Roundhouse

Stock Bloc

Institutional 13F whale filings, hedge fund shifts, and audited EDGAR risk intelligence.

DataLiveeip155:8453Exactvia cdp
https://stockbloc.ai.studio/api/v1/data/sec
StocksSec13fQuantForecasting
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 20 snapshots so far.
$3.87
Verified settled volume
35 settlements proven x402 by their on-chain EIP-3009 marker.
$0.100
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 2026-10-12 00:19Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x6A6f526d8686D0c9edEfc65252e720bFa5eA5708

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.

{
  "code": "PAYMENT_REQUIRED",
  "status": "payment_required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "symbol": "USDC",
        "version": "2",
        "decimals": 6,
        "priceUsd": "$0.10"
      },
      "payTo": "0x6A6f526d8686D0c9edEfc65252e720bFa5eA5708",
      "amount": "100000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://stockbloc.ai.studio/api/v1/data/sec",
    "tags": [
      "stocks",
      "sec",
      "13f",
      "quant",
      "forecasting"
    ],
    "mimeType": "application/json",
    "description": "Institutional 13F whale filings, hedge fund shifts, and audited EDGAR risk intelligence.",
    "serviceName": "Stock Bloc"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {}
        },
        "output": {
          "type": "json",
          "example": {
            "source": "SEC EDGAR Form 13F-HR information tables",
            "status": "success",
            "parsedFunds": 13,
            "consensusHoldings": [
              {
                "name": "AMAZON COM INC",
                "symbol": "AMZN",
                "fundCount": 10,
                "totalValueUsd": 11799348566
              },
              {
                "name": "ALPHABET INC",
                "symbol": null,
                "fundCount": 6,
                "totalValueUsd": 32140052117
              },
              {
                "name": "TAIWAN SEMICONDUCTOR MANUFAC",
                "symbol": null,
                "fundCount": 6,
                "totalValueUsd": 5370050039
              }
            ],
            "totalFundsTracked": 13
          }
        }
      },
      "schema": {
        "type": "object",
        "$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"
              }
            }
          }
        }
      }
    }
  },
  "statusCode": 402,
  "x402Version": 2,
  "paymentDetails": {
    "asset": "USDC",
    "chainId": 8453,
    "network": "Base",
    "priceUsd": 0.1,
    "protocol": "x402",
    "facilitator": "Coinbase Developer Platform (CDP) Facilitator",
    "amountAtomic": "100000",
    "instructions": "Sign a USDC transferWithAuthorization (EIP-3009) or permit2 on Base (chain ID 8453) for the required amount and retry with the signed payment payload in the 'PAYMENT-SIGNATURE' header.",
    "networkCaip2": "eip155:8453",
    "priceDisplay": "$0.10",
    "facilitatorUrl": "https://api.cdp.coinbase.com/platform/v2/x402",
    "contractAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "recipientAddress": "0x6A6f526d8686D0c9edEfc65252e720bFa5eA5708"
  }
}

Accepts

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

0.1USDC≈ $0.1 USD
on Base · exact scheme

Pay 0.1 USDC on Base to 0x6A6f…A5708. The signed payment is good for 5 minutes.

Paid to
0x6A6f…A5708
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
100000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "symbol": "USDC",
      "version": "2",
      "decimals": 6,
      "priceUsd": "$0.10"
    },
    "payTo": "0x6A6f526d8686D0c9edEfc65252e720bFa5eA5708",
    "amount": "100000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {}
      },
      "output": {
        "type": "json",
        "example": {
          "source": "SEC EDGAR Form 13F-HR information tables",
          "status": "success",
          "parsedFunds": 13,
          "consensusHoldings": [
            {
              "name": "AMAZON COM INC",
              "symbol": "AMZN",
              "fundCount": 10,
              "totalValueUsd": 11799348566
            },
            {
              "name": "ALPHABET INC",
              "symbol": null,
              "fundCount": 6,
              "totalValueUsd": 32140052117
            },
            {
              "name": "TAIWAN SEMICONDUCTOR MANUFAC",
              "symbol": null,
              "fundCount": 6,
              "totalValueUsd": 5370050039
            }
          ],
          "totalFundsTracked": 13
        }
      }
    },
    "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
2026-10-12 00:19Z
Last indexed by Roundhouse
2026-10-26 17:30Z
Last enriched (probe, favicon, geo)
2026-10-12 01:16Z
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. 20 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 Stock Bloc 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=Stock%20Bloc'
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://stockbloc.ai.studio/api/v1/data/sec, 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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

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