Vespa vs Weaviate
An independent, evidence-based trust comparison of Vespa and Weaviate, two Memory & Knowledge projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.
Vespa leads on trust — 86.0/100 (Grade A) vs 72.4/100 (Grade B), a 13.6-point gap. Full breakdown below.
| Signal | Vespavespa-engine/vespa | Weaviateweaviate/weaviate |
|---|---|---|
| HVTrust score | 86.0 | 72.4 |
| Evidence grade | A | B |
| Coverage grade | A | A |
| Overall rank | #61 | #256 |
| Rank in Memory & Knowledge | #4 | #15 |
| GitHub stars | 7.1k | 16.8k |
| Last updated | today | today |
| Build provenance | Yes | No |
| OSSF Scorecard | 6.3 / 10 | 6.6 / 10 |
| License | Apache-2.0 | BSD-3-Clause |
| Downloads | 187k/wk | 1.8M/wk |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 18.1 | 9.9 |
| Identity & provenance / 18 | 18.0 | 10.8 |
| Transparency / 17 | 13.9 | 14.1 |
| Maintenance / 20 | 20.0 | 20.0 |
| Adoption / 20 | 16.3 | 18.5 |
| Runtime capability surface (full matrix) | ||
| MCP server | — | Declared |
| External providers | — | 1 — Weaviate |
| Requires API keys | No | No |
| Plugin surface | plugins | extensions |
| Provenance drift | Unknown | Unknown |
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 →