Head-to-head · API Linting Tools
Zally vs AEP OpenAPI Linter
Zally leads on 0 checks, AEP OpenAPI Linter on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreZally · 7.9/10
- Free planboth
- Most featuresZally · 2 of 5
Zally scores higher on our rubric for api linting tools: 7.9 against 7.4 out of 10; our editors rank them #2 and #8.
Zally is the better fit for teams linting OpenAPI 2 or 3 with a web UI. AEP OpenAPI Linter is the better fit for teams using AEPs, Spectral and VS Code.
- Zally fits best
Teams linting OpenAPI 2 or 3 with a web UI
- AEP OpenAPI Linter fits best
Teams using AEPs, Spectral and VS Code
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Side by side
| Feature | Zally 7.9/10 Visit ↗ | AEP OpenAPI Linter 7.4/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 7.9 | 7.4 |
| Ranking | #2 in API Linting Tools | #8 in API Linting Tools |
| Best for | Teams linting OpenAPI 2 or 3 with a web UI | Teams using AEPs, Spectral and VS Code |
| Pricing model | Free | Free |
| Starting price | Open source | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Self-hosted | Self-hosted |
| Platforms | Web, Windows, Linux | Windows, macOS, Linux |
| Support | Community | Docs |
| Integrations | 1 integrations | 3 integrations |
| Built for | Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features Zally 2/5 · AEP OpenAPI Linter 1/5 | ||
| OpenAPI linting | ✓ | ✓ |
| AsyncAPI linting | — | — |
| GraphQL schema linting | — | — |
| Custom rules | ✓ (best) | Not checked yet |
| CI integration | Not checked yet | Not checked yet |
| Our review | ||
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| Cons |
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| Our verdict | Zally is an open-source API quality tool for API designers and developers who want consistent OpenAPI specifications and feedback during development. It lints OpenAPI 2 and 3 against configurable rules, including Zalando’s RESTful… Read the review → |
AEP OpenAPI Linter is an open-source Spectral ruleset for developers and teams who want to check OpenAPI documents against API Enhancement Proposals (AEPs). It is distributed as an npm package and can also reference its ruleset directly… Read the review → |
Strengths and trade-offs
Zally — where it wins
- Lints OpenAPI 2 and 3 through REST API, CLI, or web interface
- Lets teams enable or disable server-side rules and ignore rules per API
- Supports custom checks in Kotlin
Where it doesn't
- Does not lint AsyncAPI or GraphQL schemas
- Documented integration is limited to an unofficial Maven plugin
- Custom checks require implementing them in Kotlin
AEP OpenAPI Linter — where it wins
- Checks OpenAPI documents for conformance to AEPs
- Rules cover AEP methods and API design patterns
- Displays findings in the Spectral VS Code extension
Where it doesn't
- Focused on AEP conformance rather than broad API linting
- Works with OpenAPI, not AsyncAPI or GraphQL schemas
- Requires Spectral configuration and tooling
- Zally7.9/10 · Open source
A focused OpenAPI linter with REST API, CLI, web UI, and configurable rules.
Visit ZallyFull verdict → - AEP OpenAPI Linter7.4/10 · Free plan
A focused Spectral ruleset for teams validating OpenAPI documents against AEPs.
View AEP LinterFull verdict →
Zally vs AEP OpenAPI Linter: questions
Which is better for API linting tools, Zally or AEP OpenAPI Linter?
Zally scores higher on our rubric for api linting tools: 7.9 against 7.4 out of 10; our editors rank them #2 and #8.
How do Zally and AEP OpenAPI Linter compare?
All 5 checks we put side by side come out level: neither leads on any.
Do Zally and AEP OpenAPI Linter have a free plan?
Zally: Yes. AEP OpenAPI Linter: Yes.
More comparisons
- Spectral vs Zally
- Spectral vs AEP OpenAPI Linter
- Zally vs APIMatic
- Zally vs vacuum
- Zally vs IBM OpenAPI Validator
- Zally vs OpenLint
- Zally vs Thymian
- APIMatic vs AEP OpenAPI Linter
All API linting tools comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
Last updated · How we research and update