One inbox for every Safe.

Ask Claude or Codex to prepare Safe transactions. Review, sign, and execute them across every Safe from one inbox.

No card needed.

Illustrated workflow: an agent prepares three drafts across three chains. You review their decoded calls and simulations, sign with your wallet, and publish them to Inbox. Each proposal has your first signature and waits for co-signers. Choose a scene below to pause and inspect it.

Your Safes, as they are. Nothing to migrate.

Chains
11
Safes per workspace
10
Members per workspace
Unlimited

From request to signature.

Your agent does the drafting. Your team keeps every decision.

Agents draft

Claude, Codex, or any MCP client prepares transactions. Agents can read and draft. They can't sign.

You review

Calls decoded where the contract is known, and a simulation you can run before anyone signs.

Anyone can sign

Share one link. Co-signers sign with their own wallet, without a seat in your workspace or a multisig.sh account.

Every chain you use

One inbox for Safes on Ethereum, Base, Arbitrum, and more.

For agents

Connect your agent.

Add multisig.sh to your agent, then approve the connection in your browser.

$ claude mcp add --transport http multisig https://www.multisig.sh/mcp$ claude mcp login multisig

Also works with Codex, Cursor, Claude Desktop, and any MCP client.

Pricing

One plan. Every feature.

Founding priceStart before Nov 12, 00:00 · UTC

Start your trial during launch. Choose yearly before your trial ends to keep this price.

Regular price $1,990 a year$1,490per year, per workspace · forever

Save nearly $900 every year

Billed yearly

Locked in forever while your annual subscription stays active.

30 days free, starting when you add your first Safe. No card needed.

Everything included

  • Unlimited members
  • Up to 10 Safes. A Safe on several chains counts once.
  • All 11 supported chains
  • Agents draft with Claude, Codex, or any MCP client
  • Anyone can sign from your link. No seat, no account.
  • Call decoding and simulation before signing

Bring your Safes into one inbox.

Connect your wallet to get started. Your Safes stay where they are.

Contact support

Chat couldn’t open. Email us with what you were trying to do and what happened.

hello@multisig.sh