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phoenix

AI Observability & Evaluation

helicone

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

Popularity
Repository stars12,103Highest6,254
7-day net stars——
Fork1,258Highest701
30-day trendInsufficient historyInsufficient history
Maintenance
Last push2026-11-022026-10-28
Maintenance notesNot verifiedNot verified
Repository created2022-11-092023-01-31
License & use
LicenseLicense not declaredApache-2.0 · Permissive
PricingPricing not verifiedPricing not verified
Basics
Browse by purposeModel and data evaluationModel and data evaluation
TypeApps & systemsApps & systems
SubcategoryOperationsOperations
PlatformNot verifiedNot verified
Cost detailsCheck current official software, hosting, model and infrastructure pricing.Check current official software, hosting, model and infrastructure pricing.
Pricing source——
First collected2026-11-032026-11-03
MetricRepository stars, not unique users or individual-skill installsRepository stars, not unique users or individual-skill installs
LanguagePythonTypeScript
About this projectAI Observability & Evaluation🧊 Open source LLM observability platform. One line of code to monitor, evaluate, and experiment. YC W23 🍓
Measured at2026-11-02 19:00 UTC2026-11-02 19:00 UTC

License tiers are derived from metadata. Check obligations for your use; unknown does not mean prohibited. Ranked by repository stars, one position per repository. Stars and forks are not user counts.