Question: Is there an API that offers easy debugging tools and observability with logs for document generation?

If you need an API with built-in debugging tools and observability with logs for generating documents, Doppio is well worth a look. Doppio is an API for generating high-quality PDF documents and PNG screenshots from HTML, with built-in debugging through logs, infinite scalability and tools for fast document generation. It works with many technology stacks and has features like easy setup, webhooks and S3 storage with presigned URLs. The API is designed for responsive design and graphical rendering, so it's flexible and easy to use.

Another tool worth a look is Autonoma, an AI platform for automating tasks for developers, including those that pertain to documentation and logging. It lets you define tasks in natural language and connect to GitHub repositories to process codebases. Autonoma can automate the generation of flow diagrams, tests, docstrings and logs, freeing developers to focus on product development instead of drudgery.

If you're more interested in logging and analytics, LLM Report offers real-time insights and detailed reports to help you optimize usage and costs. It offers features like log and prompt optimization, cost per user analysis, and unlimited logs in the Pro plan. It can be used by developers for documentation, feedback mechanisms and changelogs, and can be a useful tool for optimizing application performance.

Last, Langtail offers a collection of tools for debugging, testing and deploying Large Language Model (LLM) prompts. It offers features like fine-tuning prompts with variables, running tests to avoid unexpected behavior, and monitoring production performance with detailed logging. Langtail also offers a no-code playground for writing and running prompts, which can be useful for developing and testing AI apps.