Proton Drive

Proton Drive is a secure cloud storage service offered by Proton, a privacy‑focused technology company. It provides encrypted file storage, sharing, and collaboration tools, integrating with Proton’s suite of services such as Mail, VPN, Calendar, and Pass. The platform emphasizes end‑to‑end encryption, zero‑access architecture, and user‑controlled data, targeting both personal and business users who require strong privacy guarantees for their documents and media.

Proton Drive is listed with 1 API on the APIs.io network. Tagged areas include Company, Cloud Storage, Privacy, Encryption, and File Sharing.

Proton Drive’s developer surface includes CLI, documentation, support, engineering blog, pricing, signup flow, and 19 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

38.3/100 thin Agent 6/100 agent aware Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 API

Company Cloud Storage Privacy Encryption File SharingSecure Collaboration

Kin Score

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

Composite quality — 38.3/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 4.0 / 17

Access Clarity 14.3 / 17

Operational Transparency 4.1 / 11

Contract Governance 1.9 / 10

Discoverability 5.2 / 9

Regulatory Posture 5.9 / 15

Agent readiness — 6/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 5 / 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
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
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

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 0.0 — up to +25.0 composite points
Developer Ergonomics scores 23.8 — up to +15.2 composite points
Contract Governance scores 18.2 — up to +9.8 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/proton-me/apis.yml: open an issue on github.com/api-evangelist/proton-me 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.

Proton Drive API

Collaborate in real-time, share documents safely, work from any device, and keep your data yours with Proton Docs.

Pricing Plans 1

Published pricing tiers and plan structures.

Proton Me Plans Pricing

6 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Proton Me Rate Limits

0 limits

RATE LIMITS

Security Posture 3

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

Proton Me Authentication

0 schemes

SECURITY

Proton Me Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Proton Me Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Proton Me Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

CLI

CLI

GitHubOrganization

GitHubOrganization

Access & Security 6

Authentication, authorization, and security posture

SecurityTxt

SecurityTxt

TrustCenter

Security

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

StatusPage

StatusPage

Roadmap

Roadmap

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

Pricing

PrivacyPolicy

Company 3

The organization behind the API

Newsroom

Newsroom

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Leadership

Leadership

Source (apis.yml)

aid: proton-me
name: Proton Drive
description: Proton Drive is a secure cloud storage service offered by Proton, a privacy‑focused technology company. It provides
  encrypted file storage, sharing, and collaboration tools, integrating with Proton’s suite of services such as Mail, VPN,
  Calendar, and Pass. The platform emphasizes end‑to‑end encryption, zero‑access architecture, and user‑controlled data, targeting
  both personal and business users who require strong privacy guarantees for their documents and media.
url: https://artifacts.apis.io/proton-me/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:
- Company
- Cloud Storage
- Privacy
- Encryption
- File Sharing
- Secure Collaboration
image: https://proton.me/images/social/proton-og.png
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: SecurityTxt
  url: well-known/proton-me-status-security.txt
- type: Plans
  url: plans/proton-me-plans-pricing.yml
- type: CLI
  url: cli/proton-me-cli.yml
- type: Conformance
  url: conformance/proton-me-conformance.yml
- type: LLMsTxt
  url: llms/proton-me-llms.txt
- type: SecurityTxt
  url: well-known/proton-me-security.txt
- type: WellKnown
  url: well-known/proton-me-well-known.yml
- type: Hosts
  url: hosts/proton-me-hosts.yml
- type: TrustCenter
  url: https://proton.me/business/trust
- type: TermsOfService
  url: https://proton.me/legal/terms
- type: StatusPage
  url: https://status.proton.me/
- type: Security
  url: https://proton.me/mail/security
- type: Roadmap
  url: https://proton.me/drive/roadmap
- type: Newsroom
  url: https://proton.me/media
- type: Leadership
  url: https://proton.me/about/team
- type: VulnerabilityDisclosure
  url: security/proton-me-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/proton-me-domain-security.yml
- type: Website
  url: https://proton.me/
- type: Documentation
  url: https://proton.me/drive/docs
- type: Support
  url: https://proton.me/support
- type: Blog
  url: https://proton.me/blog
- type: GitHubOrganization
  url: https://github.com/ProtonMail
- type: Pricing
  url: https://proton.me/pricing
- type: SignUp
  url: https://proton.me/signup
- type: PrivacyPolicy
  url: https://proton.me/privacy
apis:
- name: Proton Drive API
  description: Collaborate in real-time, share documents safely, work from any device, and keep your data yours with Proton
    Docs.
  humanURL: https://proton.me/drive/docs
  aid: proton-me:proton-drive-api
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: Proton Drive documentation is public HTML but provides no machine‑readable OpenAPI, GraphQL, or AsyncAPI specification.
  evidence:
  - url: https://proton.me/drive/docs
    status: 200
  checked: '2026-10-28'
x-submission-probe: 200, 2026-10-26
x-enrichment:
  date: '2026-10-28'
  status: enriched
  artifacts_added: 27
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

Proton Drive API — frequently asked questions

Does Proton Drive have an API?

Yes. APIs.io lists 1 API from Proton Drive, including Proton Drive API.

How do I authenticate with the Proton Drive API?

Proton Drive documents its authentication (0 schemes). The details are profiled on APIs.io as Proton Me Authentication.

How much does the Proton Drive API cost?

APIs.io lists 6 pricing plans for Proton Drive, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the Proton Drive API ready for AI agents?

Proton Drive has a Kin Score of 38.3 out of 100 (thin) and an Agent Readiness score of 6.3 (agent-aware), scored by API Evangelist on 2026-10-31.

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