---
title: "ECC vs pgvector"
type: "comparison"
canonical_url: "https://www.graphcanon.com/compare/affaan-m-ecc-vs-pgvector-pgvector"
tools: ["affaan-m-ecc", "pgvector-pgvector"]
---

# ECC vs pgvector

Neutral, constraint-first comparison with live GitHub stats.

| | [ECC](/tools/affaan-m-ecc.md) | [pgvector](/tools/pgvector-pgvector.md) |
| --- | --- | --- |
| Tagline | The agent harness performance optimization system | Open-source vector similarity search for Postgres |
| Stars | 226,962 | 22,107 |
| Forks | 34,701 | 1,232 |
| Open issues | 73 | 14 |
| Language | JavaScript | C |
| License | MIT | Other |
| Categories | AI Agents, Developer Tools | Data & Retrieval |

---

**Machine-readable endpoints**

- JSON: [`/api/graphcanon/graph?tool=affaan-m-ecc`](/api/graphcanon/graph?tool=affaan-m-ecc)
- LLM index: [/llms.txt](/llms.txt)
- Full corpus: [/llms-full.txt](/llms-full.txt)

_GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_