$49 a month per team

Hosted OpenZeppelin Monitor and Relayer for one team, invoiced in USD. Two fixed prices for the move itself, if you are coming off Defender, off a raw key on a server or off a self-hosted thirdweb Engine, and a monthly release check if you run the stack yourself.

Hosting	$49a month, first month free	The Monitor and up to three relayers for one team, signing with your key. Cancel any time and keep the files.
Defender stack move	$400fixed	Up to three relayers and ten monitors set up on your keys, the address changes prepared as one Safe batch, and the SDK swap as a pull request in one service.
Server key or thirdweb Engine move	$300fixed	For a team signing with a raw private key on a server today: a new key in your KMS or Turnkey account, a relayer in front of it, the role changes as one Safe batch, and the old key retired. For a self-hosted thirdweb Engine v2: its local and AWS KMS wallets moved to the Relayer at the same addresses, its contract subscriptions set up as monitors, one test transaction per relayer, and your webhook receivers checked against the new signatures.
Release check	$299a month, first check free	For teams that run Monitor and Relayer themselves: each new Relayer release is run against your configuration on a local chain, with a test key in place of yours, before you upgrade, with an answer on any failure within one business day.
Anything bigger	Quoted	More relayers, more chains or high transaction volume: ask and we will quote it.

Included in hosting

• Monitors on any channel the Monitor supports: Slack, Discord, Telegram, email, webhook, script. Your exported configuration, imported as it is.
• Up to three relayers, sending with your keys under the policies you set.
• Each release staged against a copy of your configuration before your stack gets it, with an upgrade note.
• If a bug hits your stack, Nonceworks reproduces it and publishes the files.
• Scheduled calls for Chainlink-style upkeeps, from your own address, once the runner is past testing: so far it has run against Relayer 1.8.0 on a local chain only.

Before a move

Hosting after either move is $49 a month. AWS KMS signing has been tested end to end against a real AWS key; Google Cloud KMS and Turnkey have not, so before a move we run your key end to end on a testnet. So far the thirdweb Engine move has been tested end to end on a local chain only, with Engine's AWS KMS wallet against a KMS emulator. The Defender migration guide has the steps for a move off Defender.

There is no signup form: send us the configuration on Telegram or by email.

Invoices are in USD. The home page lists the limits of a one-person service, and the security page covers what the grant on your key allows.