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Unified Calendar Protocol (UCP)

unifiedcalendar.orgInfrastructure

PulseGate's liveness check found it on 13 Sep 2026; it is registered on GitHub and has been in the index since 25 Jun 2026. How this is checked

Unified Calendar Protocol (UCP) is an open standard for astronomical and cultural timekeeping. It is designed to harmonize the Gregorian solar grid with Chinese, Indian, Islamic, and Buddhist timekeeping, and it presents a single timestamp that can embed multiple cultural calendars in one logical format.

Inferred · not functionally tested

Open SourceMITWebCLIAPISelf-hosted
Unified Calendar Protocol (UCP) preview
Visit unifiedcalendar.org
1star
6features
2026since

Overview

6 features

Purpose: Synchronizing and converting between different cultural and astronomical calendar systems programmatically.

Inferred · not functionally tested

Audience: developers and researchers working with calendar data

Inferred · not functionally tested

Functions: Unknown

Interfaces: API: indicated (inferred, not tested) · MCP: unknown · CLI: indicated (inferred, not tested) · Self-hosting: indicated (inferred, not tested)

Recorded constraints: pricing: open_source · license: MIT · platforms: API, CLI, WEB · deployment: browser, cli, api_only, self_hosted

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: unifiedcalendar.org · github.com. These links do not verify the individual claims.

Unified Calendar Protocol (UCP) is a Frameworks & SDKs project. Inferred · not functionally tested: It focuses on synchronizing and converting between different cultural and astronomical calendar systems programmatically. Inferred · not functionally tested: It is built as an open-source project for developers and researchers working with calendar data. Basis unknown · not verified: The project is open source (MIT). Basis unknown · not verified: Unified Calendar Protocol (UCP) is available on the web, the command line, and API, and it can be self-hosted.

Behind Unified Calendar Protocol (UCP) is Yuanyu, and it first shipped in 2026. Inferred · not functionally tested: Key capabilities include calendar conversion, multi-calendar support, and live converter.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • Calendar conversion
  • Multi-calendar support
  • Live converter
  • Node.js library
  • CLI tool
  • API access

Topics: Inferred · not functionally tested

Tags
calendar-conversionastronomical-timekeepingopen-standard

JSON profile · Text profile · Access guide

Built with & integrations

Framework
Next.js
Runs on
BrowserCLIAPI-onlySelf-hosted
Detected from
Next.js
x-nextjs-cache header · x-nextjs-prerender header · x-powered-by header

Trust & compliance

License
MIT
Public signals
HTTPSOpen SourceFree tierGitHub · ★ 1

Indexing history

What PulseGate has recorded for this listing

Nothing recorded for this listing in this window.

Frequently asked questions about Unified Calendar Protocol (UCP)

What is Unified Calendar Protocol (UCP)?
Inferred · not functionally tested: Unified Calendar Protocol (UCP) focuses on synchronizing and converting between different cultural and astronomical calendar systems programmatically. It is catalogued under Frameworks & SDKs on PulseGate.
Who is Unified Calendar Protocol (UCP) for?
Inferred · not functionally tested: Unified Calendar Protocol (UCP) is an open-source project built for developers and researchers working with calendar data.
Does Unified Calendar Protocol (UCP) have a free plan?
Basis unknown · not verified: Yes — Unified Calendar Protocol (UCP) is open source under the MIT license and free to use.
What platforms does Unified Calendar Protocol (UCP) run on?
Basis unknown · not verified: Unified Calendar Protocol (UCP) runs on the web, the command line, and API. It can also be self-hosted.
Is Unified Calendar Protocol (UCP) still active?
PulseGate's liveness check found it on 13 Sep 2026.
Who develops Unified Calendar Protocol (UCP)?
Unified Calendar Protocol (UCP) is developed by Yuanyu.
How long has Unified Calendar Protocol (UCP) been around?
Unified Calendar Protocol (UCP) first shipped in 2026.
Is Unified Calendar Protocol (UCP) open source?
Basis unknown · not verified: Yes — Unified Calendar Protocol (UCP) is open source under the MIT license, developed on GitHub.

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