Langfuse - Mirage

LangfuseVFS exposes Langfuse projects and traces as a read-only tree. Setup steps for the public/secret keys live at Langfuse Credentials.

Node

pnpm add @struktoai/mirage-node

import { LangfuseVFS, MountMode, Workspace } from '@struktoai/mirage-node'

const lf = new LangfuseVFS({
  publicKey: process.env.LANGFUSE_PUBLIC_KEY!,
  secretKey: process.env.LANGFUSE_SECRET_KEY!,
  host: process.env.LANGFUSE_HOST,
})

const ws = new Workspace({ '/lf': lf }, { mode: MountMode.READ })
await ws.shell('ls /lf/traces/')

Browser

pnpm add @struktoai/mirage-browser

import { LangfuseVFS, MountMode, Workspace } from '@struktoai/mirage-browser'

const lf = new LangfuseVFS({
  publicKey: LANGFUSE_PUBLIC_KEY,
  secretKey: LANGFUSE_SECRET_KEY,
})

Config

Field	Default	Notes
`publicKey`	required	Langfuse public key.
`secretKey`	required	Langfuse secret key. Redacted in snapshots.
`host`	`https://cloud.langfuse.com`	Override for self-hosted Langfuse.
`defaultTraceLimit`	`100`	Default page size for trace listings.
`defaultSearchLimit`	`100`	Default page size for search.

Mount mode

read. For the layout and search behavior see the Python Langfuse docs.