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Holiday Calendar

U.S. federal holidays with observed dates and business-day math. Example from an open-source kit.

Servidor MCP · de modernmustardseed.com

Resumo

Holiday Calendar é um servidor MCP publicado por modernmustardseed.com. Marketplaces que lemos e que o listam: 1 (Official MCP Registry). A última mudança que registramos foi em 2026-10-12. Conforme nossa passagem pelos marketplaces em 2026-10-17.

O que pede

  • Roda remotamente

Nenhum dos marketplaces que lemos publica as ferramentas ou as configurações que ele pede.

O que declara, pede e executa, por completo

Instale apenas plugins de desenvolvedores em quem você confia. Mostramos o que os marketplaces publicam e não testamos plugins.

Funciona com

  • Claude Code
  • Codex
  • Cursor
  • VS Code
  • Copilot CLI

Um link de um clique abre o cliente, que pede confirmação antes de adicionar o servidor.

Pelos marketplaces que o listam e pelo transporte MCP que declara, conforme cada cliente documenta. Não testamos plugins.

Observado pelo Ext Ops

Observado pelo Ext Ops em 2026-10-15: o que o próprio endpoint respondeu ao ser solicitado a listar suas ferramentas. Nunca chamamos as ferramentas.

Ferramentas: 5

Servidor: Holiday Calendar (example) by Modern Mustard Seed 1.0.0 · versão do protocolo MCP 2025-06-18

Metadados das ferramentas conforme a lista de 2026-10-15: anotações em 5 de 5 ferramentas · descrições em 8 de 8 parâmetros.

  • add_business_daysMove a number of U.S. business days forward or backward from a date, skipping weekends and observed federal holidays, for due dates, delivery windows and notice periods. The start date is not counted…
  • check_business_dayCheck whether a date is a U.S. business day (a weekday that is not an observed federal holiday). Returns the weekday, the holiday observed that day if any, and the business days just before and just…
  • count_business_daysCount the U.S. business days between two dates, both dates included, leaving out weekends and observed federal holidays. Returns the business day count, the weekend days, and each holiday that fell i…
  • list_federal_holidaysList the eleven U.S. federal holidays for one calendar year (2021 through 2100): each holiday's name, its actual date and weekday, the date it is observed when it falls on a weekend (Saturday moves t…
  • next_federal_holidaysFind the next one to eleven U.S. federal holidays observed on or after a date, with each one's observed date and how many calendar days away it is. Without from_date it starts from today's date in Am…

Seus marketplaces não publicam uma lista de ferramentas.

Como verificamos os endpoints

Conectar

Comandos e configurações gerados apenas a partir do que os marketplaces declaram. Não os executamos por você e não testamos plugins.

Como servidor MCP remoto

Gerado a partir do que Official MCP Registry declara.

Claude CodeTerminal
claude mcp add --transport http holiday-calendar https://starter.modernmustardseed.com/holidays
Codex~/.codex/config.toml
[mcp_servers.holiday-calendar]
url = "https://starter.modernmustardseed.com/holidays"
Cursor~/.cursor/mcp.json
{
  "mcpServers": {
    "holiday-calendar": {
      "url": "https://starter.modernmustardseed.com/holidays"
    }
  }
}

Onde está publicado

MarketplaceStatusVersãoNúmerosVerificadoVisto pela primeira vez
Official MCP Registry (Abrir o registro) Listado 1.0.1 Forks (GitHub): 0
Estrelas (GitHub): 0
Sem marcação

Cada número é do próprio marketplace e nunca é somado entre marketplaces. Um marketplace que não publica números não mostra nenhum: sem número não é zero.

O que mudou

  1. Official MCP Registry: repositório ou pacote mudou
  2. Official MCP Registry: lançou a versão 1.0.1 (antes 1.0.0)
  3. Passou a ser um produto que acompanhamos
  4. Official MCP Registry: apareceu

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Encontrados pelo significado, não por código ou repositório em comum: plugins semelhantes continuam sendo produtos distintos, e isto não é uma avaliação nem uma recomendação.

Quer esta marca no seu plugin em nosso catálogo?

Prove que o mantém com um arquivo no repositório, um arquivo no seu domínio ou um registro DNS, e você poderá mostrar esta marca na ficha, com banners ao vivo para o seu site e o README. Como funciona a verificação

Você também recebe alertas quando um marketplace o publica, o remove, muda a marca de verificado ou o que ele pede, e o endpoint remoto passa a ser monitorado como um serviço web.

Dados de Official MCP Registry. Os números vêm das nossas próprias passagens regulares pelos marketplaces, última leitura em . Não publicamos dados de contato dos editores de plugins.

De onde vêm os dados: como o catálogo é montado