# AISkills402

> Tested AI agent skill files (SKILL.md), bought once over x402 for cents on Base. Free MCP search.

- name: com.aiskills402/mcp
- version: 1.2.0
- connection class: R0 (autonomous)
- trust: 82/100 flags: no-repository
- quality: 72/100 (needs work)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.aiskills402%2Fmcp
- tools: https://api.protogrid.dev/v1/servers/com.aiskills402%2Fmcp/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "aiskills402": {
      "type": "http",
      "url": "https://mcp.aiskills402.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 98
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-96% +updated-16d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 72/100 (needs work)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### 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: 93 (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
- warn `tools.directory_hints`: 1 of 4 tools declare all four hints; missing: search_skills (destructiveHint); list_categories (destructiveHint); get_skill (destructiveHint)
- pass `tools.token_cost`: about 772 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 25 (weight 15)

- warn `stability.changes`: 8 tool changes in 30 days
- fail `stability.rug_pull`: 2 tools kept their name but changed most of their description in 30 days; review before trusting them

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

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

- tools: 4, about 772 tokens to load them all
- tool set hash: f29315f85931796978225fc1ca45479b
- tools last changed: 2026-10-13T15:49:55.240Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.aiskills402/mcp.svg)](https://protogrid.dev/servers/com.aiskills402/mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-13 `redownload_skill` changed (title, inputSchema, outputSchema, annotations)
- 2026-10-13 `get_skill` changed (title, inputSchema, outputSchema, annotations)
- 2026-10-13 `list_categories` changed (title, outputSchema, annotations)
- 2026-10-13 `search_skills` changed (title, inputSchema, outputSchema, annotations)
- 2026-09-30 `redownload_skill` added
  - Re-download the SKILL.md file you already bought (free), using the token from your purchase receipt. Always returns the current version of the skill.
- 2026-09-30 `get_skill` changed (description) **meaning changed**
  - before: _empty_
  - after: Get one skill card (free) plus the exact x402 payment_required body for its one-time purchase of the SKILL.md file, and how_to_buy. Price is price_usd on the card. Buying is over HTTP; MCP does not take payments.
- 2026-09-30 `list_categories` added
  - List the twelve skill categories (free) with a short introduction and how many skills are listed in each. Use a slug as the category filter of search_skills.
- 2026-09-30 `search_skills` changed (description, inputSchema) **meaning changed**
  - before: _empty_
  - after: Search the tested agent skill files for sale (free). Give a plain-language query (for example: sound less like ChatGPT), or filter by category, tag or language, or combine them. With a query the results come ranked by relevance; without one you get the featured skills first. Each card has match_reason (the field that matched, or the filter), price_usd (a one-time purchase of the SKILL.md file, yours forever), what it is for, what it is not for, and how it was tested. limit is at most 24.

Full history: https://api.protogrid.dev/v1/servers/com.aiskills402%2Fmcp/changes

## Remotes

- https://mcp.aiskills402.com/mcp (streamable-http, auth none, reachable true, uptime30d 0.95614034)

## Packages

_none_

## Tools (4)

- `get_skill`: Get one skill card (free) plus the exact x402 payment_required body for its one-time purchase of the SKILL.md file, and how_to_buy. Price is price_usd on the card. Buying is over HTTP; MCP does not take payments.
- `list_categories`: List the twelve skill categories (free) with a short introduction and how many skills are listed in each. Use a slug as the category filter of search_skills.
- `redownload_skill`: Re-download the SKILL.md file you already bought (free), using the token from your purchase receipt. Always returns the current version of the skill.
- `search_skills`: Search the tested agent skill files for sale (free). Give a plain-language query (for example: sound less like ChatGPT), or filter by category, tag or language, or combine them. With a query the results come ranked by relevance; without one you get the featured skills first. Each card has match_reason (the field that matched, or the filter), price_usd (a one-time purchase of the SKILL.md file, yours forever), what it is for, what it is not for, and how it was tested. limit is at most 24.