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.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Perfect Day the way a machine reads it — 36 machine-readable artifacts across 16 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Perfect Day scores 37.9/100 (thin), with a separate agent-readiness read of 44/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Put this on your own site. The badge is drawn live from Perfect Day's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.
<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/perfect-day/"
title="Perfect Day on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/perfect-day.svg"
alt="Perfect Day Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/perfect-day/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/perfect-day/"
title="Perfect Day on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/perfect-day/card.svg"
alt="Perfect Day Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Perfect Day
Each block below is one kind of artifact we hold for Perfect Day. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 16
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Perfect Day Categories API
WordPress REST `categories` resource on perfectday.com.
Perfect Day Comments API
WordPress REST `comments` resource on perfectday.com.
Perfect Day Leader Category API
WordPress REST `leader_category` resource on perfectday.com.
Perfect Day Media API
WordPress REST `media` resource on perfectday.com.
Perfect Day Modal API
WordPress REST `modal` resource on perfectday.com.
Perfect Day News API
WordPress REST `news` resource on perfectday.com.
Perfect Day News Category API
WordPress REST `news_category` resource on perfectday.com.
Perfect Day Pages API
WordPress REST `pages` resource on perfectday.com.
Perfect Day Posts API
WordPress REST `posts` resource on perfectday.com.
Perfect Day Search API
WordPress REST `search` resource on perfectday.com.
Perfect Day Statuses API
WordPress REST `statuses` resource on perfectday.com.
Perfect Day Success Story API
WordPress REST `success_story` resource on perfectday.com.
Perfect Day Success Story Category API
WordPress REST `success_story_category` resource on perfectday.com.
Perfect Day Tags API
WordPress REST `tags` resource on perfectday.com.
Perfect Day Taxonomies API
WordPress REST `taxonomies` resource on perfectday.com.
Perfect Day Types API
WordPress REST `types` resource on perfectday.com.
Scroll within the panel for all 16 ·
Open Collections 17
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONPerfect Day Content API () Categories API
OPEN COLLECTIONPerfect Day Content API () Comments API
OPEN COLLECTIONPerfect Day Content API () Leader Category API
OPEN COLLECTIONPerfect Day Content API () Media API
OPEN COLLECTIONPerfect Day Content API () Modal API
OPEN COLLECTIONPerfect Day Content API () News API
OPEN COLLECTIONPerfect Day Content API () News Category API
OPEN COLLECTIONPerfect Day Content API () Pages API
OPEN COLLECTIONPerfect Day Content API () Posts API
OPEN COLLECTIONPerfect Day Content API () Search API
OPEN COLLECTIONPerfect Day Content API () Statuses API
OPEN COLLECTIONPerfect Day Content API () Success Story API
OPEN COLLECTIONPerfect Day Content API () Success Story Category API
OPEN COLLECTIONPerfect Day Content API () Tags API
OPEN COLLECTIONPerfect Day Content API () Taxonomies API
OPEN COLLECTIONPerfect Day Content API () Types API
OPEN COLLECTIONScroll within the panel for all 17 ·
MCP Servers 1
Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.
Model Context Protocol servers that expose these APIs to AI agents.
perfect-day-mcp.yml
MCP SERVERSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Every other property we hold for Perfect Day — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 9
The organization behind the API
Scroll within the panel for all 9 ·
Other 3
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/perfect-day · machine-readable index on apis.io
This is an independent, third-party profile of Perfect Day, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
info@apievangelist.com
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you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.