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Langfuse vs Proxed.AI

Provides observability for LLM apps but does not hide API keys or enforce DeviceCheck
LangfuseOpen Source Observability & Analytics for LLM Apps 🕵️‍♂️Proxed.AISecure AI APIs in iOS - No SDK, Just Change Your API URL

Side by side

What it is
Langfuse:Langfuse is an open-source platform for tracing, evaluating and monitoring LLM applications and AI agents.
Proxed.AI:Proxed.AI is a zero-SDK proxy that secures AI API keys in iOS apps by routing requests through a protected URL.
Best for
Langfuse:LLM observability & analytics
Proxed.AI:API key protection for iOS AI apps
Who it’s for
Langfuse:Developers building, debugging and scaling LLM-based apps and agents.
Proxed.AI:iOS developers and mobile teams that embed AI services.
Pricing
Langfuse:Freemium
Proxed.AI:Freemium
Plans
Langfuse:Hobby Free · Core $29 per month · Pro $199 per month · Enterprise $2499 per month
Proxed.AI:Self-Host Free
Open source
Langfuse:Yes, 35,097 GitHub stars
Proxed.AI:Yes, 8 GitHub stars
Works with
Langfuse:Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift
Proxed.AI:iOS, Apple DeviceCheck, OpenAI, Anthropic
DevHunt upvotes
Langfuse:89
Proxed.AI:2
Launched on DevHunt
Langfuse:Jan 2023
Proxed.AI:Dec 2025

Langfuse features

  • Hierarchical Traces. Capture every LLM call, tool invocation and retrieval step with filters for user, session, cost and latency.
  • Prompt Management. Version, fetch, release and cache prompts separately from code with one-click deployments.
  • Evaluation Engine. Run LLM-as-judge, heuristic or human-review evaluations on production data or experiments.
  • Experiments & Datasets. Define test cases, run experiments and create golden datasets for continuous improvement.
  • Dashboards & Alerts. Monitor cost, latency and quality via custom dashboards and automated alerts.
  • Human Annotation. Collaborative human-in-the-loop workflows with annotation queues.
  • Extensive Integrations. Supports Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift and 100+ agent frameworks and model providers.
  • Self-hosted & Cloud Options. Available as hosted SaaS or self-hosted under MIT license.
Langfuse on DevHunt →Alternatives

Proxed.AI features

  • One-Line Integration. Secure AI APIs by simply replacing the provider URL, no SDK or backend required.
  • Apple DeviceCheck Authentication. Verifies hardware authenticity of iOS devices to block emulators and fake requests.
  • Split-Key Architecture. Keeps the sensitive half of the provider key on Proxed servers, exposing only a harmless fragment in the app.
  • Intelligent Rate Limiting. Set granular usage limits and spending caps per project, user or device.
  • Response Formatting. Enforces consistent output structures from any AI model for predictable parsing.
  • Real-Time Monitoring. Dashboard shows usage, costs and security logs instantly.
Proxed.AI on DevHunt →Alternatives

Based on each tool's website and DevHunt data. Details may change; check the official sites.