aid: willow
name: Willow
description: >-
  Willow Innovations, Inc. is a Mountain View, California consumer health-technology company founded
  in 2014 that makes wearable, in-bra breast pumps — the Willow 360, Willow Go and the Wave manual
  pump — sold direct to consumers at onewillow.com and paired with a mobile app that tracks output
  and controls suction. Willow publishes no developer programme, API keys or OpenAPI, but its
  storefront is an agent-callable surface: it serves a Universal Commerce Protocol merchant profile
  at /.well-known/ucp.json and a live, anonymous MCP endpoint at /api/ucp/mcp exposing 13 tools for
  catalog search, cart, checkout and order retrieval, alongside published agent instructions
  (agents.md, llms.txt) and OAuth 2.0/OIDC customer-account discovery documents.
image: https://onewillow.com/cdn/shop/files/OG-Image_db607121-7a26-49c9-b231-3a1e572a0fca_1200x630.jpg?v=1716782735
url: https://raw.githubusercontent.com/api-evangelist/willow/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-09-04'
modified: '2026-09-04'
tags:
- Company
- Consumer Health
- Breast Pumps
- Maternal Health
- Medical Devices
- Ecommerce
- Agentic Commerce
- MCP
- UCP
- agent-native
- Shopify
tags_raw:
- company
- consumer-health
- breast-pumps
- maternal-health
- medical-devices
- ecommerce
- agentic-commerce
- mcp
- ucp
- agent-native
- shopify
apis:
- name: Willow Pump UCP Commerce MCP
  description: >-
    Willow's storefront agent surface — a JSON-RPC 2.0 Model Context Protocol endpoint implementing
    the Universal Commerce Protocol 2026-08-25 shopping service. tools/list answers unauthenticated
    and returns 13 tools with full JSON Schema 2020-12 input schemas: search_catalog, lookup_catalog
    and get_product for the catalog; create/get/update/cancel_cart and create/get/update/complete/
    cancel_checkout for the purchase flow; and get_order behind a signed agent JWT. Every tools/call
    requires a resolvable UCP agent profile URI, complete_checkout requires an idempotency key, and
    payment requires explicit buyer approval. The runtime is Shopify's universal-commerce server
    running under Willow's own domain and transacting Willow's own catalog.
  humanURL: https://onewillow.com/agents.md
  baseURL: https://onewillow.com/api/ucp/mcp
  image: https://onewillow.com/cdn/shop/files/OG-Image_db607121-7a26-49c9-b231-3a1e572a0fca_1200x630.jpg?v=1716782735
  tags:
  - Agentic Commerce
  - MCP
  - UCP
  - Ecommerce
  - Consumer Health
  - agent-native
  tags_raw:
  - agentic-commerce
  - mcp
  - ucp
  - ecommerce
  - consumer-health
  - agent-native
  properties:
  - type: Documentation
    url: https://onewillow.com/agents.md
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/willow-domain-security.yml
- type: Website
  url: https://onewillow.com/
- type: Documentation
  url: https://onewillow.com/agents.md
- type: LLMsTxt
  url: llms/willow-llms.txt
- type: MCPServer
  url: mcp/willow-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: WellKnown
  url: well-known/willow-well-known.yml
- type: Authentication
  url: authentication/willow-authentication.yml
- type: OAuthScopes
  url: scopes/willow-scopes.yml
- type: Conventions
  url: conventions/willow-conventions.yml
- type: Idempotency
  url: conventions/willow-conventions.yml
- type: ErrorCatalog
  url: errors/willow-problem-types.yml
- type: Conformance
  url: conformance/willow-conformance.yml
- type: Lifecycle
  url: lifecycle/willow-lifecycle.yml
- type: DataModel
  url: data-model/willow-data-model.yml
- type: RateLimits
  url: rate-limits/willow-rate-limits.yml
- type: Plans
  url: plans/willow-plans-pricing.yml
- type: Support
  url: https://help.onewillow.com/s
- type: HelpCenter
  url: https://onewillow.com/pages/willow-support
- type: Blog
  url: https://onewillow.com/blogs/all
- type: SignUp
  url: https://onewillow.com/account
- type: TermsOfService
  url: https://onewillow.com/policies/terms-of-service
- type: PrivacyPolicy
  url: https://onewillow.com/policies/privacy-policy
x-enrichment:
  date: '2026-09-04'
  status: enriched
  artifacts_added: 23
  pass: local-v3