hub / github.com/OffchainLabs/arbitrum-classic

github.com/OffchainLabs/arbitrum-classic @v1.4.6

repository ↗ · DeepWiki ↗ · release v1.4.6 ↗ · + Follow

6,228 symbols 15,532 edges 372 files 3,768 documented · 61% 28 cross-repo links ● updated 4mo agov1.4.6 · 2025-09-16★ 1,99716 open issues

What it actually does AI analysis from the code graph — generated when you open this

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README

Arbitrum Classic Monorepo

This repo represents the old "classic" Arbitrum tech stack; Arbitrum One was upgraded to use the Nitro tech in August of 2022.

For the current Arbitrum Nitro codebase, see Nitro.

This repository is offered under the Apache 2.0 license. See LICENSE for details.

Extension points exported contracts — how you extend this code

Message (Interface)

(no doc) [6 implementers]

packages/arb-evm/message/message.go

TransactionBatcher (Interface)

(no doc) [6 implementers]

packages/arb-rpc-node/batcher/batcher.go

ReceiptFetcher (Interface)

(no doc) [6 implementers]

packages/arb-util/ethutils/client.go

Message (Interface)

(no doc) [6 implementers]

packages/arb-bridge-eth/test/common/challenge.ts

Move (Interface)

(no doc) [4 implementers]

packages/arb-node-core/challenge/execution.go

RollupCreatedEvent (Interface)

(no doc)

packages/tools/scripts/setup_validators_demo.ts

QueuedUpdate (Interface)

(no doc)

packages/arb-upgrades/types.ts

ChainConfigOption (Interface)

(no doc) [15 implementers]

packages/arb-evm/message/init.go

Core symbols most depended-on inside this repo

Cmp

called by 331

packages/arb-util/common/timeblocks.go

Error

called by 255

packages/arb-rpc-node/arbostestcontracts/simple.go

String

called by 230

packages/arb-util/value/values.go

Bytes

called by 165

packages/arb-util/common/hash.go

Add

called by 164

packages/arb-rpc-node/blockcache/blockcache.go

deploy

called by 142

packages/arb-bridge-eth/test/nitroMigrationManager.ts

GetByInt64

called by 131

packages/arb-util/value/tuple.go

ToEthAddress

called by 121

packages/arb-util/common/address.go

Shape

Method 3,601

Function 1,369

Struct 1,150

Interface 69

TypeAlias 29

Class 8

Enum 2

Languages

Go97%

TypeScript3%

Python1%

Modules by API surface

packages/arb-util/ethbridgecontracts/RollupAdminFacet.go327 symbols

packages/arb-util/ethbridgecontracts/RollupUserFacet.go271 symbols

packages/arb-rpc-node/arbostestcontracts/simple.go208 symbols

packages/arb-util/ethbridgecontracts/GasRefunder.go157 symbols

packages/arb-util/ethbridgecontracts/SequencerInbox.go145 symbols

packages/arb-util/ethbridgecontracts/Inbox.go131 symbols

packages/arb-util/ethbridgecontracts/Challenge.go124 symbols

packages/arb-evm/arboscontracts/ArbOwner.go114 symbols

packages/arb-util/ethbridgecontracts/Bridge.go113 symbols

packages/arb-util/ethbridgecontracts/Outbox.go95 symbols

packages/arb-rpc-node/arbostestcontracts/ethCallTester.go82 symbols

packages/arb-util/ethbridgecontracts/RollupCreator.go79 symbols

Dependencies from manifests, versioned

github.com/btcsuite/btcdv0.22.1 · 1×

github.com/c-bata/go-promptv0.2.6 · 1×

github.com/ethereum/go-ethereumv1.10.18 · 1×

github.com/ethersphere/beev1.6.1 · 1×

github.com/go-redis/redis/v8v8.11.4 · 1×

github.com/gobwas/wsv1.1.0 · 1×

github.com/gobwas/ws-examplesv0.0.0-2019062512282 · 1×

github.com/golang-jwt/jwtv3.2.2+incompatible · 1×

github.com/gorilla/handlersv1.5.1 · 1×

github.com/gorilla/muxv1.8.0 · 1×

github.com/hashicorp/golang-lruv0.5.5-0.20210104140 · 1×

github.com/heptiolabs/healthcheckv0.0.0-2018080714561 · 1×

For agents

$ claude mcp add arbitrum-classic \
  -- python -m otcore.mcp_server <graph>

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