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.
npx skills add tuliosousapro/SaaS-blueprint --skill mcp-reference-serversgit clone --depth 1 https://github.com/tuliosousapro/SaaS-blueprintWrote 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/skills/tuliosousapro/saas-blueprint/mcp-reference-servers)<a href="https://agentmods.dev/skills/tuliosousapro/saas-blueprint/mcp-reference-servers"><img src="https://agentmods.dev/badge/skills/tuliosousapro/saas-blueprint/mcp-reference-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/skills/tuliosousapro/saas-blueprint/mcp-reference-servers"><img src="https://agentmods.dev/badge/skills/tuliosousapro/saas-blueprint/mcp-reference-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 | $0.00037 | $0.00365 |
| Opus 5 | $0.00018 | $0.00182 |
| Sonnet 5 | $0.00007 | $0.00073 |
| Haiku 4.5 | $0.00004 | $0.00036 |
Grade A, and why
mcp-reference-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 10d 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.
What it actually says
MCP Reference Servers Skill
When to Use
- When building new MCP servers and needing a reference implementation.
- When the user wants robust, community-tested servers for common tools (Filesystem, Google Search, Fetch, etc.).
- When debugging MCP connection issues using standardized servers.
Reference
Instructions
1. Identify Target Server
- Review the
srcdirectory in the reference repository to see available servers. - Common servers include:
fetch: For web page scraping.filesystem: For local file access.google-search: For web searching capabilities.postgres: For database interaction.
2. Implementation & Setup
- Most reference servers are built with Node.js/TypeScript or Python.
- Follow the
README.mdwithin each sub-directory for build and run instructions. - Ensure the appropriate runtime (Node.js 18+ or Python 3.10+) is installed.
3. Usage via MCP Configuration
{
"mcpServers": {
"server-name": {
"command": "npx",
"args": ["-y", "@modelcontextprotocol/server-name"],
"env": {
"ENV_VAR": "value"
}
}
}
}
Quality Gates
- Use
npxfor quick access without local installation unless performance is a concern. - Keep environment variables secure in protected configuration files.
- Verify the server's capabilities via
list_toolscommand after initialization.
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.
- 10d ago First seen · 56 lines · 37 tokens per session scan A 11fd8d3241c8
mcp-reference-servers is a skill published in the GitHub repository tuliosousapro/SaaS-blueprint (4 stars, last pushed 9d ago), licensed MIT. It adds 37 tokens to every session and 365 once invoked, about $0.0002 per session on Opus 5. 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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