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Project comparison
Harnessrouter vs langchain
Compare adoption, momentum, maintenance health, and project basics before choosing which tool to evaluate deeper.
Harnessrouter
HarnessRouter Community Edition: the self-hosted, Apache-2.0 edition of the unified interface for agent harnesses. Run Codex, Claude Code, Hermes, and more through one API, with sessions, streaming, files, cancellation, and failure handling. Implements the Unified Harness Protocol (UHP), an open standard. Your keys, your infrastructure.
Best matched with other agent tools.
555
Stars
0
Weekly
64/100
Health
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.
| Signal | Harnessrouter | langchain |
|---|---|---|
| Evidence status | Basic listing· 2026-10-04 09:18 UTC | Verified snapshot· 2026-10-04 09:19 UTC |
| GitHub stars | 555 | 147.4K |
| Weekly growth | 0 | +599 |
| Health score | Healthy64/100 | Strong84/100 |
| Contributors | 8 | 3.7K |
| Commits per week | 15.5 | 50.5 |
| Open issues | 2 | 569 |
| Language | Python | Python |
| License | Apache-2.0 | MIT |
| Last commit | 2026-08-24 01:34 UTC | 2026-10-03 08:31 UTC |
| Last release | v0.9.1 | langchain-core==1.4.0 |
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