Welcome to PromptHelm
An overview of the PromptHelm prompt management platform — what it is, who it's for, and how to get started.
PromptHelm is the prompt management platform built for LLM engineering teams.
It treats prompts as versioned code artifacts with main / staging /
dev branches, routes traffic across every major provider through a single
gateway, and surfaces cost, latency, and cache-hit ratio as first-class
metrics.
Who PromptHelm is for
- Engineering teams shipping LLM features to real users.
- Platform teams who need to consolidate provider keys, audit trails, and cost reporting in one place.
- Builders who want a prompt history more rigorous than "git blame app/prompts.ts".
What you get
Node.js quickstart
Install the SDK, mint a token, and ship your first request in 60 seconds.
Python quickstart
The same flow with the Python SDK — sync and async examples.
iOS / Swift quickstart
Add the SDK via Swift Package Manager and stream with AsyncSequence.
Android / Kotlin quickstart
Gradle dependency, BuildConfig key injection, and Flow-based streaming.
Java quickstart
Maven or Gradle install with Iterator-based streaming on Java 17 LTS.
.NET / C# quickstart
dotnet add package, ASP.NET Core DI, and IAsyncEnumerable streaming.
Concepts: Prompts & versions
The data model that underpins everything: aggregates, immutable versions, and branches.
Guides: Managing versions
Task-oriented walkthroughs for promote, revert, CI/CD, and cost work.
API reference
Every REST endpoint of the control plane and gateway.
GitHub
Source for the open SDKs and examples.
Architecture at a glance
PromptHelm is a multi-tenant SaaS made of three independent surfaces:
- Control plane — manages prompts, versions, environments, provider keys, and analytics. Authenticated via short-lived JWTs.
- Gateway — a streaming proxy that dispatches completions to OpenAI, Anthropic, Gemini, or DeepSeek. Authenticated with API tokens.
- Dashboards & SDKs — the web app at
app.prompthelm.appand the official Node and Python SDKs that wrap the control plane and gateway.
Private beta
PromptHelm is currently invite-only. Join the waitlist for early access — we're rolling invites out weekly.