Agent skill

Mexc Openapi Skill

Operate MEXC Spot REST APIs through UXC with a curated OpenAPI schema, HMAC query signing, and separate public/signed workflow guardrails.

MITAuto-check passedBackend & APIs

Install Mexc Openapi Skill

skills CLI

$ npx skills add holon-run/uxc --skill mexc-openapi-skill -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install holon-run/uxc mexc-openapi-skill --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/holon-run/uxc.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/mexc-openapi-skill .claude/skills/mexc-openapi-skill && rm -rf skills-src

Use ~/.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/

Paste into Claude Code

Install the "mexc-openapi-skill" agent skill from https://github.com/holon-run/uxc/tree/main/skills/mexc-openapi-skill into .claude/skills/mexc-openapi-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mexc-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

$skill-installer install https://github.com/holon-run/uxc/tree/main/skills/mexc-openapi-skill

Type 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.

skills CLI

$ npx skills add holon-run/uxc --skill mexc-openapi-skill -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install holon-run/uxc mexc-openapi-skill --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/holon-run/uxc.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/mexc-openapi-skill .agents/skills/mexc-openapi-skill && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "mexc-openapi-skill" agent skill from https://github.com/holon-run/uxc/tree/main/skills/mexc-openapi-skill into .agents/skills/mexc-openapi-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mexc-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.

skills CLI

$ npx skills add holon-run/uxc --skill mexc-openapi-skill -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install holon-run/uxc mexc-openapi-skill --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/holon-run/uxc.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/mexc-openapi-skill .cursor/skills/mexc-openapi-skill && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "mexc-openapi-skill" agent skill from https://github.com/holon-run/uxc/tree/main/skills/mexc-openapi-skill into .cursor/skills/mexc-openapi-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mexc-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

$ gemini skills install https://github.com/holon-run/uxc.git --path skills/mexc-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.

skills CLI

$ npx skills add holon-run/uxc --skill mexc-openapi-skill -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install holon-run/uxc mexc-openapi-skill --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/holon-run/uxc.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/mexc-openapi-skill .gemini/skills/mexc-openapi-skill && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "mexc-openapi-skill" agent skill from https://github.com/holon-run/uxc/tree/main/skills/mexc-openapi-skill into .gemini/skills/mexc-openapi-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mexc-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.

GitHub CLI

$ gh skill install holon-run/uxc mexc-openapi-skill

Installs 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).

skills CLI

$ npx skills add holon-run/uxc --skill mexc-openapi-skill -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/holon-run/uxc.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/mexc-openapi-skill .github/skills/mexc-openapi-skill && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "mexc-openapi-skill" agent skill from https://github.com/holon-run/uxc/tree/main/skills/mexc-openapi-skill into .github/skills/mexc-openapi-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mexc-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.

skills CLI

$ npx skills add holon-run/uxc --skill mexc-openapi-skill -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install holon-run/uxc mexc-openapi-skill --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/holon-run/uxc.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/mexc-openapi-skill .opencode/skills/mexc-openapi-skill && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "mexc-openapi-skill" agent skill from https://github.com/holon-run/uxc/tree/main/skills/mexc-openapi-skill into .opencode/skills/mexc-openapi-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mexc-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: mexc-openapi-skill
GitHub stars: 116
Token cost: ~978 tokens
SKILL.md length: 290 words
Files: 5 (incl. scripts, references)
Skills in repo: 62
Repo updated: Sep 15, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Operate MEXC Spot REST APIs through UXC with a curated OpenAPI schema, HMAC query signing, and separate public/signed workflow guardrails.

Works in 4 steps: Use the fixed link command by default → Inspect operation help before execution → Prefer public 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.mexc.com; needs MEXC_API_KEY and MEXC_SECRET_KEY

What it does

Mexc Openapi Skill is an agent skill from holon-run/uxc. Operate MEXC Spot REST APIs through UXC with a curated OpenAPI schema, HMAC query signing, and separate public/signed workflow guardrails.

Its SKILL.md is about 980 tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including scripts and reference files (for example `agents/openai.yaml`, `references/mexc-spot.openapi.json` and `references/usage-patterns.md`).

It sits in Backend & APIs, covering OpenAPI specifications and REST APIs. 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
Tasks that involve REST APIs

Example prompts

“/mexc-openapi-skill”

Requirements

A Bash shell
A credential in MEXC_API_KEY
A credential in MEXC_SECRET_KEY

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

Use the fixed link command by default
Inspect operation help before execution
Prefer public reads first
Use signed reads before writes

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.mexc.com
Also links to:
- mexcdevelop.github.io
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
- MEXC_API_KEY
- MEXC_SECRET_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Mexc Openapi Skill loads about 978 tokens when it runs, and up to ~2.7k if it reads all its reference files. Until then it costs about 39 tokens; SKILL.md has 290 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~39
When it runs · the whole SKILL.md, loaded when a task matches: ~978
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~2.7k

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). 290 words, ~978 tokens.

Download SKILL.mdSave it as .claude/skills/mexc-openapi-skill/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.

name: mexc-openapi-skill
description: Operate MEXC Spot REST APIs through UXC with a curated OpenAPI schema, HMAC query signing, and separate public/signed workflow guardrails.

MEXC Spot API Skill

Use this skill to run MEXC Spot REST operations through uxc + OpenAPI.

Reuse the uxc skill for shared execution, auth, and error-handling guidance.

Prerequisites

uxc is installed and available in PATH.
Network access to https://api.mexc.com.
Access to the curated OpenAPI schema URL:
- https://raw.githubusercontent.com/holon-run/uxc/main/skills/mexc-openapi-skill/references/mexc-spot.openapi.json

Scope

This skill covers a curated MEXC Spot REST surface for:

public market reads
signed account reads
signed order create, cancel, and lookup flows

This skill does not cover:

futures APIs
broader platform product families

Authentication

Public market endpoints do not require credentials.

Signed Spot endpoints require:

api_key field for X-MEXC-APIKEY
secret_key field for HMAC SHA256 query signing

Create one credential:

bash

uxc auth credential set mexc-spot \
  --auth-type api_key \
  --field api_key=env:MEXC_API_KEY \
  --field secret_key=env:MEXC_SECRET_KEY

Add one signer binding:

bash

uxc auth binding add \
  --id mexc-spot \
  --host api.mexc.com \
  --path-prefix /api/v3 \
  --scheme https \
  --credential mexc-spot \
  --signer-json '{"kind":"hmac_query_v1","algorithm":"hmac_sha256","signing_field":"secret_key","key_field":"api_key","key_placement":"header","key_name":"X-MEXC-APIKEY","signature_param":"signature","signature_encoding":"hex","timestamp_param":"timestamp","timestamp_unit":"milliseconds","canonicalization":{"mode":"preserve_order"}}' \
  --priority 100

Validate the active mapping when auth looks wrong:

bash

uxc auth binding match https://api.mexc.com/api/v3/account

Core Workflow

Use the fixed link command by default:
- command -v mexc-openapi-cli
- If missing, create it: uxc link mexc-openapi-cli https://api.mexc.com --schema-url https://raw.githubusercontent.com/holon-run/uxc/main/skills/mexc-openapi-skill/references/mexc-spot.openapi.json
- mexc-openapi-cli -h
Inspect operation help before execution:
- mexc-openapi-cli get:/api/v3/ticker/price -h
- mexc-openapi-cli get:/api/v3/account -h
- mexc-openapi-cli post:/api/v3/order -h
Prefer public reads first:
- mexc-openapi-cli get:/api/v3/ticker/price symbol=BTCUSDT
- mexc-openapi-cli get:/api/v3/depth symbol=BTCUSDT limit=20
Use signed reads before writes:
- mexc-openapi-cli get:/api/v3/account recvWindow=5000
- mexc-openapi-cli get:/api/v3/openOrders symbol=BTCUSDT recvWindow=5000

Operation Groups

Public Market

get:/api/v3/ping
get:/api/v3/exchangeInfo
get:/api/v3/ticker/price
get:/api/v3/ticker/24hr
get:/api/v3/depth

Signed Reads

get:/api/v3/account
get:/api/v3/openOrders
get:/api/v3/order

Signed Writes

post:/api/v3/order
delete:/api/v3/order

Guardrails

Keep automation on the JSON output envelope; do not use --text.
Parse stable fields first: ok, kind, protocol, data, error.
Treat signed write operations as high-risk and require explicit confirmation before execution.
timestamp and signature are injected by the signer binding; users normally provide business parameters plus optional recvWindow.
Query exchangeInfo before placing orders so symbol filters and lot sizes are known.
mexc-openapi-cli <operation> ... is equivalent to uxc https://api.mexc.com --schema-url <mexc_spot_openapi_schema> <operation> ....

References

Usage patterns: references/usage-patterns.md
Curated OpenAPI schema: references/mexc-spot.openapi.json
Official MEXC Spot v3 docs: https://mexcdevelop.github.io/apidocs/spot_v3_en/

Files

SKILL.md and 4 other files (scripts, references) in skills/mexc-openapi-skill of holon-run/uxc.

SKILL.md
agents/openai.yaml
references/mexc-spot.openapi.json
references/usage-patterns.md
scripts/validate.sh

Open the folder on GitHubat commit 562d47c

Compare with similar skills

Mexc 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.

Mexc Openapi Skill compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Mexc Openapi Skill this skillholon-run/uxc	116	—	~978	Automated safety check: Pass	MIT	23 days ago
API DesignerJeffallan/claude-skills	12k	2 repos	~2k	Automated safety check: Pass	MIT	5 days ago
OpenAPI to MCP Servermcp-use/mcp-use	11k	—	~5.2k	Automated safety check: Pass	Apache-2.0	today
Use Yaakmountain-loop/yaak	19k	—	~1.9k	Automated safety check: Pass	MIT	yesterday
Old Coder API DesignAmazingAng/old-coder	749	1 repos	~3.4k	Automated safety check: Pass	MIT	1 mo ago
API CallerNVIDIA/SkillEvaluator	548	1 repos	~1.1k	Automated safety check: Pass	Apache-2.0	yesterday

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Questions about Mexc Openapi Skill

What does Mexc Openapi Skill do?

Operate MEXC Spot REST APIs through UXC with a curated OpenAPI schema, HMAC query signing, and separate public/signed workflow guardrails. Mexc Openapi Skill is an agent skill from holon-run/uxc. Operate MEXC Spot REST APIs through UXC with a curated OpenAPI schema, HMAC query signing, and separate public/signed workflow guardrails.

When should I use Mexc Openapi Skill?

Mexc Openapi Skill fits situations like: tasks that involve OpenAPI specifications; tasks that involve REST APIs.

How do I install Mexc Openapi Skill in Claude Code?

Run `npx skills add holon-run/uxc --skill mexc-openapi-skill -a claude-code`. Or copy the skill folder (skills/mexc-openapi-skill in holon-run/uxc) into .claude/skills/mexc-openapi-skill in your project. Claude Code loads it when a task matches its description.

How do I install Mexc Openapi Skill in Codex?

Run `npx skills add holon-run/uxc --skill mexc-openapi-skill -a codex`. Or copy the skill folder (skills/mexc-openapi-skill in holon-run/uxc) into .agents/skills/mexc-openapi-skill in your project. Codex loads it when a task matches its description.

Can I use Mexc 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 mexc-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/mexc-openapi-skill, .gemini/skills/mexc-openapi-skill, .github/skills/mexc-openapi-skill and .opencode/skills/mexc-openapi-skill in your project.

What does Mexc Openapi Skill need to run?

Going by SKILL.md and its folder, Mexc Openapi Skill needs a shell for the scripts in its folder and credentials named MEXC_API_KEY and MEXC_SECRET_KEY. Our summary lists: A Bash shell; A credential in MEXC_API_KEY; A credential in MEXC_SECRET_KEY.

Does Mexc Openapi Skill access the network?

SKILL.md names 2 domains. In commands or code: api.mexc.com; the agent is likely to contact it when it follows the instructions. As links in the text: mexcdevelop.github.io. This is read from the text; nothing was executed.

Is Mexc 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 Mexc Openapi Skill use?

Mexc 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 Mexc Openapi Skill use?

About 978 tokens (SKILL.md is roughly 3.9k 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 1.7k tokens, read only when the agent opens those files.

What are the alternatives to Mexc Openapi Skill?

Skills that share tags, products or a category with Mexc Openapi Skill: API Designer (Jeffallan/claude-skills, 12k stars), OpenAPI to MCP Server (mcp-use/mcp-use, 11k stars), Use Yaak (mountain-loop/yaak, 19k stars) and Old Coder API Design (AmazingAng/old-coder, 749 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Mexc 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.

Install Mexc Openapi Skill

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

MEXC Spot API Skill

Prerequisites

Scope

Authentication

Core Workflow

Operation Groups

Public Market

Signed Reads

Signed Writes

Guardrails

References

Files

Compare with similar skills

Similar skills

More from holon-run/uxc

Related

Questions about Mexc Openapi Skill