# API Reference - [PAI Generator](https://docs.pending.ai/api-reference/pai-generator.md): Access Pending AI's high-throughput Molecule Generator models - [Generative Models](https://docs.pending.ai/api-reference/pai-generator/generative-models.md): Explore SoTA Deep-Learning models for exploring novel chemical space - [Sampling Structures](https://docs.pending.ai/api-reference/pai-generator/sampling-structures.md): Speed up Hit Identification with rapid molecule sampling - [PAI Retro](https://docs.pending.ai/api-reference/pai-retro.md): Access Pending AI's high-throughput Retrosynthesis engines - [Retrosynthesis Engines](https://docs.pending.ai/api-reference/pai-retro/retrosynthesis-engines.md): Explore the various engines available for retrosynthesis - [Building Block Libraries](https://docs.pending.ai/api-reference/pai-retro/building-block-libraries.md): Explore the various libraries available for retrosynthesis - [Synthesis Jobs](https://docs.pending.ai/api-reference/pai-retro/synthesis-jobs.md): Submit target molecules for retrosynthesis and explore novel synthetic routes - [Batch Screening](https://docs.pending.ai/api-reference/pai-retro/batch-screening.md): Screen large batches of molecules using our high-throughput retrosynthesis --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.pending.ai/api-reference.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.