Business Day Calendars
NYSE, Federal Reserve, TARGET2 and UK business days, holidays and T+N settlement dates.
MCP server · by business-days.quietworklabs.workers.dev
About
Business Day Calendars is an MCP server published by business-days.quietworklabs.workers.dev. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-18 and have recorded no change since. As of our marketplace pass on 2026-10-25.
What it asks for
- Runs remotely
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
A one-click link opens the client, which asks you to confirm before it adds the server.
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a remote MCP server
Built from what Official MCP Registry declares.
claude mcp add --transport http business-days https://business-days.quietworklabs.workers.dev/mcp
[mcp_servers.business-days]
url = "https://business-days.quietworklabs.workers.dev/mcp"
{
"mcpServers": {
"business-days": {
"url": "https://business-days.quietworklabs.workers.dev/mcp"
}
}
}
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 1.0.0 | No figure published | Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
- Became a product we track
- Official MCP Registry: appeared
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
Business days, holidays and settlement dates for ACH, TARGET2, Bacs, 28 exchanges and 247 countries
-
bizdays io.github.qinisolabs/bizdays
Verified business-day math for AI agents: holidays + per-country weekends, not guesses.
-
Next bank holiday for UK, Ireland, France, Germany and Spain. Free daily quota, then USDC via x402.
-
New Zealand public holidays, working-day deadlines, IRD/NZBN/bank checks, GST. Pay per call via x402
-
Reliable Australian business-day, public-holiday and deadline tools for AI agents.
-
Business-day and public-holiday math for 29 countries: add business days, days between, holidays.
-
Holidays, business days, currency, time zones, DNS/WHOIS, web page checks, geodata and text tools.
-
Public holidays for 150+ countries, business-day maths and timezone lookup
-
openworkdays io.github.SolvoHQ/openworkdays
Zero-signup business-day date-math API: add days, count days between dates, is-business-day.
-
Public Holidays & Business Days (200+ countries)
Compute deadlines in business days with public holidays (200+ countries). $0.002/call.
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
Professional financial analysis tools for the Israeli stock market (TASE).
-
AI-native UK accounting for limited companies and sole traders. Track transactions, manage VAT, monitor HMRC deadlines, log expenses, and handle invoices through natural language…
-
AI-powered geopolitical intelligence. Get real-time signals, intelligence briefs, and event impact analysis for macro trading and risk assessment.
-
Give Claude deep UK accounting knowledge. This plugin replaces the generic finance responses with regulation-aware workflows built specifically for British businesses. It covers…
-
Connect Claude and other AI agents to Merit Aktiva — Estonia's most-used accounting software — and let them handle real bookkeeping safely. Six Claude Code skills that teach…
Has a listing on Claude Code: claude-plugins-official (5)
-
Build Airwallex payment integrations in your own codebase. Generates the checkout, card-element, onboarding, and subscription-billing code for an Airwallex integration and wires…
-
Bring Airwallex's global financial infrastructure to Claude. Orchestrate actions across your account in plain language, e.g., set up invoices from a PO, onboard suppliers from…
-
Carta Investors plugin — skills for querying investor data, performance benchmarks, regulatory reporting, AGM deck generation, brand extraction, and more via the Carta MCP Server.
-
Official Bigdata.com plugin providing financial research, analytics, and intelligence tools powered by Bigdata MCP.
-
LinqAlpha financial research in Claude: guided setup for the LinqAlpha connector, capability-based source selection for fundamentals, estimates, transcripts, filings and market…
Has a listing on Claude: knowledge-work-plugins (5)
-
Price bonds, analyze yield curves, evaluate FX carry trades, value options, and build macro dashboards using LSEG financial data and analytics.
-
S&P Global - Financial data and analytics skills including company tearsheets, earnings previews, and transaction summaries
-
Bring Airwallex's global financial infrastructure to Claude. Orchestrate actions across your account in plain language, e.g., set up invoices from a PO, onboard suppliers from…
-
Carta Investors plugin — skills for querying investor data, performance benchmarks, regulatory reporting, AGM deck generation, brand extraction, and more via the Carta MCP Server.
-
Official Bigdata.com plugin providing financial research, analytics, and intelligence tools powered by Bigdata MCP.
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Public equity investing workflows for listed-company research, earnings analysis, valuation, model updates, long/short pitches, catalysts, thesis tracking, ETF/index and…
-
Connect Google Calendar for scheduling, availability, daily briefs, and event management.
-
Connect Microsoft Outlook Calendar for scheduling, daily briefs, event prep, and safe meeting changes.
-
Develop your payments integration faster with the ability to create products, prices, and payment links directly in ChatGPT. Run your business from ChatGPT with the ability to…
-
Bring operational data and context into the flow of your ChatGPT conversations. You can ask questions, create and update records, and analyze your data—all through conversation…
Has a listing on Community GitHub marketplaces (5)
-
algo-trading-data-management-global
37 algorithmic-trading skills for data management global: holiday calendars, DST and time zones, clock sync and timestamps, symbol cross-reference, corporate actions, data…
-
cn-holiday
Query Chinese public holidays, 调休, and work schedules
-
Answer economic and financial data questions with real data from FactIQ — official statistics, market data, earnings-call transcripts, executive media appearances, central-bank…
-
algo-trading-global-market-integration
44 algorithmic-trading skills for global market integration: exchange and venue APIs worldwide: CME, Eurex, HKEX, SGX, ASX, JPX, LSE, Xetra, B3, crypto venues (Binance, Coinbase…
-
Connect Norman Finance to your AI for European bookkeeping, invoices and tax workflows. Polish tools include JDG KPiR, sp. z o.o. ledgers, JPK registers, estimates and existing…
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Explore and query TimeBase streams, schemas, QQL, symbols, and server status via MCP.
-
Accept payments and grow your business. Stripe's agent plugin includes best practices, upgrade guidance, and our MCP server.
-
Query Anarlog meetings locally, or connect through OAuth to read opted-in Cloud snapshots.
-
See your local Copilot token usage by day, model, and session, and get tips to use it more efficiently.
-
Three-layer verification pipeline for AI output. Extracts claims, finds sources, and flags hallucination risks so humans can verify before acting.
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
workiq
Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.
-
workiq-productivity
WorkIQ productivity skills powered by the local WorkIQ CLI — read-only insights across email, meetings, calendar, Teams, SharePoint, projects, and people.
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
mobile-app
Build and deploy Power Apps code apps for mobile using Expo (React Native), with native device functionality and Power Platform connectors
-
Build Power Apps Canvas Apps using the Canvas Authoring MCP server.
Has a listing on Cursor: cursor/plugins (5)
Has a listing on Docker MCP Catalog (5)
-
Tools for cross-border payments, taxes, and compliance.
-
MCP server to interact with the data feeds provided by the Nasdaq Data Link. Developed by the community and maintained by Stefano Amorelli.
-
Tools for accessing the Manifold Markets online prediction market platform.
-
MCP server for Zerodha Kite Connect API - India's leading stock broker trading platform. Execute trades, manage portfolios, and access real-time market data for NSE, BSE, and…
-
HDX MCP Server provides access to humanitarian data through the Humanitarian Data Exchange (HDX) API - https://data.humdata.org/hapi. This server offers 33 specialized tools for…
Has a listing on Official MCP Registry (5)
-
Business days, holidays and settlement dates for ACH, TARGET2, Bacs, 28 exchanges and 247 countries
-
bizdays io.github.qinisolabs/bizdays
Verified business-day math for AI agents: holidays + per-country weekends, not guesses.
-
Next bank holiday for UK, Ireland, France, Germany and Spain. Free daily quota, then USDC via x402.
-
New Zealand public holidays, working-day deadlines, IRD/NZBN/bank checks, GST. Pay per call via x402
-
Reliable Australian business-day, public-holiday and deadline tools for AI agents.
Has a listing on PyPI (MCP servers) (5)
-
Australian Economic Data (ABS, RBA & APRA)
Australian economic data from the ABS, RBA, and APRA: CPI, GDP, cash rate, labour, and more.
-
Russian tax authority (FNS) counterparty checks: status, debts, blocks. Due diligence MCP.
-
akshare-one-mcp io.github.zwldarren/akshare-one-mcp
MCP server that provides access to Chinese stock market data using akshare-one
-
avenir-mcp io.github.mathbeal/avenir-mcp
Unofficial MCP server for YNAB: read-only by default, every change previewed and undoable.
-
AI-assisted Solana trading bot with 331 MCP tools across Meme, Spot, Perpetuals, and Mirror modes.
Has a listing on npm registry (MCP servers) (5)
-
NBG Rates (National Bank of Georgia)
GEL exchange rates from the National Bank of Georgia with per-unit values. Not affiliated with NBG.
-
Tapetide - Indian Stock Market MCP
55 tools for Indian stock markets — NSE & BSE quotes, screener, filings, FII/DII, options
-
Company data and KYB API for 29 countries: monitoring, financial statements, insolvency, sanctions
-
fred-mcp-server io.github.stefanoamorelli/fred-mcp-server
Federal Reserve Economic Data (FRED) MCP Server - Access all 800,000+ economic time series
-
Neutral freight reference + validation layer for AI agents: ADR, HS, UN/LOCODE, freight math
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Want this mark on your plugin in our catalog?
Prove you maintain it with a file in its repository, a file on your domain or a DNS record, and you can show this mark on the card, with live banners for your site and README. How verification works
You also get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.