api-testing

api-testing is a skill for Claude Code, Codex from fishzjp/qa-skills. It costs 102 tokens per session (3,524 once invoked), scanned A, original, MIT.

API testing checks a software service directly through its endpoints, using OpenAPI or Swagger documentation or automated test cases. It can produce and run scripts that test requests and responses.

In plain words
What is it for?
Use it to create and run automated API tests, including checks for access control, repeated operations, concurrent requests, and expected errors.
Why use it?
It helps find problems in parameters, limits, authentication, duplicate requests, concurrent writes, error responses, and data consistency without testing the website's screens.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to create and run automated API tests, including checks for access control, repeated operations, concurrent requests, and expected errors.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/fishzjp/qa-skills/api-testing
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add fishzjp/qa-skills --skill api-testing
Clone the repo
git clone --depth 1 https://github.com/fishzjp/qa-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for api-testing

README.md
[![agentmods](https://agentmods.dev/badge/skills/fishzjp/qa-skills/api-testing/github.svg)](https://agentmods.dev/skills/fishzjp/qa-skills/api-testing)
Your own site
<a href="https://agentmods.dev/skills/fishzjp/qa-skills/api-testing"><img src="https://agentmods.dev/badge/skills/fishzjp/qa-skills/api-testing/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for api-testing

Your own site · 80×15
<a href="https://agentmods.dev/skills/fishzjp/qa-skills/api-testing"><img src="https://agentmods.dev/badge/skills/fishzjp/qa-skills/api-testing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,524 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 36
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00102 $0.03524
Opus 5.5 $0.00041 $0.01410
Sonnet 5.5 $0.00020 $0.00705
Haiku 4.5 $0.00010 $0.00352

Measured 28d ago against content hash 0c287b1b71c0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

api-testing scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 28d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/api-testing/SKILL.md · 168 lines

How it starts

The opening of the file, as written. The whole thing — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.

API 测试(api-testing)

接口级测试——E2E 之外的另一条执行路径。

  • 输入:API 文档(OpenAPI/Swagger)、用例 Schema 中 execution_model 可自动化的接口用例、被测环境信息(base URL、账号/Token);性能轴(类型矩阵轴 1)移交包 专项移交_性能_*.yaml
  • 输出(落盘):API 测试脚本(pytest + requests,或项目既定技术栈)+ 执行分报告 测试报告_api_{日期}.md(命名按 ../core/report-template.md 头注,条目按其 §3 对齐;qa 断点判据按此文件名核收);性能承接时另产 k6 压测脚本与压测报告(references/k6-conventions.md)
  • 边界:Web UI 流程 → automated-e2e-testing;接口手动用例设计 → test-case-writing

When to Use

  • 给定 OpenAPI/Swagger 文档,需要产出并运行接口自动化测试
  • 从用例 Schema 中筛出接口级可自动化用例,转换为 API 脚本执行
  • 需要覆盖鉴权/越权、幂等、并发写、错误响应等接口层专项
  • 给定性能移交包或接口清单,需要生成并运行压测脚本(k6)——按 references/k6-conventions.md

When NOT to Use

  • Web UI 交互流程(点击 / 页面状态)→ automated-e2e-testing
  • 编写接口的手动测试用例 → test-case-writing
  • 端到端流水线 → qa 编排
  • 独立压测环境搭建与容量保障 → 运维/专项协作(agent 侧压测承接见 references/k6-conventions.md;外部执行场景按 test-strategy 的移交包)
  • Mock Server 搭建 → 开发协作事项,不在本 skill 范围

脚手架(默认 pytest + requests,可替换为项目既定栈)

api-tests/
├── conftest.py            # fixture:base_url、会话/Token、环境配置(环境变量注入,可由 .env 加载,不硬编码)
├── common/
│   └── client.py          # 统一请求封装:日志、超时、鉴权头、断言辅助
├── test_{模块}_{接口}.py   # 一个接口一个文件,test 名沿用 TC 编号
└── requirements.txt
# common/client.py —— 统一请求封装(requests.Session 不支持 base_url,必须显式拼接)
import requests

class Client:
    def __init__(self, base_url: str, token: str):
        self.base_url = base_url.rstrip("/")
        self.s = requests.Session()
        self.s.headers.update({"Authorization": f"Bearer {token}"})

    def request(self, method: str, path: str, **kwargs):
        url = f"{self.base_url}/{path.lstrip('/')}"
        kwargs.setdefault("timeout", 10)
        return self.s.request(method, url, **kwargs)

    def get(self, path, **kw):  return self.request("GET", path, **kw)
    def post(self, path, **kw): return self.request("POST", path, **kw)
    # put / delete / patch 同理扩展

def login(user: str, password: str) -> str:
    """按项目实际登录接口实现(如 POST /login 换 token)——占位,勿直接照抄"""
    raise NotImplementedError("按项目登录接口实现")

Read the full file on GitHub · 168 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 28d ago Changed 0c287b1b71c0
  2. 1mo ago Changed · -15 tokens per session bf3ce6c801f4
  3. 1mo ago Changed · +31 lines · +22 tokens per session 650b6cd52f03
  4. 1mo ago First seen · 137 lines · 95 tokens per session scan A f5305844cd5f

Subscribe to this mod's changes

api-testing is a skill published in the GitHub repository fishzjp/qa-skills (48 stars, last pushed 9d ago), licensed MIT. It adds 102 tokens to every session and 3,524 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

qa-expert

Expert-level quality assurance, testing strategies, automation, and QA processes. Use when the user mentions testing, test automation, quality assurance, or Selenium, or when the task involves Testing Types, QA Processes, Test Strategy, or Defect Management.

personamanagmentlayer/pcl · 53 tokens

postman-newman

When the user wants to design, organize, or run Postman collections — locally, in CI via Newman, or shared across a team. Use when the user mentions "Postman," "Postman collection," "Newman," "newman run," "pm.test," "pre-request script," "test script," "Postman environment," "collection variables," "Postman monitor,"…

aks-builds/quality-skills · 127 tokens

supertest

When the user wants to design, implement, debug, or scale supertest-based API tests in Node.js. Use when the user mentions "supertest," "request(app)," "Express test," "Koa test," "Fastify test," "Jest + supertest," "Mocha + supertest," or "in-process HTTP testing." For Java API testing see rest-assured. For Python…

aks-builds/quality-skills · 106 tokens

wiremock

When the user wants to virtualize HTTP services for testing — mocking downstream dependencies, simulating slow/error responses, recording-and-replay, or building a stub server for development. Use when the user mentions "WireMock," "stubFor," "mappings," "WireMockServer," "WireMock standalone," "request matching,"…

aks-builds/quality-skills · 121 tokens

grpc-testing

When the user wants to design, implement, debug, or load-test gRPC services. Use when the user mentions "gRPC testing," "protobuf," ".proto," "grpcurl," "ghz," "buf," "server reflection," "grpc-go test," "grpc Java test," "grpc Python test," "interceptors," "streaming RPC," or "TLS for gRPC." For REST API testing see…

aks-builds/quality-skills · 120 tokens

test-case-writer

Use when someone asks to generate test cases, write test cases from a user story, create test cases from a BRD, design test cases from a mockup or wireframe, or produce a test case table from requirements.

ukkuru/testmetry-skills · 50 tokens