# whichlib

> Dependency picker for coding agents: recommends, compares and scores GitHub repos with a verdict.

- name: io.github.josifb/whichlib
- version: 0.2.3
- connection class: R0 (autonomous)
- trust: 96/100
- quality: 91/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.josifb%2Fwhichlib
- tools: https://api.protogrid.dev/v1/servers/io.github.josifb%2Fwhichlib/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "whichlib": {
      "type": "http",
      "url": "https://whichlib.com/mcp",
      "headers": {
        "X-GitHub-Token": "${X_GITHUB_TOKEN}"
      }
    }
  }
}
```

Placeholders to fill: `${X_GITHUB_TOKEN}`.

## Trust

- hygiene: 100
- liveness: 98
- freshness: 100
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-96% +updated-5d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 91/100 (strong)

### protocol: 100 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- pass `protocol.list_ttl`: tool list is cacheable (ttlMs 3600000)

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 79 (weight 30)

- pass `tools.descriptions`: every tool has a description
- warn `tools.description_length`: 2 tools have descriptions over 1,024 characters, which crowds the context
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 3 of 3 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: recommend_repos (destructiveHint, idempotentHint); trending_repos (destructiveHint, idempotentHint); compare_repos (destructiveHint, idempotentHint)
- pass `tools.token_cost`: about 1,342 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: 3 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: deps.dev does not know whichlib@0.2.3

- tools: 3, about 1,342 tokens to load them all
- tool set hash: 3081d9adccd54962a7371d8ee3ae9fb6
- tools last changed: 2026-10-07T12:19:55.366Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.josifb/whichlib.svg)](https://protogrid.dev/servers/io.github.josifb/whichlib)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-07 `trending_repos` changed (inputSchema)
- 2026-10-07 `compare_repos` changed (inputSchema)
- 2026-10-07 `recommend_repos` changed (inputSchema)

Full history: https://api.protogrid.dev/v1/servers/io.github.josifb%2Fwhichlib/changes

## Dependencies

- npm whichlib@0.2.3: unknown

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0.

## Remotes

- https://whichlib.com/mcp (streamable-http, auth none, reachable true, uptime30d 0.9558824)

## Packages

- npm whichlib@0.2.3 secrets: GITHUB_TOKEN

## Tools (3)

- `compare_repos`: Compare 2-10 known GitHub repositories side by side, best score first: score and tier, stars, forks, open issues, last push, license, npm/PyPI weekly downloads (only when the registry links back to the repository) and a verdict. Each result has a 0-100 score (momentum 40% (stars gained per week; without history, lifetime stars per week scaled by the npm/PyPI download trend), maintenance 25%, adoption incl. npm/PyPI weekly downloads 25%, license 10%), a tier (Strong >=75, Solid >=50, Watch >=25, Avoid <25; New for repos under 30 days old, too new to judge), a one-line verdict and the full breakdown. Use this to choose between candidates you already have (for example zod vs valibot) or to check a dependency the project already uses; use recommend_repos to find candidates. One GitHub API call per repository plus npm/PyPI lookups. A repository that does not exist is listed under notFound and the rest are still compared; the call fails only if none can be fetched, or when GitHub's rate limit is reached or the token is rejected. Hosted: 50 free tool calls per day per user; send header X-GitHub-Token with your own GitHub token for unlimited use, or run the npm package locally (npx -y whichlib).
- `recommend_repos`: Find the best open-source library for a need before adding a dependency. Give the need in plain words and get up to `limit` GitHub repositories ranked by fit = score x relevance to the need. Each result has a 0-100 score (momentum 40% (stars gained per week; without history, lifetime stars per week scaled by the npm/PyPI download trend), maintenance 25%, adoption incl. npm/PyPI weekly downloads 25%, license 10%), a tier (Strong >=75, Solid >=50, Watch >=25, Avoid <25; New for repos under 30 days old, too new to judge), a one-line verdict and the full breakdown. Use this when you do not yet have candidates; use compare_repos when you already have names. Makes 3 GitHub searches plus npm/PyPI lookups for the shortlist. Hosted: 50 free tool calls per day per user; send header X-GitHub-Token with your own GitHub token for unlimited use, or run the npm package locally (npx -y whichlib).
- `trending_repos`: Discover projects: the most-starred GitHub repositories created in the last day, week or month, or with period "rising" repositories of any age that gained the most stars this week (like GitHub Trending; risingRank keeps that order). Optionally one language; each scored and returned sorted by score (starsRank keeps the stars order). Each result has a 0-100 score (momentum 40% (stars gained per week; without history, lifetime stars per week scaled by the npm/PyPI download trend), maintenance 25%, adoption incl. npm/PyPI weekly downloads 25%, license 10%), a tier (Strong >=75, Solid >=50, Watch >=25, Avoid <25; New for repos under 30 days old, too new to judge), a one-line verdict and the full breakdown. Not the right tool for picking a dependency, since new repositories have little maintenance history; use recommend_repos for that. One GitHub search (rising: one download of the daily list from raw.githubusercontent.com instead), plus one npm/PyPI lookup per repository when withDownloads is true. Hosted: 50 free tool calls per day per user; send header X-GitHub-Token with your own GitHub token for unlimited use, or run the npm package locally (npx -y whichlib).