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Claude Code Skill guidance should be specific to Claude Code setup, not a generic Skill chooser. This page keeps that older search path useful without blurring the rest of the tooling docs. A Skill is a local SKILL.md workflow package. It teaches a compatible host how to choose 0xArchive route families, make bounded HTTP calls, inspect JSON, and preserve request IDs. It is not MCP, not CLI, and not a coding agent. Claude Code is the host.

Claude Code Fit

Use the 0xArchive Skill in Claude Code when the workflow benefits from reusable instructions and shell-backed request patterns. Use MCP Server instead when Claude Code should call typed MCP tools. Use CLI when a repeatable terminal command is enough. Use OpenAPI and SDKs when Claude is generating application code.

Setup Checklist

1

Install or place the Skill package

From the target repository, use the published package and copy its query workflow into Claude Code’s repo-scoped skill directory:
This path is for the local Skill surface. Do not substitute the hosted MCP URL or an API-key header for the Skill package.
2

Set the API key

Keep OXARCHIVE_API_KEY in the shell or project environment Claude Code uses. The Skill’s HTTP calls use X-API-Key; do not print the value.
3

Start with route selection

Ask Claude to name the venue family and exact route before running a request. A family prefix is not a callable path.
4

Keep requests bounded

Require one symbol, one route, one small window, and meta.request_id logging before widening.

Prompt Shape

Claude Task Checklist

For Claude Code, write the request as a small local task instead of a broad research prompt.

Safety Boundaries

The Skill should not install arbitrary packages, mutate unrelated files, or run broad exports by default. It should teach Claude Code to choose the route family, use X-API-Key, inspect freshness, parse the response envelope, and stop when the prompt lacks venue, symbol, or time-window information.

Next Step

Use Skill for the full surface description and MCP Claude setup if the Claude workflow should use MCP instead.
Last modified on August 28, 2026