Perfect Day

Perfect Day is a Berkeley, California food-technology company, founded in 2014, that makes animal-free dairy proteins with precision fermentation. Rather than farming cows, Perfect Day ferments microflora carrying milk's protein-coding genes to produce ProFerm, a non-animal whey protein with no lactose, cholesterol, hormones or antibiotics, which it sells business-to-business to consumer brands making ice cream, cream cheese, milk, yogurt, protein powders and bakery products. The company is a member of the Precision Fermentation Alliance. Perfect Day publishes no product or developer API; the single machine-readable surface it operates is the WordPress REST API (wp/v2) behind perfectday.com, which exposes anonymous read access to its blog posts, newsroom items, success stories, pages, media, taxonomies and site search, plus authenticated write operations via WordPress application passwords. This profile was enriched by the API Evangelist pipeline from that live surface.

Perfect Day publishes 16 APIs on the APIs.io network, including posts API, news API, success stories API, and 13 more. Tagged areas include Company, Food Technology, Precision Fermentation, Alternative Protein, and Ingredients.

Perfect Day’s developer surface includes documentation, API reference, engineering blog, support, FAQ, authentication, and 24 more developer resources.

🌐 Visit website 📡 Source on GitHub

39.6/100 thin ▬ flat Agent 48/100 agent ready Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1

16 APIs 1 MCP Servers

CompanyFood TechnologyPrecision FermentationAlternative ProteinIngredientsSustainabilityBiotechnologyConsumer Packaged GoodsContent APIWordPress

Kin Score

Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1

Composite quality — 39.6/100 · thin

Contract Quality 16.1 / 25

Developer Ergonomics 8.6 / 20

Commercial Clarity 4.2 / 20

Operational Transparency 0.0 / 13

Governance 1.4 / 12

Discoverability 9.3 / 10

Agent readiness — 48/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/perfect-day: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 16

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

MCP Servers 1

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

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

WellKnown

MCPServer

AgentSkill

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

DataModel

Lifecycle

Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

CodeOfConduct

CodeOfConduct

ToolCrosswalk

ToolCrosswalk

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

FAQ

FAQ

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 9

The organization behind the API

Website

Blog

BlogRSS

Newsroom

Careers

LinkedIn

Twitter

Twitter

Facebook

Facebook

Instagram

Instagram

Scroll for all 9

Other 2

Properties that don't map to a standard resource type

Patents

Patents

SecondaryMarket

SecondaryMarket

Source (apis.yml)

aid: perfect-day
name: Perfect Day
description: Perfect Day is a Berkeley, California food-technology company, founded in 2014, that makes animal-free dairy
  proteins with precision fermentation. Rather than farming cows, Perfect Day ferments microflora carrying milk's protein-coding
  genes to produce ProFerm, a non-animal whey protein with no lactose, cholesterol, hormones or antibiotics, which it sells
  business-to-business to consumer brands making ice cream, cream cheese, milk, yogurt, protein powders and bakery products.
  The company is a member of the Precision Fermentation Alliance. Perfect Day publishes no product or developer API; the single
  machine-readable surface it operates is the WordPress REST API (wp/v2) behind perfectday.com, which exposes anonymous read
  access to its blog posts, newsroom items, success stories, pages, media, taxonomies and site search, plus authenticated
  write operations via WordPress application passwords. This profile was enriched by the API Evangelist pipeline from that
  live surface.
image: https://perfectday.com/wp-content/uploads/2022/01/social-share-image.jpg
url: https://raw.githubusercontent.com/api-evangelist/perfect-day/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.20'
created: '2026-08-02'
modified: '2026-08-02'
tags:
- Company
- Food Technology
- Precision Fermentation
- Alternative Protein
- Ingredients
- Sustainability
- Biotechnology
- Consumer Packaged Goods
- Content API
- WordPress
apis:
- aid: perfect-day:perfect-day-posts-api
  name: Perfect Day posts API
  description: The WordPress REST `posts` resource behind perfectday.com — 71 published blog posts, with collection, single-item,
    revision and autosave routes. Read access is anonymous; writes require a WordPress application password.
  humanURL: https://perfectday.com/wp-json/wp/v2/posts
  baseURL: https://perfectday.com/wp-json
  tags:
  - posts
  - blog
  - content
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-posts-openapi.yml
  - type: Overlay
    url: overlays/perfect-day-posts-overlay.yaml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/posts/
- aid: perfect-day:perfect-day-news-api
  name: Perfect Day news API
  description: The `news` custom post type behind the Perfect Day newsroom — 103 items covering partner launches, regulatory
    milestones and company announcements. Read access is anonymous.
  humanURL: https://perfectday.com/wp-json/wp/v2/news
  baseURL: https://perfectday.com/wp-json
  tags:
  - news
  - newsroom
  - content
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-news-openapi.yml
  - type: Overlay
    url: overlays/perfect-day-news-overlay.yaml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: perfect-day:perfect-day-success-stories-api
  name: Perfect Day success stories API
  description: The `success_story` custom post type — Perfect Day's published partner/brand case studies, classified by the
    `success_story_category` taxonomy. Read access is anonymous.
  humanURL: https://perfectday.com/wp-json/wp/v2/success_story
  baseURL: https://perfectday.com/wp-json
  tags:
  - success-stories
  - case-studies
  - content
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-success-stories-openapi.yml
  - type: Overlay
    url: overlays/perfect-day-success-stories-overlay.yaml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: perfect-day:perfect-day-pages-api
  name: Perfect Day pages API
  description: The WordPress REST `pages` resource — 59 published marketing and information pages (ProFerm, applications,
    process, impact, health, FAQs). Read access is anonymous.
  humanURL: https://perfectday.com/wp-json/wp/v2/pages
  baseURL: https://perfectday.com/wp-json
  tags:
  - pages
  - content
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-pages-openapi.yml
  - type: Overlay
    url: overlays/perfect-day-pages-overlay.yaml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/pages/
- aid: perfect-day:perfect-day-search-api
  name: Perfect Day search API
  description: The WordPress REST `search` resource — cross-content-type search across posts, pages, news and success stories
    on perfectday.com. Read access is anonymous.
  humanURL: https://perfectday.com/wp-json/wp/v2/search
  baseURL: https://perfectday.com/wp-json
  tags:
  - search
  - content
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-search-openapi.yml
  - type: Overlay
    url: overlays/perfect-day-search-overlay.yaml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/search-results/
- aid: perfect-day:perfect-day-media-api
  name: Perfect Day media API
  description: The WordPress REST `media` resource — the site's image and document library, including product photography
    and press assets. Read access is anonymous; uploads require authentication.
  humanURL: https://perfectday.com/wp-json/wp/v2/media
  baseURL: https://perfectday.com/wp-json
  tags:
  - media
  - assets
  - content
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-media-openapi.yml
  - type: Overlay
    url: overlays/perfect-day-media-overlay.yaml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/media/
- aid: perfect-day:perfect-day-categories-api
  name: Perfect Day categories API
  description: The WordPress REST `categories` taxonomy for blog posts on perfectday.com.
  humanURL: https://perfectday.com/wp-json/wp/v2/categories
  baseURL: https://perfectday.com/wp-json
  tags:
  - categories
  - taxonomy
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-categories-openapi.yml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/categories/
- aid: perfect-day:perfect-day-news-categories-api
  name: Perfect Day news categories API
  description: The `news_category` custom taxonomy that classifies Perfect Day newsroom items.
  humanURL: https://perfectday.com/wp-json/wp/v2/news_category
  baseURL: https://perfectday.com/wp-json
  tags:
  - news-categories
  - taxonomy
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-news-categories-openapi.yml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: perfect-day:perfect-day-success-story-categories-api
  name: Perfect Day success story categories API
  description: The `success_story_category` custom taxonomy that classifies Perfect Day case studies.
  humanURL: https://perfectday.com/wp-json/wp/v2/success_story_category
  baseURL: https://perfectday.com/wp-json
  tags:
  - success-story-categories
  - taxonomy
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-success-story-categories-openapi.yml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: perfect-day:perfect-day-leader-categories-api
  name: Perfect Day leader categories API
  description: The `leader_category` custom taxonomy that groups Perfect Day leadership profiles.
  humanURL: https://perfectday.com/wp-json/wp/v2/leader_category
  baseURL: https://perfectday.com/wp-json
  tags:
  - leader-categories
  - taxonomy
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-leader-categories-openapi.yml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
- aid: perfect-day:perfect-day-tags-api
  name: Perfect Day tags API
  description: The WordPress REST `tags` taxonomy on perfectday.com.
  humanURL: https://perfectday.com/wp-json/wp/v2/tags
  baseURL: https://perfectday.com/wp-json
  tags:
  - tags
  - taxonomy
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-tags-openapi.yml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/tags/
- aid: perfect-day:perfect-day-comments-api
  name: Perfect Day comments API
  description: The WordPress REST `comments` resource on perfectday.com.
  humanURL: https://perfectday.com/wp-json/wp/v2/comments
  baseURL: https://perfectday.com/wp-json
  tags:
  - comments
  - content
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-comments-openapi.yml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/comments/
- aid: perfect-day:perfect-day-taxonomies-api
  name: Perfect Day taxonomies API
  description: The WordPress REST `taxonomies` resource — enumerates the seven taxonomies registered on perfectday.com, including
    the custom news, success-story and leader taxonomies.
  humanURL: https://perfectday.com/wp-json/wp/v2/taxonomies
  baseURL: https://perfectday.com/wp-json
  tags:
  - taxonomies
  - metadata
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-taxonomies-openapi.yml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/taxonomies/
- aid: perfect-day:perfect-day-types-api
  name: Perfect Day types API
  description: The WordPress REST `types` resource — enumerates the content types registered on perfectday.com, including
    the news, success_story and modal custom post types.
  humanURL: https://perfectday.com/wp-json/wp/v2/types
  baseURL: https://perfectday.com/wp-json
  tags:
  - types
  - metadata
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-types-openapi.yml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/post-types/
- aid: perfect-day:perfect-day-statuses-api
  name: Perfect Day statuses API
  description: The WordPress REST `statuses` resource on perfectday.com.
  humanURL: https://perfectday.com/wp-json/wp/v2/statuses
  baseURL: https://perfectday.com/wp-json
  tags:
  - statuses
  - metadata
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-statuses-openapi.yml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/post-statuses/
- aid: perfect-day:perfect-day-modals-api
  name: Perfect Day modals API
  description: The `modal` custom post type used for site interstitials on perfectday.com.
  humanURL: https://perfectday.com/wp-json/wp/v2/modal
  baseURL: https://perfectday.com/wp-json
  tags:
  - modals
  - content
  properties:
  - type: OpenAPI
    url: openapi/perfect-day-modals-openapi.yml
  - type: Documentation
    url: https://perfectday.com/wp-json/
  - type: APIReference
    url: https://developer.wordpress.org/rest-api/reference/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://perfectday.com/
- type: Documentation
  url: https://perfectday.com/wp-json/
- type: APIReference
  url: https://developer.wordpress.org/rest-api/reference/
- type: Blog
  url: https://perfectday.com/blog/
- type: BlogRSS
  url: https://perfectday.com/blog/feed/
- type: Newsroom
  url: https://perfectday.com/newsroom/
- type: Support
  url: https://perfectday.com/contact-us/
- type: FAQ
  url: https://perfectday.com/faqs/
- type: TermsOfService
  url: https://perfectday.com/terms-of-use/
- type: PrivacyPolicy
  url: https://perfectday.com/privacy-policy/
- type: CodeOfConduct
  url: https://perfectday.com/codes-of-conduct-supplier-responsibility/
- type: Patents
  url: https://perfectday.com/patents/
- type: Careers
  url: https://perfectday.com/careers/
- type: LinkedIn
  url: https://www.linkedin.com/company/perfectday/
- type: Twitter
  url: https://twitter.com/perfectdayfoods
- type: Facebook
  url: https://www.facebook.com/perfectdayfoods
- type: Instagram
  url: https://www.instagram.com/perfectdayfoods/
- type: SecondaryMarket
  url: https://forgeglobal.com/perfect-day_stock/
- type: Authentication
  url: authentication/perfect-day-authentication.yml
- type: Conventions
  url: conventions/perfect-day-conventions.yml
- type: ErrorCatalog
  url: errors/perfect-day-problem-types.yml
- type: DataModel
  url: data-model/perfect-day-data-model.yml
- type: Lifecycle
  url: lifecycle/perfect-day-lifecycle.yml
- type: Conformance
  url: conformance/perfect-day-conformance.yml
- type: WellKnown
  url: well-known/perfect-day-well-known.yml
- type: MCPServer
  url: mcp/perfect-day-mcp.yml
- type: ToolCrosswalk
  url: mcp/perfect-day-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/perfect-day-llms.txt
- type: DomainSecurity
  url: security/perfect-day-domain-security.yml
x-enrichment:
  date: '2026-08-02'
  status: enriched
  artifacts_added: 39
  pass: local-v1

Perfect Day

Kin Score

APIs 16

Perfect Day posts API

Perfect Day news API

Perfect Day success stories API

Perfect Day pages API

Perfect Day search API

Perfect Day media API

Perfect Day categories API

Perfect Day news categories API

Perfect Day success story categories API

Perfect Day leader categories API

Perfect Day tags API

Perfect Day comments API

Perfect Day taxonomies API

Perfect Day types API

Perfect Day statuses API

Perfect Day modals API

MCP Servers 1

perfect-day-mcp.yml

Security Posture 2

Perfect Day Authentication

Perfect Day Domain Security

Resources