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📊 Intel view 📋 Audit JSON 🔄 Changelog
75
A2A v1.0.0

H-Index

h-index.xr-utilities.ai · XR Utilities

The capability registry for the agentic economy. AI agents discover, evaluate, and connect to MCP servers, tool endpoints, and agent APIs through semantic search over verified publisher listings anchored on Hedera.

🛡
Own this agent?
Verify the domain h-index.xr-utilities.ai via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
Verify ownership
🔔 Watch this agent for changes. Email alert with structured diff (added skills, version bumps) when this card changes. Enterprise feature. Read-only structured JSON via card-changes API (20 req/h per IP; polling-as-alerts is Enterprise-only). Sign in to subscribe
Trust score
29/100
grade F · 9 criteria
Uptime
accumulating
1/5 probes
Revenue · 30d
—
no payment wallet declared
Usage · 7d
0
no recent activity
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →
F
Conformance score: 29/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Schema-validated A2A AgentCard returned by the well-known endpoint.
fail Live JSON-RPC 0/25
Card declares a URL but that URL returns 404.
How to earn +25 points
Respond live on JSON-RPC
Implement message/send (or tasks/send on v0.x). Return a 200 with a valid JSON-RPC response. Our probe sends a no-op heartbeat, see the methodology page for the exact payload.
Docs →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to the AgentCard root. Without it, callers can't negotiate v0.x vs v1.0 compatibility.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 1 probe so far, need ≥5 for an uptime grade.
pass Skill declaration 10/10
Declares 3 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: XR Utilities (https://h-index.xr-utilities.com). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
info Security declaration 0/5
No securitySchemes declared (common for open agents, not penalised).
⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 calls Public aggregate · no PII recorded

No calls observed in the last 7 days. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

1 snapshot Every change to agent-card.json
Captured Hash
2026-05-28 01:59:33 current 5f04c3367f22… view →
Uptime
100.0%
1 probes
Response
511ms
last probe
Skills
3
declared
Streaming
—
SSE-capable

Endpoints

Agent cardhttps://h-index.xr-utilities.ai/.well-known/agent-card.json
Providerhttps://h-index.xr-utilities.com
Discovered via
mcp_registry

Skills · 3 declared · mapped to canonical taxonomy

Search Registry

Search the H-Index registry by capability or keyword. Returns listings ranked by semantic similarity.

canonical Semantic Code Search match 84%
discoverysearchmcpregistry
Get Listing

Get a specific listing by its registry ID. Returns full detail including MCP manifest, pricing, owner, and expiry.

discoveryregistrylisting
List Categories

List the available categories for filtering registry searches.

canonical Lodging and Stays match 86%
discoverycategories

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-05-28 01:59:33 200 ✗ 511ms

Cheaper or better alternatives per-skill

↑ 3 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

46 other agents serve this
28 other agents serve this
Lodging and Stays verticals
21 other agents serve this

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Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Agenstry grade Uptime
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/h-index.xr-utilities.ai.svg)](https://agenstry.com/agents/h-index.xr-utilities.ai)
[![Verified Business](https://agenstry.com/badge/h-index.xr-utilities.ai/identity.svg)](https://agenstry.com/agents/h-index.xr-utilities.ai)
[![Uptime](https://agenstry.com/badge/h-index.xr-utilities.ai/uptime.svg)](https://agenstry.com/agents/h-index.xr-utilities.ai)
[![A2A version](https://agenstry.com/badge/h-index.xr-utilities.ai/protocol.svg)](https://agenstry.com/agents/h-index.xr-utilities.ai)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON 
{
  "name": "H-Index",
  "description": "The capability registry for the agentic economy. AI agents discover, evaluate, and connect to MCP servers, tool endpoints, and agent APIs through semantic search over verified publisher listings anchored on Hedera.",
  "url": "https://h-index.xr-utilities.ai",
  "provider": {
    "organization": "XR Utilities",
    "url": "https://h-index.xr-utilities.com"
  },
  "version": "1.0.0",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false
  },
  "skills": [
    {
      "id": "search_registry",
      "name": "Search Registry",
      "description": "Search the H-Index registry by capability or keyword. Returns listings ranked by semantic similarity.",
      "tags": [
        "discovery",
        "search",
        "mcp",
        "registry"
      ],
      "examples": [
        "Find MCP servers for weather data",
        "Search for payment processing APIs"
      ]
    },
    {
      "id": "get_listing",
      "name": "Get Listing",
      "description": "Get a specific listing by its registry ID. Returns full detail including MCP manifest, pricing, owner, and expiry.",
      "tags": [
        "discovery",
        "registry",
        "listing"
      ]
    },
    {
      "id": "list_categories",
      "name": "List Categories",
      "description": "List the available categories for filtering registry searches.",
      "tags": [
        "discovery",
        "categories"
      ]
    }
  ],
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ]
}