Confident AI
DeepEval-powered LLM evaluation platform to test, benchmark, and safeguard apps
Open-Source Projects
Discover top open-source software, updated regularly with real-world adoption signals.
Discover top open-source software, updated regularly with real-world adoption signals.
Open-source LLM observability and developer platform for AI applications
All-in-one platform for logging, monitoring, and optimizing LLM requests across OpenAI, Anthropic, and 20+ providers with one line of code.
Helicone is a comprehensive LLM developer platform that provides observability, prompt management, and evaluation tools for AI applications. Designed for teams building with large language models, it integrates with a single line of code to capture requests across OpenAI, Anthropic, Gemini, LangChain, LlamaIndex, LiteLLM, and over 20 other providers.
The platform offers deep tracing for agents and chatbots, cost and latency analytics, prompt versioning with production data, and automated evaluations through LastMile and Ragas integrations. Teams can test prompts in an interactive playground, fine-tune models with OpenPipe or Autonomi, and leverage gateway features like caching, rate limiting, and LLM security.
Helicone Cloud runs on Cloudflare Workers with ~10ms latency overhead and includes 100k free requests monthly. For self-hosting, Docker and production-ready Helm charts are available. The architecture comprises a NextJS frontend, Express-based log collector (Jawn), Cloudflare Workers proxy, Supabase for auth, ClickHouse for analytics, and MinIO for object storage. SOC 2 and GDPR compliance make it enterprise-ready.
When teams consider Helicone, these hosted platforms usually appear on the same shortlist.
Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.
Multi-Agent System Debugging
Trace complex agent interactions across sessions to identify bottlenecks, track costs per agent, and optimize prompt chains using production data in the playground.
Production Cost Optimization
Monitor LLM spending across OpenAI, Anthropic, and other providers in real-time, export metrics to PostHog for custom dashboards, and implement caching to reduce redundant requests.
Prompt Version Management
Version control prompts with production performance data, A/B test variations in the playground, and roll back to previous versions when quality degrades.
Compliance-Ready LLM Logging
Self-host on internal infrastructure to meet data residency requirements while maintaining SOC 2 and GDPR compliance for regulated industries like healthcare or finance.
Helicone Cloud adds approximately 10ms of latency overhead because it runs on Cloudflare Workers at the edge. Latency benchmarks are available in the documentation.
Yes, Helicone can be fully self-hosted using Docker or Helm charts. You'll run all five services (Web, Worker, Jawn, Supabase, ClickHouse, MinIO) in your own infrastructure.
Helicone integrates with OpenAI, Anthropic, Azure OpenAI, Gemini, AWS Bedrock, Groq, LiteLLM, OpenRouter, TogetherAI, Anyscale, and 10+ other providers, plus frameworks like LangChain and LlamaIndex.
Yes, Helicone Cloud offers 100k free requests per month with no credit card required. After that, you pay based on usage.
Project at a glance
ActiveLast synced 4 days ago
