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Langfuse vs Knostic

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Langfuse compared with Knostic
Detail LangfuseKnostic logo Knostic
What it doesOpen Source Agent Evals & Observability Control plane for agentic AI security on the endpoint
StageEstablished Not given
FoundedNot given Not given
Based inDE US
Pricing modelFreemium Freemium
PricingNot given Kirin: Free ($0/mo) for individual developers and small teams (1-5 users), Team plan at $15/mo per user for growing teams (5+ users), Enterprise plan with custom pricing. AgentMesh: Free ($0/mo) with 300 items per category, Premium at $15/mo per user, Pro at $850/mo per user for unlimited API access
Key features
  • Hierarchical traces capture every LLM call, tool invocation, and retrieval step
  • LLM-as-a-judge, heuristic functions, or human review evaluations
  • Prompt management with one-click deployments and rollbacks
  • Playground to test prompts on real production inputs and compare models
  • Experiments with test cases and side-by-side comparison
  • Human annotation and collaborative human-in-the-loop workflows
  • Cost and latency monitoring with dashboards and alerts
  • REST APIs and Query SDK for data access
  • Langfuse Assistant to automate the AI engineering loop
  • Policy enforcement before agent execution
  • Blocks prompt injections and rogue agent actions
  • Real-time detection of malicious behavior
  • MCP server scanning and blocking
  • Shadow AI discovery across organization
  • Secrets detection and prevention
  • Skills and extensions vetting
  • Dangerous artifacts rejection
  • Support for Cursor, Claude Code, GitHub Copilot, Windsurf
  • Minute-level deployment
What makes it different
  • MIT licensed open source platform with no data lock-in
  • Enterprise scale architecture handling billions of monthly events
  • Works with any language and framework with no framework lock-in
  • Async by default so tracing never blocks your application
  • Visibility into shadow AI across enterprise systems
  • Unified control plane for multiple coding agents and IDEs
  • Supply chain threat discovery before components run
  • Secure coding enforcement with threat modeling
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)80 +1 (up) since last check62 +1 (up) since last check
Trust Flow (Majestic)3516
Citation Flow (Majestic)5440
Referring domains (Majestic)6114810

5 details filled in for both companies.

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