Stellar MLS

Stellar MLS is a Florida-based multiple listing service. It does not host its own public developer API: listing data is delivered to brokers and vendors through the RESO Web API services of two distribution vendors, MLS Grid and Bridge API, under a three-party data license agreement, plus IDX and custom (non-IDX) feed options.

Stellar MLS is listed with 1 API on the APIs.io network. Tagged areas include Company, Real Estate, MLS, RESO, and IDX.

Stellar MLS’s developer surface includes support, documentation, and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

10.6/100 minimal ▼ -5.6 Agent 0/100 human only Heartbeat 82/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API

Company Real Estate MLS RESO IDX

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 10.6/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 1.8 / 17

Operational Transparency 0.3 / 11

Contract Governance 0.0 / 10

Discoverability 5.6 / 9

Regulatory Posture 1.5 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

13 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 10.5 — up to +17.9 composite points
Developer Ergonomics scores 11.9 — up to +17.6 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/stellar-mls/apis.yml: open an issue on github.com/api-evangelist/stellar-mls 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 1

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

Stellar MLS Data Delivery

Stellar MLS listing data delivery program (API, IDX and custom options). The Web API is not served from a Stellar MLS host; it is distributed through MLS Grid and Bridge API (di...

Security Posture 1

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

Stellar Mls Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Newsroom

Newsroom

Website

Website

Other 3

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Leadership

Leadership

Source (apis.yml)

aid: stellar-mls
name: Stellar MLS
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: none
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://irp.cdn-website.com/3d0f9886/dms3rep/multi/opt/Stellar+MLS+Open+Graph-1920w.png
description: 'Stellar MLS is a Florida-based multiple listing service. It does not host its own public developer API: listing
  data is delivered to brokers and vendors through the RESO Web API services of two distribution vendors, MLS Grid and Bridge
  API, under a three-party data license agreement, plus IDX and custom (non-IDX) feed options.'
url: https://raw.githubusercontent.com/api-evangelist/stellar-mls/refs/heads/main/apis.yml
x-type: company
x-source: harvest:market-gap:real-estate
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-14 (local-v5; was harvest)
specificationVersion: '0.20'
created: '2026-10-13'
modified: '2026-10-14'
tags:
- Company
- Real Estate
- MLS
- RESO
- IDX
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: LLMsTxt
  url: llms/stellar-mls-llms.txt
- type: WellKnown
  url: well-known/stellar-mls-well-known.yml
- type: Hosts
  url: hosts/stellar-mls-hosts.yml
- type: Vendors
  url: vendors/stellar-mls-vendors.yml
- type: TermsOfService
  url: https://www.stellarmls.com/terms-of-use
- type: Support
  url: https://www.stellarmls.com/support
- type: PrivacyPolicy
  url: https://www.stellarmls.com/privacy-policy
- type: Newsroom
  url: https://www.stellarmls.com/news
- type: Leadership
  url: https://www.stellarmls.com/about/team
- type: DeveloperPortal
  url: https://portal.stellarmls.com/
- type: GitHubOrganization
  url: https://github.com/StellarMLS
- type: DomainSecurity
  url: security/stellar-mls-domain-security.yml
- type: Website
  url: https://www.stellarmls.com
- type: Documentation
  url: https://doc.stellarmls.com/
  x-note: internal staff knowledgebase (GitBook), not API documentation
apis:
- aid: stellar-mls:stellar-mls-data-delivery
  name: Stellar MLS Data Delivery
  description: Stellar MLS listing data delivery program (API, IDX and custom options). The Web API is not served from a Stellar
    MLS host; it is distributed through MLS Grid and Bridge API (distribution vendors, not provider hosts), gated by a broker/vendor/Stellar
    three-party agreement. Demo data is available via an MLS Grid data consumer account.
  humanURL: https://www.stellarmls.com/data-delivery
  tags:
  - Real Estate
  - MLS
  - Listings
  - IDX
  properties:
  - type: Documentation
    url: https://www.stellarmls.com/data-delivery
  - type: Documentation
    url: https://irp.cdn-website.com/3d0f9886/files/uploaded/MLS%20Grid%20-%20Vendor%20Guide.pdf
  - type: TermsOfService
    url: https://irp.cdn-website.com/3d0f9886/files/uploaded/Broker+Data+Release+Agreement.pdf
  x-distribution-vendors:
  - name: MLS Grid
    url: https://docs.mlsgrid.com/
    note: distribution vendor, not a provider host
  - name: Bridge API
    url: https://bridgedataoutput.com/docs/platform/
    note: distribution vendor, not a provider host
x-coverage:
  state: none
  reason: no-developer-program
  method: derived
  generated: '2026-10-14'
  generator: derive-coverage.py (pre-flight evidence)
  detail: the company publishes no developer documentation host and no machine-readable contract on its own domain
  evidence:
  - url: https://www.stellarmls.com/mcp
    status: 403
  - url: https://bod.stellarmls.com/mcp
    status: 403
  - url: https://www.stellarmls.com
    status: 200
x-enrichment:
  date: '2026-10-14'
  status: enriched
  artifacts_added: 5
  pass: local-v5

Stellar MLS API — frequently asked questions

Does Stellar MLS have an API?

Yes. APIs.io lists 1 API from Stellar MLS, including Stellar MLS Data Delivery.

Is the Stellar MLS API ready for AI agents?

Stellar MLS has a Kin Score of 10.6 out of 100 (minimal) and an Agent Readiness score of 0.0 (human-only), scored by API Evangelist on 2026-11-06.

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get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
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