ToolJet Marketplace Plugin Builder
ToolJet/ToolJet
Turns an API description, such as an OpenAPI file or a Postman collection, into a connector plugin for ToolJet's marketplace and checks it with the repo's validator.
Operate Kraken public market APIs through UXC with a curated OpenAPI schema, market-first discovery, and explicit private-auth boundary notes.
Install Kraken Openapi Skill
$ npx skills add holon-run/uxc --skill kraken-openapi-skill -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install holon-run/uxc kraken-openapi-skill --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/holon-run/uxc.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/kraken-openapi-skill .claude/skills/kraken-openapi-skill && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "kraken-openapi-skill" agent skill from https://github.com/holon-run/uxc/tree/main/skills/kraken-openapi-skill into .claude/skills/kraken-openapi-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "kraken-openapi-skill", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/holon-run/uxc/tree/main/skills/kraken-openapi-skillType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add holon-run/uxc --skill kraken-openapi-skill -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install holon-run/uxc kraken-openapi-skill --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/holon-run/uxc.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/kraken-openapi-skill .agents/skills/kraken-openapi-skill && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "kraken-openapi-skill" agent skill from https://github.com/holon-run/uxc/tree/main/skills/kraken-openapi-skill into .agents/skills/kraken-openapi-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "kraken-openapi-skill", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add holon-run/uxc --skill kraken-openapi-skill -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install holon-run/uxc kraken-openapi-skill --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/holon-run/uxc.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/kraken-openapi-skill .cursor/skills/kraken-openapi-skill && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "kraken-openapi-skill" agent skill from https://github.com/holon-run/uxc/tree/main/skills/kraken-openapi-skill into .cursor/skills/kraken-openapi-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "kraken-openapi-skill", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/holon-run/uxc.git --path skills/kraken-openapi-skill--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add holon-run/uxc --skill kraken-openapi-skill -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install holon-run/uxc kraken-openapi-skill --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/holon-run/uxc.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/kraken-openapi-skill .gemini/skills/kraken-openapi-skill && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "kraken-openapi-skill" agent skill from https://github.com/holon-run/uxc/tree/main/skills/kraken-openapi-skill into .gemini/skills/kraken-openapi-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "kraken-openapi-skill", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install holon-run/uxc kraken-openapi-skillInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add holon-run/uxc --skill kraken-openapi-skill -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/holon-run/uxc.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/kraken-openapi-skill .github/skills/kraken-openapi-skill && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "kraken-openapi-skill" agent skill from https://github.com/holon-run/uxc/tree/main/skills/kraken-openapi-skill into .github/skills/kraken-openapi-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "kraken-openapi-skill", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add holon-run/uxc --skill kraken-openapi-skill -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install holon-run/uxc kraken-openapi-skill --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/holon-run/uxc.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/kraken-openapi-skill .opencode/skills/kraken-openapi-skill && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "kraken-openapi-skill" agent skill from https://github.com/holon-run/uxc/tree/main/skills/kraken-openapi-skill into .opencode/skills/kraken-openapi-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "kraken-openapi-skill", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
kraken-openapi-skill- GitHub stars
- 116
- Token cost
- ~662 tokens
- SKILL.md length
- 242 words
- Files
- 6 (incl. scripts, references)
- Skills in repo
- 62
- Repo updated
- First seen
- Licence
- MIT
At a glance
Operate Kraken public market APIs through UXC with a curated OpenAPI schema, market-first discovery, and explicit private-auth boundary notes.
- Works in 3 steps: Use the fixed link command by default → Inspect operation help before execution → Prefer narrow pair reads first
- Tasks that involve OpenAPI specifications
- SKILL.md covers Prerequisites, Scope, Authentication and Core Workflow, plus 3 more sections
- Runs Shell scripts from its folder; reaches api.kraken.com
What it does
Kraken Openapi Skill is an agent skill from holon-run/uxc. Operate Kraken public market APIs through UXC with a curated OpenAPI schema, market-first discovery, and explicit private-auth boundary notes.
Its SKILL.md is about 660 tokens, which your agent loads only when the skill is triggered. The skill folder holds 8 other files, including scripts and reference files (for example `agents/openai.yaml`, `references/kraken-public.openapi.json` and `references/kraken-spot-futures.openapi.json`).
It sits in Backend & APIs, covering OpenAPI specifications. It works with OpenAPI. The repository describes itself as: A unified CLI for discovering and invoking tools across OpenAPI, MCP, GraphQL, gRPC, and JSON-RPC. The licence is MIT.
When your agent uses it
- Tasks that involve OpenAPI specifications
Example prompts
- “/kraken-openapi-skill”
Requirements
- A Bash shell
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- Use the fixed link command by default
- Inspect operation help before execution
- Prefer narrow pair reads first
What it can do on your machine
Read from SKILL.md and the folder at commit 562d47c. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Shell), which the agent can run.
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
api.kraken.com
Also links to:
docs.kraken.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Kraken Openapi Skill loads about 662 tokens when it runs, and up to ~3.3k if it reads all its reference files. Until then it costs about 41 tokens; SKILL.md has 242 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
SKILL.md
The full file from holon-run/uxc at commit 562d47c, republished under its MIT licence (© holon-run). 242 words, ~662 tokens.
Download SKILL.mdSave it as
.claude/skills/kraken-openapi-skill/SKILL.md (or your agent's skills folder). This skill also uses 5 other files; get the full folder from GitHub.- name
- kraken-openapi-skill
- description
- Operate Kraken public market APIs through UXC with a curated OpenAPI schema, market-first discovery, and explicit private-auth boundary notes.
Kraken REST Skill
Use this skill to run Kraken public market-data operations through uxc + OpenAPI.
Reuse the uxc skill for shared execution, auth, and error-handling guidance.
Prerequisites
uxcis installed and available inPATH.- Network access to
https://api.kraken.com. - Access to the curated OpenAPI schema URL:
https://raw.githubusercontent.com/holon-run/uxc/main/skills/kraken-openapi-skill/references/kraken-public.openapi.json
Scope
This skill covers a curated Kraken public surface for:
- server time
- asset pair metadata
- ticker reads
- OHLC candles
- order book snapshots
This skill does not cover:
- private account or trade endpoints in v1
- Kraken FIX
- broader non-core platform products
Authentication
Public market endpoints in this skill do not require credentials.
Kraken private REST endpoints use provider-specific header signing and nonce handling. Keep this v1 skill public-data-only until a reusable Kraken signer flow exists in uxc.
Core Workflow
Use the fixed link command by default:
command -v kraken-openapi-cli- If missing, create it:
uxc link kraken-openapi-cli https://api.kraken.com --schema-url https://raw.githubusercontent.com/holon-run/uxc/main/skills/kraken-openapi-skill/references/kraken-public.openapi.json kraken-openapi-cli -h
Inspect operation help before execution:
kraken-openapi-cli get:/0/public/Time -hkraken-openapi-cli get:/0/public/Ticker -h
Prefer narrow pair reads first:
kraken-openapi-cli get:/0/public/Ticker pair=XBTUSDkraken-openapi-cli get:/0/public/Depth pair=XBTUSD count=20
Operations
get:/0/public/Timeget:/0/public/AssetPairsget:/0/public/Tickerget:/0/public/OHLCget:/0/public/Depth
Guardrails
- Keep automation on the JSON output envelope; do not use
--text. - Parse stable fields first:
ok,kind,protocol,data,error. - Treat this v1 skill as read-only.
- Kraken pair naming can differ from other venues. Check
AssetPairsbefore assuming symbol strings. kraken-openapi-cli <operation> ...is equivalent touxc https://api.kraken.com --schema-url <kraken_public_openapi_schema> <operation> ....
References
- Usage patterns:
references/usage-patterns.md - Curated OpenAPI schema:
references/kraken-public.openapi.json - Official Kraken API intro: https://docs.kraken.com/api/docs/guides/global-intro
© holon-run, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 5 other files (scripts, references) in skills/kraken-openapi-skill of holon-run/uxc.
- SKILL.md
- agents/openai.yaml
- references/kraken-public.openapi.json
- references/kraken-spot-futures.openapi.json
- references/usage-patterns.md
- scripts/validate.sh
Open the folder on GitHubat commit 562d47c
Compare with similar skills
Kraken Openapi Skill next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Kraken Openapi Skill this skillholon-run/uxc | 116 | — | ~662 | Automated safety check: Pass | MIT | |
| ToolJet Marketplace Plugin BuilderToolJet/ToolJet | 41k | — | ~2.1k | Automated safety check: Pass | AGPL-3.0 | |
| Step Partsearthtojake/text-to-cad | 18k | 1 repos | ~1.5k | Automated safety check: Pass | MIT | |
| API DesignerJeffallan/claude-skills | 12k | 2 repos | ~2k | Automated safety check: Pass | MIT | |
| OpenAPI to MCP Servermcp-use/mcp-use | 11k | — | ~5.2k | Automated safety check: Pass | Apache-2.0 | |
| Use Yaakmountain-loop/yaak | 19k | — | ~1.9k | Automated safety check: Pass | MIT |
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Questions about Kraken Openapi Skill
What does Kraken Openapi Skill do?
Operate Kraken public market APIs through UXC with a curated OpenAPI schema, market-first discovery, and explicit private-auth boundary notes. Kraken Openapi Skill is an agent skill from holon-run/uxc. Operate Kraken public market APIs through UXC with a curated OpenAPI schema, market-first discovery, and explicit private-auth boundary notes.
When should I use Kraken Openapi Skill?
Kraken Openapi Skill fits situations like: tasks that involve OpenAPI specifications.
How do I install Kraken Openapi Skill in Claude Code?
Run `npx skills add holon-run/uxc --skill kraken-openapi-skill -a claude-code`. Or copy the skill folder (skills/kraken-openapi-skill in holon-run/uxc) into .claude/skills/kraken-openapi-skill in your project. Claude Code loads it when a task matches its description.
How do I install Kraken Openapi Skill in Codex?
Run `npx skills add holon-run/uxc --skill kraken-openapi-skill -a codex`. Or copy the skill folder (skills/kraken-openapi-skill in holon-run/uxc) into .agents/skills/kraken-openapi-skill in your project. Codex loads it when a task matches its description.
Can I use Kraken Openapi Skill in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add holon-run/uxc --skill kraken-openapi-skill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/kraken-openapi-skill, .gemini/skills/kraken-openapi-skill, .github/skills/kraken-openapi-skill and .opencode/skills/kraken-openapi-skill in your project.
What does Kraken Openapi Skill need to run?
Going by SKILL.md and its folder, Kraken Openapi Skill needs a shell for the scripts in its folder. Our summary lists: A Bash shell.
Does Kraken Openapi Skill access the network?
SKILL.md names 2 domains. In commands or code: api.kraken.com; the agent is likely to contact it when it follows the instructions. As links in the text: docs.kraken.com. This is read from the text; nothing was executed.
Is Kraken Openapi Skill safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Kraken Openapi Skill use?
Kraken Openapi Skill is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Kraken Openapi Skill use?
About 662 tokens (SKILL.md is roughly 2.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.7k tokens, read only when the agent opens those files.
What are the alternatives to Kraken Openapi Skill?
Skills that share tags, products or a category with Kraken Openapi Skill: ToolJet Marketplace Plugin Builder (ToolJet/ToolJet, 41k stars), Step Parts (earthtojake/text-to-cad, 18k stars), API Designer (Jeffallan/claude-skills, 12k stars) and OpenAPI to MCP Server (mcp-use/mcp-use, 11k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Kraken Openapi Skill?
holon-run (a GitHub organization) maintains it in holon-run/uxc, which has 116 GitHub stars. The repository holds 62 skills in this directory. The repository was last updated on September 15, 2026.
Source: holon-run/uxc on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.