# chainquery

> chainquery — codejutsu04-chainquery. Use this tool when you need to query public Hedera mainnet data using natural language, converting English requests into SQL queries with a secure evaluation harness to prevent careless queries. It solves problems of data accessibility and simplifies complex queries, providing SQL outputs as citations. Ideal for use cases requiring efficient and secure data retrieval from the Hedera mainnet.

Canonical page: https://skillsregistry.net/skills/codejutsu04-chainquery  
JSON: https://api.skillsregistry.net/v1/skills/codejutsu04-chainquery

## Description

Text-to-SQL agent over public Hedera mainnet data. Ask in English, get the SQL back as the citation — with an eval harness whose cases are proven to reject careless queries. Also an MCP server.

## Trust

- **Trust score (0–1):** 0.79
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **License:** MIT
- **Updated:** 2026-09-28

## Source

- **Source listing:** [GitHub](https://github.com/codejutsu04/chainquery)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "codejutsu04-chainquery"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/codejutsu04-chainquery` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/codejutsu04-chainquery/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt