Sixt

Sixt is a global mobility services provider offering car rental, ride‑hailing, and subscription services. With a heritage spanning over a century, Sixt operates in more than 110 countries, delivering premium vehicles and flexible booking options through its website and mobile apps. The company emphasizes digital transformation, providing customers with online reservations, fleet management, and a range of mobility solutions tailored to business and leisure travelers.

Sixt is listed with 1 API on the APIs.io network. Tagged areas include Company, Mobility, Car Rental, Ride Hailing, and Subscription.

Sixt’s developer surface includes support, signup flow, documentation, and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

14.8/100 emerging ▼ -5.8 Agent 14/100 agent aware Front door AI 1/6 silent Heartbeat 60/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API

Company Mobility Car Rental Ride Hailing Subscription

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 14.8/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 2.4 / 17

Access Clarity 2.9 / 17

Operational Transparency 1.5 / 11

Contract Governance 0.0 / 10

Discoverability 4.9 / 9

Regulatory Posture 3.2 / 15

Agent readiness — 14/100 · agent aware

Machine-Readable Contract 0 / 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 0 / 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 0 / 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 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
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
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 14.3 — up to +17.1 composite points
Access Clarity scores 17.1 — up to +16.6 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/sixt/apis.yml: open an issue on github.com/api-evangelist/sixt 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Open Mobility Foundation MDS (shared micromobility, carshare, delivery robots, passenger services)	standard	17.2 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

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.

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

APIs 1

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

Sixt API

API for Sixt mobility services, providing endpoints for rentals, reservations, and fleet management.

Security Posture 2

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

Sixt Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Sixt Vulnerability Disclosure

Bugcrowd

SECURITY

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 1

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

Security

Security

VulnerabilityDisclosure

VulnerabilityDisclosure

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

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Newsroom

Newsroom

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: sixt
name: Sixt
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: unreadable
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://img.sixt.com/1200/506112ab-1eaf-40fd-b7ab-ef2dfef01cd5.jpg
description: Sixt is a global mobility services provider offering car rental, ride‑hailing, and subscription services. With
  a heritage spanning over a century, Sixt operates in more than 110 countries, delivering premium vehicles and flexible booking
  options through its website and mobile apps. The company emphasizes digital transformation, providing customers with online
  reservations, fleet management, and a range of mobility solutions tailored to business and leisure travelers.
url: https://raw.githubusercontent.com/api-evangelist/sixt/refs/heads/main/apis.yml
x-type: company
x-source: harvest:travel
x-tier: profiled
x-tier-reason: enrichment pass 2026-09-23 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-09-23'
modified: '2026-09-23'
tags:
- Company
- Mobility
- Car Rental
- Ride Hailing
- Subscription
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Security
  url: security/sixt-vulnerability-disclosure.yml
- type: WellKnown
  url: well-known/sixt-well-known.yml
- type: Hosts
  url: hosts/sixt-hosts.yml
- type: Vendors
  url: vendors/sixt-vendors.yml
- type: SDKs
  url: packages/sixt-packages.yml
- type: Packages
  url: packages/sixt-packages.yml
- type: TermsOfService
  url: https://www.sixt.com/terms-conditions/
- type: Support
  url: https://www.sixt.com/help-center/
- type: SignUp
  url: https://www.sixt.com/business/register/?register_type=signup&product_type=undefined
- type: PrivacyPolicy
  url: https://www.sixt.com/pages/privacy/
- type: Newsroom
  url: https://about.sixt.com/en/newsroom/
- type: Documentation
  url: https://developers.sixt.com/
- type: GitHubOrganization
  url: https://github.com/Sixt
- type: VulnerabilityDisclosure
  url: security/sixt-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/sixt-domain-security.yml
- type: Website
  url: https://sixt.com/
apis:
- name: Sixt API
  description: API for Sixt mobility services, providing endpoints for rentals, reservations, and fleet management.
  humanURL: https://developers.sixt.com/app/docs/
  baseURL: null
  aid: sixt:sixt-api
x-coverage:
  state: unreadable
  reason: js-rendered-docs
  detail: Developer documentation page returns empty content, likely JS-rendered without a machine-readable spec.
  evidence:
  - url: https://developers.sixt.com/app/docs/
    status: 200
  checked: 2026-09-23
x-enrichment:
  date: '2026-09-23'
  status: enriched
  artifacts_added: 9
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local

Sixt API — frequently asked questions

Does Sixt have an API?

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

Is the Sixt API ready for AI agents?

Sixt has a Kin Score of 14.8 out of 100 (emerging) and an Agent Readiness score of 14.4 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

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Every operation they expose

curl "https://apis.io/api/v1/providers/sixt/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/sixt/evidence"

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