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Skills/Backend & APIs
coinbase avatar

Query Onchain Data

coinbase/agentic-wallet-skillsOfficial

This lets you run SQL queries against onchain data on Base (blocks, transactions, decoded events) and pay per query using x402 micropayments. It's built on Coinbase's CDP SQL API and uses CoinbaseQL, a ClickHouse dialect. The main thing to know is that queries against the events table must filter on indexed fields (event_signature, contract address, or block_timestamp) or you'll hit performance walls. The skill handles wallet status checks and constructs the npx awal commands with proper escaping to avoid shell injection. Useful when you need to pull Transfer events, analyze contract activity, or grab transaction history without running your own node. The micropayment model means you pay only for what you query, though you need the authenticate-wallet skill set up first.

installs
2.1K
GitHub stars
127
last updated
Aug 21, 2026
View on GitHubSave

Install

$ npx -y skills add coinbase/agentic-wallet-skills --skill query-onchain-data --agent claude-code

Installs into .claude/skills of the current project.

Files

This lets you run SQL queries against onchain data on Base (blocks, transactions, decoded events) and pay per query using x402 micropayments. It's built on Coinbase's CDP SQL API and uses CoinbaseQL, a ClickHouse dialect. The main thing to know is that queries against the events table must filter on indexed fields (event_signature, contract address, or block_timestamp) or you'll hit performance walls. The skill handles wallet status checks and constructs the npx awal commands with proper escaping to avoid shell injection. Useful when you need to pull Transfer events, analyze contract activity, or grab transaction history without running your own node. The micropayment model means you pay only for what you query, though you need the authenticate-wallet skill set up first.

Browse the repository on GitHub

Sponsors

SnugThe clipboard manager you and your agent can use, safelyAgent CaffeineClose your lid, come back to finished workWaxBlock anything with supervision, without erasing your iPhoneOpen StepsSponsoredFree and open-source skills that make AI coding agents easier to understand, verify, and control.

Details

Repository
github.com/coinbase/agentic-wallet-skills
Categories
Backend & APIs, AI & Agent Building, Finance & Trading, Databases, Web3 & Blockchain

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