Supply the market-making vault

Earn lets you supply test collateral to the market-making vault. The vault puts capital behind market quotes and inventory. You receive shares representing your portion of its value.

The value can rise or fall with trading results. It is not a fixed interest account, and money currently deployed in open Windows may not be immediately withdrawable.

Supply or withdraw from EarnMasayume

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Supply or withdraw from Earn

Masayume

Live vault data is readable while signed out. This capture shows a share value below 1 and asks you to connect before supply or personal-position controls appear.

Capture state: Public masayume.app · signed out · live vault data is visible; supply and personal position require connection.

Captured 5 September 2026.

1. 1Read the share-value notice; this capture explicitly shows the vault carrying a loss.
2. 2Connect the owner wallet to reveal supply and withdrawal controls.
3. 3Inspect inventory and closed Windows waiting for settlement.

Open original capture

Supply test funds

1. Open Earn and connect your wallet.
2. Under Supply the vault, enter Amount. Use Max or a quick amount only if that is the amount you intend to supply.
3. Choose Supply tUSDC.
4. Confirm the token approval if needed, then the supply transaction.
5. Check Your position for shares and their current value.

If the wallet balance is still being read, wait. The form does not treat an unread balance as spendable funds. New supply is blocked while the reserve is paused.

Understand Where the capital is

The inventory view separates resting quotes, paired outcome sets and one-sided exposure. Capital committed to a live Window may need its market result before returning to the idle pool.

Merge combines eligible paired sets. Settle advances eligible closed inventory. These are maintenance actions on fixed contract accounting, not a way to choose a winning side after the result.

Withdraw your position

1. Find Your position.
2. If the full value is idle, choose Withdraw all.
3. If part is still deployed, the button instead offers Withdraw … idle and names the remainder that is out.
4. Confirm the transactions and check the wallet result.

The withdrawal flow can settle eligible closed inventory before redeeming shares, so more than one transaction may be involved. It cannot pull capital out of still-active positions just because you requested a withdrawal.

If no idle shares are withdrawable, wait for the relevant Windows to settle and check again. A pause on new supply does not by itself stop settlement or withdrawal of available funds.

Market Surface explains the books the vault helps supply. Balances shows how Earn shares differ from ordinary Trading Balance.