Landmark Information Group is a United Kingdom property and land data business, part of Daily Mail and General Trust (DMGT), that sits in the middle of the UK residential and commercial property transaction rather than at the listing end of it. Founded in 1995 and headquartered in Exeter, it aggregates 700+ datasets from nearly 400 suppliers — Ordnance Survey mapping and AddressBase/UPRN addressing, environmental and flood and mining risk, historical maps, planning applications, and Barbour ABI project data — and sells them as conveyancing search reports (SearchFlow, Envirocheck, RiskView, SiteSolutions), estate agency compliance and material information products (LandmarkAgent, Metropix floor plans), case management software for property lawyers (Optimus, Intelliworks, Ochresoft, Vantage), and lender/surveyor valuation infrastructure (Secure Panel Network SPN and SPN+, Q-Guard). The UK has no MLS and no RESO equivalent — residential listings are controlled by the Rightmove/Zoopla duopoly and reached through agency CRMs — so Landmark is not a listings company; it is the transaction-data and workflow layer beneath conveyancers, lenders, surveyors, and agents. Its API posture is unusually honest for this sector: Landmark runs a genuinely public, un-gated API documentation portal at landmarkcloudservices.com that publishes full OpenAPI 3.x contracts for its Compliance/Order, Conveyancing, Intelliworks, Document Vault, and Milestone Notification APIs, plus a public HTML technical pack for the Barbour ABI-powered Planning API. Reading the contracts is open to anyone; calling them is not. Every API is OAuth 2.0 client-credentials against Landmark's Auth0 tenant with a client ID and secret issued only after a commercial account is onboarded ("your Landmark contact will confirm what's available to you"), and the Planning API requires a paid subscription or pay-as-you-go agreement plus an API key issued by Landmark. There is no RESO Web API certification, no RESO Data Dictionary posture, no OData $metadata document and no Universal Property Identifier anywhere in Landmark's surface — RESO is a North American MLS construct and is simply absent from the UK market. Landmark publishes no open data of its own; the open UK property layer belongs to HM Land Registry and Ordnance Survey, both of which are Landmark suppliers rather than Landmark products.
Landmark Information Group publishes 10 API contracts indexed on the APIs.io network, including Activities API, Cases API, Document Vaults API, and 7 more. Tagged areas include Real Estate, United Kingdom, PropTech, Property Data, and Conveyancing.
The Landmark Information Group catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.
Landmark Information Group’s developer surface includes API reference, getting-started guide, support, changelog, sandbox, authentication, documentation, and 38 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Horizontal (data, software, accessibility, platform) regime, so
Regulatory Posture carries 15 points of the composite.
If this regime is wrong for your business, say so on your
provider repo — the
applicability map is public and we will correct it.
Create-or-Update Ergonomics 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.
The six quality facets above are damped to 75 points between them,
because the conditional facet above carries the other
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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
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
Documented Reversibility+6 pts — a reversal operation in the contract, graded up when a window is documented too
Protected Resource Metadata+5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified)
Agentic Commerce Well-Known Document+5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's
3 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
Access Clarityscores 34.2 — up to +13.2 composite points
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.
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 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.
RESTful planning-application data API combining Barbour ABI project information with Landmark geospatial data, covering UK and Republic of Ireland planning applications from 1 J...
On-demand raster mapping tile service delivered against the Open Geospatial Consortium Web Map Tile Service (OGC WMTS) standard, with 20 zoom levels spanning Ordnance Survey Mas...
Once you instruct a quote it becomes a case. If you're the conveyancer, these are the cases assigned to you: you work them through to completion and post updates as you go. If y...
Quotes are where a job begins. You build a quote for your client's transaction, get back the panel conveyancers available to you with their pricing, and instruct one of them to ...
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
aid: landmark-information
url: https://raw.githubusercontent.com/api-evangelist/landmark-information/refs/heads/main/apis.yml
name: Landmark Information Group
kind: company
description: 'Landmark Information Group is a United Kingdom property and land data business, part of Daily Mail and General
Trust (DMGT), that sits in the middle of the UK residential and commercial property transaction rather than at the listing
end of it. Founded in 1995 and headquartered in Exeter, it aggregates 700+ datasets from nearly 400 suppliers — Ordnance
Survey mapping and AddressBase/UPRN addressing, environmental and flood and mining risk, historical maps, planning applications,
and Barbour ABI project data — and sells them as conveyancing search reports (SearchFlow, Envirocheck, RiskView, SiteSolutions),
estate agency compliance and material information products (LandmarkAgent, Metropix floor plans), case management software
for property lawyers (Optimus, Intelliworks, Ochresoft, Vantage), and lender/surveyor valuation infrastructure (Secure Panel
Network SPN and SPN+, Q-Guard). The UK has no MLS and no RESO equivalent — residential listings are controlled by the Rightmove/Zoopla
duopoly and reached through agency CRMs — so Landmark is not a listings company; it is the transaction-data and workflow
layer beneath conveyancers, lenders, surveyors, and agents. Its API posture is unusually honest for this sector: Landmark
runs a genuinely public, un-gated API documentation portal at landmarkcloudservices.com that publishes full OpenAPI 3.x
contracts for its Compliance/Order, Conveyancing, Intelliworks, Document Vault, and Milestone Notification APIs, plus a
public HTML technical pack for the Barbour ABI-powered Planning API. Reading the contracts is open to anyone; calling them
is not. Every API is OAuth 2.0 client-credentials against Landmark''s Auth0 tenant with a client ID and secret issued only
after a commercial account is onboarded ("your Landmark contact will confirm what''s available to you"), and the Planning
API requires a paid subscription or pay-as-you-go agreement plus an API key issued by Landmark. There is no RESO Web API
certification, no RESO Data Dictionary posture, no OData $metadata document and no Universal Property Identifier anywhere
in Landmark''s surface — RESO is a North American MLS construct and is simply absent from the UK market. Landmark publishes
no open data of its own; the open UK property layer belongs to HM Land Registry and Ordnance Survey, both of which are Landmark
suppliers rather than Landmark products.'
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
- rate-limits
- security
- sandbox
generated: '2026-11-06'
method: derived
image: https://www.landmarkcloudservices.com/assets/favicon.png
tags:
- Real Estate
- United Kingdom
- PropTech
- Property Data
- Conveyancing
- Land Registry
- Geospatial
- Valuation
- AML
- Planning Data
- Mortgage
tags_raw:
- Real Estate
- United Kingdom
- PropTech
- Property Data
- Conveyancing
- Land Registry
- Geospatial
- Valuation
- Anti-Money Laundering
- Planning Data
- Mortgage
- Real-Estate
created: '2026-07-26'
modified: '2026-07-26'
specificationVersion: '0.23'
apis:
- aid: landmark-information:landmark-planning-api
name: Landmark Planning API (powered by Barbour ABI)
description: RESTful planning-application data API combining Barbour ABI project information with Landmark geospatial data,
covering UK and Republic of Ireland planning applications from 1 January 2017 (with historical project data back to 1997)
across 19 documented attributes including UPRN, easting/northing, latitude/longitude and GeoJSON/WKT site boundaries.
Documented operations are GET login, GET logout, GET customers, GET lookups, GET locations (preview search with a JSON
query DSL and point-radius distance filtering) and GET locations/{project_id} (full details, which consumes a credit under
pay-as-you-go). Documented in public HTML only — no OpenAPI, Postman collection, or other machine-readable contract is
published. Authentication is a Landmark-issued x-api-key plus a Basic-auth login (base64 of username and SHA256-hashed
password) that returns a bearer token valid until 30 days of disuse.
humanURL: https://www.landmark.co.uk/products/planning-api/planning-api-documentation/
baseURL: https://api.barbour-abi.com/v4
tags:
- Planning
- Geospatial
- Land Development
- Commercial Real Estate
properties:
- type: Documentation
url: https://www.landmark.co.uk/products/planning-api/
- type: APIReference
url: https://www.landmark.co.uk/products/planning-api/planning-api-documentation/
- aid: landmark-information:landmark-geodata-web-map-tile-service
name: Landmark Geodata Web Map Tile Service (WMTS)
description: On-demand raster mapping tile service delivered against the Open Geospatial Consortium Web Map Tile Service
(OGC WMTS) standard, with 20 zoom levels spanning Ordnance Survey MasterMap through national-scale mapping, for use inside
GIS platforms and web applications. Landmark documents the product and names the standard publicly but publishes no endpoint
URL and no GetCapabilities document; access begins with a register-your-interest form at geodata.landmark.co.uk and a
commercial agreement, so no baseURL is recorded here.
humanURL: https://www.landmark.co.uk/products/web-map-tile-service-0/
tags:
- Geospatial
- Mapping
- WMTS
- OGC
properties:
- type: Documentation
url: https://www.landmark.co.uk/products/web-map-tile-service-0/
- type: SignUp
url: https://geodata.landmark.co.uk/register-your-interest-in-wmts
- aid: landmark-information:landmark-information-activities-api
name: Landmark Information Group Activities API
description: Read a vault's audit history.
humanURL: https://www.landmarkcloudservices.com/?api=order-experience-api
baseURL: https://api.landmarkcloudservices.com/connect
tags:
- Activities
properties:
- type: OpenAPI
url: openapi/landmark-information-activities-api-openapi.yml
- type: APIReference
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Webhooks
url: asyncapi/landmark-information-webhooks.yml
- type: Arazzo
url: arazzo/landmark-information-order-compliance-check.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Authentication
url: authentication/landmark-information-openid-configuration.json
- type: APIReference
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Arazzo
url: arazzo/landmark-information-quote-to-instruction.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/optimus/
- type: APIReference
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/case-management/
- type: APIReference
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Arazzo
url: arazzo/landmark-information-assemble-contract-pack.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/contract-pack-vault/
- type: APIReference
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Arazzo
url: arazzo/landmark-information-subscribe-valuation-milestones.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/spn/
- aid: landmark-information:landmark-information-cases-api
name: Landmark Information Group Cases API
description: 'Once you instruct a quote it becomes a case. If you''re the conveyancer, these are the cases assigned to you:
you work them through to completion and post updates as you go. If you''re the introducer, this is how you follow the
work you''ve referred and see how it''s progressing. Either way, you only see the cases your account is party to.
From here you can retrieve your cases, read the full detail of one, update its status and handler, work the task hierarchy,
follow the activity history, and add notes. Document exchange is marked Preview.'
humanURL: https://www.landmarkcloudservices.com/?api=order-experience-api
baseURL: https://api.landmarkcloudservices.com/connect
tags:
- Cases
properties:
- type: OpenAPI
url: openapi/landmark-information-cases-api-openapi.yml
- type: APIReference
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Webhooks
url: asyncapi/landmark-information-webhooks.yml
- type: Arazzo
url: arazzo/landmark-information-order-compliance-check.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Authentication
url: authentication/landmark-information-openid-configuration.json
- type: APIReference
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Arazzo
url: arazzo/landmark-information-quote-to-instruction.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/optimus/
- type: APIReference
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/case-management/
- type: APIReference
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Arazzo
url: arazzo/landmark-information-assemble-contract-pack.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/contract-pack-vault/
- type: APIReference
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Arazzo
url: arazzo/landmark-information-subscribe-valuation-milestones.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/spn/
- aid: landmark-information:landmark-information-document-vaults-api
name: Landmark Information Group Document Vaults API
description: Create a vault and manage its details and recipients.
humanURL: https://www.landmarkcloudservices.com/?api=order-experience-api
baseURL: https://api.landmarkcloudservices.com/connect
tags:
- Document Vaults
properties:
- type: OpenAPI
url: openapi/landmark-information-document-vaults-api-openapi.yml
- type: APIReference
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Webhooks
url: asyncapi/landmark-information-webhooks.yml
- type: Arazzo
url: arazzo/landmark-information-order-compliance-check.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Authentication
url: authentication/landmark-information-openid-configuration.json
- type: APIReference
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Arazzo
url: arazzo/landmark-information-quote-to-instruction.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/optimus/
- type: APIReference
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/case-management/
- type: APIReference
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Arazzo
url: arazzo/landmark-information-assemble-contract-pack.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/contract-pack-vault/
- type: APIReference
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Arazzo
url: arazzo/landmark-information-subscribe-valuation-milestones.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/spn/
- aid: landmark-information:landmark-information-documents-api
name: Landmark Information Group Documents API
description: Add and remove the files held in a vault.
humanURL: https://www.landmarkcloudservices.com/?api=order-experience-api
baseURL: https://api.landmarkcloudservices.com/connect
tags:
- Documents
properties:
- type: OpenAPI
url: openapi/landmark-information-documents-api-openapi.yml
- type: APIReference
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Webhooks
url: asyncapi/landmark-information-webhooks.yml
- type: Arazzo
url: arazzo/landmark-information-order-compliance-check.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Authentication
url: authentication/landmark-information-openid-configuration.json
- type: APIReference
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Arazzo
url: arazzo/landmark-information-quote-to-instruction.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/optimus/
- type: APIReference
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/case-management/
- type: APIReference
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Arazzo
url: arazzo/landmark-information-assemble-contract-pack.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/contract-pack-vault/
- type: APIReference
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Arazzo
url: arazzo/landmark-information-subscribe-valuation-milestones.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/spn/
- aid: landmark-information:landmark-information-milestones-api
name: Landmark Information Group Milestones API
description: Operations to manage callback configurations for transaction milestone notifications
humanURL: https://www.landmarkcloudservices.com/?api=order-experience-api
baseURL: https://api.landmarkcloudservices.com/connect
tags:
- Milestones
tags_raw:
- milestones
properties:
- type: OpenAPI
url: openapi/landmark-information-milestones-api-openapi.yml
- type: APIReference
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Webhooks
url: asyncapi/landmark-information-webhooks.yml
- type: Arazzo
url: arazzo/landmark-information-order-compliance-check.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Authentication
url: authentication/landmark-information-openid-configuration.json
- type: APIReference
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Arazzo
url: arazzo/landmark-information-quote-to-instruction.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/optimus/
- type: APIReference
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/case-management/
- type: APIReference
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Arazzo
url: arazzo/landmark-information-assemble-contract-pack.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/contract-pack-vault/
- type: APIReference
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Arazzo
url: arazzo/landmark-information-subscribe-valuation-milestones.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/spn/
- aid: landmark-information:landmark-information-order-experience-api-api
name: Landmark Information Group Order Experience API
description: Operations to create and receive order results.
humanURL: https://www.landmarkcloudservices.com/?api=order-experience-api
baseURL: https://api.landmarkcloudservices.com/connect
tags:
- Order Experience API
properties:
- type: OpenAPI
url: openapi/landmark-information-order-experience-api-api-openapi.yml
- type: APIReference
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Webhooks
url: asyncapi/landmark-information-webhooks.yml
- type: Arazzo
url: arazzo/landmark-information-order-compliance-check.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Authentication
url: authentication/landmark-information-openid-configuration.json
- type: APIReference
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Arazzo
url: arazzo/landmark-information-quote-to-instruction.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/optimus/
- type: APIReference
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/case-management/
- type: APIReference
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Arazzo
url: arazzo/landmark-information-assemble-contract-pack.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/contract-pack-vault/
- type: APIReference
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Arazzo
url: arazzo/landmark-information-subscribe-valuation-milestones.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/spn/
- aid: landmark-information:landmark-information-quotes-api
name: Landmark Information Group Quotes API
description: 'Quotes are where a job begins. You build a quote for your client''s transaction, get back the panel conveyancers
available to you with their pricing, and instruct one of them to turn the quote into a live case.
A single request can cover a standalone transaction (one quote) or a combined sale and purchase (two quotes, one for each
side). You choose what you''re quoting for with a product schema, which sets the questions that apply. See [Product Schemas](#tag/Product-Schemas).
To instruct, pass the `conveyancerId` of one of the conveyancers returned for the quote. That creates the case and makes
the details available to the conveyancer you''ve chosen.'
humanURL: https://www.landmarkcloudservices.com/?api=order-experience-api
baseURL: https://api.landmarkcloudservices.com/connect
tags:
- Quotes
properties:
- type: OpenAPI
url: openapi/landmark-information-quotes-api-openapi.yml
- type: APIReference
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Webhooks
url: asyncapi/landmark-information-webhooks.yml
- type: Arazzo
url: arazzo/landmark-information-order-compliance-check.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Authentication
url: authentication/landmark-information-openid-configuration.json
- type: APIReference
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Arazzo
url: arazzo/landmark-information-quote-to-instruction.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/optimus/
- type: APIReference
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/case-management/
- type: APIReference
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Arazzo
url: arazzo/landmark-information-assemble-contract-pack.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/contract-pack-vault/
- type: APIReference
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Arazzo
url: arazzo/landmark-information-subscribe-valuation-milestones.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/spn/
- aid: landmark-information:landmark-information-transaction-requests-api
name: Landmark Information Group Transaction Requests API
description: APIs for tracking asynchronous request status
humanURL: https://www.landmarkcloudservices.com/?api=order-experience-api
baseURL: https://api.landmarkcloudservices.com/connect
tags:
- Transaction Requests
properties:
- type: OpenAPI
url: openapi/landmark-information-transaction-requests-api-openapi.yml
- type: APIReference
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Webhooks
url: asyncapi/landmark-information-webhooks.yml
- type: Arazzo
url: arazzo/landmark-information-order-compliance-check.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/order-experience-api.html
- type: Authentication
url: authentication/landmark-information-openid-configuration.json
- type: APIReference
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Arazzo
url: arazzo/landmark-information-quote-to-instruction.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/optimus/
- type: APIReference
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmarkcloudservices.com/intelliworks-experienceapi-CreateCase-api.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/case-management/
- type: APIReference
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Arazzo
url: arazzo/landmark-information-assemble-contract-pack.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/document-vault-experience.html
- type: Documentation
url: https://www.landmark.co.uk/legal-conveyancing/contract-pack-vault/
- type: APIReference
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Arazzo
url: arazzo/landmark-information-subscribe-valuation-milestones.yml
- type: Documentation
url: https://www.landmarkcloudservices.com/milestone-service-api.html
- type: Documentation
url: https://www.landmark.co.uk/products/spn/
common:
- type: CapabilityMap
url: capabilities/landmark-information-capability-edges.yml
name: Landmark Information Group Business Capability Map
- type: Overlay
url: overlays/landmark-information-order-experience-api-overlay.yaml
- type: AgentSkill
url: skills/landmark-information-order-compliance-check.md
- type: Overlay
url: overlays/landmark-information-conveyancing-experience-api-overlay.yaml
- type: AgentSkill
url: skills/landmark-information-quote-and-instruct-conveyancing.md
- type: Overlay
url: overlays/landmark-information-intelliworks-api-overlay.yaml
- type: AgentSkill
url: skills/landmark-information-create-intelliworks-case.md
- type: Overlay
url: overlays/landmark-information-document-vault-api-overlay.yaml
- type: AgentSkill
url: skills/landmark-information-build-contract-pack-vault.md
- type: Overlay
url: overlays/landmark-information-milestone-notification-service-api-overlay.yaml
- type: AgentSkill
url: skills/landmark-information-subscribe-valuation-milestones.md
- type: DeveloperPortal
url: https://www.landmarkcloudservices.com/
- type: APIReference
url: https://www.landmarkcloudservices.com/
- type: GettingStarted
url: https://www.landmarkcloudservices.com/conveyances-experience-api.html#section/Getting-started
- type: Support
url: https://www.landmark.co.uk/our-group/contact/
- type: Conventions
url: conventions/landmark-information-conventions.yml
- type: ErrorCatalog
url: errors/landmark-information-problem-types.yml
- type: Lifecycle
url: lifecycle/landmark-information-lifecycle.yml
- type: ChangeLog
url: changelog/landmark-information-changelog.yml
- type: Sandbox
url: sandbox/landmark-information-sandbox.yml
- type: RateLimits
url: rate-limits/landmark-information-rate-limits.yml
- type: Conformance
url: conformance/landmark-information-conformance.yml
- type: DataModel
url: data-model/landmark-information-data-model.yml
- type: WellKnown
url: well-known/landmark-information-well-known.yml
- type: Webhooks
url: asyncapi/landmark-information-webhooks.yml
- type: X-MCPServerCandidate
url: mcp/landmark-information-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: LLMsTxt
url: llms/landmark-information-llms.txt
- type: AgentSkill
url: skills/_index.yml
- type: AgenticAccess
url: agentic-access/landmark-information-agentic-access.yml
- type: Arazzo
url: arazzo/_index.yml
- type: DomainSecurity
url: security/landmark-information-domain-security.yml
- type: OAuthScopes
url: scopes/landmark-information-scopes.yml
- type: Authentication
url: authentication/landmark-information-authentication.yml
- type: Website
url: https://www.landmark.co.uk/
- type: Documentation
url: https://www.landmarkcloudservices.com/
- type: Authentication
url: authentication/landmark-information-openid-configuration.json
- type: SignUp
url: https://www.landmark.co.uk/our-group/contact/
- type: Blog
url: https://www.landmark.co.uk/news-insights/blog/
- type: BlogRSS
url: https://www.landmark.co.uk/feed/
- type: PrivacyPolicy
url: https://www.landmark.co.uk/privacy-policy/
- type: TermsOfService
url: https://www.landmark.co.uk/terms-conditions/
- type: GitHubOrganization
url: https://github.com/Landmark-Information-Group
- type: LinkedIn
url: https://www.linkedin.com/company/landmark-information-group
- type: Careers
url: https://www.landmark.co.uk/careers/
- type: Partners
url: https://www.landmark.co.uk/partners-suppliers/
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
Landmark Information Group API — frequently asked questions
Does Landmark Information Group have an API?
Yes. APIs.io lists 10 APIs from Landmark Information Group, including Landmark Planning API (powered by Barbour ABI), Landmark Geodata Web Map Tile Service (WMTS) and Landmark Information Group Activities API, and 7 more.
Is there an OpenAPI specification for the Landmark Information Group API?
Yes. APIs.io indexes 8 OpenAPI specifications for Landmark Information Group, each linked for download from this page.
How do I authenticate with the Landmark Information Group API?
Landmark Information Group documents its authentication (http/oauth2/apiKey · 3 schemes). The details are profiled on APIs.io as Landmark Information Authentication.
Is the Landmark Information Group API ready for AI agents?
Landmark Information Group has a Kin Score of 54.1 out of 100 (developing) and an Agent Readiness score of 47.0 (agent-ready), scored by API Evangelist on 2026-11-06.
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