Apex27

Apex27 Limited is a United Kingdom estate agency CRM vendor, founded in 2019 and headquartered in the UK, selling cloud software to sales, lettings and commercial agents for £35 per user per month. It sits in the middle of the UK residential value chain — between the agent and the portals — capturing leads, applicants, listings, viewings, valuations, offers, sales progression and tenancies, then syndicating listings out to Rightmove, Zoopla, OnTheMarket and others. Because the UK has no MLS and no cooperative listing database, that CRM seat is the only practical route a listing takes to market, and Apex27 is one of the private gatekeepers of it. Apex27 does operate two real HTTP APIs — the Apex27 CRM API at api.apex27.co.uk and a per-tenant Portal API that powers agency websites — but neither has a public developer portal. The documentation URL that Apex27's own published n8n node points at, docs.apex27.co.uk, returns 404, and every CRM endpoint returns 401 Unauthorised without a key issued inside a paid tenant. Access is customer-only, not self-serve. RESO does not apply — no RESO Web API or Data Dictionary certification exists for Apex27 or for the UK market at all, since RESO is a NAR/MLS construct with no UK counterpart. Apex27 publishes no open data; the UK's open property layer belongs to HM Land Registry and Ordnance Survey, not to the CRM vendors.

Apex27 publishes 33 APIs on the APIs.io network, including Availability API, Branches API, Call Logs API, and 30 more. Tagged areas include Real-Estate, United Kingdom, PropTech, Property Listings, and CRM.

The Apex27 catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Apex27’s developer surface includes authentication, signup flow, pricing, changelog, engineering blog, support, and 21 more developer resources.

🌐 Visit website 📡 Source on GitHub

32.3/100 thin ▬ flat Agent 22/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

2 APIs

Real-Estate United Kingdom PropTech Property Listings CRM Estate Agency Lettings Rentals Property Management Valuation Tenancy Conveyancing

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 32.3/100 · thin

Contract Quality 5.7 / 23

Developer Ergonomics 5.5 / 18

Access Clarity 8.0 / 18

Operational Transparency 2.8 / 12

Contract Governance 0.9 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 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 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

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

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/apex27: 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 33

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

Apex27 Availability API

Appointment availability for valuations and viewings.

Apex27 Branches API

Agency branches within the tenant.

Apex27 Call Logs API

Telephone activity recorded against a contact.

Apex27 Client Portal API

Client-portal authentication and sign-in links.

Apex27 Completions API

Sales completions and progression.

Apex27 Contact Orders API

Orders placed against a contact.

Apex27 Contact Referrals API

Referrals raised against a contact (conveyancing, mortgage, survey).

Apex27 Contacts API

Applicants, vendors, landlords, tenants and buyers held in the CRM.

Apex27 Documents API

Documents attached to listings or contacts.

Apex27 Enquiries API

Website enquiries and valuation requests.

Apex27 Favourites API

Saved listings for a portal contact.

Apex27 Global Search API

Cross-entity search.

Apex27 Inspections API

Property inspections (lettings management).

Apex27 Leads API

Inbound leads and their pipeline status.

Apex27 Listing Issues API

Maintenance issues raised against a listing.

Apex27 Listing Keys API

Key sets held for a listing, including check-out and check-in.

Apex27 Listing Links API

Virtual tours, videos, EPC reports and brochure links on a listing.

Apex27 Listing Media API

Images, EPCs, floorplans, brochures and videos on a listing.

Apex27 Listing Rooms API

Room-by-room detail on a listing.

Apex27 Listing Searches API

Saved applicant listing searches used for matching and alerts.

Apex27 Listings API

Sales, lettings, land and commercial property records.

Apex27 Notes API

Free-text notes attached to a contact or a listing.

Apex27 Notifications API

In-app notifications to users, branches, listings or contacts.

Apex27 Offers API

Offers made against listings.

Apex27 Onboarding Checks API

Compliance and onboarding checklists on a listing.

Apex27 Search Regions API

Named geographic search regions.

Apex27 Statistics API

Portal inventory statistics.

Apex27 Tasks API

Work items assigned to users.

Apex27 Tenancies API

Tenancy agreements and their lifecycle.

Apex27 Users API

CRM users within the tenant.

Apex27 Valuations API

Market appraisals and valuation appointments.

Apex27 Viewings API

Viewing appointments.

Apex27 Webhooks API

Webhook subscription management.

Scroll for all 33

Open Collections 2

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Apex27 CRM API

OPEN COLLECTION

Apex27 Portal API

OPEN COLLECTION

Event Specifications 1

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

Apex27 Webhooks

ASYNCAPI

Security Posture 2

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

Apex27 Authentication

apiKey · 2 schemes

SECURITY

Apex27 Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Apex27 Agentic Access

129 operations · 70 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

AgenticAccess

LLMsTxt

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

DataModel

Vocabulary

Webhooks

Scroll for all 7

Build 1

SDKs, sample code, and the tooling you integrate with

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Support

Support

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Other 3

Properties that don't map to a standard resource type

Overlay

Overlay

Overlay

Overlay

AcceptableUsePolicy

AcceptableUsePolicy

Source (apis.yml)

aid: apex27
url: https://raw.githubusercontent.com/api-evangelist/apex27/refs/heads/main/apis.yml
name: Apex27
kind: company
description: Apex27 Limited is a United Kingdom estate agency CRM vendor, founded in 2019 and headquartered in the UK, selling
  cloud software to sales, lettings and commercial agents for £35 per user per month. It sits in the middle of the UK residential
  value chain — between the agent and the portals — capturing leads, applicants, listings, viewings, valuations, offers, sales
  progression and tenancies, then syndicating listings out to Rightmove, Zoopla, OnTheMarket and others. Because the UK has
  no MLS and no cooperative listing database, that CRM seat is the only practical route a listing takes to market, and Apex27
  is one of the private gatekeepers of it. Apex27 does operate two real HTTP APIs — the Apex27 CRM API at api.apex27.co.uk
  and a per-tenant Portal API that powers agency websites — but neither has a public developer portal. The documentation URL
  that Apex27's own published n8n node points at, docs.apex27.co.uk, returns 404, and every CRM endpoint returns 401 Unauthorised
  without a key issued inside a paid tenant. Access is customer-only, not self-serve. RESO does not apply — no RESO Web API
  or Data Dictionary certification exists for Apex27 or for the UK market at all, since RESO is a NAR/MLS construct with no
  UK counterpart. Apex27 publishes no open data; the UK's open property layer belongs to HM Land Registry and Ordnance Survey,
  not to the CRM vendors.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - 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
image: https://apex27.co.uk/img/icon.png
tags:
- Real-Estate
- United Kingdom
- PropTech
- Property Listings
- CRM
- Estate Agency
- Lettings
- Rentals
- Property Management
- Valuation
- Tenancy
- Conveyancing
tags_raw:
- Real Estate
- United Kingdom
- PropTech
- Property Listings
- CRM
- Estate Agency
- Lettings
- Rentals
- Property Management
- Valuation
- Tenancy
- Conveyancing
created: '2026-07-26'
modified: '2026-07-26'
specificationVersion: '0.23'
apis:
- aid: apex27:apex27-availability-api
  name: Apex27 Availability API
  description: Appointment availability for valuations and viewings.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Availability
  properties:
  - type: OpenAPI
    url: openapi/apex27-availability-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-branches-api
  name: Apex27 Branches API
  description: Agency branches within the tenant.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Branches
  properties:
  - type: OpenAPI
    url: openapi/apex27-branches-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-call-logs-api
  name: Apex27 Call Logs API
  description: Telephone activity recorded against a contact.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Call Logs
  properties:
  - type: OpenAPI
    url: openapi/apex27-call-logs-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-client-portal-api
  name: Apex27 Client Portal API
  description: Client-portal authentication and sign-in links.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Client Portal
  properties:
  - type: OpenAPI
    url: openapi/apex27-client-portal-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-completions-api
  name: Apex27 Completions API
  description: Sales completions and progression.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Completions
  properties:
  - type: OpenAPI
    url: openapi/apex27-completions-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-contact-orders-api
  name: Apex27 Contact Orders API
  description: Orders placed against a contact.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Contact Orders
  properties:
  - type: OpenAPI
    url: openapi/apex27-contact-orders-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-contact-referrals-api
  name: Apex27 Contact Referrals API
  description: Referrals raised against a contact (conveyancing, mortgage, survey).
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Contact Referrals
  properties:
  - type: OpenAPI
    url: openapi/apex27-contact-referrals-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-contacts-api
  name: Apex27 Contacts API
  description: Applicants, vendors, landlords, tenants and buyers held in the CRM.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/apex27-contacts-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-documents-api
  name: Apex27 Documents API
  description: Documents attached to listings or contacts.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Documents
  properties:
  - type: OpenAPI
    url: openapi/apex27-documents-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-enquiries-api
  name: Apex27 Enquiries API
  description: Website enquiries and valuation requests.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Enquiries
  properties:
  - type: OpenAPI
    url: openapi/apex27-enquiries-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-favourites-api
  name: Apex27 Favourites API
  description: Saved listings for a portal contact.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Favourites
  properties:
  - type: OpenAPI
    url: openapi/apex27-favourites-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-global-search-api
  name: Apex27 Global Search API
  description: Cross-entity search.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Global Search
  properties:
  - type: OpenAPI
    url: openapi/apex27-global-search-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-inspections-api
  name: Apex27 Inspections API
  description: Property inspections (lettings management).
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Inspections
  properties:
  - type: OpenAPI
    url: openapi/apex27-inspections-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-leads-api
  name: Apex27 Leads API
  description: Inbound leads and their pipeline status.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Leads
  properties:
  - type: OpenAPI
    url: openapi/apex27-leads-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-listing-issues-api
  name: Apex27 Listing Issues API
  description: Maintenance issues raised against a listing.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Listing Issues
  properties:
  - type: OpenAPI
    url: openapi/apex27-listing-issues-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-listing-keys-api
  name: Apex27 Listing Keys API
  description: Key sets held for a listing, including check-out and check-in.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Listing Keys
  properties:
  - type: OpenAPI
    url: openapi/apex27-listing-keys-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-listing-links-api
  name: Apex27 Listing Links API
  description: Virtual tours, videos, EPC reports and brochure links on a listing.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Listing Links
  properties:
  - type: OpenAPI
    url: openapi/apex27-listing-links-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-listing-media-api
  name: Apex27 Listing Media API
  description: Images, EPCs, floorplans, brochures and videos on a listing.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Listing Media
  properties:
  - type: OpenAPI
    url: openapi/apex27-listing-media-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-listing-rooms-api
  name: Apex27 Listing Rooms API
  description: Room-by-room detail on a listing.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Listing Rooms
  properties:
  - type: OpenAPI
    url: openapi/apex27-listing-rooms-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-listing-searches-api
  name: Apex27 Listing Searches API
  description: Saved applicant listing searches used for matching and alerts.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Listing Searches
  properties:
  - type: OpenAPI
    url: openapi/apex27-listing-searches-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-listings-api
  name: Apex27 Listings API
  description: Sales, lettings, land and commercial property records.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Listings
  properties:
  - type: OpenAPI
    url: openapi/apex27-listings-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-notes-api
  name: Apex27 Notes API
  description: Free-text notes attached to a contact or a listing.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Notes
  properties:
  - type: OpenAPI
    url: openapi/apex27-notes-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-notifications-api
  name: Apex27 Notifications API
  description: In-app notifications to users, branches, listings or contacts.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Notification
  tags_raw:
  - Notifications
  properties:
  - type: OpenAPI
    url: openapi/apex27-notifications-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-offers-api
  name: Apex27 Offers API
  description: Offers made against listings.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Offers
  properties:
  - type: OpenAPI
    url: openapi/apex27-offers-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-onboarding-checks-api
  name: Apex27 Onboarding Checks API
  description: Compliance and onboarding checklists on a listing.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Onboarding Checks
  properties:
  - type: OpenAPI
    url: openapi/apex27-onboarding-checks-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-search-regions-api
  name: Apex27 Search Regions API
  description: Named geographic search regions.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Search Regions
  properties:
  - type: OpenAPI
    url: openapi/apex27-search-regions-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-statistics-api
  name: Apex27 Statistics API
  description: Portal inventory statistics.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Statistics
  properties:
  - type: OpenAPI
    url: openapi/apex27-statistics-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-tasks-api
  name: Apex27 Tasks API
  description: Work items assigned to users.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Task
  tags_raw:
  - Tasks
  properties:
  - type: OpenAPI
    url: openapi/apex27-tasks-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-tenancies-api
  name: Apex27 Tenancies API
  description: Tenancy agreements and their lifecycle.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Tenancies
  properties:
  - type: OpenAPI
    url: openapi/apex27-tenancies-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-users-api
  name: Apex27 Users API
  description: CRM users within the tenant.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/apex27-users-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-valuations-api
  name: Apex27 Valuations API
  description: Market appraisals and valuation appointments.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Valuations
  properties:
  - type: OpenAPI
    url: openapi/apex27-valuations-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-viewings-api
  name: Apex27 Viewings API
  description: Viewing appointments.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Viewings
  properties:
  - type: OpenAPI
    url: openapi/apex27-viewings-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
- aid: apex27:apex27-webhooks-api
  name: Apex27 Webhooks API
  description: Webhook subscription management.
  humanURL: https://apex27.co.uk/integration/n8n
  baseURL: https://api.apex27.co.uk
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/apex27-webhooks-api-openapi.yml
  - type: Documentation
    url: https://apex27.co.uk/integration/n8n
  - type: Integrations
    url: https://apex27.co.uk/integrations
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27crm
  - type: SignUp
    url: https://apex27.co.uk/estate-agent-software-sign-up
  - type: Documentation
    url: https://apex27.co.uk/websites
  - type: Node
    url: https://www.npmjs.com/package/n8n-nodes-apex27portal
common:
- type: Overlay
  url: overlays/apex27-crm-api-overlay.yaml
- type: Overlay
  url: overlays/apex27-portal-api-overlay.yaml
- type: X-MCPServerCandidate
  url: mcp/apex27-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: AgenticAccess
  url: agentic-access/apex27-agentic-access.yml
- type: DomainSecurity
  url: security/apex27-domain-security.yml
- type: Authentication
  url: authentication/apex27-authentication.yml
- type: Website
  url: https://apex27.co.uk/
- type: SignUp
  url: https://apex27.co.uk/estate-agent-software-sign-up
- type: Pricing
  url: https://apex27.co.uk/estate-agent-software-pricing
- type: Features
  url: https://apex27.co.uk/estate-agent-software-features
- type: Integrations
  url: https://apex27.co.uk/integrations
- type: ChangeLog
  url: https://apex27.co.uk/crm-changelog
- type: Blog
  url: https://apex27.co.uk/estate-agency-blog
- type: Support
  url: https://apex27.co.uk/contact-apex27
- type: TermsOfService
  url: https://apex27.co.uk/terms-of-use
- type: PrivacyPolicy
  url: https://apex27.co.uk/privacy-policy
- type: AcceptableUsePolicy
  url: https://apex27.co.uk/acceptable-use-policy
  name: Acceptable Use Policy
- type: LinkedIn
  url: https://www.linkedin.com/company/apex27
- type: Packages
  url: packages/apex27-packages.yml
  name: Client libraries published by Apex27
- type: LLMsTxt
  url: llms/apex27-llms.txt
  name: llms.txt for Apex27
- type: Conformance
  url: conformance/apex27-conformance.yml
  name: Standards conformance assessment
- type: ErrorCatalog
  url: errors/apex27-problem-types.yml
  name: Observed error catalog
- type: Lifecycle
  url: lifecycle/apex27-lifecycle.yml
  name: Versioning, deprecation, SLA and status posture
- type: Conventions
  url: conventions/apex27-conventions.yml
  name: Cross-cutting API conventions
- type: ChangeLog
  url: changelog/apex27-changelog.yml
  name: Structured CRM changelog
- type: DataModel
  url: data-model/apex27-data-model.yml
  name: Derived entity-relationship model
- type: Vocabulary
  url: vocabulary/apex27-vocabulary.yml
  name: Controlled vocabularies accepted on the wire
- type: Webhooks
  url: asyncapi/apex27-webhooks.yml
  name: Webhook subscription surface
- type: AgentSkill
  url: skills/_index.yml
  name: Packaged agent skills for the marquee Apex27 flows
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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