DayPilot

DayPilot provides HTML5 calendar, scheduler, and Gantt chart web components for building project management, resource planning, timeline visualization, and time‑tracking applications. With over 15 years of development, the components support JavaScript, TypeScript, React, Angular, and Vue, offering features like drag‑and‑drop, hierarchical resources, real‑time updates, and export to SVG/PNG. DayPilot also offers open‑source versions under the Apache License and commercial products for enterprise needs.

DayPilot publishes 2 API contracts indexed on the APIs.io network: Discovery API and Generation API. Tagged areas include Calendar, Scheduler, Gantt Chart, UI Components, and Open Source.

The DayPilot catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

DayPilot’s developer surface includes getting-started guide, documentation, support, and 20 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

34.1/100 thin Agent 26/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 Agent Skills

Calendar SchedulerGantt ChartUI Components Open Source

Kin Score

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

Composite quality — 34.1/100 · thin

Contract Quality 10.2 / 21

Developer Ergonomics 7.6 / 17

Access Clarity 1.8 / 17

Operational Transparency 1.2 / 11

Contract Governance 2.2 / 10

Discoverability 5.3 / 9

Regulatory Posture 3.1 / 15

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 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 Horizontal (data, software, accessibility, platform) 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

7 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 10.5 — up to +17.9 composite points
Contract Quality scores 47.9 — up to +13.0 composite points
Operational Transparency scores 10.5 — up to +11.6 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/daypilot-org/apis.yml: open an issue on github.com/api-evangelist/daypilot-org 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.

OpenAPI

measured — observed by APIs.io (published)

APIs 2

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

DayPilot Discovery API

Anonymous, read-only Builder capability discovery.

DayPilot Generation API

Anonymous, stateless validation and direct project-archive generation. These POST operations deliberately grant no browser CORS permission.

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

daypilot-org-validate-and-generate-builder-archive

AGENT SKILL

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Daypilot Org Context

14 classes · 44 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

DayPilot API Rules

37 rules · 35 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

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

Daypilot Org Domain Security

TLSv1.3 · DMARC

SECURITY

Daypilot Org Vulnerability Disclosure

no policy recorded

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Daypilot Org Agentic Access

18 operations · 2 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

WellKnown

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

Access & Security 3

Authentication, authorization, and security posture

Security

Security

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

OpenSource

OpenSource

Source (apis.yml)

aid: daypilot-org
name: DayPilot
description: DayPilot provides HTML5 calendar, scheduler, and Gantt chart web components for building project management,
  resource planning, timeline visualization, and time‑tracking applications. With over 15 years of development, the components
  support JavaScript, TypeScript, React, Angular, and Vue, offering features like drag‑and‑drop, hierarchical resources, real‑time
  updates, and export to SVG/PNG. DayPilot also offers open‑source versions under the Apache License and commercial products
  for enterprise needs.
url: https://artifacts.apis.io/daypilot-org/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-05 (modular-v1; was harvest)
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.20'
created: '2026-11-05'
modified: '2026-11-05'
tags:
- Calendar
- Scheduler
- Gantt Chart
- UI Components
- Open Source
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/daypilot-org-agentic-access.yml
- type: Spectral
  url: rules/daypilot-org-rules.yml
- type: JSONLD
  url: json-ld/daypilot-org-context.jsonld
- type: Vocabulary
  url: vocabulary/daypilot-org-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/daypilot-org-data-model.yml
- type: ErrorCatalog
  url: errors/daypilot-org-problem-types.yml
- type: Conformance
  url: conformance/daypilot-org-conformance.yml
- type: LLMsTxt
  url: llms/daypilot-org-llms.txt
- type: WellKnown
  url: well-known/daypilot-org-well-known.yml
- type: Hosts
  url: hosts/daypilot-org-hosts.yml
- type: SDKs
  url: packages/daypilot-org-packages.yml
- type: Packages
  url: packages/daypilot-org-packages.yml
- type: Security
  url: https://www.daypilot.org/security/
- type: PrivacyPolicy
  url: https://www.daypilot.org/legal/privacy-policy/
- type: GettingStarted
  url: https://mcp.daypilot.org/
- type: VulnerabilityDisclosure
  url: security/daypilot-org-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/daypilot-org-domain-security.yml
- type: Website
  url: https://daypilot.org/
- type: Documentation
  url: https://doc.daypilot.org/
- type: DeveloperPortal
  url: https://www.daypilot.org/
- type: Support
  url: https://www.daypilot.org/support/
- type: OpenSource
  url: https://www.daypilot.org/open-source/
apis:
- aid: daypilot-org:daypilot-org-discovery-api
  name: DayPilot Discovery API
  description: Anonymous, read-only Builder capability discovery.
  humanURL: https://builder.daypilot.org/
  baseURL: https://builder.daypilot.org
  tags:
  - Discovery
  properties:
  - type: OpenAPI
    url: openapi/daypilot-org-discovery-api-openapi.yml
- aid: daypilot-org:daypilot-org-generation-api
  name: DayPilot Generation API
  description: Anonymous, stateless validation and direct project-archive generation. These POST operations deliberately grant
    no browser CORS permission.
  humanURL: https://builder.daypilot.org/
  baseURL: https://builder.daypilot.org
  tags:
  - Generation
  properties:
  - type: OpenAPI
    url: openapi/daypilot-org-generation-api-openapi.yml
x-enrichment:
  date: '2026-11-05'
  status: enriched
  artifacts_added: 23
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

DayPilot API — frequently asked questions

Does DayPilot have an API?

Yes. APIs.io lists 2 APIs from DayPilot, including DayPilot Discovery API and DayPilot Generation API.

Is there an OpenAPI specification for the DayPilot API?

Yes. APIs.io indexes 2 OpenAPI specifications for DayPilot, each linked for download from this page.

Is the DayPilot API ready for AI agents?

DayPilot has a Kin Score of 34.1 out of 100 (thin) and an Agent Readiness score of 25.9 (agent-aware), scored by API Evangelist on 2026-11-06.

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