whichlib MCP server

whichlib

The dependency picker for coding agents. Ask which library to use and get a scored, verified answer instead of a guess.

whichlib is an MCP server with three tools (recommendrepos, comparerepos, trending_repos) and a free dashboard, Fresh Repos, that shows the most-starred GitHub repositories created in the last day, week and month. Every repository gets a transparent 0–100 score from momentum, maintenance, adoption (stars, forks, npm and PyPI downloads) and license, plus a one-line verdict.

Quick start

Agents: see MCP server below for the one-line install.

Dashboard:

1. Clone or download this repository.
2. Double-click whichlib/dashboard/index.html.

That is all. The page is a single HTML file that calls the GitHub Search API straight from your browser. No build step, no server, no account.

Optional: paste a GitHub token under Settings on the page to raise the API limit from 10 to 30 requests per minute. A fine-grained token with no permissions is enough. It stays in your browser's local storage.

What you get

most-starred repos created in that window.

• Three tabs: Today, This week, This month. Each lists the 100

last push, language, license or name. Click again to reverse.

• Sort by any column: stars, stars per day, forks, open issues, created date,

and topics.

• Filter by language (17 languages) or by free text over name, description

still see where a repo stands.

• The rank column always shows the stars rank, so after sorting by forks you

• Results are cached in the browser for 60 minutes per tab and language.
• Light and dark themes follow your system setting.

How the numbers are defined

what the GitHub Search API supports. GitHub's own trending page ranks by stars gained in the period, which has no public API. The nightly snapshots in this repo will make that possible later.

• Trending here means "created in the period, ranked by stars". That is

files. Forks are shown as the nearest public signal.

• Downloads do not exist for repositories on GitHub, only for release

• Stars/day is stars divided by the repo's age, floored at one hour.

Score

Every repo gets a score from 0 to 100, a tier and a one-line verdict. The breakdown is always returned so a person or an agent can see why. The same file, whichlib/lib/score.js, runs in the dashboard and in Node, so the two can never disagree.

Tiers: Strong 75 and above, Solid 50, Watch 25, Avoid below 25. The names are chosen to read correctly for a six-week-old project and a six-year-old library alike. Archived repos are capped at 20 and get the verdict "Archived, avoid." A missing license is always named in the verdict.

Verdicts read like "Rising fast, 10.6k downloads/wk, pushed 2 days ago, MIT", "Gaining steadily, 145M downloads/wk, quiet for 6 months, widely used, BSD-3-CLAUSE" or "Slow growth, no push in 60 days, GPL-3.0".

Downloads

Shortened. The full README is on GitHub.