API Linter

Catch errors before
your users do.

Automatic validation for 7 API formats. Catch spec errors before they hit production.

app.api-portal.io/linter/results
1 openapi: "3.0.3"
2 info:
3   title: "Payment API"
4 paths: !
5   /payments: x
6     get:
7       responses: i
Findings (3)
Error
Missing operationId
Zeile 5 · GET /payments
Warning
No description
Zeile 4 · /payments
Info
Missing examples
Zeile 7 · responses
7 formats
supported
<2s
validation
0
broken APIs
in production

// Features

What the API Linter delivers.

Multi-Format Validation

Validate OpenAPI, AsyncAPI, RAML, SOAP, GraphQL, Swagger, and Arazzo specs in a single pass.

Quality Score

Automatic quality score for every API spec. Track quality across all versions over time.

CI/CD Integration

Plug the linter into your CI/CD pipeline. Block broken specs automatically before deployment.

// Lint Results

Every error. Instantly explained.

The linter analyzes your API specs in three steps: parse, validate, report. Every issue comes with a precise line reference and a clear error message — so you know exactly what to fix.

  • Precise line references
  • Clear error descriptions
  • Severity classification
  • Auto-fix suggestions
payment-api.yaml

$ openapi: "3.0.3"

$ info:

$ title: "Payment API"

$ paths:

$ /payments:

$ get:

$ responses:

Zeile 5: Missing required field 'operationId' in GET /payments
Zeile 4: Path '/payments' has no description
Zeile 7: Consider adding response examples
Naming Conventions
12 Regeln

camelCase fuer Properties

Schema Validation
8 Regeln

Required Fields pruefen

Security Checks
6 Regeln

Auth auf allen Endpoints

Best Practices
15 Regeln

Response Examples vorhanden

// Rule Categories

Rules that match your standards.

Configure lint rules to match your team's standards. From naming conventions to schema validation to security checks — customize every category and ensure compliance.

  • Enforce naming conventions
  • Automate schema validation
  • Integrate security checks
  • Ensure best practices
“The linter helped us enforce our API standards. Since we rolled it out, we've had zero broken specs in production.”
0 broken specs

// Explore more

Related Features.

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