Agent skill
web-api-tester
Test API endpoints for correctness, edge cases, auth handling, and OpenAPI contract compliance.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/web-api-tester
Metadata
Additional technical details for this skill
- stage
- 7-api-testing
- category
- web-builder
- pipeline
- web-builder
SKILL.md
Web API Tester
Objective
Run endpoint-level testing against openapi.yaml and produce API quality
coverage artifacts.
Required Workflow
- Read
openapi.yamlfromweb-backend-builder. - Build API collections for Bruno or Hoppscotch.
- Optionally generate automated tests in Vitest, Jest, or pytest.
- For each endpoint test:
- happy path
- edge cases (missing fields, invalid types, max payloads)
- auth failures (
401,403) - rate limiting behavior
- Validate response contracts against OpenAPI using Zod (TS) or Pydantic (Python).
- Add frontend-backend contract tests for API call compatibility.
- Generate endpoint and edge-case coverage percentages.
- Output
api-test-report.json.
Execution
python skills/web-api-tester/scripts/api_tester.py --input <workspace> --output <out.json> --format json
References
references/tools.md
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