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 publishes 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 14 more developer resources.

🌐 Visit website 📡 Source on GitHub
33.8/100 thin Agent 26/100 agent aware Full breakdown ↓
scored 2026-09-02 · rubric v0.18.0
1 APIs
Real EstateProperty ManagementMultifamilyResident ExperienceProptechLeasingCommunityPaymentsGraphQLMobile Apps

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-02 · rubric v0.18.0
Composite quality — 33.8/100 · thin
Contract Quality 7.9 / 21
Developer Ergonomics 3.5 / 17
Access Clarity 5.8 / 17
Operational Transparency 2.3 / 11
Contract Governance 0.5 / 10
Discoverability 5.8 / 9
Regulatory Posture 8.2 / 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 Surface 0 / 5
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.
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/venn: 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 →

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...

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

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login
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 2

Status, limits, changes, and where to get help

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)

apis.yml Raw ↑ 
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.
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 Apps
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: 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

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