# BlockchainQuery agent skills for Claude Code, Cursor and RevampKey

> Ready-made BlockchainQuery playbooks for AI agents: trace and explain a blockchain transaction, check a wallet's balances across chains. Free SKILL.md files for Claude Code, Cursor and Codex, or one click in RevampKey.

## Skills

- [Use BlockchainQuery well and safely](https://revampkey.com/marketplace/blockchainquery/skills/essentials.md): 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.
- [Trace and explain a blockchain transaction](https://revampkey.com/marketplace/blockchainquery/skills/transaction-lookup-and-explain.md): 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.
- [Check a wallet's balances across chains](https://revampkey.com/marketplace/blockchainquery/skills/wallet-balance-check-across-chains.md): 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.

## Install

- RevampKey: connect BlockchainQuery at https://revampkey.com/marketplace/blockchainquery; the skills come with it.
- Any Agent Skills tool, into the current project:

```bash
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
```

### 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.

MCP setup guide: https://revampkey.com/marketplace/blockchainquery.md