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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

Plano vs langchain

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

Plano

Plano is an AI-native proxy server and data plane for agentic apps. Smart LLM routing, observability, agent orchestration, and guardrails so you stay focused on your agents core logic.

Best matched with other agent tools.

7.0K
Stars
+540
Weekly
66/100
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.

SignalPlanolangchain
Evidence statusNeeds recheck· 2026-08-31 11:03 UTCVerified snapshot· 2026-10-04 09:19 UTC
GitHub stars7.0K147.4K
Weekly growth+540+599
Health scoreHealthy66/100Strong84/100
Contributors433.7K
Commits per week3.450.5
Open issues141569
LanguageRustPython
LicenseApache-2.0MIT
Last commit2026-08-14 00:24 UTC2026-10-03 08:31 UTC
Last release0.4.33langchain-core==1.4.0

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