# H-Index

> Use this tool when you need to discover and verify capabilities in the agentic economy, as it provides semantic search functionality over a registry of verified MCP server listings, solving problems of capability discovery and validation. It takes in search queries as input and outputs relevant capability listings, enabling efficient discovery of services. Ideal for use cases where trusted and verified capabilities are required.

Canonical page: https://skillsregistry.net/skills/ai-xr-utilities-h-index  
JSON: https://api.skillsregistry.net/v1/skills/ai-xr-utilities-h-index

## Description

Capability registry for the agentic economy. Semantic search over verified MCP server listings.

## Trust

- **Trust score (0–1):** 0.70
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** search
- **Updated:** 2026-05-25

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/ai.xr-utilities%2Fh-index)

## Use it

MCP endpoint published by the skill: `https://h-index.xr-utilities.ai/mcp`

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "ai-xr-utilities-h-index"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/ai-xr-utilities-h-index` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/ai-xr-utilities-h-index/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt