Alto (Vebra / Zoopla)

Alto — formerly Vebra Alto, and still trading through vebra.com — is the United Kingdom's most widely deployed estate agency CRM, used by more than 6,000 sales and lettings agency branches to run valuations, listings, applicant matching, offers, sales and lettings progression, tenancies, property management, work orders and client accounting. It is owned by Houseful Limited, the parent of the Zoopla portal, which places Alto at the exact chokepoint of the UK residential market — the country has no MLS, so listings reach Rightmove and Zoopla through agency CRM software rather than a shared cooperative database, and Alto is the largest of those pipes. Its API posture is genuinely strong on the contract side and closed on the access side: Alto publishes an open, unauthenticated developer portal at developers.vebraalto.com carrying a complete OpenAPI 3.0.4 document (95 paths, 112 operations across 27 resource families) served verbatim from api-docs.vebraalto.com, alongside 26 documented CloudEvents 1.0 webhook event types and 101 published OAuth scope strings. But credentials are partner-only — a developer must register an integration in Alto Connect, be bound by an existing contract with Vebra Solutions, and then wait for an individual agency to activate the integration and issue an AgencyRef before a single call can be made. Sibling Zoopla portal product APIs (Leads, Premium Listing Activations, Weekly Featured Property) are documented publicly at developers.zoopla.co.uk with downloadable specs but are likewise restricted to contracted Zoopla agency customers. There is no SDK, CLI, Postman collection, MCP server or status page anywhere in the estate, and no RESO Web API or Data Dictionary certification exists — RESO is a North American NAR-driven standard with no UK counterpart. Alto publishes no open data; the UK's open property layer sits with HM Land Registry and Ordnance Survey, not with the private CRM duopoly feeders.

Alto (Vebra / Zoopla) publishes 29 APIs on the APIs.io network, including Appointments API, Appraisals API, Branches API, and 26 more. Tagged areas include Real-Estate, United Kingdom, PropTech, Property Listings, and CRM.

The Alto (Vebra / Zoopla) catalog on APIs.io includes 2 event-driven AsyncAPI specifications.

Alto (Vebra / Zoopla)’s developer surface includes authentication, documentation, developer portal, engineering blog, support, changelog, sandbox, and 41 more developer resources.

🌐 Visit website 📡 Source on GitHub

45.8/100 developing ▬ flat Agent 42/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessSelf serve

4 APIs

Real-Estate United Kingdom PropTech Property Listings CRM Property Management Rentals Conveyancing Estate Agency Tenancy Webhook Event LettingsSales ProgressionProperty DataReal Estate Software

Kin Score

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

Composite quality — 45.8/100 · developing

Contract Quality 12.5 / 23

Developer Ergonomics 11.9 / 18

Access Clarity 6.2 / 18

Operational Transparency 4.3 / 12

Contract Governance 0.5 / 11

Discoverability 6.5 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 42/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 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 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 6 / 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/alto-vebra: 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 29

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

Alto (Vebra / Zoopla) Appointments API

The Appointments API from Alto (Vebra / Zoopla) — 7 operation(s) for appointments.

Alto (Vebra / Zoopla) Appraisals API

The Appraisals API from Alto (Vebra / Zoopla) — 2 operation(s) for appraisals.

Alto (Vebra / Zoopla) Branches API

The Branches API from Alto (Vebra / Zoopla) — 2 operation(s) for branches.

Alto (Vebra / Zoopla) Charges API

The Charges API from Alto (Vebra / Zoopla) — 2 operation(s) for charges.

Alto (Vebra / Zoopla) Clients API

The Clients API from Alto (Vebra / Zoopla) — 1 operation(s) for clients.

Alto (Vebra / Zoopla) Contacts API

The Contacts API from Alto (Vebra / Zoopla) — 13 operation(s) for contacts.

Alto (Vebra / Zoopla) Documents API

The Documents API from Alto (Vebra / Zoopla) — 5 operation(s) for documents.

Alto (Vebra / Zoopla) File Notes API

The FileNotes API from Alto (Vebra / Zoopla) — 4 operation(s) for filenotes.

Alto (Vebra / Zoopla) Inventory API

The Inventory API from Alto (Vebra / Zoopla) — 10 operation(s) for inventory.

Alto (Vebra / Zoopla) Landlords API

The Landlords API from Alto (Vebra / Zoopla) — 2 operation(s) for landlords.

Alto (Vebra / Zoopla) Leads API

The Leads API from Alto (Vebra / Zoopla) — 2 operation(s) for leads.

Alto (Vebra / Zoopla) Lettings Progression API

The LettingsProgression API from Alto (Vebra / Zoopla) — 1 operation(s) for lettingsprogression.

Alto (Vebra / Zoopla) Listing API

The Listing API from Alto (Vebra / Zoopla) — 7 operation(s) for listing.

Alto (Vebra / Zoopla) Management Events API

The ManagementEvents API from Alto (Vebra / Zoopla) — 3 operation(s) for managementevents.

Alto (Vebra / Zoopla) Media API

The Media API from Alto (Vebra / Zoopla) — 3 operation(s) for media.

Alto (Vebra / Zoopla) Negotiators API

The Negotiators API from Alto (Vebra / Zoopla) — 2 operation(s) for negotiators.

Alto (Vebra / Zoopla) Offers API

The Offers API from Alto (Vebra / Zoopla) — 1 operation(s) for offers.

Alto (Vebra / Zoopla) Owners API

The Owners API from Alto (Vebra / Zoopla) — 1 operation(s) for owners.

Alto (Vebra / Zoopla) Parameters API

The Parameters API from Alto (Vebra / Zoopla) — 6 operation(s) for parameters.

Alto (Vebra / Zoopla) Partners API

The Partners API from Alto (Vebra / Zoopla) — 3 operation(s) for partners.

Alto (Vebra / Zoopla) Products API

The Products API from Alto (Vebra / Zoopla) — 4 operation(s) for products.

Alto (Vebra / Zoopla) Reference Checks API

The ReferenceChecks API from Alto (Vebra / Zoopla) — 2 operation(s) for referencechecks.

Alto (Vebra / Zoopla) Referral API

The Referral API from Alto (Vebra / Zoopla) — 1 operation(s) for referral.

Alto (Vebra / Zoopla) Referrals API

The Referrals API from Alto (Vebra / Zoopla) — 1 operation(s) for referrals.

Alto (Vebra / Zoopla) REST Endpoints API

The REST Endpoints API from Alto (Vebra / Zoopla) — 2 operation(s) for rest endpoints.

Alto (Vebra / Zoopla) Sales Progression API

The SalesProgression API from Alto (Vebra / Zoopla) — 2 operation(s) for salesprogression.

Alto (Vebra / Zoopla) Suppliers API

The Suppliers API from Alto (Vebra / Zoopla) — 3 operation(s) for suppliers.

Alto (Vebra / Zoopla) Tenancies API

The Tenancies API from Alto (Vebra / Zoopla) — 6 operation(s) for tenancies.

Alto (Vebra / Zoopla) Work Orders API

The WorkOrders API from Alto (Vebra / Zoopla) — 3 operation(s) for workorders.

Scroll for all 29

Open Collections 4

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

Alto API

OPEN COLLECTION

Leads API

OPEN COLLECTION

Premium Listing activations

OPEN COLLECTION

Weekly Featured Property (WFP) Activations

OPEN COLLECTION

Event Specifications 2

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

Alto Webhooks

Event notifications Alto delivers to a partner-hosted HTTPS endpoint when data changes in an Alto agency tenancy. Faithfully transcribed by API Evangelist from the webhook catal...

ASYNCAPI

Zoopla Lead Push Service

Real-time delivery of Zoopla portal leads to a partner-hosted endpoint. Faithfully transcribed by API Evangelist from the push-service documentation Zoopla publishes at https://...

ASYNCAPI

Security Posture 3

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

Alto Vebra Authentication

apiKey/oauth2 · 5 schemes

SECURITY

Alto Vebra Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Alto Vebra Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Alto Vebra Scopes

104 scopes · clientCredentials

104 scopes

SCOPES

Agentic Access 1

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

Alto Vebra Agentic Access

121 operations · 48 acting

AGENTIC

Resources

Get Started 6

Portal, sign-up, and the first successful call

Portal

Sandbox

DeveloperPortal

GettingStarted

SignUp

Login

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

AsyncAPI

AsyncAPI

APIReference

APIReference

Agent Surfaces 6

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

WellKnown

WellKnown

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

ErrorCatalog

Lifecycle

Conventions

DataModel

Webhooks

Scroll for all 7

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

GitHubOrganization

GitHubOrganization

Packages

Packages

ToolCrosswalk

ToolCrosswalk

Access & Security 6

Authentication, authorization, and security posture

DomainSecurity

OAuthScopes

Authentication

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Operate 4

Status, limits, changes, and where to get help

Support

ChangeLog

Support

HelpCenter

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 3

The organization behind the API

Website

Website

Blog

Blog

BlogRSS

BlogRSS

Other 6

Properties that don't map to a standard resource type

CapabilityMap

Overlay

Overlay

Overlay

Overlay

OpenIDConnect

Source (apis.yml)

aid: alto-vebra
url: https://raw.githubusercontent.com/api-evangelist/alto-vebra/refs/heads/main/apis.yml
name: Alto (Vebra / Zoopla)
kind: company
description: 'Alto — formerly Vebra Alto, and still trading through vebra.com — is the United Kingdom''s most widely deployed
  estate agency CRM, used by more than 6,000 sales and lettings agency branches to run valuations, listings, applicant matching,
  offers, sales and lettings progression, tenancies, property management, work orders and client accounting. It is owned by
  Houseful Limited, the parent of the Zoopla portal, which places Alto at the exact chokepoint of the UK residential market
  — the country has no MLS, so listings reach Rightmove and Zoopla through agency CRM software rather than a shared cooperative
  database, and Alto is the largest of those pipes. Its API posture is genuinely strong on the contract side and closed on
  the access side: Alto publishes an open, unauthenticated developer portal at developers.vebraalto.com carrying a complete
  OpenAPI 3.0.4 document (95 paths, 112 operations across 27 resource families) served verbatim from api-docs.vebraalto.com,
  alongside 26 documented CloudEvents 1.0 webhook event types and 101 published OAuth scope strings. But credentials are partner-only
  — a developer must register an integration in Alto Connect, be bound by an existing contract with Vebra Solutions, and then
  wait for an individual agency to activate the integration and issue an AgencyRef before a single call can be made. Sibling
  Zoopla portal product APIs (Leads, Premium Listing Activations, Weekly Featured Property) are documented publicly at developers.zoopla.co.uk
  with downloadable specs but are likewise restricted to contracted Zoopla agency customers. There is no SDK, CLI, Postman
  collection, MCP server or status page anywhere in the estate, and no RESO Web API or Data Dictionary certification exists
  — RESO is a North American NAR-driven standard with no UK counterpart. Alto publishes no open data; the UK''s open property
  layer sits with HM Land Registry and Ordnance Survey, not with the private CRM duopoly feeders.'
imageNote: The `image` property was removed on 2026-08-26. It had been copied verbatim out of a bootstrap template and pointed
  at an icon belonging to groq, not to this company. That asset returns HTTP 200, so the record rendered another company's
  brand rather than a broken image, which is why it went unreported (roadmap#153). No correct icon has been sourced yet. Shipping
  the wrong company's mark is worse than shipping none; re-run the icon backfill once a real asset exists.
tags:
- Real-Estate
- United Kingdom
- PropTech
- Property Listings
- CRM
- Property Management
- Rentals
- Conveyancing
- Estate Agency
- Tenancy
- Webhook
- Event
- Lettings
- Sales Progression
- Property Data
- Real Estate Software
tags_raw:
- Real Estate
- United Kingdom
- PropTech
- Property Listings
- CRM
- Property Management
- Rentals
- Conveyancing
- Estate Agency
- Tenancy
- Webhooks
- Events
- Lettings
- Sales Progression
- Property Data
- Real Estate Software
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: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  - scopes
  - security
  - sandbox
  generated: '2026-09-02'
  method: derived
created: '2026-07-26'
modified: '2026-07-26'
specificationVersion: '0.23'
apis:
- aid: alto-vebra:alto-vebra-appointments-api
  name: Alto (Vebra / Zoopla) Appointments API
  description: The Appointments API from Alto (Vebra / Zoopla) — 7 operation(s) for appointments.
  humanURL: https://developers.vebraalto.com/api
  baseURL: https://api.alto.zoopla.co.uk
  tags:
  - Appointments
  properties:
  - type: OpenAPI
    url: openapi/alto-vebra-appointments-api-openapi.yml
  - type: Documentation
    url: https://developers.vebraalto.com/
  - type: APIReference
    url: https://developers.vebraalto.com/api
  - type: Authentication
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Webhooks
    url: https://developers.vebraalto.com/guides/webhooks/
  - type: TermsOfService
    url: https://developers.vebraalto.com/api-terms-of-use
  - type: Errors
    url: https://developers.vebraalto.com/guides/error-codes/
  - type: Glossary
    url: https://developers.vebraalto.com/guides/glossary/
  - type: Sandbox
    url: https://developers.vebraalto.com/guides/access-to-sandbox-alto-ui/
  - type: Portal
    url: https://connect.vebraalto.com/connect
  - type: Support
    url: https://partnerfeedback.vebraalto.com/
  - type: Sandbox
    url: sandbox/alto-vebra-sandbox.yml
  - type: ErrorCatalog
    url: errors/alto-vebra-problem-types.yml
  - type: AsyncAPI
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: GettingStarted
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: APIReference
    url: https://developers.zoopla.co.uk/leads/reference/api
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/push-service
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/field-definitions
  - type: Authentication
    url: https://developers.zoopla.co.uk/docs/authentication
  - type: TermsOfService
    url: https://developers.zoopla.co.uk/docs/terms-of-use
  - type: AsyncAPI
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: GettingStarted
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/premium-listings
  - type: APIReference
    url: https://developers.zoopla.co.uk/premium-listings/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/premium-listings-error-codes-register
  - type: ErrorCatalog
    url: errors/alto-vebra-error-codes.yml
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties
  - type: APIReference
    url: https://developers.zoopla.co.uk/wfp/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties-error-code-register
- aid: alto-vebra:alto-vebra-appraisals-api
  name: Alto (Vebra / Zoopla) Appraisals API
  description: The Appraisals API from Alto (Vebra / Zoopla) — 2 operation(s) for appraisals.
  humanURL: https://developers.vebraalto.com/api
  baseURL: https://api.alto.zoopla.co.uk
  tags:
  - Appraisals
  properties:
  - type: OpenAPI
    url: openapi/alto-vebra-appraisals-api-openapi.yml
  - type: Documentation
    url: https://developers.vebraalto.com/
  - type: APIReference
    url: https://developers.vebraalto.com/api
  - type: Authentication
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Webhooks
    url: https://developers.vebraalto.com/guides/webhooks/
  - type: TermsOfService
    url: https://developers.vebraalto.com/api-terms-of-use
  - type: Errors
    url: https://developers.vebraalto.com/guides/error-codes/
  - type: Glossary
    url: https://developers.vebraalto.com/guides/glossary/
  - type: Sandbox
    url: https://developers.vebraalto.com/guides/access-to-sandbox-alto-ui/
  - type: Portal
    url: https://connect.vebraalto.com/connect
  - type: Support
    url: https://partnerfeedback.vebraalto.com/
  - type: Sandbox
    url: sandbox/alto-vebra-sandbox.yml
  - type: ErrorCatalog
    url: errors/alto-vebra-problem-types.yml
  - type: AsyncAPI
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: GettingStarted
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: APIReference
    url: https://developers.zoopla.co.uk/leads/reference/api
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/push-service
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/field-definitions
  - type: Authentication
    url: https://developers.zoopla.co.uk/docs/authentication
  - type: TermsOfService
    url: https://developers.zoopla.co.uk/docs/terms-of-use
  - type: AsyncAPI
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: GettingStarted
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/premium-listings
  - type: APIReference
    url: https://developers.zoopla.co.uk/premium-listings/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/premium-listings-error-codes-register
  - type: ErrorCatalog
    url: errors/alto-vebra-error-codes.yml
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties
  - type: APIReference
    url: https://developers.zoopla.co.uk/wfp/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties-error-code-register
- aid: alto-vebra:alto-vebra-branches-api
  name: Alto (Vebra / Zoopla) Branches API
  description: The Branches API from Alto (Vebra / Zoopla) — 2 operation(s) for branches.
  humanURL: https://developers.vebraalto.com/api
  baseURL: https://api.alto.zoopla.co.uk
  tags:
  - Branches
  properties:
  - type: OpenAPI
    url: openapi/alto-vebra-branches-api-openapi.yml
  - type: Documentation
    url: https://developers.vebraalto.com/
  - type: APIReference
    url: https://developers.vebraalto.com/api
  - type: Authentication
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Webhooks
    url: https://developers.vebraalto.com/guides/webhooks/
  - type: TermsOfService
    url: https://developers.vebraalto.com/api-terms-of-use
  - type: Errors
    url: https://developers.vebraalto.com/guides/error-codes/
  - type: Glossary
    url: https://developers.vebraalto.com/guides/glossary/
  - type: Sandbox
    url: https://developers.vebraalto.com/guides/access-to-sandbox-alto-ui/
  - type: Portal
    url: https://connect.vebraalto.com/connect
  - type: Support
    url: https://partnerfeedback.vebraalto.com/
  - type: Sandbox
    url: sandbox/alto-vebra-sandbox.yml
  - type: ErrorCatalog
    url: errors/alto-vebra-problem-types.yml
  - type: AsyncAPI
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: GettingStarted
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: APIReference
    url: https://developers.zoopla.co.uk/leads/reference/api
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/push-service
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/field-definitions
  - type: Authentication
    url: https://developers.zoopla.co.uk/docs/authentication
  - type: TermsOfService
    url: https://developers.zoopla.co.uk/docs/terms-of-use
  - type: AsyncAPI
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: GettingStarted
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/premium-listings
  - type: APIReference
    url: https://developers.zoopla.co.uk/premium-listings/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/premium-listings-error-codes-register
  - type: ErrorCatalog
    url: errors/alto-vebra-error-codes.yml
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties
  - type: APIReference
    url: https://developers.zoopla.co.uk/wfp/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties-error-code-register
- aid: alto-vebra:alto-vebra-charges-api
  name: Alto (Vebra / Zoopla) Charges API
  description: The Charges API from Alto (Vebra / Zoopla) — 2 operation(s) for charges.
  humanURL: https://developers.vebraalto.com/api
  baseURL: https://api.alto.zoopla.co.uk
  tags:
  - Charges
  properties:
  - type: OpenAPI
    url: openapi/alto-vebra-charges-api-openapi.yml
  - type: Documentation
    url: https://developers.vebraalto.com/
  - type: APIReference
    url: https://developers.vebraalto.com/api
  - type: Authentication
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Webhooks
    url: https://developers.vebraalto.com/guides/webhooks/
  - type: TermsOfService
    url: https://developers.vebraalto.com/api-terms-of-use
  - type: Errors
    url: https://developers.vebraalto.com/guides/error-codes/
  - type: Glossary
    url: https://developers.vebraalto.com/guides/glossary/
  - type: Sandbox
    url: https://developers.vebraalto.com/guides/access-to-sandbox-alto-ui/
  - type: Portal
    url: https://connect.vebraalto.com/connect
  - type: Support
    url: https://partnerfeedback.vebraalto.com/
  - type: Sandbox
    url: sandbox/alto-vebra-sandbox.yml
  - type: ErrorCatalog
    url: errors/alto-vebra-problem-types.yml
  - type: AsyncAPI
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: GettingStarted
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: APIReference
    url: https://developers.zoopla.co.uk/leads/reference/api
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/push-service
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/field-definitions
  - type: Authentication
    url: https://developers.zoopla.co.uk/docs/authentication
  - type: TermsOfService
    url: https://developers.zoopla.co.uk/docs/terms-of-use
  - type: AsyncAPI
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: GettingStarted
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/premium-listings
  - type: APIReference
    url: https://developers.zoopla.co.uk/premium-listings/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/premium-listings-error-codes-register
  - type: ErrorCatalog
    url: errors/alto-vebra-error-codes.yml
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties
  - type: APIReference
    url: https://developers.zoopla.co.uk/wfp/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties-error-code-register
- aid: alto-vebra:alto-vebra-clients-api
  name: Alto (Vebra / Zoopla) Clients API
  description: The Clients API from Alto (Vebra / Zoopla) — 1 operation(s) for clients.
  humanURL: https://developers.vebraalto.com/api
  baseURL: https://api.alto.zoopla.co.uk
  tags:
  - Clients
  properties:
  - type: OpenAPI
    url: openapi/alto-vebra-clients-api-openapi.yml
  - type: Documentation
    url: https://developers.vebraalto.com/
  - type: APIReference
    url: https://developers.vebraalto.com/api
  - type: Authentication
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Webhooks
    url: https://developers.vebraalto.com/guides/webhooks/
  - type: TermsOfService
    url: https://developers.vebraalto.com/api-terms-of-use
  - type: Errors
    url: https://developers.vebraalto.com/guides/error-codes/
  - type: Glossary
    url: https://developers.vebraalto.com/guides/glossary/
  - type: Sandbox
    url: https://developers.vebraalto.com/guides/access-to-sandbox-alto-ui/
  - type: Portal
    url: https://connect.vebraalto.com/connect
  - type: Support
    url: https://partnerfeedback.vebraalto.com/
  - type: Sandbox
    url: sandbox/alto-vebra-sandbox.yml
  - type: ErrorCatalog
    url: errors/alto-vebra-problem-types.yml
  - type: AsyncAPI
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: GettingStarted
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: APIReference
    url: https://developers.zoopla.co.uk/leads/reference/api
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/push-service
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/field-definitions
  - type: Authentication
    url: https://developers.zoopla.co.uk/docs/authentication
  - type: TermsOfService
    url: https://developers.zoopla.co.uk/docs/terms-of-use
  - type: AsyncAPI
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: GettingStarted
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/premium-listings
  - type: APIReference
    url: https://developers.zoopla.co.uk/premium-listings/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/premium-listings-error-codes-register
  - type: ErrorCatalog
    url: errors/alto-vebra-error-codes.yml
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties
  - type: APIReference
    url: https://developers.zoopla.co.uk/wfp/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties-error-code-register
- aid: alto-vebra:alto-vebra-contacts-api
  name: Alto (Vebra / Zoopla) Contacts API
  description: The Contacts API from Alto (Vebra / Zoopla) — 13 operation(s) for contacts.
  humanURL: https://developers.vebraalto.com/api
  baseURL: https://api.alto.zoopla.co.uk
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/alto-vebra-contacts-api-openapi.yml
  - type: Documentation
    url: https://developers.vebraalto.com/
  - type: APIReference
    url: https://developers.vebraalto.com/api
  - type: Authentication
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Webhooks
    url: https://developers.vebraalto.com/guides/webhooks/
  - type: TermsOfService
    url: https://developers.vebraalto.com/api-terms-of-use
  - type: Errors
    url: https://developers.vebraalto.com/guides/error-codes/
  - type: Glossary
    url: https://developers.vebraalto.com/guides/glossary/
  - type: Sandbox
    url: https://developers.vebraalto.com/guides/access-to-sandbox-alto-ui/
  - type: Portal
    url: https://connect.vebraalto.com/connect
  - type: Support
    url: https://partnerfeedback.vebraalto.com/
  - type: Sandbox
    url: sandbox/alto-vebra-sandbox.yml
  - type: ErrorCatalog
    url: errors/alto-vebra-problem-types.yml
  - type: AsyncAPI
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: GettingStarted
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: APIReference
    url: https://developers.zoopla.co.uk/leads/reference/api
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/push-service
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/field-definitions
  - type: Authentication
    url: https://developers.zoopla.co.uk/docs/authentication
  - type: TermsOfService
    url: https://developers.zoopla.co.uk/docs/terms-of-use
  - type: AsyncAPI
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: GettingStarted
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/premium-listings
  - type: APIReference
    url: https://developers.zoopla.co.uk/premium-listings/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/premium-listings-error-codes-register
  - type: ErrorCatalog
    url: errors/alto-vebra-error-codes.yml
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties
  - type: APIReference
    url: https://developers.zoopla.co.uk/wfp/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties-error-code-register
- aid: alto-vebra:alto-vebra-documents-api
  name: Alto (Vebra / Zoopla) Documents API
  description: The Documents API from Alto (Vebra / Zoopla) — 5 operation(s) for documents.
  humanURL: https://developers.vebraalto.com/api
  baseURL: https://api.alto.zoopla.co.uk
  tags:
  - Documents
  properties:
  - type: OpenAPI
    url: openapi/alto-vebra-documents-api-openapi.yml
  - type: Documentation
    url: https://developers.vebraalto.com/
  - type: APIReference
    url: https://developers.vebraalto.com/api
  - type: Authentication
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Webhooks
    url: https://developers.vebraalto.com/guides/webhooks/
  - type: TermsOfService
    url: https://developers.vebraalto.com/api-terms-of-use
  - type: Errors
    url: https://developers.vebraalto.com/guides/error-codes/
  - type: Glossary
    url: https://developers.vebraalto.com/guides/glossary/
  - type: Sandbox
    url: https://developers.vebraalto.com/guides/access-to-sandbox-alto-ui/
  - type: Portal
    url: https://connect.vebraalto.com/connect
  - type: Support
    url: https://partnerfeedback.vebraalto.com/
  - type: Sandbox
    url: sandbox/alto-vebra-sandbox.yml
  - type: ErrorCatalog
    url: errors/alto-vebra-problem-types.yml
  - type: AsyncAPI
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: GettingStarted
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: APIReference
    url: https://developers.zoopla.co.uk/leads/reference/api
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/push-service
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/field-definitions
  - type: Authentication
    url: https://developers.zoopla.co.uk/docs/authentication
  - type: TermsOfService
    url: https://developers.zoopla.co.uk/docs/terms-of-use
  - type: AsyncAPI
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: GettingStarted
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/premium-listings
  - type: APIReference
    url: https://developers.zoopla.co.uk/premium-listings/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/premium-listings-error-codes-register
  - type: ErrorCatalog
    url: errors/alto-vebra-error-codes.yml
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties
  - type: APIReference
    url: https://developers.zoopla.co.uk/wfp/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties-error-code-register
- aid: alto-vebra:alto-vebra-filenotes-api
  name: Alto (Vebra / Zoopla) File Notes API
  description: The FileNotes API from Alto (Vebra / Zoopla) — 4 operation(s) for filenotes.
  humanURL: https://developers.vebraalto.com/api
  baseURL: https://api.alto.zoopla.co.uk
  tags:
  - File Notes
  tags_raw:
  - FileNotes
  properties:
  - type: OpenAPI
    url: openapi/alto-vebra-filenotes-api-openapi.yml
  - type: Documentation
    url: https://developers.vebraalto.com/
  - type: APIReference
    url: https://developers.vebraalto.com/api
  - type: Authentication
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Webhooks
    url: https://developers.vebraalto.com/guides/webhooks/
  - type: TermsOfService
    url: https://developers.vebraalto.com/api-terms-of-use
  - type: Errors
    url: https://developers.vebraalto.com/guides/error-codes/
  - type: Glossary
    url: https://developers.vebraalto.com/guides/glossary/
  - type: Sandbox
    url: https://developers.vebraalto.com/guides/access-to-sandbox-alto-ui/
  - type: Portal
    url: https://connect.vebraalto.com/connect
  - type: Support
    url: https://partnerfeedback.vebraalto.com/
  - type: Sandbox
    url: sandbox/alto-vebra-sandbox.yml
  - type: ErrorCatalog
    url: errors/alto-vebra-problem-types.yml
  - type: AsyncAPI
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: GettingStarted
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: APIReference
    url: https://developers.zoopla.co.uk/leads/reference/api
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/push-service
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/field-definitions
  - type: Authentication
    url: https://developers.zoopla.co.uk/docs/authentication
  - type: TermsOfService
    url: https://developers.zoopla.co.uk/docs/terms-of-use
  - type: AsyncAPI
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: GettingStarted
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/premium-listings
  - type: APIReference
    url: https://developers.zoopla.co.uk/premium-listings/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/premium-listings-error-codes-register
  - type: ErrorCatalog
    url: errors/alto-vebra-error-codes.yml
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties
  - type: APIReference
    url: https://developers.zoopla.co.uk/wfp/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties-error-code-register
- aid: alto-vebra:alto-vebra-inventory-api
  name: Alto (Vebra / Zoopla) Inventory API
  description: The Inventory API from Alto (Vebra / Zoopla) — 10 operation(s) for inventory.
  humanURL: https://developers.vebraalto.com/api
  baseURL: https://api.alto.zoopla.co.uk
  tags:
  - Inventory
  properties:
  - type: OpenAPI
    url: openapi/alto-vebra-inventory-api-openapi.yml
  - type: Documentation
    url: https://developers.vebraalto.com/
  - type: APIReference
    url: https://developers.vebraalto.com/api
  - type: Authentication
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Webhooks
    url: https://developers.vebraalto.com/guides/webhooks/
  - type: TermsOfService
    url: https://developers.vebraalto.com/api-terms-of-use
  - type: Errors
    url: https://developers.vebraalto.com/guides/error-codes/
  - type: Glossary
    url: https://developers.vebraalto.com/guides/glossary/
  - type: Sandbox
    url: https://developers.vebraalto.com/guides/access-to-sandbox-alto-ui/
  - type: Portal
    url: https://connect.vebraalto.com/connect
  - type: Support
    url: https://partnerfeedback.vebraalto.com/
  - type: Sandbox
    url: sandbox/alto-vebra-sandbox.yml
  - type: ErrorCatalog
    url: errors/alto-vebra-problem-types.yml
  - type: AsyncAPI
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: GettingStarted
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: APIReference
    url: https://developers.zoopla.co.uk/leads/reference/api
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/push-service
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/field-definitions
  - type: Authentication
    url: https://developers.zoopla.co.uk/docs/authentication
  - type: TermsOfService
    url: https://developers.zoopla.co.uk/docs/terms-of-use
  - type: AsyncAPI
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: GettingStarted
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/premium-listings
  - type: APIReference
    url: https://developers.zoopla.co.uk/premium-listings/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/premium-listings-error-codes-register
  - type: ErrorCatalog
    url: errors/alto-vebra-error-codes.yml
  - type: Documentation
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties
  - type: APIReference
    url: https://developers.zoopla.co.uk/wfp/reference/api
  - type: Errors
    url: https://developers.zoopla.co.uk/docs/weekly-featured-properties-error-code-register
- aid: alto-vebra:alto-vebra-landlords-api
  name: Alto (Vebra / Zoopla) Landlords API
  description: The Landlords API from Alto (Vebra / Zoopla) — 2 operation(s) for landlords.
  humanURL: https://developers.vebraalto.com/api
  baseURL: https://api.alto.zoopla.co.uk
  tags:
  - Landlords
  properties:
  - type: OpenAPI
    url: openapi/alto-vebra-landlords-api-openapi.yml
  - type: Documentation
    url: https://developers.vebraalto.com/
  - type: APIReference
    url: https://developers.vebraalto.com/api
  - type: Authentication
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Webhooks
    url: https://developers.vebraalto.com/guides/webhooks/
  - type: TermsOfService
    url: https://developers.vebraalto.com/api-terms-of-use
  - type: Errors
    url: https://developers.vebraalto.com/guides/error-codes/
  - type: Glossary
    url: https://developers.vebraalto.com/guides/glossary/
  - type: Sandbox
    url: https://developers.vebraalto.com/guides/access-to-sandbox-alto-ui/
  - type: Portal
    url: https://connect.vebraalto.com/connect
  - type: Support
    url: https://partnerfeedback.vebraalto.com/
  - type: Sandbox
    url: sandbox/alto-vebra-sandbox.yml
  - type: ErrorCatalog
    url: errors/alto-vebra-problem-types.yml
  - type: AsyncAPI
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-alto-webhooks-asyncapi.yml
  - type: GettingStarted
    url: https://developers.vebraalto.com/guides/authenticating-your-requests/
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/available-lead-services
  - type: APIReference
    url: https://developers.zoopla.co.uk/leads/reference/api
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/push-service
  - type: Documentation
    url: https://developers.zoopla.co.uk/leads/docs/field-definitions
  - type: Authentication
    url: https://developers.zoopla.co.uk/docs/authentication
  - type: TermsOfService
    url: https://developers.zoopla.co.uk/docs/terms-of-use
  - type: AsyncAPI
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: Webhooks
    url: asyncapi/alto-vebra-zoopla-leads-push-asyncapi.yml
  - type: GettingStarted

# --- truncated at 32 KB (92 KB total) ---
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curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/alto-vebra/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/alto-vebra/evidence"

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