Index onlineMerchant portal
Api Endpoint

api.cryptoetfsentinel.com

Crypto ETF Sentinel — Crypto ETF AUM leaderboard: top-N US spot crypto ETF issuers ranked by assets under management or another XBRL TIER1 concept, from daily-updated XBRL facts. Use when you need the largest Bitcoin, Ethereum and other crypto ETFs by fund size. Optional concept, unit, taxonomy and limit params.

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Offering

Provider
api.cryptoetfsentinel.com
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://api.cryptoetfsentinel.com/v1/xbrl/leaderboard
MIME type
application/json
First seen
2026-10-16T01:52:40.118Z
Last seen
Tags
None supplied

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.1 USDC
Atomic price: 100000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.1 USDC
Atomic price: 100000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "100000",
    "payTo": "0x169Bf49c6ee5A179190121Ab8D180B50e31683d1"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "100000",
    "payTo": "Ezzbt3d3K76pmQpwbeXkggCs5n7Q3JWG3iCmtdKdpMxk"
  }
]

Observed health

Status
Healthy
Latest latency
313 ms
Average latency
704 ms
HTTP status
402
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "concept": {
          "type": "string",
          "default": "InvestmentOwnedAtFairValue",
          "description": "XBRL TIER1 concept (e.g. InvestmentOwnedAtFairValue = AUM, NetAssetValuePerShare)."
        },
        "unit": {
          "type": "string",
          "description": "Unit filter; auto-resolved from concept if omitted."
        },
        "taxonomy": {
          "type": "string",
          "description": "Taxonomy filter; auto-resolved from concept if omitted."
        },
        "limit": {
          "type": "integer",
          "minimum": 1,
          "default": 20,
          "description": "Max results (default 20, max 50)",
          "maximum": 50
        }
      },
      "required": []
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object",
      "properties": {
        "data": {
          "description": "The endpoint payload — type varies per route"
        },
        "meta": {
          "type": "object",
          "properties": {
            "total": {
              "type": [
                "integer",
                "null"
              ]
            },
            "limit": {
              "type": [
                "integer",
                "null"
              ]
            },
            "offset": {
              "type": [
                "integer",
                "null"
              ]
            }
          }
        },
        "error": {
          "type": [
            "string",
            "null"
          ]
        }
      },
      "required": [
        "data"
      ]
    }
  },
  "required": [
    "type"
  ]
}