3Jane USD3 (USD3)

Overview

3Jane USD3 (USD3) is a yield-bearing token issued by the 3Jane credit protocol on Ethereum. A person deposits USDC into the protocol and receives USD3, which represents a share of a pool that funds credit. The pool serves two kinds of borrowers: fintech lenders that finance loans to businesses and consumers, and crypto users who qualify for credit lines. Income from those activities can increase the USDC value represented by each USD3 share. (3jane.xyz)

USD3 is called the senior part of 3Jane’s funding structure. That means it receives payments ahead of the junior part, known as staked USD3 or sUSD3. The distinction helps explain the token: owning USD3 gives a holder exposure to the results of a credit pool, with a defined place in the order of payments and losses. (3jane.xyz)

History & Team

From crypto credit to fintech lending

3Jane introduced its plan for a credit-based money market in 2025. Its early work centered on USDC credit lines for crypto users. Instead of requiring a borrower to lock up more crypto than they borrowed, the proposed system used information about assets, income, cash flow, and credit history to set borrowing terms. In June 2025, 3Jane announced a $5.2 million seed round led by Paradigm. Its website also identifies Wintermute Ventures and Coinbase Ventures as backers. (3jane.xyz)

The project later widened its focus. In May 2026, 3Jane described Fintech Credit Conduits, which let its capital pool finance loans originated by other lenders. It subsequently announced a warehouse facility with U.S. installment lender LendSwift and a purchase of small-business credit receivables from Slope. These arrangements made USD3 relevant to both onchain borrowing and loans tied to activity outside crypto. 3Jane publishes its research, contract code, and audit reports through its website and developer repositories. (3jane.xyz)

Technology & How It Works

Deposits, credit, and repayments

The basic path starts with USDC. A supplier deposits it into 3Jane and receives USD3. The token follows ERC-4626, an Ethereum standard for vault shares. A vault share records a claim on assets held by a strategy. As the strategy earns income, one share may come to represent more underlying USDC. When a holder withdraws, the amount available depends on the vault’s accounting and available funds. (3jane.xyz)

3Jane can put the supplied funds to work in more than one way. Its direct-credit system assesses a crypto borrower using financial information from onchain activity and connected accounts. The protocol’s published design uses credit-scoring tools and verifiable data proofs to help set a credit limit, borrowing cost, and repayment terms. In this model, a borrower’s assessed ability to repay takes the place of a large deposit of onchain collateral. (3jane.xyz)

For fintech lending, 3Jane finances pools of loans through structures such as warehouse facilities and forward-flow purchases. A warehouse facility advances funds against a lender’s portfolio of eligible loans. A forward-flow arrangement buys loans that meet agreed rules as they are originated. The lender continues to handle tasks such as collecting payments, while information about the loans and their performance feeds back into 3Jane’s monitoring. (3jane.xyz)

Money collected from borrowers moves back through the funding structure. After the costs of originating, servicing, and managing the credit are accounted for, the remaining income is shared according to the rules for USD3 and sUSD3. Smart contracts handle the onchain vault shares, while the fintech facilities also depend on loan agreements, payment collection, and records of the underlying loans. (3jane.xyz)

Tokenomics & Utility

The senior and junior shares

USD3 is created when eligible USDC enters its vault; it is redeemed as USDC leaves under the vault’s rules. Its supply therefore follows deposits and withdrawals rather than a fixed number of tokens set aside at launch. The token’s main utility is to represent the senior share of 3Jane’s credit-backed pool. Holders can keep that share, redeem through the protocol when funds are available, or use it in supported DeFi applications. (3jane.xyz)

A USD3 holder may also stake into sUSD3, the junior share. The junior portion receives more of the income remaining after senior obligations are met. In return, it absorbs credit impairment before losses reach the senior portion, subject to the other protections built into each facility. This order is often called a waterfall: incoming money flows to claims in a set sequence, and losses are assigned in a set sequence too. sUSD3 has a withdrawal cooldown, while USD3 withdrawals depend on available reserves. (3jane.xyz)

3Jane also runs incentives using JANE, a separate token. Its liquidity-mining program has awarded JANE for activities that include holding USD3 and sUSD3 and providing liquidity in related markets. JANE’s incentive role is separate from USD3’s role as a vault share backed by the credit strategy. (3jane.xyz)

Ecosystem & Use Cases

USD3 connects people supplying USDC with lenders seeking funding. For a supplier, it offers a single token representing participation in a pool of credit activities. For a fintech lender, 3Jane’s facilities can provide capital to finance eligible loans without the lender having to find a separate funder for every new group of borrowers. The protocol’s direct-credit side serves crypto users whose borrowing terms are based on assessed financial information. (docs.3jane.xyz)

The token also works within Ethereum’s broader DeFi ecosystem. 3Jane has described USD3-related liquidity positions and Pendle positions in its incentive program. Curve has featured pools pairing USD3 with other dollar-denominated assets. These integrations let applications use the vault share in swaps or other financial arrangements while its underlying economic exposure remains tied to 3Jane’s credit pool. (3jane.xyz)

The range of loans matters as much as the onchain integrations. A pool can include short-term small-business or consumer receivables alongside direct crypto credit. Each activity has its own route for approving borrowers and collecting payments, but both ultimately connect back to the USD3 and sUSD3 funding structure. (docs.3jane.xyz)

Advantages & Challenges

What the design makes possible

3Jane brings credit activities that often involve private agreements into a structure with transferable Ethereum vault shares. Its senior and junior tokens give suppliers two different places in the payment order. For fintech lenders, standing funding arrangements can make it easier to finance a continuing stream of eligible loans. For crypto borrowers, the direct-credit model can use a wider financial profile than wallet collateral alone. (docs.3jane.xyz)

The design also has practical limits. A loan may take time to repay, while a USD3 holder may want to withdraw sooner; withdrawals therefore depend on funds available to the vault. Assessing borrowers requires information and judgment beyond what a smart contract can see by itself. Fintech facilities add another layer of work: 3Jane must track loan eligibility, lender reporting, servicing, and collections. The junior share and facility-level protections set an order for absorbing losses, but that order remains important when studying how the senior share works. (3jane.xyz)

Where to Buy & Wallets

USD3 is available by depositing USDC through the 3Jane application and minting the token. It can also be swapped in supported Ethereum liquidity pools, including USD3 pairs on Curve. These are two different routes: minting creates a vault share from a deposit, while swapping transfers an existing share from another holder. (3jane.xyz)

USD3 is an Ethereum token, so it can be held in a wallet that supports Ethereum ERC-20 assets and connections to decentralized applications. A wallet is used to approve the USDC deposit and receive USD3. Ethereum transactions also require ETH to pay network fees. 3Jane’s published USD3 contract address is 0x056b269eb1f75477a8666ae8c7fe01b64dd55ecc, which identifies the token when adding it to a wallet or selecting it in an application. (3jane.xyz)

Regulatory & Compliance

3Jane’s published website terms name Tulkum Assets Corp., a Panamanian corporation, as the operator of the website and describe terms for suppliers and borrowers. The credit activities also involve U.S. lenders and borrowers, so the legal picture spans more than the country named in the website terms. In the United States, regulators assess a tokenized financial product by its structure and the rights it gives holders; putting a claim on Ethereum does not, by itself, decide its legal classification. The European Union’s MiCA framework also contains rules for crypto-assets, including limits on paying interest for certain regulated token categories. (3jane.xyz)

Islamic finance generally prohibits riba, or interest-based lending. USD3 earns from priced credit facilities and loan receivables, so its income model does not align with interpretations of Shariah that exclude interest-based credit. That assessment concerns how returns are generated, rather than the token’s name or the blockchain used to hold it. (3jane.xyz)

Future Outlook

3Jane’s stated direction is to use the same USD3 and sUSD3 funding stack for both direct crypto credit and fintech facilities. That could give the pool more kinds of borrowers and loans while keeping one set of onchain supplier shares. The project has also described Levered Callable Capital, a system in which participants commit to supply USDC when a financing opportunity is ready, rather than depositing all of it in advance. When called, that capital would enter the USD3 funding path. (docs.3jane.xyz)

The lasting role of USD3 will depend on how effectively 3Jane connects onchain funding with loan origination, repayment, and clear accounting across those activities. Its development shows a broader DeFi approach: using blockchain tokens to represent shares in credit that reaches beyond loans secured only by crypto assets. (docs.3jane.xyz)

Summary

3Jane USD3 is an Ethereum vault share backed by a credit strategy funded with USDC. It sits ahead of sUSD3 in the protocol’s payment structure and links suppliers to fintech lending and direct crypto credit. Its defining idea is to make a share of those credit activities usable as an onchain token while the underlying loans are managed and repaid over time. (docs.3jane.xyz)