BlockchainQuery agent skills for Claude Code, Cursor and RevampKey

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

Download RevampKey, free I have it: connect BlockchainQuery

Connect BlockchainQuery once and all 3 skills install themselves and stay up to date. Mac, Windows and Linux.

All 3 BlockchainQuery 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-only12 BlockchainQuery tools

Use BlockchainQuery well and safely

Guides the agent through reading live data from 60+ public networks through the BlockchainQuery connector: it confirms the chain and protocol first, picks the right tool family, keeps queries bounded, and reports failures honestly. It only reads and never sends or signs anything.

Use it when

You want a balance or transaction on a specific network and need the chain pinned down first.
A BlockchainQuery lookup returned zero, timed out or looked wrong and you need to know why.
You want on-chain data across several networks without the agent mixing up chains.

Tools it uses

list_chains
get_chain_info
evm_get_balance
evm_get_token_info
evm_call_contract
evm_call
evm_get_logs
evm_get_transaction
evm_get_receipt
cosmos_get_staking
cosmos_get_validators
cosmos_get_governance

Example

What's my ETH balance on Ethereum, Arbitrum and Base?

Here are the native ETH balances for that address: Ethereum mainnet 1.25 ETH, Arbitrum 0.40 ETH, Base 0.15 ETH. These are three separate balances on three separate chains. I queried all three and none failed.

Use in RevampKeyRead the full skill →

Read-only5 BlockchainQuery tools

Trace and explain a blockchain transaction

Takes a transaction hash, confirms the network, reads its status, value moves, fees and event logs, and explains what happened. It is read-only and separates on-chain facts from likely intent.

Use it when

You have a transaction hash and want to know if it succeeded
A payment or swap looks wrong and you need to see where the tokens went
You want a plain explanation of a failed contract call and the fee it cost

Tools it uses

get_chain_info
evm_get_transaction
evm_get_receipt
solana_get_transaction
cosmos_get_transaction

Example

Look up transaction 0xabc...123 on Polygon and tell me if it succeeded and where the tokens went.

Transaction 0xabc...123 on Polygon succeeded in block 61,204,552. The sender paid 0.0021 MATIC in fees. It moved 250 USDC from 0x9f1...e2 to a router contract, which sent 0.118 WETH to 0x4c7...8a. The action looks like a token swap; this is likely, since the logs show two transfers and no approval.

Use in RevampKeyRead the full skill →

Read-only7 BlockchainQuery tools

Check a wallet's balances across chains

Checks one address's native balances on several blockchain networks and reports them in a single table, resolving ENS or other domain names first. It reads only and never sends or moves funds.

Use it when

You want to see what an address holds on Ethereum, Arbitrum and Base at once
You have an ENS or Unstoppable Domain name and need its balances on several networks
You need a clear table of holdings with failed chains flagged rather than shown as zero

Tools it uses

evm_get_balance
evm_get_token_info
solana_get_balance
cosmos_get_balance
sui_get_balance
list_chains
get_chain_info

Example

What's the ETH balance of vitalik.eth on Ethereum, Arbitrum and Base?

vitalik.eth resolves to 0xd8dA...6045. Ethereum: 1,432.58 ETH. Arbitrum: 0.42 ETH. Base: 0 ETH. Polygon could not be reached after one retry, so it is listed as an error, not zero. Balances are native units and were queried just now.

Use in RevampKeyRead the full skill →

Get all 3 without copying a file

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

Download RevampKey

How BlockchainQuery skills work

Connect BlockchainQuery
The BlockchainQuery MCP server gives the agent its tools.
Ask in plain words
“Look up transaction 0xabc...123 on Polygon and tell me if it succeeded and where the tokens went.” 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 BlockchainQuery skills

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

About 1 minute · nothing to copy

Download RevampKey for Mac, Windows or Linux and sign in.
Open Connectors and connect BlockchainQuery. All 3 skills come with it and stay up to date; they go away when you remove the connector.
Ask in plain language, for example “Look up transaction 0xabc...123 on Polygon and tell me if it succeeded and where the tokens went.”
Download RevampKeyConnect BlockchainQuery · 1 click
Get RevampKey to connect BlockchainQuery
RevampKey is a free desktop app for Mac, Windows and Linux. Install it, sign in, and BlockchainQuery is one click away with its skills already attached.
Download RevampKey
Not now? Use the skills in your current tool
for s in essentials transaction-lookup-and-explain wallet-balance-check-across-chains; do curl -fsSL --create-dirs -o .claude/skills/blockchainquery-$s/SKILL.md https://revampkey.com/marketplace/blockchainquery/skills/$s/SKILL.md done
Other tools

Into this project’s .claude/skills folder

Connect the BlockchainQuery MCP server in Claude Code.

Run this in your project folder to add all 3 skills:

for s in essentials transaction-lookup-and-explain wallet-balance-check-across-chains; do
  curl -fsSL --create-dirs -o .claude/skills/blockchainquery-$s/SKILL.md https://revampkey.com/marketplace/blockchainquery/skills/$s/SKILL.md
done

Ask in plain language, for example “Look up transaction 0xabc...123 on Polygon and tell me if it succeeded and where the tokens went.”

Into the shared .agents/skills folder

Connect the BlockchainQuery MCP server in Cursor.

Run this in your project folder to add all 3 skills:

for s in essentials transaction-lookup-and-explain wallet-balance-check-across-chains; do
  curl -fsSL --create-dirs -o .agents/skills/blockchainquery-$s/SKILL.md https://revampkey.com/marketplace/blockchainquery/skills/$s/SKILL.md
done

Ask in plain language, for example “Look up transaction 0xabc...123 on Polygon and tell me if it succeeded and where the tokens went.”

Into the shared .agents/skills folder

Connect the BlockchainQuery MCP server in Codex.

Run this in your project folder to add all 3 skills:

for s in essentials transaction-lookup-and-explain wallet-balance-check-across-chains; do
  curl -fsSL --create-dirs -o .agents/skills/blockchainquery-$s/SKILL.md https://revampkey.com/marketplace/blockchainquery/skills/$s/SKILL.md
done

Ask in plain language, for example “Look up transaction 0xabc...123 on Polygon and tell me if it succeeded and where the tokens went.”

Into the shared .agents/skills folder

Connect the BlockchainQuery MCP server in VS Code.

Run this in your project folder to add all 3 skills:

for s in essentials transaction-lookup-and-explain wallet-balance-check-across-chains; do
  curl -fsSL --create-dirs -o .agents/skills/blockchainquery-$s/SKILL.md https://revampkey.com/marketplace/blockchainquery/skills/$s/SKILL.md
done

Ask in plain language, for example “Look up transaction 0xabc...123 on Polygon and tell me if it succeeded and where the tokens went.”

RevampKey or copy the files?

In RevampKey

One click when you connect BlockchainQuery
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 BlockchainQuery MCP server yourself
Works in Claude Code, Cursor, Codex and VS Code

See the command

BlockchainQuery skills FAQ

What is a BlockchainQuery agent skill?

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

Do the BlockchainQuery skills change anything on their own?

3 of the 3 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 BlockchainQuery.

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 BlockchainQuery; elsewhere you copy the folders into your project or skills directory.

Do I need the BlockchainQuery MCP server too?

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

BlockchainQuery MCP server setup · This page as Markdown

Put BlockchainQuery’s best workflows in your agent

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

Download RevampKey Connect BlockchainQuery · 1 click

All 3 BlockchainQuery skills

Use BlockchainQuery well and safely

Use it when

Tools it uses

Trace and explain a blockchain transaction

Use it when

Tools it uses

Check a wallet's balances across chains

Use it when

Tools it uses

Get all 3 without copying a file

How BlockchainQuery skills work

How to install BlockchainQuery skills

RevampKey or copy the files?

In RevampKey

Copy into your project

BlockchainQuery skills FAQ

Put BlockchainQuery’s best workflows in your agent

Skills for related tools