Roundhouse AI

FundFlow

Institutional (13F) ownership & flow for a stock (?ticker=<stock ticker>)

Tradingofflineeip155:8453Exactvia cdp
https://funds.lonestaroracle.xyz/funds
13fInstitutionalOwnershipSmart-moneyEquities
Calls · 30d
3↑ 63%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$294.77
Verified settled volume
2,723 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-16 00:38Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x52Ab53912D37759B2ad364f22dD06B16714b6C06

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": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "scheme": "exact",
      "network": "base",
      "mimeType": "",
      "resource": "https://funds.lonestaroracle.xyz/funds",
      "description": "Institutional (13F) ownership & flow for a stock (?ticker=<stock ticker>)",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "scheme": "exact",
      "network": "solana",
      "mimeType": "",
      "resource": "https://funds.lonestaroracle.xyz/funds",
      "description": "Institutional (13F) ownership & flow for a stock (?ticker=<stock ticker>)",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "x402Version": 1
}

Accepts

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

0.05USDC≈ $0.05 USD
on Base · exact scheme

Pay 0.05 USDC on Base to 0x52Ab…b6C06. The signed payment is good for 5 minutes.

Paid to
0x52Ab…b6C06
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
50000 smallest units
50000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
3nmeVj…brSgw
Token contract
EPjFWd…TDt1v
Payment window
5 minutes
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
    },
    "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
    "amount": "50000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "ticker": "NVDA"
        }
      },
      "output": {
        "type": "object",
        "format": "json",
        "example": {
          "as_of": "2026-03-31",
          "source": "yfinance (SEC 13F institutional holdings)",
          "ticker": "GME",
          "company": "GameStop Corporation",
          "flow_signal": "ACCUMULATION",
          "top_holders": [
            {
              "as_of": "2026-03-31",
              "action": "added",
              "holder": "Blackrock Inc.",
              "pct_held": 8,
              "value_usd_bn": 1.2,
              "qoq_change_pct": 1.7
            }
          ],
          "flow_summary": {
            "added": 7,
            "trimmed": 1,
            "new_unverified": 2,
            "top_holders_shown": 10
          },
          "interpretation": "Institutions leaned to accumulation last quarter — 7 of the top 10 holders added, 1 trimmed.",
          "institutions_count": 482,
          "insider_ownership_pct": 8.2,
          "institutional_ownership_pct": 37.1
        }
      }
    },
    "schema": {
      "name": "FundFlow",
      "tags": [
        "13f",
        "institutional",
        "ownership",
        "smart-money",
        "equities"
      ],
      "type": "object",
      "version": "1.0.0",
      "category": "markets",
      "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": {
                "ticker": {
                  "type": "string",
                  "example": "NVDA",
                  "description": "Stock ticker to read institutional 13F flow for (e.g. AAPL, NVDA, GME). Aliases: symbol."
                }
              }
            }
          }
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "as_of": "2026-03-31",
              "source": "yfinance (SEC 13F institutional holdings)",
              "ticker": "GME",
              "company": "GameStop Corporation",
              "flow_signal": "ACCUMULATION",
              "top_holders": [
                {
                  "as_of": "2026-03-31",
                  "action": "added",
                  "holder": "Blackrock Inc.",
                  "pct_held": 8,
                  "value_usd_bn": 1.2,
                  "qoq_change_pct": 1.7
                }
              ],
              "flow_summary": {
                "added": 7,
                "trimmed": 1,
                "new_unverified": 2,
                "top_holders_shown": 10
              },
              "interpretation": "Institutions leaned to accumulation last quarter — 7 of the top 10 holders added, 1 trimmed.",
              "institutions_count": 482,
              "insider_ownership_pct": 8.2,
              "institutional_ownership_pct": 37.1
            }
          }
        }
      },
      "description": "Institutional 13F ownership and flow made agent-callable. One x402 call takes a stock ticker and returns a flow read (ACCUMULATION / NEUTRAL / DISTRIBUTION) from how the top institutional holders changed their positions quarter-over-quarter, plus total institutional ownership percent and count, insider ownership, and the top holders each tagged added / trimmed / held / new. The 'what are the big funds doing' read a trading or research agent needs, served pay-per-call. $0.05 in USDC on Base via x402. Source: yfinance aggregation of SEC 13F filings (free/public). NOTE: 13F is filed quarterly, ~45 days after quarter-end, so this is last-quarter positioning (lagged), and it covers long US equity positions only (no shorts or derivatives). Companion to EquityScope, AnalystEdge, InsiderFlow and CapitolFlow (the smart-money cluster)."
    }
  },
  "bc_kg64bd18": {}
}

Provenance

Seen in the source catalog
2026-09-16 00:38Z
Last indexed by Roundhouse
2026-09-24 14:10Z
Last enriched (probe, favicon, geo)
2026-09-24 06:16Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 0
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 FundFlow 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=FundFlow'
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://funds.lonestaroracle.xyz/funds, 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.