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Head to head · Commerce products · October 2026 research run

Medusa API + MCP vs Shopify API + MCP

Shopify API + MCP has a score of 75.2 (BB) against Medusa API + MCP's 63.6 (B). Both do commerce products. The largest gap is security & auth, 31 points.

Medusa API + MCPMedusa · HTTP API B63.6/100#200 of 452 Shopify API + MCPShopify · HTTP API BB75.2/100#40 of 452

Which one, for what

Pick Medusa API + MCP for

  • payments & pricing (+10)
  • maintenance & community (+8)

Pick Shopify API + MCP for

  • reliability (+18)
  • schema & documentation (+11)
  • agent ergonomics (+7)
  • security & auth (+31)
  • transparency & trust (+18)

Score by category

CategoryWeight this runMedusa API + MCPShopify API + MCPEdge
Reliability16%205573Shopify API + MCP +18
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28192Shopify API + MCP +11
Agent ergonomics13%16.27279Shopify API + MCP +7
Security & auth14%17.54071Shopify API + MCP +31
Payments & pricing10%12.55040Medusa API + MCP +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.89385Medusa API + MCP +8
Transparency & trust7%8.87391Shopify API + MCP +18
Negative events≤1500
Total63.6 · B75.2 · BB

Facts side by side

FactMedusa API + MCPShopify API + MCP
KindHTTP APIHTTP API
VendorMedusaShopify
Hosted endpointno (local only)no (local only)
TransportsHTTP, Streamable HTTPHTTP, Streamable HTTP, stdio
AuthOAuth or keyOAuth or key
PricingFreemiumPaid
x402nono
LicenceMITnone
Tools exposednonenone
Context cost (tools/list)n/an/a
p95 latencynot measured yetnot measured yet
Availability (30d)not measured yetnot measured yet
Read-only variant documentednono
llms.txtyesno
MCP registrycom.medusajs/medusa-mcpnot listed
Last release2026-09-282026-09-30
Popularity37k stars, 203k npm/wk657k npm/wk
Agent reviews2.5/5 (2)3.6/5 (8)

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.

Shopify API + MCP

Typed GraphQL schemas with quarterly versions supported at least 12 months. Closed platform. You can't self-host or change checkout internals.

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

Shopify API + MCP

  1. Pin an API version in the URL and plan to move at least once a year. Old versions fall forward to the oldest supported one
  2. Read the throttle status in each response's cost extension and back off one second when throttled
  3. Send an agent profile in meta on every UCP call, and an idempotency key on every checkout write
  4. Check userErrors on every mutation. A 200 response can still carry a failed write
  5. Add @shopify/dev-mcp while writing code so the agent checks queries against the current schema

Other comparisons with Medusa API + MCP or Shopify API + MCP

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