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

# ECC vs LEANN

Neutral, constraint-first comparison with live GitHub stats.

| | [ECC](/tools/affaan-m-ecc.md) | [LEANN](/tools/startrail-org-leann.md) |
| --- | --- | --- |
| Tagline | The agent harness performance optimization system | RAG on Everything with LEANN |
| Stars | 226,991 | 12,653 |
| Forks | 34,707 | 1,138 |
| Open issues | 73 | 44 |
| Language | JavaScript | Python |
| License | MIT | MIT |
| Categories | AI Agents, Developer Tools | Data & Retrieval, Vector Databases |

---

**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/_