed to address.
Let's break it down. 👇
🔹 1. Why Can't You Simply Send Crypto Between Any Two Chains?
Blockchains maintain separate ledgers.
TON and Base do not automatically share balances, so sending a token through an ordinary transaction on one network will not automatically deliver the corresponding asset on another.
You need a compatible cross-chain route.
🔹 2. What Is a Cross-Chain Swap?
A cross-chain swap coordinates the exchange of assets between different blockchain networks.
For example, you may want to exchange an asset on TON for a supported asset on Base.
Instead of treating both networks as one blockchain, the service coordinates the transaction across the source and destination networks.
The exact mechanism depends on the service and route.
🔹 3. How Is This Different From a Bridge?
A traditional bridge may lock an asset on one network and issue a wrapped representation on another.
STON.fi's Omniston cross-chain execution model uses paired Hashed Timelock Contracts to coordinate supported swaps.
In simple terms, the mechanism is designed to link the source and destination sides of an exchange so settlement can complete under the required conditions or the refund process can take effect.
This is different from assuming that every bridge and cross-chain service uses the same technology.
🔹 4. When Would You Need One?
Cross-chain swaps may be useful when:
✅ Your destination application requires an asset on another network.
✅ You want to access a supported asset outside your current blockchain ecosystem.
✅ You need to move value between supported networks.
However, if both assets are already available on the same chain, an ordinary DEX swap may be simpler.
🔹 5. What Should You Check Before Swapping?
Never rush through a cross-chain transaction.
Before confirming, check:
🔸 Source and destination networks.
🔸 Supported tokens and token representations.
🔸 Expected amount received.
🔸 Transaction fees and conditions.
🔸 Wallet approval requests.
🔸 The official website you are using.
And remember: never share your seed phrase or private keys with anyone.
🔹 6. Want to Explore TON to Base?
STON.fi has published a guide for users interested in cross-chain swaps between TON and Base.
Read it here:
https://ston.fi/cross-chain-swap-from-ton-to-base
If you specifically want to move USDT from TON to Base, there is also a dedicated guide:
https://ston.fi/how-to-send-usdt-from-ton-to-base
Review the current instructions and confirm the available route before initiating a transaction.
Final Takeaway 💡
Cross-chain swaps help connect blockchain ecosystems, but convenience should never replace understanding.
Know which network holds your assets, where you want them to arrive, and what you are approving.
In Web3, the smartest transaction is the one you understand before you sign.
What do you think is the biggest barrier to cross-chain adoption: transaction complexity, fees, or security concerns?
#blockchain #DeFi #TON #Base #STONfi

You open your TON wallet, head to STON.fi, tap "Connect wallet", pick a pair of tokens, and approve a swap. It takes about a minute and feels like using any other app.
Underneath, a lot more is happening. Cryptographic keys, a smart contract on the blockchain, and a messaging protocol between the website and your wallet all take part. Understanding them makes you safer, because you'll know what you are agreeing to at each step.
So here is the central question: what actually happens when a TON wallet connects to a decentralized application and approves a transaction?
A quick note on names: TON's native currency, formerly called Toncoin, is now Gram (GRAM). The blockchain is still called TON. Some documentation and wallets still use the older name for the same asset.
A TON wallet is a smart contract
There are two things people call "a wallet," and it helps to separate them.
The wallet app is the software on your phone or computer. It shows balances, builds transactions, and asks for your approval.
The wallet contract is a smart contract living on the TON blockchain. TON's documentation explains that wallets are often the entry point of transactions, and that the contract receives signed requests and checks them before acting. Different wallet contract versions (V4 and V5, for example) have different code, so some details vary by version.
A loose analogy is a bank's mobile app versus the account system behind it. The app is the interface, and the account system decides what is allowed. Blockchains don't work exactly like banks, though, and not every smart contract on TON is a standard user wallet.
Your address identifies the on-chain account. TON's docs note that the address is derived from the contract's initial code and data, and that it is not the same thing as your public key.
Keys, signatures and authorization
Many seqno-based TON wallet contracts store a public key. TON's docs explain that wallet contracts use the Ed25519 signature scheme.
Your private key is a secret. It is used to create signatures.Your public key can be shared. It is used to check that a signature is genuine.
When you approve something, your wallet app signs a request with the private key. The wallet contract then checks that signature against the stored public key. If it matches, the contract treats the request as authorized.
Two cautions matter here. First, a valid signature proves control of the key, not that the action is wise. A scam transaction signed by you is still a valid signature. Second, your seed phrase is the source of your private key, so no website, support agent or app should ever ask for it.
Replay protection
Imagine you send a friend a payment and they copy your signed request and send it again. Without protection, the wallet might accept it twice. Replay protection prevents that.
TON's docs describe the common approach for seqno-based wallets: each signed request carries a sequence number, seqno. The contract compares it to its stored value, and once a request has been accepted, the old one fails the check. Requests can also carry a valid_until timestamp, so expired ones are rejected.
Another field, the subwallet or wallet ID, ties a signed request to a specific wallet instance. In Wallet V5 the ID also encodes network information, which helps prevent mixing up networks. The exact checks depend on the wallet contract and version, so don't assume every wallet works identically.
Balance vs. contract state
These are easy to mix up.
Balance. TON's docs state that an account's balance is not stored in the contract's persistent data. It is part of the protocol-level account state, updated as value moves and fees are paid. Your wallet holds GRAM, which pays network fees.
Contract state. This is the data a contract keeps in its own storage. For a wallet, that includes things like the public key and seqno, plus other fields depending on the version.
Jettons. Tokens such as USDT are jettons. The docs explain that regular wallets are designed to store only the native currency. Token balances live in separate jetton wallet contracts, one per owner, which are linked to a jetton master contract. Jetton wallets accept only specific internal messages: from the master, another jetton wallet, or the owner's regular wallet.
This is why a wallet can show 200 USDT and still be unable to do anything without GRAM. The USDT sits in a jetton wallet, while the fees are paid in GRAM from your main wallet. It's also why your wallet app is a presentation layer. It gathers data from several contracts and database indexes, and the on-chain contracts are the real source of truth. Use a blockchain explorer when you need to verify.
How TON Connect works
TON Connect is the protocol that lets a dApp (a decentralized application, like a website that talks to a blockchain) communicate with your wallet. TON's docs describe three roles:
The app (the dApp) runs in your browser or inside your wallet's browser.The wallet holds your keys and signs on your behalf.The bridge relays messages between them. Over the HTTP bridge, messages are end-to-end encrypted, so the bridge sees only ciphertext.
The flow looks like this:
You visit the dApp and choose to connect a wallet.The dApp provides a connection request, via a QR code or a link. Before your wallet shows its prompt, it fetches the dApp's manifest, a small file with the app's name and icon.You approve the connection in your wallet.The dApp receives the account details it needs, such as your address and public key. It does not receive your private key.Later, when you want to do something on-chain, the dApp sends a transaction request.Your wallet shows the details, and you approve or reject.If you approve, the wallet signs and broadcasts it.The blockchain processes the result. Signing and broadcasting do not guarantee success, because contracts can still fail or bounce.
The key principle is that connecting is not signing. A connection lets the dApp see your address and send requests. Every transaction still needs your explicit approval.
Behavior can differ between wallets. TON's docs note that wallets advertise different supported features, and TON Connect's security model has limits: it does not protect against a compromised device, phishing sites on look-alike domains, or bugs in smart contracts.
A practical example: connecting to STON.fi and swapping
STON.fi is a decentralized exchange on TON. It is a good case study because it uses everything above. Two phases, kept clearly apart:
Phase A: Connect.
According to STON.fi's guide, you open the app and click Connect wallet. On mobile, a QR code appears for your wallet's scanner. On desktop, you choose your wallet from a list, as a browser extension or desktop app. Your wallet then asks you to confirm the connection.
STON.fi's guide says this lets the app see your wallet address and request transaction signatures, and that no funds move during connection.
Phase B: Sign.
You go to the swap screen, pick the token you're paying with and the token you want, and enter an amount. A confirmation window shows the tokens, the rate, your slippage tolerance, and the fee reservation. When you click Confirm swap, the dApp sends a transaction request through TON Connect, and your wallet shows its own prompt. You review it and approve or reject.
If you approve, the wallet signs and broadcasts the request, and TON's validators process the resulting messages. Sending USDT, for example, means a message to your jetton wallet with some GRAM attached to cover processing. TON's jetton documentation says that leftover GRAM can be returned via an excess message.
Who does what:
Wallet: holds the keys and signs.TON Connect: carries the messages between dApp and wallet.STON.fi: builds the swap request.TON blockchain: executes the swap and decides the outcome.
One more point: a swap isn't guaranteed to be a single message. TON's docs note that transactions with several messages can have parts that succeed or fail independently. After approving, check the result in your wallet or an explorer. STON.fi's guide mentions an explorer link shown after the swap.
Security checklist
Never share your seed phrase or private key with a dApp, support agent or website.Check that you are on the official site you meant to visit. TON Connect can't protect against phishing domains.Read every transaction prompt before approving.Verify the tokens and amounts in the swapReject unexpected requests.Remember that connecting a wallet doesn't make a dApp trustworthy.Keep a small GRAM balance for network fees.Check the transaction result on-chain when it matters.
FAQ
Is a TON wallet an app or a smart contract?
Both. The app is the interface, and the wallet contract on the blockchain checks signed requests.
Does connecting give a dApp permission to spend my tokens?
No. Connecting shares account details and allows requests. Each transaction still needs your approval.
What's the difference between a public and a private key?
The private key creates signatures and must stay secret. The public key verifies them and can be shared.
Why does my wallet need GRAM when I hold USDT?
Network fees are paid in GRAM, and USDT lives in a separate jetton wallet contract.
What is replay protection?
A safeguard so a signed request can't be reused. Many wallets use a sequence number and an expiry time, though details vary by version.
What does TON Connect do during a STON.fi swap?
It carries the connection and the signing request between the website and your wallet. It doesn't hold your funds or authorize spending itself.
Does approving guarantee success?
No. A swap can still fail, for example because of slippage or low GRAM for fees, so check the outcome.
The takeaway
A TON wallet combines three things: an interface, cryptographic authorization, and contract behavior on the blockchain. The safe sequence is connect, review, explicitly authorize, verify. A swap on STON.fi is a practical place to see all of it work together, and now you know what each step is actually doing.
Sources
TON docs: How TON wallets work, Wallet V5TON docs: Jetton: how it worksTON docs: TON Connect core concepts, Send a transaction with TON ConnectSTON.fi guides: Connect your TON wallet, Swap tokens
#TON #USDT #STONFI #TONwallet #TONconnection

Self-custody is one of the most important concepts in decentralized finance. It allows users to manage their digital assets through a personal cryptocurrency wallet instead of relying entirely on a centralized intermediary.
Within the TON ecosystem, wallets help users interact with decentralized applications, transfer tokens, and explore protocols such as STON.fi. However, controlling your own assets also means taking responsibility for their security.
The first step is protecting your recovery phrase. Anyone who obtains this phrase may gain access to your wallet, so it should never be shared with another person or entered into an untrusted website. Keeping a secure offline backup can help reduce the risk of losing access.
Another important habit is checking every transaction before signing. Users should confirm the recipient, token, amount, network, and applicable fees. They should also review wallet permissions carefully and avoid interacting with suspicious links sent through private messages or social media.
When using a decentralized exchange such as STON.fi, understanding the transaction process is just as important as understanding the market. Token prices can change quickly, and network congestion or liquidity conditions may affect the final result. Decentralized applications can also carry smart-contract risks.
Self-custody provides greater control, but it does not guarantee safety or prevent financial losses. Good security practices, careful research, and a clear understanding of transaction risks remain essential.
As decentralized applications continue to develop, users who understand wallet security will be better prepared to navigate the TON ecosystem responsibly.
#STONfi #TON #DeFi

Imagine a wallet holding 200 USDT. The owner opens a swap screen, picks the amount, and taps confirm. Instead of a quote, they get a warning that the wallet doesn't have enough of something else.
It feels wrong. The balance is there, so why won't the transaction go through? The answer is that two different things are involved in every swap: the asset you want to move, and the asset the network accepts as payment for processing the move. This article explains how those two fit together on TON, and how STON.fi handles the second one.
A quick note on names
Until mid-2026, TON's native currency was called Toncoin, with the ticker TON. After a community vote, it was renamed Gram (GRAM). TON's documentation describes this as the official native currency today. The blockchain itself is still called TON, and the asset is the same one, with the same balances and addresses. Older guides, wallets and some pages still say "Toncoin" or "TON" for what is now GRAM. Nothing needs to be migrated or exchanged. Anyone offering to "convert your Toncoin to GRAM" is not describing a real step.
What gas actually is
When you use a blockchain, the network's validators do real work: running smart-contract code, passing messages between contracts, and storing the results. That work has a cost, and gas is the unit used to measure the computing part of it.
A courier analogy helps. If you send a package worth $200, the courier still charges a delivery fee. The fee isn't deducted from the package's value, and it doesn't depend on how valuable the contents are. It pays for the handling. Gas works the same way: the value being moved and the cost of moving it are separate things.
This isn't identical on every chain. Some networks use one fee market for everything, while others split costs differently. So the specifics below are about TON.
How TON charges for transactions
TON's documentation breaks a transaction's cost into several parts that line up with the stages of processing:
Compute fees pay for code execution, measured in gas units.
Forward and action fees pay for sending messages onward.
Storage fees pay for keeping contract data on-chain.
Import fees apply to inbound external messages.
The total is the sum of these. The documentation also explains that validators set the prices through network configuration, and users can't override them. All of these costs are denominated in the native currency, which is now GRAM.
For an internal message, the GRAM attached to the message sets how much gas the receiving contract can use. So the native currency is what actually pays for the work.
Why USDT can't pay its own way
On TON, USDT is a jetton, which is TON's standard for fungible tokens (similar in purpose to ERC-20 tokens elsewhere). Jettons aren't stored in a single ledger. The jetton contract tracks supply and metadata, and each holder has their own small jetton-wallet contract that tracks their balance and handles transfers.
Moving a jetton therefore means sending messages between contracts, and each contract that runs needs gas. The jetton itself has no way to pay that bill, since the network prices computation in GRAM. That's why a wallet full of USDT can still be stuck.
Here's a hypothetical. Alice holds enough USDT for a swap, but her wallet's GRAM balance is too low to cover the transaction costs. Depending on the app, the swap may be blocked before she signs, or it may fail after submission. Either way, the fix is to add a small amount of GRAM, not more USDT. Requirements differ between operations and routes, so don't assume every swap needs the same buffer.
Reserved gas vs. spent gas
Now to a practical example. A swap on a decentralized exchange isn't a single step. Your wallet's message passes through a jetton wallet, a router and a liquidity pool, and the result is sent back to you. Nobody can know the exact cost in advance, because it depends on the route and pool.
STON.fi's Help Center explains its approach. The interface reserves slightly more GRAM than the final fee is expected to be, so the transaction doesn't fail midway for lack of gas. After execution, the unused portion is sent back automatically. Their own analogy is a card hold at a gas station: a larger hold first, then a final charge for what you actually used. The Help Center also says reserved GRAM is returned if a transaction fails.
The main lesson is that the reserve is a ceiling, not a bill. If you see a larger amount requested than you expected, that doesn't mean that's what the swap will cost.
Three other points keep this clear:
A reserve isn't the only cost. A swap can also carry a pool trading fee, which is set per pool and is separate from network gas. Slippage and price impact are different again. They describe how the price moves, not what the network charges.
Complex routes change the picture. More messages and more contracts can mean a different required buffer.
Numbers drift. STON.fi's Help Center currently lists a reservation cap and a typical spent range for swaps, but these have changed over time. For current values, check the Help Center and the confirmation screen rather than any article, including this one.
A practical example: sending USDT from TON to Base
STON.fi's guide to sending USDT from TON to Base walks through a cross-chain route. According to the guide, you connect a TON wallet and a Base-compatible wallet, choose the token and destination network, enter the amount, review the swap details and fees, confirm in your wallet, and wait for execution. It notes that fees may include TON network fees plus cross-chain execution fees, and that the confirmation screen shows the amount you'd receive on Base including fees.
Cross-chain adds preparation that a simple swap doesn't. You're working with two networks and two wallets, and the guide itself warns that cross-chain transactions can't be reversed. It also suggests a small test transaction before sending a large amount.
With the concepts above, the guide becomes easier to read:
Your USDT is the asset being moved.
The network fee line is where the cost of processing on TON shows up.
The final quote is what you should trust, not a rough guess made beforehand.
One caution: the guide doesn't spell out how reserves or refunds work for cross-chain routes specifically. Don't assume the swap behavior described above carries over. Check what the interface shows for your route.
Pre-swap checklist
Confirm your wallet is connected to the right network.Check that your USDT (or other jetton) balance covers the amount you intend to swap.Check which asset the interface needs for network costs. On TON, expect that to be GRAM.Read the displayed reserve and fee details, and don't treat the reserve as the final fee.Look up the current fee information in STON.fi's Help Center if anything is unclearConfirm the destination network, asset and address before signing.Never share your seed phrase or private key with anyone offering help.
FAQ
Why can I have USDT but still be unable to swap?
Because the network's processing costs are paid in its native currency (GRAM), not in the token you're swapping. If your GRAM balance is too low, the operation can be blocked or fail.
Is the gas reserve the same as the final transaction fee?
No. STON.fi describes the reserve as a cap set above the expected cost. The actual network fee is what's consumed, and STON.fi's Help Center says the unused portion is returned for swaps.
Can transaction costs change?
Yes. TON's fee levels are set through network configuration, and STON.fi's reserve and route behavior can also change. Treat any specific figure as a snapshot.
Why might a cross-chain operation require more preparation than a simple transfer?
It involves two networks, usually two wallets, extra execution steps, and a transaction that can't be reversed once confirmed. A single mistake in the address or network can be costly.
Where should I check current fee and reserve requirements?
In the live STON.fi swap interface, on its confirmation screen, and in STON.fi's Help Center. TON's own documentation covers how fees are structured.
The takeaway
The thing you want to swap and the thing that pays for the swap are separate. Keep a small GRAM buffer next to your USDT, read the reserve as a ceiling rather than a price, and check the confirmation screen before you sign. That habit prevents most of the avoidable failures on TON.
Sources
TON docs, whitepapers overview, transaction fees, gas, jetton standard
STON.fi, Help Center: Blockchain and DEX fees
STON.fi, How to send USDT from TON to Base
#EarningsSeason #Stonfi #DEX #TON