HappyCo

HappyCo is a PropTech company (founded 2011, San Diego) whose real-time multifamily operations platform powers property inspections, AI-led maintenance, centralized maintenance, and asset performance for nearly 4 million units globally. Its developer-facing Happy API is a high-performance gRPC API (grpc.happyco.com) exposing inspection, report, template, account, account-provisioning (Partner API), asset, and folder services, plus server-streaming event notifications and a flexible MyID/IntegrationID system. Generated client libraries are published for Ruby, Go, and Java, and the platform integrates with major property-management systems (Yardi, RealPage, Entrata, MRI, ResMan, AppFolio, Buildium).

HappyCo is listed with 1 API on the APIs.io network. Tagged areas include Company, PropTech, Real Estate, Property Management, and Inspection.

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

HappyCo’s developer surface includes documentation, API reference, support, engineering blog, pricing, signup flow, changelog, and 23 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

47.8/100 developing ▬ flat Agent 21/100 agent aware Front door AI 5/6 prominent saas Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 API 3 Agent Skills

Company PropTech Real Estate Property Management Inspection Maintenance Multifamily gRPC

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 47.8/100 · developing

Contract Quality 8.3 / 21

Developer Ergonomics 9.2 / 17

Access Clarity 10.3 / 17

Operational Transparency 4.9 / 11

Contract Governance 0.5 / 10

Discoverability 5.6 / 9

Regulatory Posture 4.4 / 15

Agent readiness — 21/100 · agent aware

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 5 / 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

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):

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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 39.0 — up to +15.3 composite points
Contract Governance scores 4.5 — up to +11.5 composite points
Developer Ergonomics scores 54.2 — up to +9.2 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/happyco/apis.yml: open an issue on github.com/api-evangelist/happyco 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
Buf Schema Registry (public Protocol Buffers modules, gRPC / ConnectRPC schema publishers)	distribution	9.6 (thin)	-	1

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.

gRPC

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

APIs 1

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

HappyCo API (Happy API)

HappyCo's gRPC API for property inspections, reports, templates, accounts, users, partner account provisioning, assets, folders, and streaming events.

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

Manage HappyCo inspections

AGENT SKILL

Provision HappyCo partner accounts

AGENT SKILL

Subscribe to HappyCo inspection & report events

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Happyco Plans Pricing

0 plans

PLANS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Happyco Finops

FINOPS

Event Specifications 1

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

Happyco Events

ASYNCAPI

Security Posture 3

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

Happyco Authentication

http-basic · 1 scheme

SECURITY

Happyco Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Happyco Trust Center

SOC 2 Type II

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

X-MCPServerCandidate

X-MCPServerCandidate

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

Lifecycle

Conformance

Webhooks

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity

Authentication

Compliance

TrustCenter

Operate 4

Status, limits, changes, and where to get help

Support

HelpCenter

ChangeLog

StatusPage

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: happyco
name: HappyCo
description: HappyCo is a PropTech company (founded 2011, San Diego) whose real-time multifamily operations platform powers
  property inspections, AI-led maintenance, centralized maintenance, and asset performance for nearly 4 million units globally.
  Its developer-facing Happy API is a high-performance gRPC API (grpc.happyco.com) exposing inspection, report, template,
  account, account-provisioning (Partner API), asset, and folder services, plus server-streaming event notifications and a
  flexible MyID/IntegrationID system. Generated client libraries are published for Ruby, Go, and Java, and the platform integrates
  with major property-management systems (Yardi, RealPage, Entrata, MRI, ResMan, AppFolio, Buildium).
url: https://raw.githubusercontent.com/api-evangelist/happyco/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
- point-nine
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: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
image: https://cdn.prod.website-files.com/6414ce4dcbfbc386d105ceb9/69a0a5421dfd02fb3bb57b77_OG-Home.avif
tags:
- Company
- PropTech
- Real Estate
- Property Management
- Inspection
- Maintenance
- Multifamily
- gRPC
tags_raw:
- Company
- PropTech
- Real Estate
- Property Management
- Inspections
- Maintenance
- Multifamily
- gRPC
- Real-Estate
apis:
- name: HappyCo API (Happy API)
  description: HappyCo's gRPC API for property inspections, reports, templates, accounts, users, partner account provisioning,
    assets, folders, and streaming events.
  humanURL: https://developer.happy.co/
  baseURL: https://grpc.happyco.com
  tags:
  - gRPC
  - Inspection
  - Property Management
  tags_raw:
  - gRPC
  - Inspections
  - Property Management
  properties:
  - type: Documentation
    url: https://developer.happy.co/
  - type: Overview
    url: https://developer.happy.co/downloads/overview.pdf
  - type: Authentication
    url: authentication/happyco-authentication.yml
  - type: Conventions
    url: conventions/happyco-conventions.yml
  - type: Webhooks
    url: asyncapi/happyco-events.yml
  - type: DataModel
    url: data-model/happyco-data-model.yml
  - type: X-MCPServerCandidate
    url: mcp/happyco-mcp.yml
    note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list
      derived from the published API contracts, not an existing server. The scorer already read the manifest and reported
      mcp_server correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/happyco-plans-pricing.yml
- type: DomainSecurity
  url: security/happyco-domain-security.yml
- type: Website
  url: https://happy.co
- type: DeveloperPortal
  url: https://developer.happy.co/
- type: Documentation
  url: https://developer.happy.co/
- type: APIReference
  url: https://developer.happy.co/downloads/overview.pdf
- type: GitHubOrganization
  url: https://github.com/happy-co
- type: Support
  url: https://support.happy.co/hc/en-us
- type: HelpCenter
  url: https://support.happy.co/hc/en-us
- type: Blog
  url: https://happy.co/resources
- type: Pricing
  url: https://happy.co/pricing
- type: SignUp
  url: https://happy.co/demo
- type: TermsOfService
  url: https://happy.co/terms-of-use
- type: PrivacyPolicy
  url: https://happy.co/master-subscription-agreement
- type: ChangeLog
  url: https://support.happy.co/hc/en-us/articles/27219606661780-Release-Updates
- type: StatusPage
  url: https://happyco.statuspage.io/
- type: LLMsTxt
  url: llms/happyco-llms.txt
- type: Packages
  url: packages/happyco-packages.yml
- type: SDKs
  url: packages/happyco-packages.yml
- type: Authentication
  url: authentication/happyco-authentication.yml
- type: Conventions
  url: conventions/happyco-conventions.yml
- type: Lifecycle
  url: lifecycle/happyco-lifecycle.yml
- type: Conformance
  url: conformance/happyco-conformance.yml
- type: Compliance
  url: https://happy.co/press/happyco-announces-soc-2-type-ii-security-certification
- type: TrustCenter
  url: security/happyco-trust-center.yml
- type: WellKnown
  url: well-known/happyco-well-known.yml
- type: X-MCPServerCandidate
  url: mcp/happyco-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: Webhooks
  url: asyncapi/happyco-events.yml
- type: DataModel
  url: data-model/happyco-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

HappyCo API — frequently asked questions

Does HappyCo have an API?

Yes. APIs.io lists 1 API from HappyCo, including HappyCo API (Happy API).

How do I authenticate with the HappyCo API?

HappyCo uses bearer-token authentication (http-basic · 1 scheme). The details are profiled on APIs.io as Happyco Authentication.

Is the HappyCo API ready for AI agents?

HappyCo has a Kin Score of 47.8 out of 100 (developing) and an Agent Readiness score of 20.7 (agent-aware), scored by API Evangelist on 2026-10-31.

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