Comparison
OnlyWorlds vs ECC
ECC has more GitHub stars (280,199 vs 0). ECC was updated more recently (last commit 4h ago). Data comes straight from GitHub and refreshes daily.
OnlyWorlds
Read and write typed fictional worlds (22 linked element types) via the OnlyWorlds open standard.
$
claude mcp add --transport http onlyworlds https://www.onlyworlds.com/mcp
ECC
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
$
/plugin marketplace add https://github.com/affaan-m/ECC| Metric | OnlyWorlds | ECC |
|---|---|---|
| Type | MCP server | MCP server |
| GitHub stars | 0 | 280,199 |
| Stars, last 7 days | n/a | n/a |
| Forks | 0 | 41,674 |
| Upvotes | 0 | 0 |
| Language | n/a | JavaScript |
| License | n/a | MIT |
| Last commit | n/a | 4h ago |
| Created | n/a | Jan 2026 |
| Categories | n/a | AI & LLM tooling, Memory & knowledge, Security |