TreeScale

TreeScale is a no-code platform that turns LLM prompts and prompt chains into production-ready API endpoints without any backend code. You define endpoints, chain prompts together, store reusable context, and TreeScale exposes the whole thing as a callable API your apps and integrations can hit. It bundles prompt optimization, version management, a built-in debugger, and statistical evaluation so teams can iterate on prompts the way engineers iterate on services.

The pitch is aimed at builders who want LLM-powered features behind an API surface but don't want to babysit infrastructure, write glue code, or hand-roll a prompt orchestrator. It is model-agnostic, supporting popular providers like OpenAI alongside self-hosted open-source models, and ships LLM Integrations (its term for agent-style tool connectors) that let chains call out to external services. Pricing starts with a free tier that lets you publish your first LLM app, with paid tiers layered on top.

It sits in the same conceptual space as LangChain-as-a-service, Dify, and Flowise, but skews further toward the API-product use case rather than chat UI building. The trade-off is the usual hosted-platform one: you trade portability for speed of delivery and a managed runtime.