Date Calculator MCP

Date Calculator MCP provides a simple online tool and API for calculating the number of days between two dates, as well as adding or subtracting days, weeks, months, and years. It offers a clear interface for date arithmetic, supporting both human-friendly web usage and programmatic integration via its MCP endpoint. The service is hosted at onlinealarmkur.com and includes documentation at mcp.onlinealarmkur.com, enabling developers to incorporate date calculations into applications without handling complex calendar logic.

Date Calculator MCP is listed with 1 API on the APIs.io network. Tagged areas include Date, Calculator, MCP, Tool, and Utility.

Date Calculator MCP’s developer surface includes documentation and 5 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

5.8/100 minimal Agent 3/100 human only Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API

Date Calculator MCP Tool Utility

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 5.8/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.8 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.3 / 11

Contract Governance 0.0 / 10

Discoverability 4.9 / 9

Regulatory Posture 0.7 / 15

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Energy & Utilities regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

12 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 0.0 — up to +20.0 composite points
Developer Ergonomics scores 4.8 — up to +19.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/onlinealarmkur-com/apis.yml: open an issue on github.com/api-evangelist/onlinealarmkur-com to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Date Calculator MCP API

Provides date calculation operations via the MCP endpoint.

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Onlinealarmkur Com Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: onlinealarmkur-com
name: Date Calculator MCP
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: unreadable
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://onlinealarmkur.com/assets/icons/android-chrome-512x512.png
description: Date Calculator MCP provides a simple online tool and API for calculating the number of days between two dates,
  as well as adding or subtracting days, weeks, months, and years. It offers a clear interface for date arithmetic, supporting
  both human-friendly web usage and programmatic integration via its MCP endpoint. The service is hosted at onlinealarmkur.com
  and includes documentation at mcp.onlinealarmkur.com, enabling developers to incorporate date calculations into applications
  without handling complex calendar logic.
url: https://artifacts.apis.io/onlinealarmkur-com/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-04 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-04'
modified: '2026-11-04'
tags:
- Date
- Calculator
- MCP
- Tool
- Utility
tags_raw:
- Date
- Calculator
- API
- MCP
- Tool
- Utility
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Hosts
  url: hosts/onlinealarmkur-com-hosts.yml
- type: Vendors
  url: vendors/onlinealarmkur-com-vendors.yml
- type: GitHubOrganization
  url: https://github.com/onlinealarmkur
- type: DomainSecurity
  url: security/onlinealarmkur-com-domain-security.yml
- type: Website
  url: https://onlinealarmkur.com/date/en/
- type: Documentation
  url: https://mcp.onlinealarmkur.com/
apis:
- name: Date Calculator MCP API
  description: Provides date calculation operations via the MCP endpoint.
  humanURL: https://mcp.onlinealarmkur.com/
  aid: onlinealarmkur-com:date-calculator-mcp-api
x-submission-notes: Remote MCP, no auth; MCP Registry com.onlinealarmkur/date-calculator-mcp
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: Documentation is public but no OpenAPI, AsyncAPI, GraphQL, gRPC, or WSDL contracts were found after probing common
    spec endpoints.
  evidence:
  - url: https://onlinealarmkur.com/openapi.json
    status: 404
  - url: https://mcp.onlinealarmkur.com/openapi.json
    status: 404
  checked: '2026-11-04'
x-submitted-by: ext@ozdemir.dev (apisio-add-form, 2026-11-03)
x-enrichment:
  date: '2026-11-04'
  status: enriched
  artifacts_added: 7
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Date Calculator MCP API — frequently asked questions

Does Date Calculator MCP have an API?

Yes. APIs.io lists 1 API from Date Calculator MCP, including Date Calculator MCP API.

Is the Date Calculator MCP API ready for AI agents?

Date Calculator MCP has a Kin Score of 5.8 out of 100 (minimal) and an Agent Readiness score of 3.1 (human-only), scored by API Evangelist on 2026-11-06.

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