Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
git clone --depth 1 https://github.com/Kenlan2022/mcp_servers_showcaseWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/rules/kenlan2022/mcp_servers_showcase/python_mcp_servers)<a href="https://agentmods.dev/rules/kenlan2022/mcp_servers_showcase/python_mcp_servers"><img src="https://agentmods.dev/badge/rules/kenlan2022/mcp_servers_showcase/python_mcp_servers/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/rules/kenlan2022/mcp_servers_showcase/python_mcp_servers"><img src="https://agentmods.dev/badge/rules/kenlan2022/mcp_servers_showcase/python_mcp_servers.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.02839 |
| Opus 5.5 | $0.00000 | $0.01136 |
| Sonnet 5.5 | $0.00000 | $0.00568 |
| Haiku 4.5 | $0.00000 | $0.00284 |
Grade A, and why
python_mcp_servers scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 491 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Python MCP Servers Development Rules
🚨 CRITICAL: Incremental Development Only
NEVER create multiple untested files in one go. Follow this strict workflow:
- Plan → Update TODO.md with specific tasks
- Implement → One component at a time
- Test → Write and run tests immediately
- Verify → Ensure it works before next step
- Document → Update progress and notes
Project Structure
mcp-servers/
├── .cursor/
│ └── rules/ # Cursor rules
├── servers/
│ ├── file-server/ # File operations server
│ └── db-server/ # Database operations server
├── shared/
│ └── common/ # Shared utilities
├── tests/ # Test suites
├── docs/ # Documentation
├── TODO.md # High-level tasks
├── TASKS.md # Detailed breakdown
└── pyproject.toml # UV project config
UV Development Setup
Initial Setup
# Initialize with UV
uv init mcp-servers
cd mcp-servers
# Add core dependencies
uv add mcp fastapi uvicorn pydantic
# Add development dependencies
uv add --dev pytest pytest-asyncio black isort mypy ruff pre-commit
# Install project in development mode
uv pip install -e .
pyproject.toml Template
[project]
name = "mcp-servers"
version = "0.1.0"
description = "Python MCP servers collection"
dependencies = [
"mcp>=0.1.0",
"fastapi>=0.104.0",
"uvicorn>=0.24.0",
"pydantic>=2.0.0",
"aiofiles>=23.0.0",
]
[project.optional-dependencies]
dev = [
"pytest>=7.0.0",
"pytest-asyncio>=0.21.0",
"black>=23.0.0",
"isort>=5.0.0",
"mypy>=1.0.0",
"ruff>=0.1.0",
"pre-commit>=3.0.0",
]
[build-system]
requires = ["hatchling"]
build-backend = "hatchling.build"
[tool.black]
line-length = 88
target-version = ['py311']
[tool.isort]
profile = "black"
line_length = 88
[tool.mypy]
python_version = "3.11"
strict = true
warn_return_any = true
warn_unused_configs = true
[tool.ruff]
line-length = 88
target-version = "py311"
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 491 lines · 0 tokens per session scan A e3b866c19ae4
python_mcp_servers is a cursor rule published in the GitHub repository Kenlan2022/mcp_servers_showcase (0 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 2,839 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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