should-i-use

Name: should-i-use
Author: mrkeyoor

Token-efficient library docs MCP server.

CommunityOnlineNo sign-inGlobalFreeRead-only

What it can do

Pick Library: Given a coding task, recommend 1-3 libraries from the should-i-use index with one-line reasoning and an honest warning about the top pick. Use before installing anything.
Should I Use: Honest verdict on a specific library: 4-axis scores with reasons, when to skip it, and maintenance signals (last push, weekly downloads).
Alternatives: Curated alternatives to a library, each with a one-line "prefer it when" and a verdict if the alternative is also indexed.

What data it sees

Do you need an account

No: the server works without sign-in

Token-efficient library docs MCP server. Honest library recommendations for coding agents: what to install, what to skip, and how to use it, in 25-360 tokens per answer (hard-clamped at 500). 992 npm + PyPI libraries indexed, docs-grounded and validator-gated, top-50 install-verified. Audits your dependencies for unmaintained packages. A Context7 alternative that answers the question instead of dumping documentation — 4.8x fewer tokens in a 10-round random-sample benchmark.

How to connect

How to connect should-i-use to Claude

The server address to paste into Claude settings:

https://should-i-use--mrkeyoor.run.tools

Open Claude (claude.ai or the desktop app).
Go to Settings → Connectors.
Click Add custom connector.
Paste the server address copied below into Remote MCP server URL and click Add.
In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect should-i-use to ChatGPT

The server address to paste into ChatGPT settings:

https://should-i-use--mrkeyoor.run.tools

Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
Open Settings → Connectors and click Create.
Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect should-i-use to Cursor

The server address to paste into Cursor settings:

https://should-i-use--mrkeyoor.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (6)

Raw names from tools/list. Only developers need these.

pick_library	Given a coding task, recommend 1-3 libraries from the should-i-use index with one-line reasoning and an honest warning about the top pick. Use before installing anything.
should_i_use	Honest verdict on a specific library: 4-axis scores with reasons, when to skip it, and maintenance signals (last push, weekly downloads).
alternatives	Curated alternatives to a library, each with a one-line "prefer it when" and a verdict if the alternative is also indexed.
how_do_i	Return the 1-2 best code snippets for a task with a library, plus the gotcha for each. Snippets are correct for the indexed version. Far cheaper in tokens than a docs dump.
audit_dependencies	Audit a project's dependencies for unmaintained packages, unstable APIs, and documented reasons to switch. Pass the contents of package.json, requirements.txt, or pyproject.toml. Returns only the dependencies worth a decision, not a report on every line. Run this before working in an unfamiliar codebase.
docs_link	Official docs URL and GitHub repo for a library, one line each. Use when the clamped answers are not enough.