Agent skill

API Client

by aiskillstore in aiskillstore/marketplace

A skill your agent uses when setting up API clients - TanStack Query, Axios, JWT token management, error handling, or response parsing.

No licenceAuto-check: notesBackend & APIs

Install API Client

skills CLI
$ npx skills add aiskillstore/marketplace --skill api-client -a claude-code

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

GitHub CLI
$ gh skill install aiskillstore/marketplace api-client --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/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/awais68/api-client .claude/skills/api-client && 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/

Facts

Skill name
api-client
GitHub stars
430
Used in
1 other repo
Token cost
~5.1k tokens
SKILL.md length
507 words
Files
2
Skills in repo
1,108
Repo updated
First seen
Licence
None found

At a glance

A skill your agent uses when setting up API clients - TanStack Query, Axios, JWT token management, error handling, or response parsing.

  • Works in 4 steps: Setup: TanStack Query Configuration → JWT: Interceptors Auto-Attach → Errors: Global Handler → …
  • Setting up API clients - TanStack Query
  • SKILL.md covers Overview, When This Skill Applies, Core Rules and Output Requirements, plus 6 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

API Client is an agent skill from aiskillstore/marketplace. Use when setting up API clients - TanStack Query, Axios, JWT token management, error handling, or response parsing. NOT when plain fetch calls, non-API data handling, or unrelated UI logic. Triggers: "API client", "data fetching", "JWT token", "error handling", "paginated list", "TanStack Query".

Its SKILL.md is about 5.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `skill-report.json`).

It sits in Backend & APIs, covering Authentication and Error handling. It works with TanStack and Zod. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.

When your agent uses it

  • Setting up API clients - TanStack Query
  • JWT token management
  • Response parsing

Example prompts

  • “API client”
  • “data fetching”
  • “JWT token”
  • “/api-client”

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Setup: TanStack Query Configuration
  2. JWT: Interceptors Auto-Attach
  3. Errors: Global Handler
  4. Parsing: Typed Responses, Optimistic Updates

What it can do on your machine

Read from SKILL.md and the folder at commit ad8daf7. 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

    No scripts in the folder and no shell commands in SKILL.md (its code samples are typescript and bash).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • tanstack.com
    • axios-http.com
    • zod.dev

    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

API Client loads about 5.1k tokens when it runs. Until then it costs about 77 tokens; SKILL.md has 507 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~77
When it runs · the whole SKILL.md, loaded when a task matches
~5.1k

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: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NoteMentions a .env fileSKILL.md:729
    # .env.local

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); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 507 words (~5,132 tokens).

“Expert guidance for API client implementation using TanStack Query/Axios, including JWT token attachment via interceptors, global error handling with toasts, type-safe response parsing with Zod, and offline detection for robust data fetching.”

— opening of SKILL.md by aiskillstore
name
api-client

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file in skills/awais68/api-client of aiskillstore/marketplace.

  • SKILL.md
  • skill-report.json

Open the folder on GitHubat commit ad8daf7

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in aiskillstore/marketplace, which our catalogue first saw on October 7, 2026.

Compare with similar skills

API Client 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.

API Client compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
API Client this skillaiskillstore/marketplace4301 repos~5.1kAutomated safety check: NotesNone
Node Backend Development Guidelinesdiet103/claude-code-infrastructure-showcase10k2 repos~2kAutomated safety check: PassMIT
API Route Patternsbybren-llc/safe-agentic-workflow421—~1.6kAutomated safety check: PassMIT
API Endpointopenathleteorg/openathlete100—~682Automated safety check: PassAGPL-3.0
Azure APIM Policy Authoringthomast1906/github-copilot-agent-skills202—~1.5kAutomated safety check: PassMIT
Tanstack Start Best PracticesDeckardGer/tanstack-agent-skills222—~1kAutomated safety check: PassMIT

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Works with

Categories

Questions about API Client

What does API Client do?

A skill your agent uses when setting up API clients - TanStack Query, Axios, JWT token management, error handling, or response parsing. API Client is an agent skill from aiskillstore/marketplace. Use when setting up API clients - TanStack Query, Axios, JWT token management, error handling, or response parsing.

When should I use API Client?

API Client fits situations like: setting up API clients - TanStack Query; JWT token management; response parsing.

How do I install API Client in Claude Code?

Run `npx skills add aiskillstore/marketplace --skill api-client -a claude-code`. Or copy the skill folder (skills/awais68/api-client in aiskillstore/marketplace) into .claude/skills/api-client in your project. Claude Code loads it when a task matches its description.

How do I install API Client in Codex?

Run `npx skills add aiskillstore/marketplace --skill api-client -a codex`. Or copy the skill folder (skills/awais68/api-client in aiskillstore/marketplace) into .agents/skills/api-client in your project. Codex loads it when a task matches its description.

Can I use API Client 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 aiskillstore/marketplace --skill api-client -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/api-client, .gemini/skills/api-client, .github/skills/api-client and .opencode/skills/api-client in your project.

What does API Client need to run?

SKILL.md names no scripts, command-line tools or credentials: API Client is instructions for the agent only.

Does API Client access the network?

SKILL.md names 3 domains. As links in the text: tanstack.com, axios-http.com and zod.dev. This is read from the text; nothing was executed.

Is API Client safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does API Client use?

No licence was found for API Client or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does API Client use?

About 5.1k tokens (SKILL.md is roughly 21k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to API Client?

Skills that share tags, products or a category with API Client: Node Backend Development Guidelines (diet103/claude-code-infrastructure-showcase, 10k stars), API Route Patterns (bybren-llc/safe-agentic-workflow, 421 stars), API Endpoint (openathleteorg/openathlete, 100 stars) and Azure APIM Policy Authoring (thomast1906/github-copilot-agent-skills, 202 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains API Client?

aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,108 skills in this directory. The repository was last updated on October 7, 2026.

Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.