Street.co.uk

Street.co.uk (Street Systems Limited, Manchester, England) is a UK estate agency CRM and property management platform for residential sales, lettings, property management and client accounting. In the United Kingdom there is no MLS and no RESO — residential listing distribution runs from agency CRM software out to the Rightmove and Zoopla portals — which places Street.co.uk at the agency system-of-record layer of the value chain, upstream of the portal duopoly and alongside Reapit, Alto and Apex27. Its API posture is unusually open for this sector: three OpenAPI 3.1 contracts (Street Open API, Property Feed, Spectre) are published unauthenticated on a public Scalar developer portal at developers.street.co.uk and can be downloaded as JSON or YAML by anyone. Access to the data behind them is not open — production bearer tokens are generated inside a paying agency's Street account under Settings > Account Administration > Applications, and a non-customer developer must email apis@street.co.uk to be issued a sandbox token on the staging environment. Nothing RESO, no OData $metadata, and no open government data is published by Street.co.uk itself; the open UK property data layer sits with HM Land Registry and Ordnance Survey, not with the CRM vendors.

Street.co.uk publishes 3 APIs on the APIs.io network: Street Open API, Street Property Feed API, and Spectre API. Tagged areas include Real Estate, United Kingdom, PropTech, CRM, and Property Listings.

The Street.co.uk catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Street.co.uk’s developer surface includes authentication, changelog, sandbox, documentation, getting-started guide, engineering blog, pricing, and 35 more developer resources.

🌐 Visit website 📡 Source on GitHub
52.5/100 developing ▬ flat Agent 82/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5
3 APIs 1 MCP Servers
Real EstateUnited KingdomPropTechCRMProperty ListingsProperty ManagementRentalsLettingsEstate AgencyValuationConveyancing

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 52.5/100 · developing
Contract Quality 15.9 / 25
Developer Ergonomics 13.5 / 20
Commercial Clarity 8.9 / 20
Operational Transparency 4.1 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 82/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/street-co: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 3

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

Street Open API

The main Street.co.uk platform API — a JSON:API-conformant REST interface over the estate agency system of record, covering properties, sales and lettings instructions, offers, ...

Street Property Feed API

A read-only property feed API for powering an agency's own website and property search — sales search, lettings search, a single property record, area lookups and a property fea...

Spectre API

The public API for the Spectre products, documented on the Street.co.uk developer portal and integrated into the Street CRM. Covers Spectre Property Reports (create and retrieve...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Candidate MCP tool surface derived from the three OpenAPIs (Street publishes no MCP server)

MCP SERVER

Rate Limits 1

Documented rate limits and quota policies.

Street Co Rate Limits

0 limits

RATE LIMITS

Event Specifications 1

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

Street Co Webhooks

ASYNCAPI

Security Posture 2

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

Street Co Authentication

http · 2 schemes

SECURITY

Street Co Domain Security

TLSv1.2 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Street Co Agentic Access

94 operations · 19 acting

94 operations · 19 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

Sandbox
Sandbox
 DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 Login
Login

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 12

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 WellKnown
WellKnown
 MCPServer
MCPServer
 AgentSkill
AgentSkill
 AgentSkill
AgentSkill
 AgentSkill
AgentSkill
 AgentSkill
AgentSkill
 AgentSkill
AgentSkill
 AgentSkill
AgentSkill
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt
 LLMsText
LLMsText

Scroll for all 12

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conformance
Conformance
 DataModel
DataModel
 Webhooks
Webhooks

Build 2

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 ToolCrosswalk
ToolCrosswalk

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 6

Status, limits, changes, and where to get help

RateLimits
RateLimits
 Deprecation
Deprecation
 ChangeLog
ChangeLog
 Support
Support
 HelpCenter
HelpCenter
 Contact
Contact

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Other 4

Properties that don't map to a standard resource type

Overlay
Overlay
 Overlay
Overlay
 Overlay
Overlay
 Review
Review

Source (apis.yml)

apis.yml Raw ↑ 
aid: street-co
url: https://raw.githubusercontent.com/api-evangelist/street-co/refs/heads/main/apis.yml
name: Street.co.uk
kind: company
description: 'Street.co.uk (Street Systems Limited, Manchester, England) is a UK estate agency CRM and property management
  platform for residential sales, lettings, property management and client accounting. In the United Kingdom there is no MLS
  and no RESO — residential listing distribution runs from agency CRM software out to the Rightmove and Zoopla portals — which
  places Street.co.uk at the agency system-of-record layer of the value chain, upstream of the portal duopoly and alongside
  Reapit, Alto and Apex27. Its API posture is unusually open for this sector: three OpenAPI 3.1 contracts (Street Open API,
  Property Feed, Spectre) are published unauthenticated on a public Scalar developer portal at developers.street.co.uk and
  can be downloaded as JSON or YAML by anyone. Access to the data behind them is not open — production bearer tokens are generated
  inside a paying agency''s Street account under Settings > Account Administration > Applications, and a non-customer developer
  must email apis@street.co.uk to be issued a sandbox token on the staging environment. Nothing RESO, no OData $metadata,
  and no open government data is published by Street.co.uk itself; the open UK property data layer sits with HM Land Registry
  and Ordnance Survey, not with the CRM vendors.'
image: https://street.co.uk/apple-touch-icon.png
tags:
- Real Estate
- United Kingdom
- PropTech
- CRM
- Property Listings
- Property Management
- Rentals
- Lettings
- Estate Agency
- Valuation
- Conveyancing
created: '2026-07-26'
modified: '2026-07-26'
specificationVersion: '0.19'
apis:
- aid: street-co:street-open-api
  name: Street Open API
  description: The main Street.co.uk platform API — a JSON:API-conformant REST interface over the estate agency system of
    record, covering properties, sales and lettings instructions, offers, applicants, viewings, valuations, tenancies, tenants,
    landlords, vendors, maintenance jobs and requests, inspections, invoices, documents, e-sign documents, notes, tasks, users,
    branches and brands, plus read access to portal listings. 74 paths and 80 operations documented in a published OpenAPI
    3.1 contract.
  humanURL: https://developers.street.co.uk/docs/street-open-api
  baseURL: https://street.co.uk/open-api/v1
  tags:
  - Real Estate
  - CRM
  - Property Listings
  - Lettings
  - Property Management
  - Valuation
  - United Kingdom
  properties:
  - type: OpenAPI
    url: openapi/street-co-open-api-openapi.yml
  - type: OpenAPI
    url: openapi/_original/street-co-open-api-openapi.json
    name: Street Open API OpenAPI (verbatim source)
  - type: Documentation
    url: https://developers.street.co.uk/docs/street-open-api
  - type: APIReference
    url: https://developers.street.co.uk/docs/street-open-api/api-reference
  - type: Documentation
    url: https://street.co.uk/developers/api
    name: Open API product page
  - type: Sandbox
    url: https://demo.street.co.uk/open-api/v1
    name: Staging environment (sandbox token by email request)
  - type: Support
    url: https://api-support.street.co.uk/
  - type: ChangeLog
    url: https://developers.street.co.uk/docs/street-open-api/updates/open-api-updates
    name: Open API Updates
  - type: OpenAPI
    url: https://developers.street.co.uk/docs/street-open-api/api-reference/openapi.json
    name: Published OpenAPI 3.1 download (live provider URL)
  - type: GettingStarted
    url: https://developers.street.co.uk/docs/street-open-api
  - type: Webhooks
    url: asyncapi/street-co-webhooks.yml
    name: Webhook event catalog
  - type: RateLimits
    url: rate-limits/street-co-rate-limits.yml
    name: 600 GET/min, 100 write/min
- aid: street-co:street-property-feed-api
  name: Street Property Feed API
  description: A read-only property feed API for powering an agency's own website and property search — sales search, lettings
    search, a single property record, area lookups and a property features list. Five paths, all GET, documented in a published
    OpenAPI 3.1 contract. Serves the UK's portal-and-agency-website distribution model rather than any MLS or IDX arrangement.
  humanURL: https://developers.street.co.uk/docs/street-property-feed-api
  baseURL: https://street.co.uk/api/property-feed/v1
  tags:
  - Real Estate
  - Property Listings
  - Search
  - Rentals
  - United Kingdom
  properties:
  - type: OpenAPI
    url: openapi/street-co-property-feed-api-openapi.yml
  - type: OpenAPI
    url: openapi/_original/street-co-property-feed-api-openapi.json
    name: Property Feed OpenAPI (verbatim source)
  - type: Documentation
    url: https://developers.street.co.uk/docs/street-property-feed-api
  - type: APIReference
    url: https://developers.street.co.uk/docs/street-property-feed-api/api-reference
  - type: Sandbox
    url: https://demo.street.co.uk/api/property-feed/v1
    name: Staging environment
  - type: OpenAPI
    url: https://developers.street.co.uk/docs/street-property-feed-api/api-reference/openapi.json
    name: Published OpenAPI 3.1 download (live provider URL)
  - type: GettingStarted
    url: https://developers.street.co.uk/docs/street-property-feed-api
  - type: ChangeLog
    url: https://developers.street.co.uk/docs/street-property-feed-api/updates
    name: Property Feed Updates
  - type: RateLimits
    url: rate-limits/street-co-rate-limits.yml
    name: 600 requests/min
- aid: street-co:spectre-api
  name: Spectre API
  description: The public API for the Spectre products, documented on the Street.co.uk developer portal and integrated into
    the Street CRM. Covers Spectre Property Reports (create and retrieve property reports, retrieve report leads) and Spectre
    email marketing (contacts and segments). Six paths documented in a published OpenAPI 3.1 contract; tokens are issued by
    the Spectre team on email request.
  humanURL: https://developers.street.co.uk/docs/spectre-api-docs
  baseURL: https://api.spectre.uk.com/v1
  tags:
  - Real Estate
  - Property Reports
  - Marketing
  - Lead Generation
  - United Kingdom
  properties:
  - type: OpenAPI
    url: openapi/street-co-spectre-api-openapi.yml
  - type: OpenAPI
    url: openapi/_original/street-co-spectre-api-openapi.json
    name: Spectre API OpenAPI (verbatim source)
  - type: Documentation
    url: https://developers.street.co.uk/docs/spectre-api-docs
  - type: APIReference
    url: https://developers.street.co.uk/docs/spectre-api-docs/api-reference
  - type: OpenAPI
    url: https://developers.street.co.uk/docs/spectre-api-docs/api-reference/openapi.json
    name: Published OpenAPI 3.1 download (live provider URL)
  - type: GettingStarted
    url: https://developers.street.co.uk/docs/spectre-api-docs
  - type: Contact
    url: mailto:apis@spectre.uk.com
    name: Spectre API token requests
common:
- type: DomainSecurity
  url: security/street-co-domain-security.yml
- type: AgenticAccess
  url: agentic-access/street-co-agentic-access.yml
- type: Authentication
  url: authentication/street-co-authentication.yml
- type: Conventions
  url: conventions/street-co-conventions.yml
  name: JSON:API conventions — envelope, pagination, includes, filtering, versioning
- type: ErrorCatalog
  url: errors/street-co-problem-types.yml
  name: JSON:API error catalog (not RFC 9457)
- type: RateLimits
  url: rate-limits/street-co-rate-limits.yml
- type: Lifecycle
  url: lifecycle/street-co-lifecycle.yml
- type: Deprecation
  url: https://developers.street.co.uk/docs/street-open-api/updates/open-api-updates
  name: Deprecations announced with named replacements on the Open API updates page (no formal sunset policy)
- type: ChangeLog
  url: changelog/street-co-changelog.yml
  name: Structured changelog captured from both dated updates pages
- type: Conformance
  url: conformance/street-co-conformance.yml
- type: DataModel
  url: data-model/street-co-data-model.yml
  name: 46 JSON:API entities, 154 relationships derived from the Street Open API
- type: Webhooks
  url: asyncapi/street-co-webhooks.yml
  name: 19 named webhook events recovered from the Open API updates page (no AsyncAPI published)
- type: Sandbox
  url: sandbox/street-co-sandbox.yml
  name: Staging environments and token-request process
- type: Packages
  url: packages/street-co-packages.yml
  name: No first-party SDKs; provider-recommended JSON:API client libraries
- type: WellKnown
  url: well-known/street-co-well-known.yml
  name: /.well-known/ probe results (no discovery surface published)
- type: MCPServer
  url: mcp/street-co-mcp.yml
  name: Candidate MCP tool surface derived from the three OpenAPIs (Street publishes no MCP server)
- type: ToolCrosswalk
  url: mcp/street-co-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
  name: Agent Skills index
- type: AgentSkill
  url: skills/street-co-sync-property-portfolio.md
  name: Sync an agency's property portfolio from Street
- type: AgentSkill
  url: skills/street-co-capture-enquiry-and-follow-up.md
  name: Capture a lead into Street and schedule the follow-up
- type: AgentSkill
  url: skills/street-co-power-website-property-search.md
  name: Power an agency website property search with the Street Property Feed
- type: AgentSkill
  url: skills/street-co-tenancy-and-maintenance.md
  name: Read tenancies and raise a maintenance request
- type: AgentSkill
  url: skills/street-co-invoice-reconciliation.md
  name: Reconcile Street invoices and mark them paid
- type: AgentSkill
  url: skills/street-co-spectre-property-report.md
  name: Generate a Spectre property report and collect its leads
- type: Overlay
  url: overlays/street-co-open-api-overlay.yaml
  name: API Evangelist enhancements for the Street Open API
- type: Overlay
  url: overlays/street-co-property-feed-api-overlay.yaml
  name: API Evangelist enhancements for the Property Feed API
- type: Overlay
  url: overlays/street-co-spectre-api-overlay.yaml
  name: API Evangelist enhancements for the Spectre API
- type: LLMsTxt
  url: llms/street-co-llms.txt
  name: Generated llms.txt index of Street.co.uk APIs and artifacts
- type: Website
  url: https://street.co.uk/
- type: DeveloperPortal
  url: https://developers.street.co.uk/
- type: Documentation
  url: https://developers.street.co.uk/docs/street-open-api
- type: GettingStarted
  url: https://developers.street.co.uk/docs/street-open-api
  name: Street Open API getting started — auth, environments, rate limits
- type: Blog
  url: https://street.co.uk/blog
- type: Pricing
  url: https://street.co.uk/pricing
- type: Integrations
  url: https://street.co.uk/integrations
- type: Support
  url: https://api-support.street.co.uk/
- type: HelpCenter
  url: https://intercom.help/streetcouk/en/
  name: Street.co.uk Help Centre
- type: Login
  url: https://street.co.uk/login
- type: TermsOfService
  url: https://street.co.uk/terms
- type: PrivacyPolicy
  url: https://street.co.uk/privacy
- type: Contact
  url: mailto:apis@street.co.uk
  name: API team contact (sandbox and rate-limit requests)
- type: LLMsText
  url: https://developers.street.co.uk/llms.txt
  name: Provider-published llms.txt (single link to the docs home)
- type: Review
  url: review.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com