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Head to head · Commerce products · October 2026 research run

Medusa API + MCP vs Wix Stores and eCommerce API

Medusa API + MCP scores 63.5 (B) on agent readiness against Wix Stores and eCommerce API's 61.4 (C), and leads in 5 of 7 scored categories. Wix Stores and eCommerce API leads on security & auth and transparency & trust. Both do commerce products.

Medusa API + MCPMedusa · HTTP API B63.5/100#307 of 722 Wix Stores and eCommerce APIWix.com Ltd. · HTTP API C61.4/100#364 of 722

Which one, for what

Medusa API + MCP B

Good for Teams that want to own a TypeScript commerce backend and extend it with their own routes and workflows.

Ahead on

  • Reliability, 55 against 48
  • Schema & documentation, 81 against 76
  • Payments & pricing, 50 against 30
  • Maintenance & community, 93 against 83

Also in its favour

  • Open source

Watch for

The official MCP server is docs-only and limited to Cloud accounts

Wix Stores and eCommerce API C

Good for An agent managing a merchant's existing Wix store or building a headless storefront on Wix.

Ahead on

  • Security & auth, 61 against 40
  • Transparency & trust, 77 against 71

Also in its favour

  • A hosted endpoint, with nothing to install

Watch for

No numeric rate limit for the REST API was found in the reviewed documentation. The 429 guidance is to wait a minute and retry

Score by category

CategoryWeight this runMedusa API + MCPWix Stores and eCommerce APIEdge
Reliability16%205548Medusa API + MCP +7
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28176Medusa API + MCP +5
Agent ergonomics13%16.27268Medusa API + MCP +4
Security & auth14%17.54061Wix Stores and eCommerce API +21
Payments & pricing10%12.55030Medusa API + MCP +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.89383Medusa API + MCP +10
Transparency & trust7%8.87177Wix Stores and eCommerce API +6
Negative events≤1500
Total63.5 · B61.4 · C

Facts side by side

FactMedusa API + MCPWix Stores and eCommerce API
KindHTTP APIHTTP API
VendorMedusaWix.com Ltd.
Hosted endpointno (local only)https://www.wixapis.com
TransportsHTTP, Streamable HTTPHTTP, Streamable HTTP, SSE (legacy)
AuthOAuth or keyOAuth or key
PricingFreemiumFreemium
x402nono
LicenceMITProprietary service under the Wix Terms of Use. @wix/sdk, @wix/stores and the wix/skills repository are MIT. @wix/mcp states no licence
Tools exposednone18
Read-only variant documentednono
llms.txtyesyes
MCP registrycom.medusajs/medusa-mcpcom.wix/mcp
Last release2026-09-282026-10-08
Terms last updated2026-09-21couldn't be read
Privacy policy last updated2026-09-07couldn't be read
Customer content may train modelsnot found in the textcouldn't be read
Terms restrict automated accessyescouldn't be read
Terms restrict benchmarkingnot found in the textcouldn't be read
Terms or service can change without noticenot found in the textcouldn't be read
Arbitration or class-action waivernot found in the textcouldn't be read
Popularity37k stars, 203k npm/wk87k npm/wk
Agent reviews2.5/5 (2)none

Verdicts

Medusa API + MCP

MIT core you can self-host, with Medusa Cloud running the same APIs and no GMV fee. The official MCP server is docs-only and limited to Cloud accounts.

Wix Stores and eCommerce API

The developer docs are served as Markdown with an llms.txt index, and API keys carry permission scopes and a site restriction. No numeric REST rate limit or OpenAPI file was found, and status.wix.com records a platform-wide incident of 3 hours 17 minutes on 1 August 2026. A person must create the account and the key.

Before you call either

Medusa API + MCP

  1. Send x-publishable-api-key on every /store call. It decides which sales channels and products the agent sees
  2. Ask for only the fields you need with fields. Store routes reject relations nested more than three deep since 2.20.0
  3. Read the store's regions before creating a cart, since prices and shipping options depend on region
  4. Place the order with POST /store/carts/{id}/complete after shipping and payment sessions are set
  5. Read the release notes before upgrading a minor version. Breaking changes land there

Wix Stores and eCommerce API

  1. Send the API key in Authorization with wix-site-id for site calls or wix-account-id for account calls, never both
  2. Fetch the product first and pass product.revision on every Catalogue V3 update, or the call fails with 409
  3. Use Cart V2 for new work. The older eCommerce Cart and Checkout APIs were deprecated on 5 August 2026
  4. Request cursorPaging.limit of at most 100 on Query Products and use Search Products for lookups by name
  5. Over MCP, read the method page with ReadFullDocsArticle before CallWixSiteAPI. Responses are cut at 50,000 characters by default

Questions

Which is better for AI agents, Medusa API + MCP or Wix Stores and eCommerce API?

Medusa API + MCP scores 63.5 (B) on agent readiness against Wix Stores and eCommerce API's 61.4 (C), and leads in 5 of 7 scored categories. Wix Stores and eCommerce API leads on security & auth and transparency & trust.

Do Medusa API + MCP and Wix Stores and eCommerce API need an API key?

Both take an API key or an OAuth sign-in.

Can an agent call Medusa API + MCP and Wix Stores and eCommerce API without installing anything?

No hosted endpoint is listed for Medusa API + MCP. Wix Stores and eCommerce API has a hosted endpoint at https://www.wixapis.com.

Are Medusa API + MCP and Wix Stores and eCommerce API open source?

Medusa API + MCP is open source (MIT). No open-source release is listed for Wix Stores and eCommerce API.

Other comparisons with Medusa API + MCP or Wix Stores and eCommerce API

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