Guides

LOBSTR Stellar Address: G-Address, Minimum Balance, Memo

October 21, 2026
5 min read

Find your Stellar XLM address in LOBSTR, why it needs 1 XLM to exist, how trustlines raise the minimum balance, and when memos and federation addresses matter.

Stack of the Stellar minimum balance: 1 XLM for the account, 0.5 XLM for each trustline, offer, signer or data entry, and the spendable remainder.
In LOBSTR the reserved XLM grows by 0.5 XLM with every trustline and offer. Open the full-size diagram

Your Stellar address in LOBSTR is the public key that starts with G and is 56 characters long โ€” it is on the Receive screen next to a QR code. LOBSTR may also give you a short federation address like name*lobstr.co that resolves to the same G-address. A new Stellar account becomes active only after it receives at least 1 XLM, the minimum balance of an account with no extra entries.

What the minimum balance is made of

Stellar counts reserves in units of the base reserve, 0.5 XLM. Every account needs two base reserves (1 XLM). Every subentry โ€” a trustline to an asset such as USDC, an open offer on the decentralised exchange, an extra signer or a data entry โ€” adds one more base reserve. LOBSTR shows the locked part as reserved XLM; the Stellar minimum balance calculator computes it for any number of subentries.

Minimum balance examples
AccountSubentriesMinimum balance
New account, XLM only01.0 XLM
With a USDC trustline11.5 XLM
USDC + AQUA trustlines22.0 XLM
Two trustlines and one open offer32.5 XLM
Multisig: two trustlines + one extra signer32.5 XLM

Getting the address and activating it

  1. Install LOBSTR from the official store or lobstr.co and create a wallet. Write down the recovery phrase offline; LOBSTR also lets you view the secret key starting with S โ€” never share it.
  2. Open Receive and copy the G-address (or the federation address if you set one).
  3. Fund it with at least 1 XLM, preferably 2โ€“3 XLM so you can add a trustline or two. Many exchanges handle the account creation automatically when you withdraw XLM to a new address.
  4. Once the payment lands โ€” Stellar closes a ledger roughly every 5 seconds โ€” the account is active and the balance appears.

If you try to send less than 1 XLM to an account that does not exist yet, the network rejects it; the error is usually shown as "destination account does not exist" or op_no_destination. That is a safety feature: the XLM stays with the sender.

Memos: who needs them

Stellar memos come in several types โ€” text (up to 28 bytes), ID (a number), hash and return. Exchanges use one G-address for all customers and identify deposits by the memo, usually an ID or text memo. When you send from LOBSTR to an exchange, choose the memo type the exchange specifies and paste the value; a missing memo means a manual recovery request. When you receive into LOBSTR, you need no memo at all.

On KOT.CASH, XLM deposits go to an address with a memo; the order page shows both, and the liquidity provider's network list marks XLM as a memo network. Copy the memo into LOBSTR's memo field exactly. For XLM payouts to your LOBSTR wallet, paste the G-address only.

Trustlines and tokens

To hold any Stellar asset other than XLM โ€” USDC on Stellar, for instance โ€” your account must first add a trustline to that asset's issuer. In LOBSTR that happens when you search for the asset and add it; each trustline locks another 0.5 XLM. Choose the asset by issuer, not by code: anyone can issue a token called "USDC". LOBSTR marks verified assets, and the issuer domain is shown on the asset page.

Fees and speed

The base fee on Stellar is 100 stroops per operation, which is 0.00001 XLM, and stays that low unless the network is congested. Ledgers close about every 5 seconds and are final immediately, so services often credit XLM after a single ledger; the provider's list shows 1 confirmation for XLM. The deposit confirmations lookup lists the numbers for other networks.

Keeping the account safe

LOBSTR is a non-custodial wallet: the secret key and the recovery phrase are the account. Anyone with the S-key can move every XLM and token, and no support team can reverse a Stellar payment. Store the phrase offline, enable the app lock, and treat messages about "account verification", "unclaimed XLM airdrops" or "locked balances" as phishing โ€” Stellar has seen many campaigns that send tiny payments with a website in the memo text. Never sign transactions on a site you reached from such a memo.

Selling XLM from LOBSTR

For a swap, the minimum depends on current network costs: on 21 October 2026 the provider's minimum for XLM to USDT TRC20 was about 168 XLM. Keep the reserve in mind โ€” LOBSTR will not let you send the locked 1 XLM plus 0.5 XLM per trustline, so compute the amount you can actually send before creating an order.

FAQ

How much XLM do I need to activate a LOBSTR wallet?

At least 1 XLM. Each trustline or offer adds 0.5 XLM, so 2โ€“3 XLM is a comfortable start.

Do I need a memo to receive XLM in LOBSTR?

No. Memos are needed when you send to an exchange that uses one shared address for all customers.

What is name*lobstr.co?

A federation address: a readable alias that LOBSTR resolves to your G-address. Not every wallet supports it, so share the G-address when in doubt.

Why can I not send all my XLM?

The minimum balance โ€” 1 XLM plus 0.5 XLM per subentry โ€” stays locked while the account exists.

My exchange deposit from LOBSTR has no memo. What now?

Contact the exchange with the transaction hash; the deposit is at its address and needs manual crediting.

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LOBSTR Stellar Address: G-Address, Minimum Balance, Memo | KOT.CASH