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An open-source AI tools directory with clear use cases, visible source freshness, and maintenance evidence for anyone deciding what to try.

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Rankings use public ecosystem signals. Treat them as a starting point, then confirm license, setup, safety, and fit with the upstream project.
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Project comparison

Helicone vs langchain

Compare adoption, momentum, maintenance health, and project basics before choosing which tool to evaluate deeper.

Helicone

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

Best matched with other agent tools.

6.1K
Stars
+450
Weekly
57/100
Health
langchain

The agent engineering platform.

Best matched with other agent tools.

147.4K
Stars
+599
Weekly
84/100
Health

Quick Take

Adoption

langchain has the larger GitHub footprint with 147.4K stars.

Momentum

langchain is currently growing faster at +599 stars this week.

Maintenance

langchain has the stronger automated maintenance signal at 84/100. This is not a security or fit verdict.

Side-by-side evidence

Use these signals to narrow your choice, then confirm setup, license, and fit upstream.

SignalHeliconelangchain
Evidence statusBasic listing· 2026-10-04 09:17 UTCVerified snapshot· 2026-10-04 09:19 UTC
GitHub stars6.1K147.4K
Weekly growth+450+599
Health scoreWatch57/100Strong84/100
Contributors1013.7K
Commits per week0.250.5
Open issues154569
LanguageTypeScriptPython
LicenseApache-2.0MIT
Last commit2026-08-23 16:42 UTC2026-10-03 08:31 UTC
Last releasev2025.08.21-1langchain-core==1.4.0

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