Venn

Venn is a multifamily resident-experience operating system for owner-operators of rental housing. Founded in 2016 and co-headquartered in New York and Tel Aviv, it merges a resident-facing mobile app, an operator dashboard and a single data layer over the resident lifecycle — leasing, onboarding, living, renewals, maintenance, payments, community programming and an AI concierge — synced with the property management system of record (Yardi, RealPage, Entrata, AppFolio). Venn runs an unversioned Apollo Federation GraphQL API at api.venn.city with anonymous introspection enabled, 320 query fields and 357 mutation fields across 468 object types, authenticated with AWS Cognito bearer tokens. It publishes no developer portal, API reference, OpenAPI or pricing; the contract is discoverable but the data and the docs are not public.

Venn is listed with 1 API on the APIs.io network. Tagged areas include Real Estate, Property Management, Multifamily, Resident Experience, and PropTech.

Venn’s developer surface includes changelog, release notes, and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

29.8/100 thin ▬ flat Agent 26/100 agent aware Front door AI 6/6 dominant Heartbeat 100/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessApproval

1 API 3 Agent Skills

Real Estate Property Management MultifamilyResident ExperiencePropTech Leasing Community Payments GraphQL Mobile App

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 29.8/100 · thin

Contract Quality 7.5 / 21

Developer Ergonomics 3.5 / 17

Access Clarity 4.7 / 17

Operational Transparency 2.0 / 11

Contract Governance 0.5 / 10

Discoverability 5.6 / 9

Regulatory Posture 4.7 / 15

Agent readiness — 26/100 · 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 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 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

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Payments 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
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

8 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 35.1 — up to +16.2 composite points
Developer Ergonomics scores 20.8 — up to +15.8 composite points
Access Clarity scores 27.6 — up to +14.5 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/venn/apis.yml: open an issue on github.com/api-evangelist/venn 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
Mobile SDK Publishers (Play SDK Index, CocoaPods, ADA certification)	distribution	9.6 (thin)	-	-

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.

GraphQL

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.

Venn Tenant GraphQL API

Venn's tenant-facing GraphQL API, served through an Apollo Federation gateway on AWS API Gateway. Anonymous introspection returns the full contract — 1,983 types, 320 query fiel...

Agent Skills 3

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

venn-book-shared-space

AGENT SKILL

venn-broadcast-to-community

AGENT SKILL

venn-list-residents

AGENT SKILL

Venn API pricing

Pricing Plans 1

Published pricing tiers and plan structures.

Venn Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Venn Rate Limits

0 limits

RATE LIMITS

Security Posture 2

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

Venn Authentication

0 schemes

SECURITY

Venn Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Venn Scopes

4 scopes

SCOPES

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Components

Components

DataModel

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

ChangeLog

ChangeLog

ReleaseNotes

ReleaseNotes

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Plans

Plans

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Listing

Listing

Source (apis.yml)

aid: venn
name: Venn
description: Venn is a multifamily resident-experience operating system for owner-operators of rental housing. Founded in
  2016 and co-headquartered in New York and Tel Aviv, it merges a resident-facing mobile app, an operator dashboard and a
  single data layer over the resident lifecycle — leasing, onboarding, living, renewals, maintenance, payments, community
  programming and an AI concierge — synced with the property management system of record (Yardi, RealPage, Entrata, AppFolio).
  Venn runs an unversioned Apollo Federation GraphQL API at api.venn.city with anonymous introspection enabled, 320 query
  fields and 357 mutation fields across 468 object types, authenticated with AWS Cognito bearer tokens. It publishes no developer
  portal, API reference, OpenAPI or pricing; the contract is discoverable but the data and the docs are not public.
accessModel:
  pricing: unknown
  onboarding: approval
  trial: false
  try_now: false
  public: false
  label: Requires approval
  confidence: medium
  source:
  - plans
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://cdn.prod.website-files.com/6914773f376e5aaadf703caa/6914773f376e5aaadf703de2_logo.svg
url: https://raw.githubusercontent.com/api-evangelist/venn/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-09-02'
modified: '2026-09-02'
tags:
- Real Estate
- Property Management
- Multifamily
- Resident Experience
- PropTech
- Leasing
- Community
- Payments
- GraphQL
- Mobile App
tags_raw:
- Real Estate
- Property Management
- Multifamily
- Resident Experience
- Proptech
- Leasing
- Community
- Payments
- GraphQL
- Mobile Apps
- Real-Estate
apis:
- name: Venn Tenant GraphQL API
  description: Venn's tenant-facing GraphQL API, served through an Apollo Federation gateway on AWS API Gateway. Anonymous
    introspection returns the full contract — 1,983 types, 320 query fields, 357 mutation fields, no subscriptions — covering
    the property graph (portfolio, community, building, unit, bedroom), residents and identity, leasing and contracts, billing
    and payments, community engagement, broadcasts and notifications, services and commerce, shared-space bookings, surveys
    and configuration. Reads and writes require a Cognito bearer token; an unauthenticated query returns VennUnknownError.
    Cursor pagination is mandatory on every list field.
  humanURL: https://docs.venn.city/
  baseURL: https://api.venn.city/production/graphql
  tags:
  - GraphQL
  - Property Management
  - Residents
  - Leasing
  - Payments
  properties:
  - type: GraphQL
    url: graphql/venn-tenant.graphql
  - type: Authentication
    url: authentication/venn-authentication.yml
  - type: OAuthScopes
    url: scopes/venn-scopes.yml
  - type: Conventions
    url: conventions/venn-conventions.yml
  - type: ErrorCatalog
    url: errors/venn-error-codes.yml
  - type: DataModel
    url: data-model/venn-data-model.yml
  - type: Conformance
    url: conformance/venn-conformance.yml
  - type: RateLimits
    url: rate-limits/venn-rate-limits.yml
  - type: Lifecycle
    url: lifecycle/venn-lifecycle.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: RateLimits
  url: rate-limits/venn-rate-limits.yml
- type: DomainSecurity
  url: security/venn-domain-security.yml
- type: Website
  url: https://venn.city/
- type: TermsOfService
  url: https://venn.city/terms
- type: PrivacyPolicy
  url: https://venn.city/privacy
- type: Login
  url: https://dashboard.venn.city/
- type: ChangeLog
  url: changelog/venn-changelog.yml
- type: ReleaseNotes
  url: https://docs.venn.city/
- type: GitHubOrganization
  url: https://github.com/venn-city
- type: Packages
  url: packages/venn-packages.yml
- type: SDKs
  url: packages/venn-packages.yml
- type: Components
  url: components/venn-components.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/venn-llms.txt
- type: Plans
  url: plans/venn-plans-pricing.yml
- type: DataModel
  url: data-model/venn-data-model.yml
- type: Listing
  url: https://forgeglobal.com/venn_stock/
x-enrichment:
  date: '2026-09-02'
  status: enriched
  artifacts_added: 22
  pass: local-v1

Venn API — frequently asked questions

Does Venn have an API?

Yes. APIs.io lists 1 API from Venn, including Venn Tenant GraphQL API.

How do I authenticate with the Venn API?

Venn documents its authentication (0 schemes). The details are profiled on APIs.io as Venn Authentication.

Is the Venn API ready for AI agents?

Venn has a Kin Score of 29.8 out of 100 (thin) and an Agent Readiness score of 25.7 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

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MCP server

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