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Helicone / helicone
🧊 Open source LLM observability platform. One line of code to monitor, evaluate, and experiment. YC W23 🍓
langwatch / langwatch
Open-Source Agent Observability & Evals for AI Platform teams. Trace, test, route and govern every agent & coding assistant in the company.
Popularity
Repository stars6,271Highest5,015
Fork701Highest426
Maintenance
Last push2026-10-282026-11-06
Maintenance notesNot verifiedNot verified
Repository created2023-01-312023-09-09
License & use
LicenseApache-2.0 · PermissiveApache-2.0 · Permissive
PricingPricing not verifiedPricing not verified
Basics
Browse by purposeModel and data evaluationModel and data evaluation · Observability
TypeApps & systemsApps & systems
SubcategoryOperationsOperations
PlatformNot verifiedNot verified
First collected2026-11-032026-11-03
LanguageTypeScriptTypeScript
License tiers are derived from metadata. Check obligations for your use; unknown does not mean prohibited. Measured at 2026-11-06 UTC