aid: keller-williams name: Keller Williams kind: company url: https://raw.githubusercontent.com/api-evangelist/keller-williams/refs/heads/main/apis.yml description: >- Keller Williams Realty, Inc. (KWRI) is an Austin, Texas headquartered residential real estate franchisor and the largest real estate brokerage franchise in the United States by agent count, operating more than 1,000 market centers worldwide through independently owned and operated offices. In the value chain Keller Williams sits at the brokerage and agent-platform layer, not the data-cooperative layer: it franchises brokerages, and it builds and operates KW Command, a proprietary agent operating system for lead, contact, task, listing, opportunity and marketing management, plus the KW Marketplace where third-party vendors sell integrated products to KW agents. Its API posture is real but partner-gated. Keller Williams runs a genuine Apigee-backed developer portal (DevHub) at developer.kw.com with a live gateway at partners.api.kw.com and a sandbox at sandbox.partners.api.kw.com, an OpenID Connect authorization server whose discovery document is publicly readable, and a published API License Agreement. Access is not self-serve: a developer must submit a partnership application through the "Apply to Integrate" form, be approved by KWRI, receive a DevHub account, then sign the KW API License Agreement and Terms of Use before receiving an API key and secret. Only one API — KW Worldwide Listings Search — is visible anonymously in the API catalog; the rest of the catalog (Command MC, Contact and Lead Data, Tasks, Opportunity/Deal/ Transaction Data, User/Organization/Role Information, Marketplace Subscription Management, Internal) is behind a SAML member login. On the sector's central question, Keller Williams carries no RESO posture at all: it is absent from the RESO certification directory, no RESO Web API, Data Dictionary, OData $metadata or Universal Property Identifier reference appears anywhere in its developer portal or specification, and its own listings spec states in its description that the service "is not a substitution for or tied to any Multiple Listings Services database records." This is a brokerage's own listing and CRM data behind a commercial partner agreement, not licensed MLS data behind a certified standard. image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/groq.png tags: - Real Estate - United States - Residential Real Estate - Brokerage - Franchise - Property Listings - PropTech - Agent Platform - CRM - Partner APIs - Marketplace - Austin Texas created: '2026-07-26' modified: '2026-07-26' specificationVersion: '0.19' apis: - aid: keller-williams:keller-williams-worldwide-listings-search-api name: KW Worldwide Listings Search API description: >- The only Keller Williams API whose specification is published anonymously in the DevHub API catalog. The KW Worldwide Listings service returns Keller Williams Listing Service (KWLS) listings scoped to a KW Worldwide region, and supports listing create, update and delete plus a lookup table of controlled vocabularies (property types, statuses, flooring, roof type, appliances, currency, country, state/province and more) and an organization-people lookup. The published OpenAPI 3.0.1 document declares 5 paths and 8 operations against a production and a sandbox server. The spec's own description states the service is not a substitution for, or tied to, any Multiple Listing Service database records. Access requires an approved DevHub application; requests carry an API key plus a Basic or Bearer credential. humanURL: https://developer.kw.com/docs/listingskww/1/overview baseURL: https://partners.api.kw.com/v2 tags: - Property Listings - Search - KW Worldwide - KWLS properties: - type: OpenAPI url: openapi/keller-williams-listings-search-openapi.json - type: Documentation url: https://developer.kw.com/docs/listingskww/1/overview - type: APIReference url: https://developer.kw.com/docs/listingskww/1/routes/listings/get - type: Documentation url: https://developer.kw.com/filtering-and-sorting - type: Sandbox url: https://sandbox.partners.api.kw.com/v2 - type: Sandbox url: sandbox/keller-williams-sandbox.yml - type: Overlay url: overlays/keller-williams-listings-search-overlay.yaml - type: Examples url: examples/keller-williams-listings-search-examples.json - type: ErrorCatalog url: errors/keller-williams-problem-types.yml - type: DataModel url: data-model/keller-williams-data-model.yml - type: Arazzo name: Publish a KW Worldwide listing url: arazzo/keller-williams-publish-listing.yml - aid: keller-williams:keller-williams-partner-identity-api name: KW Partner Identity API (OpenID Connect) description: >- Keller Williams uses OpenID Connect on top of OAuth 2.0 to grant a partner application access to an individual KW user's Command data. The authorization server at partners.api.kw.com/idp serves a publicly readable OpenID Connect discovery document advertising authorize, token, introspect, userinfo, revoke, end_session and device_authorization endpoints, RS256 ID tokens, PKCE S256, and 40 supported scopes covering contacts, tasks, listings, organizations, users, opportunities, recruiting and marketing profiles. The DevHub Getting Started guide documents the authorization-code flow, the consent screen, token exchange with base64 client_secret_basic credentials, and logout via the revoke endpoint. A separate partner token-refresh endpoint is documented under /v2/oauth2/partner/token. humanURL: https://developer.kw.com/getting-started baseURL: https://partners.api.kw.com/idp tags: - Authentication - OpenID Connect - OAuth 2.0 - Scopes properties: - type: OpenIDConnectDiscovery url: authentication/keller-williams-openid-configuration.json - type: Documentation url: https://developer.kw.com/getting-started - type: Documentation url: https://developer.kw.com/docs-authentication - type: Documentation url: https://developer.kw.com/docs-refresh-token - type: Authentication url: authentication/keller-williams-authentication.yml - type: OAuthScopes url: scopes/keller-williams-scopes.yml - type: WellKnown url: well-known/keller-williams-well-known.yml - aid: keller-williams:keller-williams-marketplace-subscription-api name: KW Marketplace Subscription & Metered Billing API description: >- The partner-facing surface behind the KW Marketplace, where vendors sell products to Keller Williams agents. Keller Williams pushes subscription lifecycle events — subscription creation, subscription creation for teams, subscription change, subscription cancel, status notification, user assignment and user unassignment — to a partner's secured HTTPS endpoint registered with the KW team, and partners report consumption back through a pre-configured metered billing endpoint that accepts a quantity and unit type per account. Sample payloads, synchronous and asynchronous subscription flows, an error-code reference and a subscription lifecycle walkthrough are published publicly on DevHub; no OpenAPI document is offered for this surface. humanURL: https://developer.kw.com/marketplace-documentation baseURL: https://partners.api.kw.com/v1 tags: - Marketplace - Subscriptions - Billing - Events properties: - type: Documentation url: https://developer.kw.com/marketplace-documentation - type: Documentation url: https://developer.kw.com/metered-billing - type: Documentation url: https://developer.kw.com/subscription-lifecycle-walkthrough - type: Documentation url: https://developer.kw.com/docs-synchronous-subscription - type: Documentation url: https://developer.kw.com/docs-asynchronous-subscription - type: Documentation url: https://developer.kw.com/docs-error-codes-reference - type: Webhooks url: asyncapi/keller-williams-marketplace-webhooks.yml - type: ErrorCatalog url: errors/keller-williams-error-codes.yml - type: AgentSkill url: skills/keller-williams-handle-marketplace-subscriptions.md common: - type: AgenticAccess url: agentic-access/keller-williams-agentic-access.yml - type: DomainSecurity url: security/keller-williams-domain-security.yml - type: Authentication url: authentication/keller-williams-authentication.yml - type: OAuthScopes url: scopes/keller-williams-scopes.yml - type: Conventions url: conventions/keller-williams-conventions.yml - type: ErrorCatalog url: errors/keller-williams-error-codes.yml - type: Lifecycle url: lifecycle/keller-williams-lifecycle.yml - type: StatusPage url: https://status.kw.com/ - type: Deprecation url: https://developer.kw.com/base-path-migration-guide - type: Conformance url: conformance/keller-williams-conformance.yml - type: DataModel url: data-model/keller-williams-data-model.yml - type: Packages url: packages/keller-williams-packages.yml - type: WellKnown url: well-known/keller-williams-well-known.yml - type: Webhooks url: asyncapi/keller-williams-marketplace-webhooks.yml - type: AgentSkill url: skills/_index.yml - type: Arazzo name: Publish a KW Worldwide listing url: arazzo/keller-williams-publish-listing.yml - type: LLMsTxt url: llms/keller-williams-llms.txt - type: Website url: https://www.kw.com/ - type: DeveloperPortal url: https://developer.kw.com/ - type: Documentation url: https://developer.kw.com/getting-started - type: GettingStarted url: https://developer.kw.com/getting-started - type: APIReference url: https://developer.kw.com/docs/listingskww/1/overview - type: APICatalog url: https://developer.kw.com/apis - type: SignUp url: https://share.hsforms.com/2JQHe7zfKRLSo_cXKjy-5nwbg45/ - type: TermsOfService url: https://developer.kw.com/terms-and-conditions - type: PrivacyPolicy url: https://legal.kw.com/privacy-policy - type: License url: https://developer.kw.com/api-license-agreement - type: Support url: https://developer.kw.com/support - type: Marketplace url: https://marketplace.kw.com/ - type: News url: https://kwri.kw.com/ - type: Blog url: https://outfront.kw.com/ - type: BlogRSS url: https://outfront.kw.com/feed/ - type: GitHubOrganization url: https://github.com/KWRI - type: LinkedIn url: https://www.linkedin.com/company/keller-williams-realty maintainers: - FN: Kin Lane email: kin@apievangelist.com