GanttFather

GanttFather provides free online Gantt chart software for planning projects such as construction sites, software releases, marketing campaigns, and events. It offers live editing, view‑only links, templates, Excel import/export, Azure DevOps sync, and AI assistants, and is usable without creating an account.

GanttFather is listed with 2 APIs on the APIs.io network. Tagged areas include Gantt Chart, Project Management, Collaboration, Templates, and AI Assistant.

The GanttFather catalog on APIs.io includes 1 Spectral governance ruleset.

GanttFather’s developer surface includes changelog, authentication, pricing, documentation, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

32.5/100 thin Agent 42/100 agent ready Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFree

2 APIs 1 MCP Servers

Gantt Chart Project Management Collaboration Templates AI Assistant FreeSoftware

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 32.5/100 · thin

Contract Quality 2.5 / 21

Developer Ergonomics 3.6 / 17

Access Clarity 8.7 / 17

Operational Transparency 4.7 / 11

Contract Governance 2.2 / 10

Discoverability 5.7 / 9

Regulatory Posture 2.8 / 15

Agent readiness — 42/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 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 AI & Biometrics 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):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too Ask about this →

4 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 11.9 — up to +22.0 composite points Ask about this →
Developer Ergonomics scores 21.4 — up to +15.7 composite points Ask about this →
Access Clarity scores 51.1 — up to +9.8 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/ganttfather-com/apis.yml: open an issue on github.com/api-evangelist/ganttfather-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 3

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)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 2

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

GanttFather API

REST API for projects, tasks, dependencies, and resources as documented

GanttFather API

GanttFather API as documented publicly: 3 operations. Contract generated from the documentation by API Evangelist (2026-11-09); not the provider's own document.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

GanttFather MCP Server

Remote MCP server at mcp.ganttfather.com.

MCP SERVER

GanttFather API pricing

Prices published by GanttFather, read 2026-11-09 from ganttfather.com/pricing/.

Plan	Price
Free	$0 forever
Project add‑on	$5 $2.50/ month billed annually
Active editor add‑on	$2 $1/ month billed annually

Plan details, limits and sources →

Rate limits

Burst limit: 60 requests/minute per token.
Daily quota: 5,000 requests per day per token.
Per-IP fallback: 300 requests/minute per client IP

Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

GanttFather Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

GanttFather Rate Limits

3 limits

RATE LIMITS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

GanttFather API Rules

33 rules · 31 error-severity 1 warn-severity 1 info-severity

SPECTRAL

Security Posture 2

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

GanttFather Authentication

1 scheme

SECURITY

GanttFather Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

WellKnown

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

Vocabulary

Idempotency

Conventions

Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

ChangeLog

ChangeLog

ChangeLog

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

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: ganttfather-com
name: GanttFather
accessModel:
  pricing: free
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Free
  confidence: high
  probe_state: unreadable
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-13'
  method: derived
image: https://ganttfather.com/og-image.png
description: GanttFather provides free online Gantt chart software for planning projects such as construction sites, software
  releases, marketing campaigns, and events. It offers live editing, view‑only links, templates, Excel import/export, Azure
  DevOps sync, and AI assistants, and is usable without creating an account.
url: https://artifacts.apis.io/ganttfather-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-09 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-09'
modified: '2026-11-09'
tags:
- Gantt Chart
- Project Management
- Collaboration
- Templates
- AI Assistant
- FreeSoftware
tags_raw:
- Gantt chart
- Project management
- Collaboration
- Templates
- AI assistants
- Free software
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: RateLimits
  url: rate-limits/ganttfather-com-rate-limits.yml
- type: Plans
  url: plans/ganttfather-com-plans-pricing.yml
- type: Spectral
  url: rules/ganttfather-com-rules.yml
- type: Vocabulary
  url: vocabulary/ganttfather-com-vocabulary.yml
- type: ChangeLog
  url: changelog/ganttfather-com-changelog.yml
- type: Idempotency
  url: conventions/ganttfather-com-conventions.yml
- type: Conventions
  url: conventions/ganttfather-com-conventions.yml
- type: Authentication
  url: authentication/ganttfather-com-authentication.yml
- type: Conformance
  url: conformance/ganttfather-com-conformance.yml
- type: LLMsTxt
  url: llms/ganttfather-com-llms.txt
- type: MCPServer
  url: mcp/ganttfather-com-mcp.yml
- type: WellKnown
  url: well-known/ganttfather-com-well-known.yml
- type: Hosts
  url: hosts/ganttfather-com-hosts.yml
- type: Vendors
  url: vendors/ganttfather-com-vendors.yml
- type: TermsOfService
  url: https://ganttfather.com/terms/
- type: PrivacyPolicy
  url: https://ganttfather.com/privacy/
- type: Pricing
  url: https://ganttfather.com/pricing/
- type: Documentation
  url: https://ganttfather.com/docs/mcp/
- type: ChangeLog
  url: https://ganttfather.com/releases/
- type: DomainSecurity
  url: security/ganttfather-com-domain-security.yml
- type: Website
  url: https://ganttfather.com/
apis:
- name: GanttFather API
  description: REST API for projects, tasks, dependencies, and resources as documented
  humanURL: https://ganttfather.com/docs/api/
  baseURL: null
  properties: []
  aid: ganttfather-com:ganttfather-api
- aid: ganttfather-com:ganttfather-com-api
  name: GanttFather API
  description: 'GanttFather API as documented publicly: 3 operations. Contract generated from the documentation by API Evangelist
    (2026-11-09);

    not the provider''s own document.'
  humanURL: https://ganttfather.com/docs/api/pagination
  baseURL: https://api.ganttfather.com
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/ganttfather-com-openapi-generated.yml
    x-provenance: generated
x-coverage:
  state: unreadable
  reason: js-rendered-docs
  detail: API documentation page is HTML without a machine‑readable OpenAPI/GraphQL spec.
  evidence:
  - url: https://ganttfather.com/docs/api/
    status: 200
  checked: '2026-11-09'
x-enrichment:
  date: '2026-11-09'
  status: enriched
  artifacts_added: 27
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

GanttFather API — frequently asked questions

Does GanttFather have an API?

Yes. APIs.io lists 2 APIs from GanttFather, including GanttFather API and GanttFather API.

Is there an OpenAPI specification for the GanttFather API?

Yes. APIs.io indexes 1 OpenAPI specification for GanttFather, each linked for download from this page.

How do I authenticate with the GanttFather API?

GanttFather documents its authentication (1 scheme). The details are profiled on APIs.io as GanttFather Authentication.

How much does the GanttFather API cost?

GanttFather publishes its prices; its Free plan is $0 forever as of 2026-11-09. APIs.io lists 3 pricing plans for GanttFather, with each plan's price, limits and inclusions under Pricing on this page.

Does GanttFather have an MCP server?

Yes. APIs.io lists 1 MCP server for GanttFather: Remote MCP server at mcp.ganttfather.com.

Is the GanttFather API ready for AI agents?

GanttFather has a Kin Score of 32.5 out of 100 (thin) and an Agent Readiness score of 42.4 (agent-ready), scored by API Evangelist on 2026-11-13.

Work with this as data

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get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
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