Olien Multisig

The multisig platform to secure and manage USDC

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Built with the first teams on Arc,
ahead of mainnet on 16 September

  • Arc
  • USDC
  • Circle
  • Safe
  • Pimlico

Treasury Management

Streamline operations with approval workflows, conversion between USDC and EURC, and payments that clear in seconds.

  • Propose, approve, execute. Any member drafts a payment, the others read it in plain terms and approve, anyone executes.
  • Gas is the money. The treasury pays its own fees in USDC. There is no second token to keep topped up.
  • Cheques and invoices. Write a cheque a contractor cashes when they like, or approve an invoice they sent. Both are USDC's own signed authorizations.
  • A ledger the accountant can use. Every movement labelled, tied to the proposal that caused it, exported when asked.

Rules the chain enforces

Two kinds, labelled honestly. On-chain rules the account itself enforces, and policies the service applies on top. You always know which is which.

Approval thresholds

Set how many members must approve, applied to every transaction. Raise it above an amount with a policy.

Time lock and veto

Changing members or rules waits 24 hours, and members holding a veto can stop it during the wait. Taking a power away never waits.

Spending limits

Let one member pay small, known destinations alone, within a daily amount. Remove a limit at once, without a wait.

Members that are people, not keys

Add a passkey on a laptop, a hardware wallet, or an account from an app that carries a member directory. A member who loses a phone recovers their own account without the treasury changing at all.

  • @adeNamed through a member directory, approves on a phone
  • Kemi's MacBookPasskey, verified by the chain's own P-256 precompile
  • Ledger 0x6bskHardware wallet, the hash shown for comparison
  • Add a memberTakes effect after the 24 hour wait

Built on the Olien account

Olien Multisig runs on the Olien account, an open-source smart account for Arc. Its rules are enforced by the contract and the chain, not by a company server, a black box, or a trusted third party.

The account needs no service to work. A team can leave with their keys and execute against the contract directly with any client.

Read the specification

Pricing Plan

Accessible pricing based on software economics, not rent on assets under management.

Basic

A multisig account for teams of any size, free on testnet and on mainnet

$0/ month
Get started
  • A smart account with unlimited members
  • Proposals, approvals and execution
  • Time lock and veto on changes
  • Spending limits
  • Cheques and invoices
  • USDC and EURC, converted through Arc FX
  • A labelled ledger
  • Members by @handle, passkey or hardware wallet

Pro

Run a company's money on Arc, paid from the treasury itself

$49/ month
Try free for 30 days

Everything in Basic, plus:

  • Approval tiers by amount
  • Payroll runs on a schedule
  • Sub-accounts
  • Known destinations only
  • Push and email alerts for every member
  • CSV export for the accountant
  • API keys

Enterprise

Custom implementations, dedicated support and onboarding

Custom
Contact us

Everything in Pro, plus:

  • Unlimited accounts
  • Assisted onboarding
  • Custom policies
  • Priority support
  • Reporting and compliance integrations

The subscription is a spending limit the treasury grants to Olien, visible like any other rule and revocable at once. No fee on assets, ever.

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