SugarSync

SugarSync provides cloud file syncing, sharing, and backup services across devices, offering personal and business plans with secure storage, collaboration tools, and mobile apps. Users can store, sync, and share files, photos, and videos, with features like versioning, folder sharing, and automated backups, accessible via web, desktop, and mobile applications.

SugarSync is listed with 2 APIs on the APIs.io network. Tagged areas include Cloud Storage, File Sync, Backup, Collaboration, and Business.

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

SugarSync’s developer surface includes authentication, getting-started guide, documentation, pricing, support, and 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

27.2/100 thin Agent 18/100 agent aware Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

2 APIs

Cloud StorageFile SyncBackup Collaboration Business

Kin Score

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

Composite quality — 27.2/100 · thin

Contract Quality 5.6 / 21

Developer Ergonomics 6.5 / 17

Access Clarity 3.6 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 4.6 / 9

Regulatory Posture 3.1 / 15

Agent readiness — 18/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 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 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

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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

10 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 26.3 — up to +18.4 composite points
Access Clarity scores 21.1 — up to +15.8 composite points
Operational Transparency scores 0.0 — up to +13.0 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/sugarsync/apis.yml: open an issue on github.com/api-evangelist/sugarsync 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 2

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

SugarSync API

API for SugarSync cloud file syncing and sharing services. Documentation is available at the developer portal.

SugarSync API

SugarSync API as documented publicly: 19 operations. Contract generated from the documentation by API Evangelist (2026-10-28); not the provider's own document.

Semantic Vocabularies 1

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

Sugarsync Context

15 classes · 55 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

SugarSync API Rules

9 rules · 7 errors 1 warnings 1 info

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

GetAlbumSc566494655299318005ContentsResponse

8 properties

JSON SCHEMA

GetFileSc566494655299366025Response

15 properties

JSON SCHEMA

GetFolderSc5664945Response

7 properties

JSON SCHEMA

GetReceivedshareReceivedshareidSc575745291961610490Response

7 properties

JSON SCHEMA

GetUserUseridResponse

18 properties

JSON SCHEMA

GetWorkspaceSc566494655299317004Response

6 properties

JSON SCHEMA

Security Posture 2

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

Sugarsync Authentication

2 schemes

SECURITY

Sugarsync Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

Pricing

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: sugarsync
name: SugarSync
description: SugarSync provides cloud file syncing, sharing, and backup services across devices, offering personal and business
  plans with secure storage, collaboration tools, and mobile apps. Users can store, sync, and share files, photos, and videos,
  with features like versioning, folder sharing, and automated backups, accessible via web, desktop, and mobile applications.
url: https://raw.githubusercontent.com/api-evangelist/sugarsync/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-28 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-28'
modified: '2026-10-28'
tags:
- Cloud Storage
- File Sync
- Backup
- Collaboration
- Business
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/sugarsync-rules.yml
- type: JSONLD
  url: json-ld/sugarsync-context.jsonld
- type: Vocabulary
  url: vocabulary/sugarsync-vocabulary.yml
- type: DataModel
  url: data-model/sugarsync-data-model.yml
- type: Authentication
  url: authentication/sugarsync-authentication.yml
- type: Conformance
  url: conformance/sugarsync-conformance.yml
- type: Hosts
  url: hosts/sugarsync-hosts.yml
- type: Vendors
  url: vendors/sugarsync-vendors.yml
- type: TermsOfService
  url: https://www.sugarsync.com/terms
- type: GettingStarted
  url: https://www1.sugarsync.com/developer/getting-started
- type: DomainSecurity
  url: security/sugarsync-domain-security.yml
- type: Website
  url: https://www1.sugarsync.com/
- type: Documentation
  url: https://www1.sugarsync.com/developer
- type: Pricing
  url: https://www1.sugarsync.com/pricing/
- type: Support
  url: https://support.sugarsync.com/hc/en-us
apis:
- name: SugarSync API
  description: API for SugarSync cloud file syncing and sharing services. Documentation is available at the developer portal.
  humanURL: https://www1.sugarsync.com/developer
  aid: sugarsync:sugarsync-api-2
- aid: sugarsync:sugarsync-api
  name: SugarSync API
  description: 'SugarSync API as documented publicly: 19 operations. Contract generated from the documentation by API Evangelist
    (2026-10-28);

    not the provider''s own document.'
  humanURL: https://www1.sugarsync.com/developer/api/resources-ref
  baseURL: https://api.sugarsync.com
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/sugarsync-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/sugarsync-get-user-userid-response-schema.json
  - type: JSONSchema
    url: json-schema/sugarsync-get-file-sc566494655299366025-response-schema.json
  - type: JSONSchema
    url: json-schema/sugarsync-get-receivedshare-receivedshareid-sc575745291961610490-response-schema.json
  - type: JSONSchema
    url: json-schema/sugarsync-get-folder-sc5664945-response-schema.json
  - type: JSONSchema
    url: json-schema/sugarsync-get-album-sc566494655299318005-contents-response-schema.json
  - type: JSONSchema
    url: json-schema/sugarsync-get-workspace-sc566494655299317004-response-schema.json
x-submission-probe: 301 https://www.sugarsync.com/, 2026-10-26
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: The developer documentation provides HTML pages but no machine‑readable OpenAPI, AsyncAPI, GraphQL, gRPC or WSDL
    specifications.
  evidence:
  - url: https://www1.sugarsync.com/developer
    status: 200
  checked: '2026-10-28'
x-enrichment:
  date: '2026-10-28'
  status: enriched
  artifacts_added: 21
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

SugarSync API — frequently asked questions

Does SugarSync have an API?

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

Is there an OpenAPI specification for the SugarSync API?

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

How do I authenticate with the SugarSync API?

SugarSync uses bearer-token authentication (2 schemes). The details are profiled on APIs.io as Sugarsync Authentication.

Is the SugarSync API ready for AI agents?

SugarSync has a Kin Score of 27.2 out of 100 (thin) and an Agent Readiness score of 18.3 (agent-aware), scored by API Evangelist on 2026-10-31.

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