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Helicone

Appears in 8 awesome lists

Open-source LLM observability proxy (YC W23) with the largest open-source pricing database (300+ models). One-line proxy integration provides cost tracking, token monitoring, session tracing, and prompt versioning across providers. The AI Gateway component handles request routing and caching with…

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Found in these lists

Awesome Ai Agents 2026

Section: Tracing and Monitoring · OSS LLM observability. One-line integration.

ActiveScore 74

Awesome Ai Sdks

Section: Links

ActiveScore 70

awesome-ChatGPT-repositories

Section: Prompts · 🧊 Open source LLM-Observability Platform for Developers. One-line integration for monitoring, metrics, evals, agent tracing, prompt management, playground, etc. Supports OpenAI SDK, Vercel AI SDK, Anthropic SDK, LiteLLM, LLamaIndex, LangChain, and more. 🍓 YC W23

FreshScore 87

Awesome GPT-4

Section: Open-source projects · GPT4 Monitoring and Observability.

StaleScore 52

Awesome Harness Engineering

Section: Observability & Tracing · Open-source LLM observability proxy (YC W23) with the largest open-source pricing database (300+ models). One-line proxy integration provides cost tracking, token monitoring, session tracing, and prompt versioning across providers. The AI Gateway component handles request routing and caching with…

FreshScore 88

Awesome LLMOps

Section: Observability · Open source LLM observability platform. One line of code to monitor, evaluate, and experiment with features like prompt management, agent tracing, and evaluations.

ActiveScore 75

Awesome Open Source AI

Section: 8. MLOps / LLMOps & Production · Open-source LLM observability with request logging, caching, rate limiting, and cost analytics.

FreshScore 89

Awesome Production Machine Learning

Section: Evaluation and Monitoring · Helicone is the all-in-one, open-source LLM developer platform.

FreshScore 92

promptfoo

Test your prompts, models, RAGs. Evaluate and compare LLM outputs, catch regressions, and improve prompt quality. LLM evals for OpenAI/Azure GPT, Anthropic Claude, VertexAI Gemini, Ollama, Local & private models like Mistral/Mixtral/Llama with CI/CD

In 11 listsDetails

Prompt Engineering Guide

🐙 Guides, papers, lecture, notebooks and resources for prompt engineering

In 11 listsDetails

Phoenix

Open-source AI observability & evaluation platform (Arize) — OpenTelemetry-native tracing for agents, LLM-as-judge evals, versioned datasets & experiments for prompt regression testing, prompt management with version control and replay, plus an MCP endpoint so Claude Code/Cursor can query traces…

In 10 listsDetails

Langfuse

The most widely adopted self-hostable LLM observability platform: traces every agent step, manages prompt versions, and runs evals in one tool. Preferred over cloud-only alternatives when data residency or cost control is a constraint.

In 10 listsDetails

DocsGPT

Private AI platform for building intelligent agents and assistants with enterprise search. Features Agent Builder, deep research tools, multi-format document analysis, and multi-model support. MIT licensed.

In 10 listsDetails

DemoGPT

DemoGPT enables you to create quick demos by just using prompt. It applies ToT approach on Langchain documentation tree.

In 9 listsDetails

Portkey AI Gateway

🟢🟠 — Open AI gateway with provider routing, fallback and retry controls, guardrail integrations, observability, and MCP traffic support for model and agent applications. (Portkey) — note: the gateway is general infrastructure rather than a standalone security scanner; model-provider…

In 6 listsDetails

Bark

Bark is a transformer-based text-to-audio model created by Suno. Bark can generate highly realistic, multilingual speech as well as other audio - including music, background noise and simple sound effects.

In 6 listsDetails