# KW Marketplace Subscription & Metered Billing API

**Canonical:** https://apis.io/apis/keller-williams/keller-williams-marketplace-subscription-api/  
**Provider:** Keller Williams — https://apis.io/providers/keller-williams/  
**Base URL:** https://partners.api.kw.com/v1  
**Documentation:** https://developer.kw.com/marketplace-documentation

KW Marketplace Subscription & Metered Billing API is one of 3 APIs that [Keller Williams](https://apis.io/providers/keller-williams/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Marketplace, Subscription, Billing, and Event. The published artifact set on APIs.io includes API documentation.

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.

## Machine-readable artifacts (9)

- **Documentation** — https://developer.kw.com/marketplace-documentation
- **Documentation** — https://developer.kw.com/metered-billing
- **Documentation** — https://developer.kw.com/subscription-lifecycle-walkthrough
- **Documentation** — https://developer.kw.com/docs-synchronous-subscription
- **Documentation** — https://developer.kw.com/docs-asynchronous-subscription
- **Documentation** — https://developer.kw.com/docs-error-codes-reference
- **Webhooks** — https://raw.githubusercontent.com/api-evangelist/keller-williams/refs/heads/main/asyncapi/keller-williams-marketplace-webhooks.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/keller-williams/refs/heads/main/errors/keller-williams-error-codes.yml
- **AgentSkill** — https://raw.githubusercontent.com/api-evangelist/keller-williams/refs/heads/main/skills/keller-williams-handle-marketplace-subscriptions.md

## Other Keller Williams APIs (2)

- [KW Worldwide Listings Search API](https://apis.io/apis/keller-williams/keller-williams-worldwide-listings-search-api/)
- [KW Partner Identity API (OpenID Connect)](https://apis.io/apis/keller-williams/keller-williams-partner-identity-api/)

## Tags

Marketplace, Subscription, Billing, Event

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/keller-williams/keller-williams-marketplace-subscription-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/keller-williams/.