Exchange Trading Calendar

Name: Exchange Trading Calendar
Price: 0.002 USDC
Availability: InStock

Use when an agent plans ahead and needs every closure of a stock exchange for a whole year: holiday names, half days, late openings, regular hours, count of trading days. 28 exchanges incl. NYSE, Nasdaq, LSE, Xetra, Euronext, SIX, Tokyo, HKEX, Shanghai, ASX. Official exchange calendars only; bad input or uncovered year: HTTP 400, no charge.

DataLiveeip155:8453Exactvia cdp

https://handelskalender-api.pages.dev/v1/trading-calendar

Stock-exchangeTrading-calendarMarket-hoursHolidaysNyse

Calls · 30d

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 17 snapshots so far.

$0.10

Verified settled volume

36 settlements proven x402 by their on-chain EIP-3009 marker.

$0.0020

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

Last called 2026-10-19 12:04Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0x896baBcda513322AF2218fe7346353846835f978

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": {
    "code": "payment_required",
    "message": "This endpoint costs $0.002 (USDC) per call via x402. See the PAYMENT-REQUIRED header."
  }
}

Accepts

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

0.002USDC≈ $0.002 USD

on Base · exact scheme

Pay 0.002 USDC on Base to 0x896b…5f978. The signed payment is good for 1 minute.

Paid to: 0x896b…5f978
USD Coin contract: 0x8335…02913
Payment window: 1 minute
As published: 2000 smallest units

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x896baBcda513322AF2218fe7346353846835f978",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "year": "2026",
          "exchange": "XNYS"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "year": 2026,
          "closed": [
            {
              "date": "2026-01-01",
              "name": "New Year's Day",
              "weekday": "Thursday"
            }
          ],
          "sources": [
            "https://www.nyse.com/markets/hours-calendars"
          ],
          "coverage": {
            "to": "2028-12-31",
            "from": "2026-01-01"
          },
          "exchange": {
            "mic": "XNYS",
            "name": "New York Stock Exchange",
            "country": "US",
            "timezone": "America/New_York"
          },
          "hoursNote": null,
          "tradingDays": 250,
          "regularHours": {
            "open": "09:30",
            "close": "16:00"
          },
          "specialSessions": [
            {
              "date": "2026-11-27",
              "name": "Day after Thanksgiving",
              "open": "09:30",
              "close": "13:00",
              "weekday": "Friday"
            }
          ]
        }
      }
    },
    "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",
              "required": [
                "exchange"
              ],
              "properties": {
                "year": {
                  "type": "string",
                  "description": "Year, e.g. 2026. Optional, default: current year."
                },
                "exchange": {
                  "type": "string",
                  "description": "Exchange MIC code, e.g. XNYS (NYSE), XNAS (Nasdaq), XLON (London), XETR (Xetra), XPAR (Paris), XTKS (Tokyo), XHKG (Hong Kong). Common names also work (NYSE, Xetra, LSE). Free list: GET /v1/exchanges."
                }
              },
              "additionalProperties": false
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog: 2026-10-19 12:04Z
Last indexed by Roundhouse: 2026-10-26 17:20Z
Last enriched (probe, favicon, geo): 2026-10-13 11:46Z
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. 17 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 Exchange Trading Calendar 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=Exchange%20Trading%20Calendar'
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://handelskalender-api.pages.dev/v1/trading-calendar, 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.