# PromptCache documentation

> Developer and user documentation for PromptCache. PromptCache is a hosted prompt management service for teams building on large language models. Prompts are written once, saved as immutable numbered versions, pinned to environments, and served over a stable REST API, an official JavaScript and TypeScript SDK, a remote MCP server, and an n8n community node.

Key facts:

- A prompt has one live draft and any number of published versions. Publishing snapshots the draft into a numbered version that can never change.
- Environments point at a chosen version, so a rollback is repointing the environment rather than reverting code and redeploying.
- PromptCache does not proxy model traffic. It returns the rendered prompt template and you call your own model provider directly.
- PromptCache is a hosted service and is not self-hostable. Teams that require self-hosting should look at Langfuse, which is covered honestly on the comparison page.
- Plans are Free at $0, Pro at $30 per month, and Enterprise at a quoted price. The free tier is self-serve and paid plans are invoiced directly rather than through a checkout.
- The REST API base URL is https://api.promptcache.app and the JavaScript SDK is published on npm as @optiqlabs/promptcache-sdk.
- The remote MCP server is https://api.promptcache.app/api/mcp, authenticated with OAuth 2.1 and PKCE, and works with Claude Code and other MCP clients.

## Guide

- [Welcome](https://docs.promptcache.app/index.md): What PromptCache is and where to start
- [Getting started](https://docs.promptcache.app/getting-started.md): Create an account, pick a workspace, and open the dashboard
- [Managing prompts](https://docs.promptcache.app/managing-prompts.md): Create, edit, publish, and share prompts in the web app
- [Connect Claude Code](https://docs.promptcache.app/mcp-claude-code.md): Link PromptCache to Claude Code with OAuth
- [Using MCP in Claude](https://docs.promptcache.app/using-mcp.md): Tips for working with prompt tools in your AI assistant
- [n8n integration](https://docs.promptcache.app/n8n-integration.md): Read-only PromptCache community node for n8n workflows

## Developers

- [Authentication](https://docs.promptcache.app/authentication.md): API keys and access tokens for the REST API
- [Prompts API](https://docs.promptcache.app/prompts.md): Create, update, invoke, and inject prompts over HTTP
- [Versions & forking](https://docs.promptcache.app/versions.md): Publish snapshots, version history, and fork prompts
- [Public catalog API](https://docs.promptcache.app/public-api.md): Browse and invoke public prompts without signing in
- [JavaScript / TypeScript SDK](https://docs.promptcache.app/sdk.md): Official npm client for PromptCache

## Optional

- [Full text of the documentation](https://docs.promptcache.app/llms-full.txt): Every documentation page in one file, with code samples expanded.
- [PromptCache product index for LLMs](https://promptcache.app/llms.txt): Marketing pages, guides, and tool comparisons on the main site.
- [Sitemap](https://docs.promptcache.app/sitemap.xml): Every documentation URL.