Advanced OpenAPI Support

Advanced OpenAPI Integration

Tigrister delivers the most comprehensive OpenAPI implementation in any API client - designed for professionals who demand more.

Full Specification Support

• OpenAPI 3.2.x - Complete support
• OpenAPI 3.1.x - Full JSON Schema 2020-12 compatibility
• OpenAPI 3.0.x - Complete support
• Swagger 2.0 - Auto-converts to OpenAPI 3.0.3 on import
• Cross-version conversion - Convert between 3.0 ↔ 3.1 with intelligent warnings

Visual Spec Designer

Create and edit OpenAPI specs without writing YAML:

• API Info - Title, version, description, contact, license
• Servers - Define server URLs with variables
• Paths & Operations - Full CRUD with inline schema builder
• Schemas - Visual composition editor (allOf, oneOf, anyOf, not)
• Security Schemes - OAuth2, API Key, HTTP Auth, OpenID Connect
• Webhooks & Callbacks - Complete support for async APIs

Interactive Try-It-Out

Test any endpoint directly from the spec:

• Server selection with variable input
• Parameter builder with schema validation
• Request body editor for all content types
• Authorization UI with OAuth2 flow support
• Response display with timing info

Parameter Serialization (RFC 6570)

Full support for all OpenAPI parameter styles:

Style	Location	Explode	Example
simple	path, header	✓	/users/1,2,3
matrix	path	✓	/users;id=1;id=2
label	path	✓	/users/.1.2.3
form	query, cookie	✓	?id=1&id=2
deepObject	query	✓	?user[name]=John
spaceDelimited	query	✓	?id=1%202%203
pipeDelimited	query	✓	`?id=1

Security Scheme Support

• API Key - Query, header, or cookie
• HTTP - Basic, Bearer, Digest with format support
• OAuth 2.0 - All flows (implicit, password, clientCredentials, authorizationCode)
• OpenID Connect - With discovery URL

Bidirectional Sync

Seamless integration with your Tigrister project:

• Import - Convert spec to project endpoints
• Export - Generate spec from your collection
• Change Detection - Track spec vs project differences
• Conflict Resolution - Intelligent merge strategies
• Metadata Preservation - Round-trip without data loss

Contract Validation

Validate responses against your spec:

• Status code verification
• Content-Type compliance
• Schema validation with composition support
• Header verification
• Custom schema validation mode

Advanced Schema Features

• Composition - allOf, oneOf, anyOf, not with discriminator
• Circular references - Detected and handled
• External $ref - Resolve remote schemas via HTTP
• Type arrays - OpenAPI 3.1 ["string", "null"] support
• Example generation - Auto-generate from schema

Import & Export

• YAML and JSON format support
• Format conversion - YAML ↔ JSON
• Version conversion - 3.0 ↔ 3.1 with warnings
• Swagger 2.0 - Transparent upgrade on import

Why It Matters

Tigrister gives you a complete API design and testing platform - visual editing, live testing, contract validation, and bidirectional sync all in one native app.