---
title: "Helicone"
pageType: "tool-profile"
schemaVersion: "1.0"
snapshotId: "tv-20260915-f4c107995a2e"
generatedAt: "2026-09-15T07:02:20.000Z"
canonicalUrl: "https://toolvitals.com/tools/helicone/"
jsonUrl: "https://toolvitals.com/api/agent/tools/helicone"
indexable: true
---

# Helicone

🧊 Open source LLM observability platform. One line of code to monitor, evaluate, and experiment. YC W23 🍓

## Decision context

- Status: warning
- ToolVitals score: 56/100
- Health score: 64/100
- Shipping score: 45/100
- Score mode: verdict
- Data confidence: 90/100
- Source coverage: 100/100
- Last evidence check: 2026-09-15

## Classification

- Use case: Observability (observability)
- Category: Monitoring (monitoring)
- Tool mode: Source-visible project
- Openness: OSI-approved OSS
- License: Apache-2.0
- Tags: open-source, agent-monitoring, analytics, evaluation, gpt, langchain, large-language-models, llama-index, llm, llm-cost, llm-evaluation, llm-observability, llmops, monitoring, openai, playground

## Public repository signals

- Repository: [Helicone/helicone](https://github.com/Helicone/helicone)
- Stars: 6154 (adoption context only)
- Forks: 669
- Open issues: 156
- Last commit date: 2026-09-15
- Releases in 90 days: 0

## Source receipts

- [Official website](https://helicone.ai/) — checked 2026-09-15
- [Source repository](https://github.com/Helicone/helicone) — checked 2026-09-15

## Discovery status

- Search indexable: yes
- Reason: sufficient tool evidence

## Interpretation limits

- ToolVitals scores summarize bounded public maintenance, shipping, openness, and evidence signals. They are not user-review ratings.
- GitHub stars and related popularity metrics are adoption context, not quality evidence.
- Missing values mean not collected or not confidently established; they do not mean zero.
- Public signals do not prove security, uptime, support quality, customer satisfaction, or production suitability.
- Verify material decisions against the linked first-party sources and your own requirements.