H-Index

Official3 toolsLive

by xr-utilities

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

Model Context Protocol (MCP) Server: ai.xr-utilities/h-index

The ai.xr-utilities/h-index server is a capability registry for the agentic economy. It provides semantic search over verified MCP server listings. The server is identified by the slug ai-xr-utilities-h-index and exposes 3 tools.

🛠️ Key Features

Capability registry for the agentic economy
Semantic search over verified MCP server listings
3 available tools

🚀 Use Cases

Search and discover relevant MCP servers from a verified listings set
Find capabilities needed for agentic workloads using semantic matching

⚡ Developer Benefits

Use semantic search to locate MCP servers based on capability descriptions
Operate against a verified registry of MCP server listings

⚠️ Limitations

Tool count is 3, as specified; no further capabilities are described in the provided data

Captured live from the server via tools/list.

search_registry

Search the H-Index registry of MCP servers, AI agent APIs, and tool endpoints. Returns listings ranked by semantic similarity to the query.

Parameters7

query	string	required	Natural-language query matched against apiName + description.
category	string	optional	Filter to a single category.
limit	number	optional	Max results (default 10, max 50).
trust	string	optional	Trust tier filter: attested_only (owner-registered only), observed_clean (default: attested plus unflagged observed listings), or observed_any (everything, flags inline). Every result carries a trust label.
excludeFlags	string	optional	Comma-separated flags to exclude across all tiers (drift, vuln).
paid	string	optional	Filter by paid status (comma-list): paid (x402 pay-per-call), gated (account/key), open (free), unknown. Only observed listings carry this; attested read 'unknown'.
tags	string	optional	Filter by derived domain tags (comma-list, matches any), e.g. crypto,ads,ai.

Raw schema

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "Natural-language query matched against apiName + description.",
      "minLength": 1,
      "maxLength": 500
    },
    "category": {
      "type": "string",
      "enum": [
        "developer-tools",
        "data",
        "ai-models",
        "infra",
        "web",
        "security",
        "automation",
        "productivity",
        "communication",
        "commerce",
        "payments",
        "finance",
        "marketing",
        "other"
      ],
      "description": "Filter to a single category."
    },
    "limit": {
      "type": "number",
      "description": "Max results (default 10, max 50).",
      "default": 10,
      "minimum": 1,
      "maximum": 50
    },
    "trust": {
      "type": "string",
      "enum": [
        "attested_only",
        "observed_clean",
        "observed_any"
      ],
      "description": "Trust tier filter: attested_only (owner-registered only), observed_clean (default: attested plus unflagged observed listings), or observed_any (everything, flags inline). Every result carries a trust label.",
      "default": "observed_clean"
    },
    "excludeFlags": {
      "type": "string",
      "description": "Comma-separated flags to exclude across all tiers (drift, vuln)."
    },
    "paid": {
      "type": "string",
      "description": "Filter by paid status (comma-list): paid (x402 pay-per-call), gated (account/key), open (free), unknown. Only observed listings carry this; attested read 'unknown'."
    },
    "tags": {
      "type": "string",
      "description": "Filter by derived domain tags (comma-list, matches any), e.g. crypto,ads,ai."
    }
  },
  "required": [
    "query"
  ]
}

get_listing

Get a specific listing by its registry ID (e.g. '0.0.10601198/5'). Returns full detail including MCP manifest, pricing, owner, and expiry.

Parameters1

string

required

Listing ID in topic/sequence format.

Raw schema

{
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "Listing ID in topic/sequence format."
    }
  },
  "required": [
    "id"
  ]
}

list_categories

List the available categories for filtering registry searches.

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "properties": {}
}

Install

Tools (3)

search_registryget_listinglist_categories

Remote endpoint

Streamable HTTP

Hosted server - connect over the network, no local install.

url

https://h-index.xr-utilities.ai/mcp

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "h-index": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://h-index.xr-utilities.ai/mcp"
      ]
    }
  }
}

Desktop config is stdio-only; this bridges via mcp-remote. Native remote: Settings > Connectors.

Model Context Protocol (MCP) Server: ai.xr-utilities/h-index

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

search_registry

get_listing

list_categories

Install

Remote endpoint

Related servers