T-shirt Swagger Developer - API Design & Documentation

Design, build, and document RESTful APIs with this Swagger-themed design, celebrating the powerful OpenAPI Specification ecosystem for creating human and machine-readable API interfaces. This design is for API developers, architects, and technical writers who leverage Swagger UI for interactive documentation, Swagger Codegen for client SDKs, and OpenAPI specs as the single source of truth. Whether you're writing YAML definitions, automating API testing, or ensuring consistent API governance across teams, represent the tools that make API development standardized, collaborative, and efficient across the entire lifecycle.