stream-estate

Stream.Estate provides a real-time real estate data API for PropTech companies, delivering over 50 million deduplicated property listings sourced from more than 1,500 data providers across France. The platform offers comprehensive market analytics, property insights, and live updates, enabling developers to build valuation tools, lead generation widgets, portfolio analysis, and market monitoring solutions. With robust API endpoints, webhook notifications, and flexible pricing plans, Stream.Estate empowers businesses to integrate accurate property data quickly and reliably.

stream-estate publishes 4 API contracts indexed on the APIs.io network, including Indicators API, Properties API, Searches API, and 1 more. Tagged areas include RealEstate, PropTech, DataAPI, MarketAnalytics, and Valuation.

The stream-estate catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

stream-estate’s developer surface includes changelog, authentication, signup flow, documentation, API reference, getting-started guide, support, and 24 more developer resources.

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56.8/100 strong Agent 57/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract 1 MCP Servers 1 Agent Skills

RealEstatePropTechDataAPIMarketAnalyticsValuation

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 56.8/100 · strong

Contract Quality 13.2 / 21

Developer Ergonomics 9.2 / 17

Access Clarity 7.6 / 17

Operational Transparency 3.5 / 11

Contract Governance 8.1 / 10

Discoverability 5.5 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 57/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

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 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

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)
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's

2 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 44.7 — up to +11.1 composite points
Contract Quality scores 62.1 — up to +9.5 composite points
Developer Ergonomics scores 54.0 — up to +9.2 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/stream-estate/apis.yml: open an issue on github.com/api-evangelist/stream-estate to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 4

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

stream-estate Indicators API

Market indicators, points of interest and location lookups.

stream-estate Properties API

Query aggregated real estate properties and their adverts.

stream-estate Searches API

Saved searches with webhook or email notifications.

stream-estate Webhooks API

Tools to test webhook integrations.

MCP Servers 1

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

stream-estate MCP Server

Remote MCP server at docs.stream.estate.

MCP SERVER

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

search-properties

AGENT SKILL

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Stream Estate Context

25 classes · 128 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

stream-estate API Rules

17 rules · 14 errors 2 warnings 1 info

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

PricePerMeterCollection

4 properties

JSON SCHEMA

PropertyCollection

4 properties

JSON SCHEMA

PropertyDocument

30 properties

JSON SCHEMA

SearchCollection

4 properties

JSON SCHEMA

SearchInput

40 properties

JSON SCHEMA

Search

42 properties

JSON SCHEMA

Security Posture 2

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

Stream Estate Authentication

1 scheme

SECURITY

Stream Estate Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Stream Estate Agentic Access

13 operations · 3 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

MCPServer

WellKnown

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conventions

ErrorCatalog

Conformance

Scroll for all 7

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

Security

Security

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

ChangeLog

ChangeLog

Support

Support

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 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: stream-estate
name: stream-estate
description: Stream.Estate provides a real-time real estate data API for PropTech companies, delivering over 50 million deduplicated
  property listings sourced from more than 1,500 data providers across France. The platform offers comprehensive market analytics,
  property insights, and live updates, enabling developers to build valuation tools, lead generation widgets, portfolio analysis,
  and market monitoring solutions. With robust API endpoints, webhook notifications, and flexible pricing plans, Stream.Estate
  empowers businesses to integrate accurate property data quickly and reliably.
url: https://artifacts.apis.io/stream-estate/apis.yml
image: https://stream.estate/img/logo-dark.png
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-31 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-31'
modified: '2026-10-31'
tags:
- RealEstate
- PropTech
- DataAPI
- MarketAnalytics
- Valuation
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/stream-estate-agentic-access.yml
- type: Spectral
  url: rules/stream-estate-rules.yml
- type: JSONLD
  url: json-ld/stream-estate-context.jsonld
- type: Vocabulary
  url: vocabulary/stream-estate-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/stream-estate-data-model.yml
- type: ChangeLog
  url: changelog/stream-estate-changelog.yml
- type: Conventions
  url: conventions/stream-estate-conventions.yml
- type: Authentication
  url: authentication/stream-estate-authentication.yml
- type: ErrorCatalog
  url: errors/stream-estate-problem-types.yml
- type: Conformance
  url: conformance/stream-estate-conformance.yml
- type: LLMsTxt
  url: llms/stream-estate-llms.txt
- type: AgentCard
  url: a2a/stream-estate-a2a.yml
- type: MCPServer
  url: mcp/stream-estate-mcp.yml
- type: WellKnown
  url: well-known/stream-estate-well-known.yml
- type: Hosts
  url: hosts/stream-estate-hosts.yml
- type: Vendors
  url: vendors/stream-estate-vendors.yml
- type: Security
  url: https://stream.estate/legal/security
- type: ChangeLog
  url: https://docs.stream.estate/changelog
- type: SignUp
  url: https://stream.estate/signup
- type: DomainSecurity
  url: security/stream-estate-domain-security.yml
- type: Website
  url: https://stream.estate/
- type: Documentation
  url: https://docs.stream.estate
- type: APIReference
  url: https://docs.stream.estate
- type: GettingStarted
  url: https://docs.stream.estate/introduction
- type: Support
  url: https://stream.estate/contact
- type: Blog
  url: https://stream.estate/blog
- type: GitHubOrganization
  url: https://github.com/StreamEstate
- type: Pricing
  url: https://stream.estate/pricing
- type: TermsOfService
  url: https://stream.estate/terms
- type: PrivacyPolicy
  url: https://stream.estate/privacy
apis:
- aid: stream-estate:stream-estate-indicators-api
  name: stream-estate Indicators API
  description: Market indicators, points of interest and location lookups.
  humanURL: https://docs.stream.estate/api-reference/concepts
  baseURL: https://api.stream.estate
  tags:
  - Indicators
  properties:
  - type: OpenAPI
    url: openapi/stream-estate-indicators-api-openapi.yml
  - type: JSONSchema
    url: json-schema/stream-estate-search-input-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-search-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-property-document-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-property-collection-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-price-per-meter-collection-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-search-collection-schema.json
- aid: stream-estate:stream-estate-properties-api
  name: stream-estate Properties API
  description: Query aggregated real estate properties and their adverts.
  humanURL: https://docs.stream.estate/api-reference/concepts
  baseURL: https://api.stream.estate
  tags:
  - Properties
  properties:
  - type: OpenAPI
    url: openapi/stream-estate-properties-api-openapi.yml
  - type: JSONSchema
    url: json-schema/stream-estate-search-input-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-search-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-property-document-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-property-collection-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-price-per-meter-collection-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-search-collection-schema.json
- aid: stream-estate:stream-estate-searches-api
  name: stream-estate Searches API
  description: Saved searches with webhook or email notifications.
  humanURL: https://docs.stream.estate/api-reference/concepts
  baseURL: https://api.stream.estate
  tags:
  - Searches
  properties:
  - type: OpenAPI
    url: openapi/stream-estate-searches-api-openapi.yml
  - type: JSONSchema
    url: json-schema/stream-estate-search-input-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-search-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-property-document-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-property-collection-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-price-per-meter-collection-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-search-collection-schema.json
- aid: stream-estate:stream-estate-webhooks-api
  name: stream-estate Webhooks API
  description: Tools to test webhook integrations.
  humanURL: https://docs.stream.estate/api-reference/concepts
  baseURL: https://api.stream.estate
  tags:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/stream-estate-webhooks-api-openapi.yml
  - type: JSONSchema
    url: json-schema/stream-estate-search-input-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-search-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-property-document-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-property-collection-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-price-per-meter-collection-schema.json
  - type: JSONSchema
    url: json-schema/stream-estate-search-collection-schema.json
x-enrichment:
  date: '2026-10-31'
  status: enriched
  artifacts_added: 32
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

stream-estate API — frequently asked questions

Does stream-estate have an API?

Yes. APIs.io lists 4 APIs from stream-estate, including stream-estate Indicators API, stream-estate Properties API and stream-estate Searches API, and 1 more.

Is there an OpenAPI specification for the stream-estate API?

Yes. APIs.io indexes 4 OpenAPI specifications for stream-estate, each linked for download from this page.

How do I authenticate with the stream-estate API?

stream-estate documents its authentication (1 scheme). The details are profiled on APIs.io as Stream Estate Authentication.

Does stream-estate have an MCP server?

Yes. APIs.io lists 1 MCP server for stream-estate: Remote MCP server at docs.stream.estate.

Is the stream-estate API ready for AI agents?

stream-estate has a Kin Score of 56.8 out of 100 (strong) and an Agent Readiness score of 56.9 (agent-ready), scored by API Evangelist on 2026-10-31.

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