Roundhouse AI

x402-filings.datalayer.workers.dev

What an institutional manager actually changed last quarter. Reads 13F-HR filings for a CIK, parses the information table, aggregates by issuer and diffs consecutive quarters into opened, closed, increased and decreased positions with dollar values and portfolio weights. The diff is the signal — a holdings snapshot on its own says nothing about intent.

DataLiveeip155:8453Exactvia cdp
https://x402-filings.datalayer.workers.dev/v1/sec/institutional-holdings
Sec13fInstitutionalHoldingsFilings
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 24 snapshots so far.
$0.61
Verified settled volume
45 settlements proven x402 by their on-chain EIP-3009 marker.
$0.030
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-17 10:43Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x917e635b83F0dd7e8172c55EC4EEbb28B734cA85

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.

Accepts

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

0.03USDC≈ $0.03 USD
on Base · exact scheme

Pay 0.03 USDC on Base to 0x917e…4cA85. The signed payment is good for 1 minute.

Paid to
0x917e…4cA85
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
30000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x917e635b83F0dd7e8172c55EC4EEbb28B734cA85",
    "amount": "30000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "cik": "0001067983",
          "quarters": 2,
          "minValueUsd": 1000000
        }
      },
      "output": {
        "type": "json",
        "example": {
          "changes": {
            "closed": [],
            "opened": [
              {
                "cusip": "30303M102",
                "value": 480000000,
                "issuer": "EXAMPLE CORP",
                "shares": 1200000
              }
            ],
            "decreased": [],
            "increased": []
          },
          "manager": {
            "cik": "0001067983",
            "name": "Berkshire Hathaway Inc"
          },
          "holdings": [
            {
              "cusip": "037833100",
              "value": 88000000000,
              "issuer": "APPLE INC",
              "shares": 300000000,
              "portfolioPercent": 31.2
            }
          ],
          "portfolio": {
            "positions": 42,
            "totalValue": 284000000000
          },
          "currentPeriod": "2026-06-30",
          "previousPeriod": "2026-03-31"
        }
      }
    },
    "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"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {
                "cik": {
                  "type": "string",
                  "examples": [
                    "0001067983"
                  ],
                  "description": "CIK of the institutional manager. Required."
                },
                "quarters": {
                  "type": "integer",
                  "examples": [
                    2
                  ],
                  "description": "How many recent quarters to read, 1-4. Default 2, which is the minimum for a diff."
                },
                "minValueUsd": {
                  "type": "integer",
                  "examples": [
                    1000000
                  ],
                  "description": "Drop positions below this dollar value. Default 0."
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-08-17 10:43Z
Last indexed by Roundhouse
2026-09-16 10:30Z
Last enriched (probe, favicon, geo)
2026-09-24 08:15Z
x402 version
2
Max timeout
60s
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. 24 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 x402-filings.datalayer.workers.dev 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=x402-filings.datalayer.workers.dev'
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://x402-filings.datalayer.workers.dev/v1/sec/institutional-holdings, 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.