Casper

Casper (Casper Sleep Inc.) is a direct-to-consumer sleep and home goods brand that sells mattresses, bedding, pillows, and sleep accessories online at casper.com and through retail partners. Its casper.com storefront runs on Shopify and exposes a modern agentic-commerce surface: a published llms.txt/agents.md with agent instructions, the Universal Commerce Protocol (UCP) merchant profile, a UCP shopping MCP endpoint for AI agents to search, cart, and check out, and Shopify Customer Account API OpenID Connect authentication. Casper was added to the API Evangelist network as a portfolio company of IVP and Slow Ventures and enriched from its live public agent/commerce surface.

Casper is profiled on the APIs.io network. Tagged areas include Company, E-Commerce, Retail, Sleep, and Mattresses.

Casper’s developer surface includes authentication and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

14.5/100 emerging ▬ flat Agent 14/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

AccessSelf serve

0 APIs 1 MCP Servers

Company E-Commerce Retail Sleep Mattresses Direct to Consumer Agentic Commerce Shopify

Kin Score

Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0

Composite quality — 14.5/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 3.6 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 5.0 / 9

Regulatory Posture 4.4 / 15

Agent readiness — 14/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 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 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 5 / 5

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/.

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/casper: 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 →

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Casper UCP shopping MCP

MCP SERVER

Security Posture 2

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

Casper Authentication

openIdConnect/oauth2 · 1 scheme

SECURITY

Casper Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Casper Scopes

4 scopes · authorizationCode

4 scopes

SCOPES

Resources

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

MCPServer

MCPServer

WellKnown

WellKnown

LLMsTxt

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conventions

Conventions

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: casper
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
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/casper.png
name: Casper
description: 'Casper (Casper Sleep Inc.) is a direct-to-consumer sleep and home goods brand that sells mattresses, bedding,
  pillows, and sleep accessories online at casper.com and through retail partners. Its casper.com storefront runs on Shopify
  and exposes a modern agentic-commerce surface: a published llms.txt/agents.md with agent instructions, the Universal Commerce
  Protocol (UCP) merchant profile, a UCP shopping MCP endpoint for AI agents to search, cart, and check out, and Shopify Customer
  Account API OpenID Connect authentication. Casper was added to the API Evangelist network as a portfolio company of IVP
  and Slow Ventures and enriched from its live public agent/commerce surface.'
url: https://raw.githubusercontent.com/api-evangelist/casper/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- ivp
- slow-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- E-Commerce
- Retail
- Sleep
- Mattresses
- Direct to Consumer
- Agentic Commerce
- Shopify
tags_raw:
- Company
- Ecommerce
- Retail
- Sleep
- Mattresses
- Direct to Consumer
- Agentic Commerce
- Shopify
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://casper.com
- type: MCPServer
  name: Casper UCP shopping MCP
  url: mcp/casper-mcp.yml
- type: WellKnown
  name: Casper .well-known discovery index
  url: well-known/casper-well-known.yml
- type: LLMsTxt
  name: Casper llms.txt agent instructions
  url: llms/casper-llms.txt
- type: Authentication
  name: Casper authentication profile
  url: authentication/casper-authentication.yml
- type: OAuthScopes
  name: Casper OAuth scopes
  url: scopes/casper-scopes.yml
- type: Conventions
  name: Casper API/commerce conventions
  url: conventions/casper-conventions.yml
- type: DomainSecurity
  name: Casper domain security posture
  url: security/casper-domain-security.yml
- type: PrivacyPolicy
  url: https://casper.com/policies/privacy-policy
- type: TermsOfService
  url: https://casper.com/policies/terms-of-service
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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