AI Plugin Index
Ouroboros
CommunityMCP server by Q00 · updated · ★ 6.2k
Pins an acceptance spec; the verify command and expected output never enter the success contract. Ouroboros is a community project by Q00, not verified by a company domain.
Last commit 3 days ago
MIT: permissive, fine for commercial use
Clear description, published package or server URL, 6,249 stars, original repository
Downloads a script from the internet and runs it
Install Ouroboros
Built from the published package, never by AIclaude mcp add ouroboros -- uvx ouroboros-aiRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"ouroboros": {
"command": "uvx",
"args": [
"ouroboros-ai"
]
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"ouroboros": {
"command": "uvx",
"args": [
"ouroboros-ai"
]
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"ouroboros": {
"command": "uvx",
"args": [
"ouroboros-ai"
]
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add ouroboros -- uvx ouroboros-ai{
"mcpServers": {
"ouroboros": {
"command": "uvx",
"args": [
"ouroboros-ai"
]
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add ouroboros uvx ouroboros-aiGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the ouroboros block.
Security check
C- Downloads a script from the internet and runs itIn
README.md:irm https://raw.githubusercontent.com/Q00/ouroboros/main/scripts/install.ps1 | iex
Checked automatically: README.md. This looks for known risky patterns and is not a full audit. How grades work
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Ouroboros: common questions
How do I install Ouroboros?
In Claude Code run claude mcp add ouroboros -- uvx ouroboros-ai. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is Ouroboros the official server?
Ouroboros is a community project by Q00, not verified by a company domain.
Is Ouroboros free?
The code is published under the MIT licence. The service it connects to may have its own pricing.
Is Ouroboros safe to use?
It scores 94 of 100. Grades: maintenance A, licence A, quality A. Security check: grade C (downloads a script from the internet and runs it). Review the code before you install. How grades work.
What are alternatives to Ouroboros?
Similar MCP servers: Jitsu, Oh My Posh Validator, World Monitor, mcp.
Does Ouroboros work with ChatGPT?
Not directly. It runs locally, and ChatGPT only connects to remote servers with a URL. Use it in Claude Code, Claude Desktop, Cursor, VS Code or Codex.