#arbitrum #chainrails #cross-chain #bridge

ArbiLink — Arbitrum Agent Plugin

OpenClaw plugin enabling AI agents to interact with Arbitrum — read balances, check gas, query tokens, read smart contracts, verify agent identity, and perform cross-chain transactions via ChainRails.

Prince Justice Sena Essiel@justiceessielp

Install

openclaw plugins install clawhub:arbilink

ArbiLink — Arbitrum Agent Plugin for OpenClaw

An OpenClaw plugin that enables AI agents to interact with the Arbitrum ecosystem. Built for the ArbiLink Agentic Bounty.

Features

9 AI-accessible tools for Arbitrum chain interaction
ETH & ERC-20 balances on Arbitrum One and Sepolia
Gas prices, block info, and transaction lookups
Arbitrary smart contract reads via ABI
EIP-8004 Agent Identity verification and discovery
CLI commands for all operations
Gateway RPC methods for programmatic access

Quick Start

Install

bash

openclaw plugins install @arbilink/arbitrum-agent-plugin

Configure

Add to your OpenClaw config:

json

{
  "plugins": {
    "allow": ["arbilink"],
    "entries": {
      "arbilink": {
        "config": {
          "enabled": true,
          "defaultChain": "arbitrum",
          "chainrailsApiKey": "YOUR_CHAINRAILS_API_KEY"
        }
      }
    }
  }
}

Use

The plugin registers up to 16 tools automatically available to AI agents:

Arbitrum Tools (always available)

Tool	What it does
`arbilink_balance`	ETH balance lookup
`arbilink_token_balance`	ERC-20 token balance
`arbilink_gas`	Current gas price
`arbilink_block`	Block information
`arbilink_tx`	Transaction lookup
`arbilink_read_contract`	Read any contract
`arbilink_agent_check`	EIP-8004 agent verification
`arbilink_registry_stats`	Registry statistics
`arbilink_discover_agents`	Discover registered agents

Cross-Chain Tools (requires chainrailsApiKey)

Tool	What it does
`arbilink_supported_chains`	List supported networks
`arbilink_cross_chain_balance`	Balances across all chains
`arbilink_cross_chain_quote`	Best quote for cross-chain transfer
`arbilink_find_routes`	Optimal bridge routes
`arbilink_supported_bridges`	Available bridges between chains
`arbilink_create_intent`	Create cross-chain payment
`arbilink_intent_status`	Track payment status

CLI

bash

openclaw arbilink balance 0x742d35Cc6634C0532925a3b844Bc9e7595f2bD18
openclaw arbilink gas --chain arbitrum-sepolia
openclaw arbilink agent-check 0x1234...

Gateway RPC

bash

openclaw gateway call arbilink.balance '{"address": "0x..."}'
openclaw gateway call arbilink.gas
openclaw gateway call arbilink.agent-check '{"address": "0x..."}'

EIP-8004 Integration

This plugin integrates with the EIP-8004 Trustless Agents standard via the public oracle at oracle.x402endpoints.online. Agents can verify each other's on-chain identity before interacting — enabling trustless agent-to-agent communication on Arbitrum.

Registry contract: 0x8004A169FB4a3325136EB29fA0ceB6D2e539a432

Tech Stack

OpenClaw plugin SDK
viem for type-safe chain interaction
Arbitrum One (chain 42161) + Arbitrum Sepolia (chain 421614)
EIP-8004 Oracle API

Documentation

See SKILL.md for detailed skill documentation, architecture diagram, and use cases.

License

MIT