All 205 Dependencies
Every package Langfuse depends on, ranked by repo health score.
Langfuse is an open source LLM engineering platform built for teams developing, monitoring, and debugging AI applications at scale. It provides end-to-end observability across complex, multi-step LLM workflows — capturing traces, spans, user sessions, and cost metrics — with zero-latency impact thanks to asynchronous ingestion and aggressive caching.
The platform unifies several critical workflows that teams otherwise stitch together from separate tools: tracing LLM calls and agent actions, versioning and deploying prompts collaboratively, running evaluations using LLM-as-a-judge or human labeling, and managing datasets for continuous benchmarking. All of these are integrated into a single system with shared context, enabling faster iteration cycles.
Langfuse integrates natively with major frameworks and SDKs including OpenAI, LangChain, LlamaIndex, LiteLLM, Vercel AI SDK, Mastra, Haystack, DSPy, and Instructor — with both automated and manual instrumentation options. It also supports OpenTelemetry as a standard ingestion path, making it compatible with any observability stack.
Deployment is flexible: teams can run Langfuse on a single machine with Docker Compose in under five minutes, scale to Kubernetes using the official Helm chart, or use managed Terraform templates for AWS, Azure, and GCP. The managed Langfuse Cloud option offers a generous free tier with no credit card required.
22
@lezer/highlight
^1.2.3
24
@codemirror/lang-json
^6.0.2
24
@codemirror/lang-python
^6.2.1
24
@codemirror/lint
^6.9.5
24
@codemirror/search
^6.7.0
25
@codemirror/language
^6.12.3
31
CodeMirror State
^6.6.0
32
lang-javascript
^6.2.5
33
@codemirror/autocomplete
^6.17.0
34
tailwindcss-animate
^1.0.7
37
fastest-levenshtein
^1.0.16
37
react18-json-view
^0.2.8-canary.6
40
dotenv-cli
^7.4.4
outdated
40
react-responsive
^10.0.1
40
remark-gfm
^4.0.1
42
ajv-formats
^3.0.1
42
clsx
^2.1.1
43
cuid2
^2.2.2
outdated
44
cmdk
^1.0.4
44
next-themes
^0.4.6
45
AWS SDK JS Crypto Helpers (SHA256 Browser)
^5.2.0
47
tiktoken
^1.0.20
48
Vaul
^1.1.2
49
Tailwind CSS Forms
^0.5.11
49
cors
^2.8.6
49
prism-react-renderer
^2.4.1
49
tailwindcss-typography
^0.5.19
50
@t3-oss/env-core
^0.11.1
outdated
50
decimal.js
^10.4.3
50
superjson
2.2.2
outdated
51
Winston
^3.15.0
52
lru-cache
^11.2.7
53
React-Resizable
^3.1.3
outdated
53
safe-regex2
^5.0.0
55
bcrypt.js
^2.4.3
outdated
57
ipaddr.js
^2.2.0
58
p-limit
^7.3.0
59
NextAuth.js
^1.0.7
outdated
59
NextAuth.js
^4.24.14
59
jest-dom
^6.4.6
outdated
60
Ajv
^8.18.0
61
React Testing Library
^15.0.7
outdated
61
Sonner
^2.0.7
62
prettier-plugin-tailwindcss
^0.7.2
outdated
63
helmet
^7.1.0
outdated
63
lossless-json
^4.1.1
64
proxy-agent
^7.0.6
outdated
65
Lodash
^4.18.1
65
chroma.js
^3.1.2
65
react-markdown
^10.1.0
67
dotenv-expand
^10.0.0
outdated
67
prisma-cli
^6.19.3
outdated
69
React CodeMirror
^4.23.7
69
React CodeMirror
^4.25.8
69
React Icons
5.5.0
outdated
69
eslint-config-prettier
^10.1.8
70
dockerode
^4.0.9
outdated
71
diff
^8.0.4
outdated
72
eslint-plugin-tailwindcss
4.0.2
outdated
72
globals
^16.5.0
outdated
73
uuid
^14.0.0
74
TypeScript Native Preview
7.0.0-dev.20260122.3
74
vite-tsconfig-paths
^6.1.1
75
rate-limiter-flexible
^5.0.4
outdated
76
elkjs
^0.11.1
outdated
77
react-day-picker
^9.14.0
outdated
78
Radix UI
^1.2.12
78
Radix UI
^1.1.15
78
Radix UI
^1.1.11
78
Radix UI
^1.3.3
78
Radix UI
^1.1.12
78
Radix UI
^1.1.15
78
Radix UI
^2.1.16
outdated
78
Radix UI
^1.1.15
78
Radix UI
^2.1.8
outdated
78
Radix UI
^1.1.15
78
Radix UI
^1.1.8
78
Radix UI
^1.3.8
78
Radix UI
^1.2.10
78
Radix UI
^2.2.6
outdated
78
Radix UI
^1.1.8
78
Radix UI
^1.3.6
78
Radix UI
^1.2.4
78
Radix UI
^1.2.6
78
Radix UI
^1.1.13
78
Radix UI
^1.1.10
78
Radix UI
^1.1.11
78
Radix UI
^1.2.8
78
csv-parse
^5.6.0
outdated
78
dotenv
^16.6.1
outdated
80
yaml
^2.9.0
81
Zustand
^5.0.14
81
nanoid
^3.3.11
outdated
82
JSONPath
10.3.0
outdated
82
class-variance-authority
^0.7.1
82
date-fns
^3.6.0
outdated
83
@hookform/resolvers
^5.2.2
outdated
83
MSW (Mock Service Worker)
^2.6.5
outdated
85
Streamdown
^2.5.0
85
tsx
^4.20.5
87
React Resizable Panels
^4.8.0
88
dnd-kit
^6.3.1
88
dnd-kit
^7.0.0
outdated
88
dnd-kit
^8.0.0
outdated
88
dnd-kit
^3.2.2
outdated
88
oci-common
^2.125.0
88
oci-common
^2.125.0
89
Nodemailer
^9.0.3
outdated
89
tailwind-merge
^3.5.0
90
Express
^5.2.1
90
MCP TypeScript SDK
1.29.0
outdated
90
Mastra Core
1.21.1
outdated
90
Mastra Core
1.46.0
outdated
90
Mastra Core
1.8.1
outdated
90
React Email
^0.5.1
outdated
90
React Email
^1.2.1
outdated
90
Tailwind CSS
^4.2.2
90
Tailwind CSS
^4.2.2
90
jsdom
^26.1.0
outdated
90
tRPC Server
^11.13.4
90
tRPC Server
^11.13.4
90
tRPC Server
^11.13.4
90
tRPC Server
^11.13.4
91
@clickhouse/client
1.23.1
outdated
91
BullMQ
^5.76.3
outdated
91
DOMPurify
^3.4.11
91
Prisma Client
^6.19.3
outdated
91
Prisma Client
^6.19.3
outdated
91
Recharts
^3.8.0
91
Smithy Core (@smithy/core)
4.5.1
outdated
91
TanStack Virtual (React)
^3.13.12
91
Zod
^4.3.6
91
core-js
^3.38.1
91
prettier
^3.8.3
91
react-dropzone
^14.4.1
outdated
91
react-grid-layout
^1.5.3
outdated
92
@vitejs/plugin-react
^4.7.0
outdated
92
AI SDK
^5.0.8
outdated
92
AI SDK
^4.0.5
outdated
92
AI SDK
^4.0.5
outdated
92
AI SDK
^4.0.6
outdated
92
AI SDK
^5.0.8
outdated
92
AI SDK
^4.0.0
outdated
92
AI SDK
^3.0.3
outdated
92
AI SDK
^7.0.0
92
Playwright
^1.57.0
92
React Hook Form
^7.72.0
92
TanStack Query
^5.85.1
92
TanStack Table
^8.20.5
outdated
92
lucide-react
^0.552.0
outdated
92
protobuf.js
7.6.5
outdated
92
undici
^7.28.0
outdated
93
AWS SDK for JavaScript (S3 Client)
catalog:
93
AWS SDK for JavaScript (S3 Client)
catalog:
93
AWS SDK for JavaScript (S3 Client)
catalog:
93
AWS SDK for JavaScript (S3 Client)
catalog:
93
AWS SDK for JavaScript (S3 Client)
catalog:
93
AWS SDK for JavaScript (S3 Client)
catalog:
93
AWS SDK for JavaScript (S3 Client)
catalog:
93
AWS SDK for JavaScript (S3 Client)
catalog:
93
Vitest
4.1.8
outdated
93
Vitest
^4.1.8
outdated
93
Vitest
^4.1.8
outdated
93
dd-trace
5.109.0
outdated
93
ioredis
^5.10.1
outdated
93
posthog-js
^1.390.2
93
posthog-js
^5.32.0
outdated
94
OpenTelemetry Auto-Instrumentations for Node.js
^0.75.0
outdated
94
OpenTelemetry Auto-Instrumentations for Node.js
^0.68.0
outdated
94
OpenTelemetry Auto-Instrumentations for Node.js
^0.68.0
outdated
94
OpenTelemetry Auto-Instrumentations for Node.js
^0.30.0
outdated
94
OpenTelemetry Auto-Instrumentations for Node.js
^0.64.0
outdated
94
OpenTelemetry Auto-Instrumentations for Node.js
^2.20.0
outdated
94
OpenTelemetry Auto-Instrumentations for Node.js
^0.8.11
outdated
94
Vite
^7.3.5
outdated
94
typescript-eslint
^8.59.0
94
typescript-eslint
^8.59.0
94
typescript-eslint
^8.57.1
95
ESLint
^9.39.2
outdated
95
ESLint
^9.39.2
outdated
95
Sentry JavaScript (@sentry/browser)
^10.64.0
outdated
95
Storybook
10.3.6
outdated
95
Storybook
10.3.6
outdated
95
Storybook
10.3.6
outdated
95
Storybook
10.3.6
outdated
95
Storybook
10.3.6
outdated
95
Stripe Node.js Library
^18.5.0
outdated
95
TypeScript
catalog:
96
Next.js
16.2.9
outdated
96
Next.js
16.2.9
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
>=1.0.0 <1.10.0
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
^2.9.0
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
^0.220.0
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
^0.220.0
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
^0.220.0
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
^2.9.0
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
^0.220.0
outdated
96
OpenTelemetry JavaScript (@opentelemetry/api)
^2.9.0
outdated
97
@azure/identity
^12.26.0
outdated
97
@slack/web-api
3.0.5
outdated
97
@slack/web-api
^7.15.0
outdated
98
Google Cloud Storage
^7.19.0
outdated
98
Google Cloud Storage
^10.6.2
outdated
98
React
19.2.4
outdated
98
React DOM
19.2.4
outdated
