scanapi
ScanAPI is a Python library that automatically tests REST APIs and generates live documentation from YAML/JSON specifications. Users define endpoints and assertions without extensive coding, and receive an HTML report showing test results and API behavior.
Key facts
Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.
| Field | Value |
|---|---|
| Repository | scanapi/scanapi |
| Owner | scanapi |
| Primary language | Python |
| License | MIT — OSI-approved |
| Stars | 1.6k |
| Forks | 124 |
| Open issues | 38 |
| Latest release | v2.13.2 (2026-05-18) |
| Last updated | 2026-07-01 |
| Source | https://github.com/scanapi/scanapi |
What scanapi is
ScanAPI parses YAML/JSON API specifications to execute HTTP requests against endpoints, validates responses against defined assertions (using template expressions), and generates an interactive HTML report. Built in Python with dependencies on requests, pytest, and markup libraries; distributed via PyPI.
Get the scanapi source
Clone the repository and explore it locally.
git clone https://github.com/scanapi/scanapi.gitcd scanapi# follow the project's README for install & configurationNeed it deployed, integrated, or customized instead? DEV.co ships production installs.
Best use cases
Implementation considerations
- Define API specification in YAML or JSON; ensure endpoint paths, methods, and expected response assertions are accurate before running tests.
- ScanAPI requires pip/pipx installation; use pipx if dependency isolation is critical to avoid conflicts with project dependencies.
- Template expressions in assertions use `${{ response.status_code == 200 }}` syntax; familiarize team with assertion syntax and available response properties.
- Generated HTML reports are static files; serve or archive them as needed for CI/CD pipelines and audit trails.
- Install with pinned dependencies (MarkupSafe, pytest-freezegun, requests-mock) as noted; monitor for updates and security advisories.
When to avoid it — and what to weigh
- Complex Test Logic — If your test cases require advanced conditional branching, custom algorithms, or state management beyond template expressions, ScanAPI's assertion syntax may be limiting.
- Non-REST Protocols — ScanAPI is REST-API focused; it is not suitable for gRPC, GraphQL, SOAP, or other non-HTTP API testing without significant workarounds.
- Real-time Load Testing — ScanAPI is designed for integration testing, not performance or load testing; use specialized tools like Apache JMeter or Locust for those scenarios.
- Existing Postman/Swagger Ecosystems — If your team is already invested in Postman collections or OpenAPI tooling, migrating to ScanAPI may introduce friction without clear value.
License & commercial use
Licensed under MIT License, which is a permissive OSI-approved license allowing commercial use, modification, and distribution with attribution.
MIT License permits commercial use without restrictions, provided the license and copyright notice are included. No commercial support, warranty, or liability clauses are implied by the license itself; requires review of project's commercial support policy if needed.
DEV.co evaluation signals
Editorial assessment — not user reviews. Directional, with an explicit confidence level.
| Signal | Assessment |
|---|---|
| Maintenance | Active |
| Documentation | Strong |
| License clarity | Clear |
| Deployment complexity | Low |
| DEV.co fit | Strong |
| Assessment confidence | High |
ScanAPI executes HTTP requests to APIs and requires credentials (headers, auth tokens) in specifications or environment variables. Ensure specification files and generated reports do not expose sensitive data. Validate SSL/TLS when calling external APIs. Dependencies (requests, pytest, MarkupSafe) are maintained; keep them updated. No claims can be made about ScanAPI's internal security posture without independent audit.
Alternatives to consider
Postman/Insomnia
Commercial/freemium API testing and documentation tools with GUI, team collaboration, and extensive integrations; higher overhead but more features.
pytest + requests
Manual Python test suite using standard pytest and requests libraries; more control and flexibility but requires more coding and maintenance.
OpenAPI/Swagger Tools
Industry-standard API specification format with rich ecosystem (code gen, validation, documentation); better for complex API schemas but steeper learning curve.
Build on scanapi with DEV.co software developers
Install ScanAPI via pip and start defining your first integration tests in minutes. Visit scanapi.dev for tutorials and examples.
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scanapi FAQ
Can I use ScanAPI in CI/CD pipelines?
What authentication methods are supported?
Does ScanAPI support GraphQL or SOAP?
Can I reuse specifications in multiple environments?
Software developers & web developers for hire
Adopting scanapi is usually one piece of a larger software development effort. As a software development agency, DEV.co provides software development services and web development expertise — pairing senior software developers and web developers with your team to design, build, and operate open-source testing software in production.
Ready to automate your API testing?
Install ScanAPI via pip and start defining your first integration tests in minutes. Visit scanapi.dev for tutorials and examples.