Indexical

Indexical is an AI-powered developer tool company focused on helping engineers navigate and debug distributed microservice architectures. Founded in 2022 and backed by Y Combinator (Winter 2023 batch), the company builds tools that continuously analyze codebases to generate a live index of inter-service communication. Its product, Nebula, deploys within a customer's cloud environment and produces an auto-generated service catalog that maps service interfaces, inter-service dependencies, usage examples, and service contributors, along with a GraphQL endpoint for integration with existing developer tooling and an IDE extension. Nebula is designed for enterprises operating 100 or more microservices, enabling development teams to quickly understand data flow across complex distributed systems and accelerate debugging. The company is headquartered in San Francisco, California.