3Jane

• Name: 3Jane
• URL: https://www.3jane.xyz/
• Category: protocol-underwritten unsecured credit market
• Tags: ethereum-ecosystem
• Summary: 3Jane is pooled unsecured credit with a house underwriter in the middle. Supplier capital sits in one pool, junior capital eats first loss, and borrower selection plus collections stay operator-shaped. Useful as a credit-control note, not as a neutral money market.
• What it does:
  • Lets suppliers deposit USDC into the main pool and optionally take junior first-loss exposure through sUSD3
  • Extends open-term variable-rate USDC credit lines to merchants without the usual full-collateral liquidation model
  • Routes idle liquidity into Aave until merchants draw, so pool backing flips between ordinary yield and live unsecured exposure
  • Uses a protocol-run underwriting stack that combines wallet activity, bureau data, bank connectivity, and other verified financial proofs
  • Uses markdown rules, delinquency windows, score slashing, and non-performing-loan auctions for collections rather than treating liquidation as the whole recovery path
• Key claims:
  • The distinctive thing here is not merely unsecured credit onchain. It is pooled funding plus centralized underwriting and collections.
  • The docs make the capital stack plain: USD3 holders get the main pool exposure while sUSD3 absorbs losses first in exchange for higher upside.
  • Practical authority sits with the 3Jane-operated underwriting algorithm, the data providers feeding Jane Score and external score inputs, and owner-controlled market parameters.
  • This makes 3Jane a different branch from Wildcat’s borrower-authored markets and from Goldfinch’s borrower-and-consensus underwriting stack.
  • Keep the note on credit selection, loss allocation, and recovery workflow. That is the live control surface.
• Whitepaper: 3Jane publishes an official whitepaper PDF plus protocol docs. The strongest packet for this pass is ../whitepapers/3jane-primary-sources-2026-05-09.md, and the canonical whitepaper PDF is saved as ../whitepapers/3jane-whitepaper.pdf.
• Sources:
  • https://www.3jane.xyz/
  • https://docs.3jane.xyz/
  • https://docs.3jane.xyz/introduction
  • https://docs.3jane.xyz/architecture/core-money-market/pool-backing
  • https://docs.3jane.xyz/architecture/credit-underwriter/jane-score
  • https://docs.3jane.xyz/protocol-global-config
  • https://docs.3jane.xyz/risks
  • https://docs.3jane.xyz/resources/links
  • https://www.3jane.xyz/pdf/whitepaper.pdf

Internal linkages

• Best upward reads: wildcat, goldfinch, and compound.
• Wildcat is the borrower-authored-market contrast; Goldfinch is the tranche-and-consensus underwriting contrast; Compound is the clean pooled-money-market baseline.

Control surface

• The leverage sits in underwriting policy, external data feeds, markdown and tranche rules, and the recovery pipeline once borrowers go bad.

• That is why the note matters. 3Jane is mostly a credit operator wrapped around a pooled onchain balance sheet.

• Last reviewed: 2026-06-16 UTC