fruux

fruux provides a cloud‑based synchronization service that unifies contacts, calendars, tasks and notes across devices and platforms for individuals and teams. It offers secure, real‑time syncing, sharing, and collaboration features, supporting iOS, Android, macOS, Windows, and web clients. The service emphasizes privacy, data ownership, and easy integration with existing productivity tools.

fruux is listed with 1 API on the APIs.io network. Tagged areas include sync, contacts, calendars, tasks, and collaboration.

fruux’s developer surface includes documentation, API reference, pricing, and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

29.3/100 thin Agent 3/100 human only Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 API

synccontactscalendarstaskscollaborationCompany

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 29.3/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 5.7 / 17

Access Clarity 13.0 / 17

Operational Transparency 1.7 / 11

Contract Governance 0.0 / 10

Discoverability 4.7 / 9

Regulatory Posture 2.1 / 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

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):

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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

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
Developer Ergonomics scores 33.3 — up to +13.3 composite points
Contract Governance scores 0.0 — up to +12.0 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/fruux/apis.yml: open an issue on github.com/api-evangelist/fruux 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 →

APIs 1

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

fruux API

fruux provides a developer portal at https://fruux.com/developers/ with documentation for integrating its synchronization service.

Pricing Plans 1

Published pricing tiers and plan structures.

Fruux Plans Pricing

3 plans

PLANS

Security Posture 1

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

Fruux Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Security

Security

DomainSecurity

DomainSecurity

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

Pricing

PrivacyPolicy

Company 2

The organization behind the API

Newsroom

Newsroom

Website

Website

Other 1

Properties that don't map to a standard resource type

Hosts

Hosts

Source (apis.yml)

aid: fruux
name: fruux
description: fruux provides a cloud‑based synchronization service that unifies contacts, calendars, tasks and notes across
  devices and platforms for individuals and teams. It offers secure, real‑time syncing, sharing, and collaboration features,
  supporting iOS, Android, macOS, Windows, and web clients. The service emphasizes privacy, data ownership, and easy integration
  with existing productivity tools.
url: https://raw.githubusercontent.com/api-evangelist/fruux/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-27 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-27'
modified: '2026-10-27'
tags:
- sync
- contacts
- calendars
- tasks
- collaboration
- Company
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/fruux-plans-pricing.yml
- type: Hosts
  url: hosts/fruux-hosts.yml
- type: SDKs
  url: packages/fruux-packages.yml
- type: Packages
  url: packages/fruux-packages.yml
- type: TermsOfService
  url: https://fruux.com/terms-of-service/
- type: Security
  url: https://fruux.com/security/
- type: Newsroom
  url: https://fruux.com/press/
- type: Login
  url: https://fruux.com/account/login/
- type: GitHubOrganization
  url: https://github.com/fruux
- type: DomainSecurity
  url: security/fruux-domain-security.yml
- type: Website
  url: https://fruux.com/
- type: DeveloperPortal
  url: https://fruux.com/developers/
- type: Documentation
  url: https://fruux.com/developers/
- type: APIReference
  url: https://fruux.com/api/
- type: Pricing
  url: https://fruux.com/pricing/
- type: PrivacyPolicy
  url: https://fruux.com/privacy/
apis:
- name: fruux API
  description: fruux provides a developer portal at https://fruux.com/developers/ with documentation for integrating its synchronization
    service.
  humanURL: https://fruux.com/developers/
  baseURL: null
  aid: fruux:fruux-api
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: The developer portal provides HTML docs but no OpenAPI or other machine‑readable contract.
  evidence:
  - url: https://fruux.com/developers/
    status: 200
  checked: '2026-10-27'
x-submission-probe: 200, 2026-10-26
x-enrichment:
  date: '2026-10-27'
  status: enriched
  artifacts_added: 11
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

fruux API — frequently asked questions

Does fruux have an API?

Yes. APIs.io lists 1 API from fruux, including fruux API.

How much does the fruux API cost?

APIs.io lists 3 pricing plans for fruux, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the fruux API ready for AI agents?

fruux has a Kin Score of 29.3 out of 100 (thin) and an Agent Readiness score of 3.1 (human-only), scored by API Evangelist on 2026-10-31.

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