NEAR Intents: funding the shielded lane

The shielded lane needs ZEC in the vault. NEAR Intents’ 1Click API swaps USDC to ZEC and delivers it directly to a Zcash unified address, so the vault receives shielded funds without Corridor holding ZEC anywhere else.

API


Base URL	`https://1click.chaindefuser.com/v0`
Origin asset (Base USDC)	`nep141:base-0x833589fcd6edb6e08f4c7c32d4f71b54bda02913.omft.near`
Destination asset	`nep141:zec.omft.near`

const q = await quoteSwap({
  originAsset: NEAR_ASSETS.baseUSDC,
  destinationAsset: NEAR_ASSETS.ZEC,
  amount: 15_000_000n,            // $15
  recipient: vaultUnifiedAddress, // ZEC delivered here
  refundTo: baseRelay,            // USDC refunded here if the swap cannot complete
  dry: true,                      // price only, no deposit address reserved
});
usdPerZec(q);  // implied price

A live (non-dry) quote returns a depositAddress; the saga sends USDC there and polls swapStatus(depositAddress) until delivery.

Why Base

NEAR Intents has no Tempo market, so on mainnet the shielded route takes one Across hop from the hub to Base, then swaps Base USDC → ZEC:

ledger.reserve → across.bridge (Tempo → Base) → near.swap (Base USDC → ZEC) → zcash.shieldedBatch

On testnet

The testnet near.swap leg is fully real except for the swap itself:

Rate: a live mainnet 1Click quote (dry).
Tempo leg: pathUSD leaves the treasury toward the swap venue with the batch reference as memo (0xbafdbde3…).
Delivery: real testnet ZEC, sized from the live quote, sent to the FROST vault’s unified address with a memo (1f05d641…).

Bookings convert the customer’s pathUSD hold into a ZEC liability through a usd-zec clearing pair, and the delivery is booked under the vault output that observers (and an auditor’s viewing key) will see. Each step is recorded in leg_artifacts, so a retry never sends twice.

Quote	Value
$50 USDC → ZEC (30 Sep 2026)	0.0348 ZEC, ~150 s estimate
$15 USDC → ZEC (saga run)	0.01022830 ZEC (~$1,466.52 per ZEC)

The mainnet near.swap leg from Base USDC is next on the roadmap; the quote and status client is already in @corridor/swap-near.

Overview

Settlement hub

Bridging

Liquidity spokes

Shielded lane

NEAR Intents: funding the shielded lane

API

Why Base

On testnet

​API

​Why Base

​On testnet

API

Why Base

On testnet