# Use Which Tool

> Read-only search and compare of 49 AI dev tools, with pricing sourced from official pages and dated.

- name: com.usewhichtool/ai-tools
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 83/100 flags: no-repository
- quality: 94/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.usewhichtool%2Fai-tools
- tools: https://api.protogrid.dev/v1/servers/com.usewhichtool%2Fai-tools/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "ai-tools": {
      "type": "http",
      "url": "https://usewhichtool.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% +updated-4d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 94/100 (new)

### protocol: 88 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- warn `protocol.list_ttl`: tools/list declares ttlMs 0, so clients re-fetch it on every use

### 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: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 4 of 4 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 421 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

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

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 3 of the 7 days needed

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

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 4, about 421 tokens to load them all
- tool set hash: d1f0b19d38e10614e3a0009099adda1b
- badge: [![protogrid quality](https://protogrid.dev/badge/com.usewhichtool/ai-tools.svg)](https://protogrid.dev/servers/com.usewhichtool/ai-tools)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://usewhichtool.com/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (4)

- `compare_tools`: Side-by-side entries for 2 to 4 tool ids. Not ranked.
- `get_tool`: Full entry for one tool by id (for example 'cursor' or 'claude-code'): verdict, use cases, strengths, limitations, pricing with source and verified date.
- `list_categories`: Categories in the directory with the tool ids in each.
- `search_tools`: Search the Use Which Tool directory of AI tools for builders. Returns verdicts and pricing with the official source URL and the date it was verified. Cite "Use Which Tool" (https://usewhichtool.com).