Etherscan agent skills for Claude Code, Cursor and RevampKey

4 ready-made playbooks that teach an AI agent how to do real Etherscan work: which tools to call, what to check first, and when to stop and ask you.

Download RevampKey, free I have it: connect Etherscan

Connect Etherscan once and all 4 skills install themselves and stay up to date. Mac, Windows and Linux.

All 4 Etherscan skills

Each skill is one job. You ask in plain words and the agent loads the skill that matches, then follows its steps.

Start hereRead-only16 Etherscan tools

Use Etherscan with AI

Gives your AI assistant a clear method for querying Etherscan across 50+ EVM chains. It confirms the chain first, narrows queries to a time window, and states what the data can and cannot show.

Use it when

You want balances or transfers for an address on a specific chain
A query returned nothing and you need to know whether that is real
You are not sure which Etherscan lookup fits your question

Tools it uses

get_supported_chains
get_transaction_status
get_transaction_receipt_status
get_transaction_receipt
get_transaction_by_hash
get_native_balance
get_transactions
get_token_transfers
get_logs
get_internal_transactions
get_contract_source
get_contract_abi
get_contract_creation
get_block_by_timestamp
get_gas_oracle
render_etherscan_widget

Example

How many ETH did 0xAbc...123 receive on Ethereum mainnet in the last 30 days?

On Ethereum mainnet, 0xAbc...123 received 4.2 ETH across 3 incoming transfers between blocks 19,400,000 and 19,650,000. I used a block window covering the last 30 days and confirmed the chain before querying. Not established: any transfers from contracts that appear only as internal transactions, which I did not check here.

Use in RevampKeyRead the full skill →

Read-only8 Etherscan tools

Check a smart contract's verification and deployment with AI

Reviews a contract's published source and ABI, its deployer and creation details, and the admin events it emits, then states what verification proves and what it does not. It stays read-only.

Use it when

You are about to integrate with a contract and want to confirm its source is published.
A token or protocol contract needs a quick first check on who deployed it and whether it can be upgraded.
You want to know whether a contract is a clone or the project it claims to be.

Tools it uses

get_supported_chains
get_native_balance
get_contract_source
get_contract_abi
get_contract_creation
get_logs
get_token_transfers
get_transactions

Example

Is contract 0x6b175474e89094c44da98b954eedeac495271d0f on Ethereum verified, and who deployed it?

That contract is verified: source and ABI are both published, compiled with Solidity 0.5.12 and optimisation enabled. It was created by a deployer address in a single creation transaction, so it is not a proxy. Verification confirms the published source matches the deployed bytecode. It does not confirm the code is audited or free of admin controls. I did not find an upgrade authority in the sampled events.

Use in RevampKeyRead the full skill →

Read-only13 Etherscan tools

Investigate an Etherscan transaction with AI

Traces one transaction from its hash: confirms the chain and status first, then follows native value, internal calls, token transfers and decoded logs outward. It only reports movements the chain data supports and never takes any on-chain action.

Use it when

A transaction failed or is stuck and you want to know why
You need to see where funds went after a given transaction
You want a checked account of what a suspicious transfer actually did

Tools it uses

get_supported_chains
get_transaction_status
get_transaction_receipt_status
get_transaction_by_hash
get_transaction_receipt
get_internal_transactions
get_token_transfers
get_logs
get_contract_abi
get_contract_source
get_transactions
get_block_by_timestamp
get_gas_oracle

Example

Trace transaction 0x9f2c... on Ethereum and tell me where the 12 ETH went.

Status: success, block 19482310. The top-level transfer moved 0.4 ETH, but the bulk of value came from two internal transactions from the router contract, totalling 12 ETH forwarded to a swap pool. I see 3 token transfers in the logs that match the internal calls. Not established: the final destination after the pool, since the next hop is split across two addresses.

Use in RevampKeyRead the full skill →

Read-only9 Etherscan tools

Review a wallet's activity over a period

Reviews one Ethereum-style address over a fixed block window, reconciling native and token balances against transfers, internal transactions and gas. It asks you to confirm the chain and window first and reports any gap it cannot explain.

Use it when

An accountant needs a reconciled statement for one wallet for a tax year
A compliance analyst wants to know how much moved in and out of an address last quarter
A founder asks what a treasury wallet did during a given month

Tools it uses

get_supported_chains
get_block_by_timestamp
get_native_balance
get_transactions
get_internal_transactions
get_token_transfers
get_transaction_by_hash
get_transaction_status
get_transaction_receipt_status

Example

Review wallet 0x3f2a...c91d on Ethereum mainnet for March 2025 and tell me whether the balances reconcile.

Window: block 22,000,412 to block 22,213,057 (1 March to 31 March 2025). Opening ETH 14.2, closing ETH 11.8. Inflows 3.1 ETH across 9 transactions, outflows 5.4 ETH across 22 transactions, gas paid 0.7 ETH. Expected closing 14.2 + 3.1 - 5.4 - 0.7 = 11.2 ETH, actual 11.8 ETH, difference 0.6 ETH, traced to one internal transaction not in the normal list. Two failed transactions excluded from flows.

Use in RevampKeyRead the full skill →

Get all 4 without copying a file

RevampKey adds the skills when you connect Etherscan, updates them for you and removes them when you disconnect.

Download RevampKey

How Etherscan skills work

Connect Etherscan
The Etherscan MCP server gives the agent its tools.
Ask in plain words
“Is contract 0x6b175474e89094c44da98b954eedeac495271d0f on Ethereum verified, and who deployed it?” Each SKILL.md says when it applies, so only the one that fits is loaded.
Approve any change
The agent calls the tools in order, checks its work, and shows you any change before it makes it.

How to install Etherscan skills

In RevampKey the skills install themselves when you connect Etherscan. In other tools each skill is one folder with a SKILL.md file, and you also need the Etherscan MCP server connected there.

About 1 minute · nothing to copy

Download RevampKey for Mac, Windows or Linux and sign in.
Open Connectors and connect Etherscan. All 4 skills come with it and stay up to date; they go away when you remove the connector.
Ask in plain language, for example “Is contract 0x6b175474e89094c44da98b954eedeac495271d0f on Ethereum verified, and who deployed it?”
Download RevampKeyConnect Etherscan · 1 click
Get RevampKey to connect Etherscan
RevampKey is a free desktop app for Mac, Windows and Linux. Install it, sign in, and Etherscan is one click away with its skills already attached.
Download RevampKey
Not now? Use the skills in your current tool
for s in essentials contract-verification-check transaction-investigation wallet-activity-review; do curl -fsSL --create-dirs -o .claude/skills/etherscan-$s/SKILL.md https://revampkey.com/marketplace/etherscan/skills/$s/SKILL.md done
Other tools

Into this project’s .claude/skills folder

Connect the Etherscan MCP server in Claude Code.

Run this in your project folder to add all 4 skills:

for s in essentials contract-verification-check transaction-investigation wallet-activity-review; do
  curl -fsSL --create-dirs -o .claude/skills/etherscan-$s/SKILL.md https://revampkey.com/marketplace/etherscan/skills/$s/SKILL.md
done

Ask in plain language, for example “Is contract 0x6b175474e89094c44da98b954eedeac495271d0f on Ethereum verified, and who deployed it?”

Into the shared .agents/skills folder

Connect the Etherscan MCP server in Cursor.

Run this in your project folder to add all 4 skills:

for s in essentials contract-verification-check transaction-investigation wallet-activity-review; do
  curl -fsSL --create-dirs -o .agents/skills/etherscan-$s/SKILL.md https://revampkey.com/marketplace/etherscan/skills/$s/SKILL.md
done

Ask in plain language, for example “Is contract 0x6b175474e89094c44da98b954eedeac495271d0f on Ethereum verified, and who deployed it?”

Into the shared .agents/skills folder

Connect the Etherscan MCP server in Codex.

Run this in your project folder to add all 4 skills:

for s in essentials contract-verification-check transaction-investigation wallet-activity-review; do
  curl -fsSL --create-dirs -o .agents/skills/etherscan-$s/SKILL.md https://revampkey.com/marketplace/etherscan/skills/$s/SKILL.md
done

Ask in plain language, for example “Is contract 0x6b175474e89094c44da98b954eedeac495271d0f on Ethereum verified, and who deployed it?”

Into the shared .agents/skills folder

Connect the Etherscan MCP server in VS Code.

Run this in your project folder to add all 4 skills:

for s in essentials contract-verification-check transaction-investigation wallet-activity-review; do
  curl -fsSL --create-dirs -o .agents/skills/etherscan-$s/SKILL.md https://revampkey.com/marketplace/etherscan/skills/$s/SKILL.md
done

Ask in plain language, for example “Is contract 0x6b175474e89094c44da98b954eedeac495271d0f on Ethereum verified, and who deployed it?”

RevampKey or copy the files?

In RevampKey

One click when you connect Etherscan
Updated for you when a skill improves
Removed when you disconnect
The MCP server is set up for you
800+ other connectors, same way

Download free

Copy into your project

One command per project
Run it again to get updates
You connect the Etherscan MCP server yourself
Works in Claude Code, Cursor, Codex and VS Code

See the command

Etherscan skills FAQ

What is a Etherscan agent skill?

A SKILL.md file: a short playbook an AI agent loads when your request matches it. Each Etherscan skill describes one job, which Etherscan tools to use in which order, what to check first and when to stop and ask you.

Do the Etherscan skills change anything on their own?

4 of the 4 only read. The others tell the agent to show you the change and wait for a yes before it creates, edits or deletes anything in Etherscan.

Which tools can use these skills?

Any agent that reads the open Agent Skills format: Claude Code, Cursor, Codex, VS Code with Copilot and RevampKey. In RevampKey they are attached when you connect Etherscan; elsewhere you copy the folders into your project or skills directory.

Do I need the Etherscan MCP server too?

Yes. The skills tell the agent how to do the work; the Etherscan MCP server gives it the tools to do it. The Etherscan MCP setup guide covers every client.

Etherscan MCP server setup · This page as Markdown

Put Etherscan’s best workflows in your agent

Download RevampKey, connect Etherscan and ask your first question in about a minute.

Download RevampKey Connect Etherscan · 1 click

All 4 Etherscan skills

Use Etherscan with AI

Use it when

Tools it uses

Check a smart contract's verification and deployment with AI

Use it when

Tools it uses

Investigate an Etherscan transaction with AI

Use it when

Tools it uses

Review a wallet's activity over a period

Use it when

Tools it uses

Get all 4 without copying a file

How Etherscan skills work

How to install Etherscan skills

RevampKey or copy the files?

In RevampKey

Copy into your project

Etherscan skills FAQ

Put Etherscan’s best workflows in your agent

Skills for related tools