silvercar

Silvercar began as an Austin, Texas premium car-rental startup (all-silver Audi fleet) and was a Slow Ventures portfolio company. After Audi acquired it, the team pivoted the technology into Dealerware, a dealership fleet-management and courtesy/loaner-mobility SaaS platform. silvercar.com now 301-redirects to dealerware.com, and the company's public developer surface is the Dealerware Partner Integration API — a versioned (v4) REST API on a ReadMe developer hub at developer.dealerware.com covering contracts, reservations, customers, dealerships, fleets, vehicles, drivers, employees, payments, reporting, and webhooks. Authentication is OAuth 2.0 machine-to-machine (client_credentials) via Auth0, returning RS256-signed JWT bearer tokens.

silvercar publishes 1 API on the APIs.io network. Tagged areas include Company, Automotive, Car Rental, Fleet Management, and Mobility.

The silvercar catalog on APIs.io includes 1 event-driven AsyncAPI specification.

silvercar’s developer surface includes documentation, API reference, getting-started guide, authentication, support, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub

30.4/100 thin ▬ flat Agent 32/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessSelf serve

1 APIs

Company Automotive Car Rental Fleet Management Mobility Dealership Rentals Software-as-a-Service

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 30.4/100 · thin

Contract Quality 10.4 / 25

Developer Ergonomics 6.7 / 20

Access Clarity 4.2 / 20

Operational Transparency 1.5 / 13

Contract Governance 0.0 / 12

Discoverability 7.6 / 10

Agent readiness — 32/100 · agent ready

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 6 / 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 0 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

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.

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 github.com/api-evangelist/silvercar: open an issue to ask a question, or submit a pull request to add artifacts. 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.

Dealerware Partner Integration API

Versioned (mob-api-v4) REST API for Dealerware fleet-management and courtesy/loaner mobility workflows: contracts, reservations, contactless check-in, customers, drivers, employ...

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Silvercar Webhooks

ASYNCAPI

Security Posture 2

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

Silvercar Authentication

2 schemes

SECURITY

Silvercar Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Webhooks

Webhooks

Conventions

Conventions

Lifecycle

Lifecycle

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

Deprecation

Deprecation

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: silvercar
name: silvercar
description: Silvercar began as an Austin, Texas premium car-rental startup (all-silver Audi fleet) and was a Slow Ventures
  portfolio company. After Audi acquired it, the team pivoted the technology into Dealerware, a dealership fleet-management
  and courtesy/loaner-mobility SaaS platform. silvercar.com now 301-redirects to dealerware.com, and the company's public
  developer surface is the Dealerware Partner Integration API — a versioned (v4) REST API on a ReadMe developer hub at developer.dealerware.com
  covering contracts, reservations, customers, dealerships, fleets, vehicles, drivers, employees, payments, reporting, and
  webhooks. Authentication is OAuth 2.0 machine-to-machine (client_credentials) via Auth0, returning RS256-signed JWT bearer
  tokens.
url: https://raw.githubusercontent.com/api-evangelist/silvercar/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- slow-ventures
x-successor: dealerware
x-rebrand-note: Silvercar's product and engineering became Dealerware; silvercar.com 301s to dealerware.com. API artifacts
  below document the live Dealerware surface.
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  - url: https://silvercar.com
    status: 301
    note: declared website redirects to https://www.dealerware.com/ — a different registrable domain (silvercar.com -> dealerware.com),
      possible rename or acquisition (probed 2026-09-03, roadmap#169)
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Automotive
- Car Rental
- Fleet Management
- Mobility
- Dealership
- Rentals
- Software-as-a-Service
tags_raw:
- Company
- Automotive
- Car Rental
- Fleet Management
- Mobility
- Dealership
- Rental
- SaaS
image: https://files.readme.io/ce942b596bb59005caaba879dd9e42d25b4fd618aa4444310d4148fdb273781c-small-dw_darkmode.png
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- name: Dealerware Partner Integration API
  description: 'Versioned (mob-api-v4) REST API for Dealerware fleet-management and courtesy/loaner mobility workflows: contracts,
    reservations, contactless check-in, customers, drivers, employees, dealerships, fleets, vehicles, availability, payments
    and billing, reporting, and webhooks. OAuth 2.0 client-credentials (Auth0) with RS256 JWT bearer tokens.'
  humanURL: https://developer.dealerware.com/reference
  baseURL: https://api.dealerware.com
  properties:
  - type: Documentation
    url: https://developer.dealerware.com/docs
  - type: APIReference
    url: https://developer.dealerware.com/reference
  - type: GettingStarted
    url: https://developer.dealerware.com/docs/quickstart-guide
  - type: Authentication
    url: authentication/silvercar-authentication.yml
  - type: Webhooks
    url: asyncapi/silvercar-webhooks.yml
common:
- type: DomainSecurity
  url: security/silvercar-domain-security.yml
- type: Website
  url: https://silvercar.com
- type: DeveloperPortal
  url: https://developer.dealerware.com
- type: Documentation
  url: https://developer.dealerware.com/docs
- type: APIReference
  url: https://developer.dealerware.com/reference
- type: GettingStarted
  url: https://developer.dealerware.com/docs/quickstart-guide
- type: Authentication
  url: authentication/silvercar-authentication.yml
- type: Deprecation
  url: https://developer.dealerware.com/docs/deprecation-1
- type: Webhooks
  url: asyncapi/silvercar-webhooks.yml
- type: Support
  url: https://developer.dealerware.com/docs/support
- type: TermsOfService
  url: https://www.dealerware.com/terms-of-use/
- type: PrivacyPolicy
  url: https://www.dealerware.com/privacy-policy/
- type: LLMsTxt
  url: llms/silvercar-llms.txt
- type: WellKnown
  url: well-known/silvercar-well-known.yml
- type: Conventions
  url: conventions/silvercar-conventions.yml
- type: Lifecycle
  url: lifecycle/silvercar-lifecycle.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 8
  pass: local-v1

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