Tools & SDKs Support Matrix

One page that differentiates the OP Stack SDK surfaces and developer tools — what each is for, who owns it, where its canonical docs live, and its support status.

Items on this page refer to third-party projects or products that are not maintained by Optimism. They are provided for convenience; refer to each project’s own documentation as the source of truth.

This page is the canonical hub for the tools and SDKs that surround the OP Stack. Following the content guide, each listing links exactly one canonical documentation home — this page routes, it does not restate. What gets listed here (and what gets removed) is governed by the listing criteria.

Support Status Levels

Status	Meaning
Production	Stable and recommended for production use by its owner.
Developer preview	Usable today, but its owner has declared it not yet ready for production; APIs may change.
Experimental	A staging ground. Features may change, move, or be upstreamed elsewhere.

The Matrix

Tool	Purpose	Owner	Canonical docs	Support status
viem/op-stack	General-purpose TypeScript client for OP Stack chains: deposits, withdrawals, L1 gas estimation, and all standard chain interaction, built into viem	wevm (third party)	viem.sh/op-stack	Production
@eth-optimism/viem	viem extension for OP Stack features that have not yet been upstreamed into viem — Superchain interop actions and utilities; used by this site’s bridging and interop tutorials	Optimism (ecosystem repo)	Package README & SDK reference	Experimental
Actions SDK (@eth-optimism/actions-sdk)	High-level abstractions for building onchain apps — wallet, lend, and swap namespaces over Superchain protocols	Optimism (actions repo)	Actions quickstart and reference on this site	Developer preview
wagmi	React hooks for Ethereum apps; works with OP Stack chains as with any EVM chain	wevm (third party)	wagmi.sh	Production
supersim	Local Superchain simulator: one L1 plus multiple OP Stack L2s for testing L1↔L2 and L2↔L2 message passing without deploying to live networks	Optimism (supersim repo)	Supersim docs	Developer preview (all releases are alpha pre-releases; interop features in active development)
super-cli (sup)	Foundry companion CLI for multichain workflows: deploy and verify contracts on multiple chains at once, bridge funds, use connected wallets	Optimism (super-cli repo)	Repository README	Experimental
superchain-registry tooling	Not an SDK — the source-of-truth library of chain configs that OP Stack software (such as op-node and op-geth) consumes, plus the just tasks and validation checks used to add and verify a chain	Optimism (superchain-registry repo)	Registry operations docs	Production
op-alloy	Rust crates for interfacing with OP Stack chains: consensus, RPC, engine, and network types built on the Alloy ecosystem; the type layer consumed by kona and op-reth	Optimism (rust/op-alloy in the monorepo)	op-alloy docs on this site	Developer preview (owner-declared not yet production-ready; APIs may change)
op-revm	Rust crate implementing the OP Stack’s EVM: a revm variant with deposit transactions, L1 and operator fee accounting, and OP-specific precompiles; the EVM inside op-reth and kona	Optimism (rust/op-revm in the monorepo, vendored from upstream bluealloy/revm)	op-revm docs on this site	Production (consumed transitively through op-reth or kona by most users)

Choose an SDK Surface

Three of the rows above are TypeScript SDK surfaces that are easy to confuse. The distinction:

• Start with viem/op-stack. viem provides first-class OP Stack support in the core library: extend any viem client with publicActionsL2() (and friends) imported from viem/op-stack to get deposits, withdrawals, and L1 gas estimation. If a feature is available here, this is its production home. Super Root withdrawal proving requires viem 2.51.0 or later.
• Reach for @eth-optimism/viem when you need what viem does not have yet. The package’s stated goal is to upstream as much as possible into viem itself; until then it is the home of Superchain interop actions and other pre-production features. The interop tutorials and bridging tutorials on this site use it.
• Use the Actions SDK for app-level building blocks, not chain plumbing. Where the two viem surfaces expose protocol operations, the Actions SDK offers wallet, lend, and swap namespaces for building end-user apps. It is a developer preview and not yet ready for production use.

Building in Rust rather than TypeScript? Start from op-alloy for OP Stack types and RPC surfaces and op-revm for execution, and see the Stack Components index for the Rust clients themselves (op-reth, kona-node, kona-client).

Using wagmi With the OP Stack

If you build with React, you likely start from wagmi — and it works with OP Stack chains out of the box. OP Stack chains are standard EVM chains, and wagmi/chains ships their definitions (optimism, base, zora, and every other chain from viem/chains). Nothing OP-specific is required for reads, writes, or wallet connections.

For OP Stack–specific operations — deposits, withdrawals, interop — use the fact that wagmi is a wrapper over viem:

1. Get a viem client from wagmi with the useClient or useConnectorClient hooks, following wagmi’s own viem guide.
2. Extend that client with the viem/op-stack actions and call them directly.

For Superchain interop specifically, the experimental @eth-optimism/wagmi package provides React hooks (such as useSendL2ToL2Message) over @eth-optimism/viem. Treat it like its underlying package: experimental.

Next Steps

• Read the listing criteria and maintenance-sweep policy that govern this page.
• Adding a chain rather than building an app? See Join the Superchain Registry.
• For where content belongs in general, see the content guide.