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This API is experimental and may change in a future release.
Accepts:
  • a single from/to leg or arrays of legs
  • TokenSymbol (“USDC”, “USDT”, …) which is resolved to the per-chain ERC-20 address via the shared token registry
  • Date or unix-seconds bigint for validUntil/validAfter
Plug the returned object into SessionDefinition.crossChainPermits to permission a session key for Permit2-backed cross-chain transfers.

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Import

import { createCrossChainPermission } from '@rhinestone/sdk/actions/smart-sessions'

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Usage

import { arbitrum, mainnet } from 'viem/chains'

const permit = createCrossChainPermission({
  from: { chain: mainnet, token: 'USDC', maxAmount: 1_000_000_000n },
  to:   { chain: arbitrum, token: 'USDC' },
  validUntil: new Date(Date.now() + 7 * 24 * 60 * 60 * 1000),
})

const session = toSession({
  chain: mainnet,
  owners: { type: 'ecdsa', accounts: [sessionKey] },
  crossChainPermits: [permit],
})

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Parameters

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input
CreateCrossChainPermissionInput
required

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Returns

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crossChainPermission
CrossChainPermit