Roundhouse AI

Hyperliquid Smart Money Data API

Where notional is entering or leaving each market over 1h/4h/24h, plus stealth accumulation: open interest climbing while price stays flat

TradingLiveeip155:8453Exactvia cdp
https://whaletape.xyz/flows
HyperliquidCryptoMarket-dataPerpsPerpetuals
Calls · 30d
12↓ 5.1%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$36.13
Verified settled volume
323 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
11
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-31 10:07Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x25a8b697Da5c0bAF698Fd6BD9701B5e825214145

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x25a8b697Da5c0bAF698Fd6BD9701B5e825214145",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://whaletape.xyz/flows",
      "description": "Where notional is entering or leaving each market over 1h/4h/24h, plus stealth accumulation: open interest climbing while price stays flat",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "x402Version": 1,
  "alternatives": [
    {
      "asset": "31566704",
      "extra": {
        "tag": "x402-global-challenge",
        "decimals": 6,
        "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
        "genesisId": "mainnet-v1.0",
        "genesisHash": "wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8="
      },
      "payTo": "ZVZV3J2VQNLTH6MNLOL5IHZECJQVXVSVAK3NNJA6FD7LLNZ5NRHQAIL2J4",
      "amount": "10000",
      "scheme": "exact",
      "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
      "maxTimeoutSeconds": 300
    }
  ]
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x25a8…14145. The signed payment is good for 5 minutes.

Paid to
0x25a8…14145
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x25a8b697Da5c0bAF698Fd6BD9701B5e825214145",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET"
      },
      "output": {
        "type": "json",
        "example": {
          "note": "flow_usd = delta(open_interest x price) over the window; educational heuristic",
          "flows": {
            "4h": [
              {
                "symbol": "XRP",
                "flow_usd": 12500000,
                "oi_change": 0.32,
                "px_change": -0.004,
                "asset_class": "crypto",
                "notional_usd": 74000000
              }
            ]
          },
          "stealth": [
            {
              "symbol": "ZEC",
              "oi_change": 0.41,
              "px_change": 0.002,
              "side_hint": "LONG",
              "stealth_score": 0.33
            }
          ],
          "updated_at": "2026-08-23T01:39:43Z"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {}
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-08-31 10:07Z
Last indexed by Roundhouse
2026-09-24 18:50Z
Last enriched (probe, favicon, geo)
2026-09-23 22:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service Hyperliquid Smart Money Data API and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Hyperliquid%20Smart%20Money%20Data%20API'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://whaletape.xyz/flows, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.