Plain-English primer on both FlashBank products, the loan lifecycle, fees and safety rules. Call this first if you are unsure how anything works.

Supported chains with contract addresses, registry tokens and whether writes are currently permitted for each.

Address, native balance and registry-token balances of the configured signing wallet on one chain. Reports read-only mode when no key is set.

Open, takeable loan offers/requests on a chain, newest first with boosted (featured) offers ranked on top. Returns human-readable terms plus the raw ids for follow-up calls.

Full detail for one loan id: terms, parties, status, what a taker must provide, repayment quote, default deadline/split and the on-chain terms hash.

Every loan created by or assigned to an address (defaults to the configured wallet), with current status.

Per-token flash-loan liquidity on a chain: committed amount, live available liquidity, fee, per-loan cap and provider count.

Fee quote for flash-borrowing a given amount of a token (symbol or address) on a chain.

Post a loan offer (you lend) or borrow request (you borrow) on-chain. Escrows your side immediately: lenders escrow the principal, borrowers escrow the collateral. Reversible via p2p_cancel while untaken. Requires a signing key; mainnet additionally requires FLASHBANK_MCP_ALLOW_MAINNET=true.

Accept an open offer, pinning the EXACT terms currently on-chain (takeWithTerms) so a last-second re-price reverts instead of surprising you. Approves and escrows your side, which activates the loan — a BINDING commitment until repaid or defaulted. Requires a signing key (mainnet gated).

Repay an active loan you borrowed, redeeming your collateral. On v2 chains (Sepolia) the fee is the VESTED amount — repaying inside the cooling-off window is rebated down to a 10% floor. Requires the signing wallet to be the borrower (mainnet gated).

After the repay window closes unpaid, the lender claims the collateral (any agreed surplus returns to the borrower). Irreversibly settles the loan. Requires the signing wallet to be the lender (mainnet gated).

Cancel an offer you created that has not been taken, reclaiming your escrow (any boost spend is not refunded). Mainnet gated.

v2 chains (Sepolia) only: if a settlement payout to you could not be delivered (e.g. a blocklisting token), it queues on-chain — this checks your queued balance for a token and withdraws it.

Mint a free batch of 10,000 fpUSD or fpETH (valueless playground tokens) to the signing wallet on Sepolia. The safe way for agents to get funds to experiment with.