Roundhouse AI

SEC Fundamentals API

US public companies with the strongest recent open-market insider cluster buying: purchases (transaction code P) by officers and directors, excluding funds and pre-planned 10b5-1 trades, ranked by number of distinct buyers then dollar value. A well-studied positive signal; not investment advice.

SearchLiveeip155:8453Exactvia wellknown:sec.multyplylabs.com
https://sec.multyplylabs.com/insight/insider_buying
Insider-buyingCluster-buysForm-4Smart-moneySignalsInsightsSecEdgarXbrlSec-filingsFinancialsFundamentalsFinancial-dataFinancial-statementsIncome-statementBalance-sheet
Settlements · 30d
3
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$0.72
Verified settled volume
25 settlements proven x402 by their on-chain EIP-3009 marker.
$0.150
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x37837F88A645c0a7F7947a7e92cB46fD6A343C5D

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.

0.15USDC≈ $0.15 USD
on Base · exact scheme

Pay 0.15 USDC on Base to 0x3783…43C5D.

Paid to
0x3783…43C5D
USD Coin contract
0x8335…02913
As published
150000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0x37837F88A645c0a7F7947a7e92cB46fD6A343C5D",
    "amount": "150000",
    "scheme": "exact",
    "network": "eip155:8453"
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "limit": 25,
          "months": 6,
          "min_buyers": 2
        }
      },
      "output": {
        "type": "json",
        "example": {
          "count": 25,
          "insight": "insider_buying",
          "results": [
            {
              "cik": 320193,
              "name": "Apple Inc.",
              "buyers": 3,
              "tickers": [
                "AAPL"
              ],
              "last_buy": "2026-06-15",
              "buy_value": 936600
            }
          ]
        }
      }
    },
    "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": {
                "limit": {
                  "type": "integer",
                  "default": 25,
                  "maximum": 200,
                  "minimum": 1,
                  "description": "Maximum companies to return; 1-200, outside that it is clamped."
                },
                "months": {
                  "type": "integer",
                  "default": 6,
                  "maximum": 24,
                  "minimum": 1,
                  "description": "Trailing window in months (up to 24) the buying is measured over."
                },
                "min_buyers": {
                  "type": "integer",
                  "default": 2,
                  "minimum": 1,
                  "description": "Minimum number of distinct officer/director buyers."
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
—
Last indexed by Roundhouse
2026-09-21 00:45Z
Last enriched (probe, favicon, geo)
2026-09-21 01:15Z
x402 version
2
Max timeout
—
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

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. 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 SEC Fundamentals 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=SEC%20Fundamentals%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://sec.multyplylabs.com/insight/insider_buying, 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.