Cubbit
Cubbit is a European cloud storage provider offering DS3, a sovereign, geo-distributed, S3-compatible object storage platform. DS3 encrypts (AES-256), fragments, and replicates data across multiple user-selected locations using Reed-Solomon erasure coding, delivering geo-resilience and data sovereignty within Europe. It ships in two forms: DS3 Cloud, a ready-to-use managed geo-redundant object store (TBs to PBs), and DS3 Composer, self-hosted software-defined storage you run on your own hardware (200 TB+). The storage plane exposes an AWS S3-compatible API at https://s3.cubbit.eu (region eu-west-1), authenticated with access key / secret key and AWS Signature Version 4, so existing S3 SDKs, the AWS CLI, rclone, Cyberduck, Veeam and other S3 tooling work unchanged. Cubbit is certified to ISO/IEC 27001, 27017, 27018, 9001, 20000-1 and 22301, and is GDPR- and NIS2-aligned with Italian ACN PA Cloud qualification.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Cubbit the way a machine reads it — 5 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Cubbit scores 38.5/100 (thin), with a separate agent-readiness read of 17/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Cubbit
Each block below is one kind of artifact we hold for Cubbit. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 1
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Cubbit DS3 S3-Compatible API
The AWS S3-compatible object storage API for Cubbit DS3. Supports bucket create/delete/list, object upload/download/copy/delete, multipart upload, object versioning, object lock...
Security Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Cubbit Trust Center
ISO/IEC 27001:2022, ISO/IEC 27017:2015, ISO/IEC 27018:2019, ISO 9001:2015, ISO/IEC 20000-1:2018, ISO 22301:2019, ACN PA Cloud Qualification, GDPR, NIS2
SECURITYResources
Every other property we hold for Cubbit — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 4
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 6
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/cubbit · machine-readable index on apis.io