LangWatch vs Opik
An independent, evidence-based trust comparison of LangWatch and Opik, two Observability & Evaluation projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.
LangWatch leads on trust — 85.3/100 (Grade A) vs 78.4/100 (Grade B), a 6.9-point gap. Full breakdown below.
| Signal | LangWatchlangwatch/langwatch | Opikcomet-ml/opik |
|---|---|---|
| HVTrust score | 85.3 | 78.4 |
| Evidence grade | A | B |
| Coverage grade | A | A |
| Overall rank | #55 | #103 |
| Rank in Observability & Evaluation | #4 | #6 |
| GitHub stars | 3.5k | 21.8k |
| Last updated | today | today |
| Build provenance | Yes | Yes |
| OSSF Scorecard | 4.9 / 10 | — |
| License | Apache-2.0 | Apache-2.0 |
| Downloads | 88k/wk | 428k/wk |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 18.1 | 12.1 |
| Identity & provenance / 18 | 18.0 | 18.0 |
| Transparency / 17 | 12.7 | 8.5 |
| Maintenance / 20 | 20.0 | 20.0 |
| Adoption / 20 | 15.1 | 17.9 |
| Runtime capability surface (full matrix) | ||
| MCP server | Implemented | Implemented |
| External providers | 2 — Amazon Bedrock, OpenAI | 4 — Amazon Bedrock, Anthropic, Multi-provider (LiteLLM), … |
| Requires API keys | Yes | No |
| Plugin surface | plugins | extensions |
| Provenance drift | Partial | Partial |
How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption, scaled by an evidence-confidence factor. Grade bands: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Signals refresh daily. Full methodology v4.3 →