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

# ECC vs pyspur

Neutral, constraint-first comparison with live GitHub stats.

| | [ECC](/tools/affaan-m-ecc.md) | [pyspur](/tools/pyspur-dev-pyspur.md) |
| --- | --- | --- |
| Tagline | The agent harness performance optimization system | A visual playground for agentic workflows |
| Stars | 226,991 | 5,748 |
| Forks | 34,707 | 428 |
| Open issues | 73 | 39 |
| Language | JavaScript | TypeScript |
| License | MIT | Apache-2.0 |
| Categories | AI Agents, Developer Tools | AI Agents, Developer Tools |

---

**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/_