# OpenAPI Standards A Year of Innovation with Overlays > [! note]- > The content of this page is generated by audio/video transcription and text transformation from the content and links of this source. Source: [https://fosdem.org/2025/schedule/event/fosdem-2025-5233-the-openapi-standards-landscape-a-year-of-innovation/](https://fosdem.org/2025/schedule/event/fosdem-2025-5233-the-openapi-standards-landscape-a-year-of-innovation/) <video src="https://video.fosdem.org/2025/k4201/fosdem-2025-5233-the-openapi-standards-landscape-a-year-of-innovation.av1.webm" controls></video> ## Summary & Highlights: The session at FOSDEM 2025 titled 'The OpenAPI Standards Landscape: A Year of Innovation' focuses on recent advancements in the OpenAPI standards, specifically the introduction of Overlays and Arazzo. These tools aim to enhance the flexibility and functionality of API descriptions, addressing common issues and requests from the API community. **Introduction to OpenAPI Innovations** OpenAPI has traditionally been a singular standard for describing APIs, but recent developments have introduced new standards like Overlays and Arazzo. Overlays allow users to make iterative changes to OpenAPI files, while Arazzo enables the orchestration of API call sequences. These innovations respond to the evolving needs of API developers, offering more dynamic and adaptable solutions. **Understanding Overlays** Overlays are designed to improve OpenAPI descriptions by allowing users to add, update, or remove elements without altering the original file. This is particularly useful for enhancing documentation, localizing content, or tailoring API descriptions for specific tools or environments. Overlays provide a structured approach to managing API changes, ensuring consistency and repeatability across different versions. **Exploring Arazzo** Arazzo, meaning tapestry in Italian, weaves together multiple API calls into cohesive workflows. This tool is valuable for integration testing and creating comprehensive API documentation. It supports complex API operations by allowing inputs and outputs to be shared across calls, ensuring seamless execution and testing of multi-step processes. **Practical Applications and Future Outlook** The session emphasizes practical applications of these tools in modern API workflows, highlighting their potential to improve API documentation, testing, and integration. As the API landscape continues to evolve, these standards are expected to play a crucial role in enhancing API experiences for both developers and consumers. The session encourages attendees to engage with the OpenAPI community and contribute to ongoing developments. ## Importance for an eco-social transformation The advancements in OpenAPI standards, particularly Overlays and Arazzo, are significant for eco-social transformation as they promote more efficient and transparent API workflows. These tools can aid eco-social designers by providing robust frameworks for creating and managing APIs that support sustainable and ethical digital solutions. Challenges include ensuring widespread adoption and integration with existing systems, as well as addressing potential privacy and security concerns. OpenAPI's community-driven approach encourages collaboration and innovation, aligning with the values of open design and inclusive technology development. ## Links [Slides](https://fosdem.org/2025/schedule/event/fosdem-2025-5233-the-openapi-standards-landscape-a-year-of-innovation/slides) [Video recording (AV1/WebM)](https://video.fosdem.org/2025/k4201/fosdem-2025-5233-the-openapi-standards-landscape-a-year-of-innovation.av1.webm) [Video recording (MP4)](https://video.fosdem.org/2025/k4201/fosdem-2025-5233-the-openapi-standards-landscape-a-year-of-innovation.av1.mp4) [Video recording subtitle file (VTT)](https://video.fosdem.org/2025/k4201/fosdem-2025-5233-the-openapi-standards-landscape-a-year-of-innovation.vtt) [Chat room (web)](https://fosdem.org/2025/schedule/event/fosdem-2025-5233-the-openapi-standards-landscape-a-year-of-innovation/chat/web) [Chat room (app)](https://fosdem.org/2025/schedule/event/fosdem-2025-5233-the-openapi-standards-landscape-a-year-of-innovation/chat/app)