# Sparkient > Sub-100ms Decision Intelligence API — smarter than rules, cheaper than LLMs. Sparkient is a decision intelligence API that delivers structured decisions in under 100 milliseconds. It compiles LLM intelligence into fast ONNX models at training time, so you get near-LLM quality at near-zero runtime cost. ## Docs - [Welcome](https://docs.sparkient.ai/docs/): Overview of Sparkient and the decision pipeline - [Quickstart](https://docs.sparkient.ai/docs/quickstart/): Get your API key and make your first decision - [Authentication](https://docs.sparkient.ai/docs/authentication/): API keys and Firebase JWT auth - [Decision Types](https://docs.sparkient.ai/docs/concepts/decision-types/): Create and configure decision types - [Pipeline](https://docs.sparkient.ai/docs/concepts/pipeline/): How the 3-stage pipeline works - [Rules](https://docs.sparkient.ai/docs/concepts/rules/): CEL rules for instant decisions - [Training](https://docs.sparkient.ai/docs/concepts/training/): Train ML models from examples - [Edge SDK](https://docs.sparkient.ai/docs/edge/getting-started/): Run decisions offline - [API Reference](https://docs.sparkient.ai/docs/api-reference/): Full API reference ## API - Base URL: `https://api.sparkient.ai` - OpenAPI Spec: `https://docs.sparkient.ai/openapi.json` - Auth: Bearer token (API key or Firebase JWT) ## Optional - [Full docs for LLMs](https://docs.sparkient.ai/llms-full.txt)