Tendril

One wallet. Every chain. Same address.

Tendril gives you a single contract identity across every Ethereum L2. Plant a tendril to any chain and control it from your root wallet on L1 — no multisigs, no bridge UIs, no per-chain key management.

Why

Managing contracts across L2s today means separate deployments, separate admin keys, and separate transactions on each chain. Tendril collapses that into one operation from one address:

• Same address everywhere — Deterministic CREATE2 deployment means your tendril lives at the same address on every chain
• One root, full control — Sign once on L1, execute on any L2 through native bridge messaging
• Deploy contracts cross-chain — Spin up upgradeable proxies on any chain from your root wallet
• No trusted intermediaries — Uses native L1-to-L2 bridges with address aliasing, not relayers or oracles

How it works

A tendril contract is deployed to the same deterministic address on every chain via the Arachnid CREATE2 deployer. On the root chain (L1), the admin is your wallet. On L2s, the admin is the address-aliased tendril contract, so only cross-chain messages from the parent tendril are authorized.

When you execute a command, the CLI encodes your call, wraps it in the appropriate bridge message, and sends it from your root. The message flows through the bridge and executes on the target chain.

Setup

bun i && forge install
cp .env.example .env

Variable	Description
ROOT	Your root admin address
PRIVATE_KEY	Private key for signing (optional if using keystore)
ETH_KEYSTORE	Foundry keystore name
PLANT_SEED	CREATE2 salt for planting (default: zero)

# Plant your first tendril
bun tendril plant sepolia

CLI

bun tendril <command> [options]

Global options

Flag	Description
--root <address>	Root admin address (overrides ROOT env)
--sim	Simulate without sending
-v, --verbose	Detailed output

Commands

plant <chain> — Deploy a tendril to a new chain

bun tendril plant base-sepolia

addr — Show the tendril address for the current root

bun tendril addr

execute <chain> <to> <sig> [args...] — Execute a call through a tendril

bun tendril execute base-sepolia 0xAddr "transfer(address,uint256)" 0xTo 1000

deploy <chain> <impl> — Deploy an upgradeable proxy through a tendril

bun tendril deploy base-sepolia 0xImpl --salt 0x01 --init "initialize(address)" --init-args 0xOwner

inspect — Show deployment status across all chains

bun tendril inspect

Configured Chains

Chain	Type
mainnet	Root
sepolia	Root
base	OP
base-sepolia	OP
optimism	OP
op-sepolia	OP
arbitrum	Arb
arb-sepolia	Arb

Support

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