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Langfuse vs Proxed.AI
Provides observability for LLM apps but does not hide API keys or enforce DeviceCheck
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LangfuseOpen Source Observability & Analytics for LLM Apps 🕵️♂️
Proxed.AISecure AI APIs in iOS - No SDK, Just Change Your API URLWhich to pick
Pick Langfuse if you want…
- LLM observability & analytics
- Open-source code (langfuse/langfuse on GitHub)
- Integrations with Python, TypeScript or Go (on Langfuse's list, not Proxed.AI's)
Pick Proxed.AI if you want…
- API key protection for iOS AI apps
- Integrations with iOS or Apple DeviceCheck (on Proxed.AI's list, not Langfuse's)
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:—
- Works with
- Langfuse:Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift
- Proxed.AI:iOS, Apple DeviceCheck, OpenAI, Anthropic
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.
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.
Langfuse vs Proxed.AI FAQ
Is Langfuse or Proxed.AI free?+
Langfuse has a free plan (Hobby); paid plans start at $29/month (Core). Proxed.AI has a free plan (Self-Host) and paid plans.
Is Langfuse or Proxed.AI open source?+
Langfuse is open source (langfuse/langfuse on GitHub). DevHunt has no public source repository on record for Proxed.AI.
Do Langfuse and Proxed.AI integrate with the same tools?+
Partly. Both list OpenAI and Anthropic. Langfuse also lists Python, TypeScript, Go, Java and 8 more; Proxed.AI also lists iOS and Apple DeviceCheck.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.