Shopify MCP version support

GraphQL Admin API Troubleshooting
1

Wasn’t sure on the best category for this. But claude just said the following to me:

The MCP schema introspection only goes up to 2025-07 or unstable, so 2026-01 won’t be directly queryable there.

Is the MCP not kept up to date, almost a bit pointless sometimes if it isn’t.

1 Like
2

Hi @Luke!

When I just tested the MCP referencing a field that’s only available in version 2026-01, it was able to verify that it was valid.

For reference I just used:

const TEST_MUTATION_SCHEMA = `#graphql
          mutation AdjustInventoryTest(
              $input: InventoryAdjustQuantitiesInput!
            ) {
              inventoryAdjustQuantities(input: $input) {
                inventoryAdjustmentGroup {
                  id
                  createdAt
                  reason
                  changes {
                    name
                    delta
                    quantityAfterChange
                  }
                }
                userErrors {
                  field
                  message
                }
              }
            }
          `;

          const variables = {
            "input": {
              "reason": "correction",
              "name": "available",
              "changes": [
                {
                  "delta": 10,
                  "changeFromQuantity": 50,
                  "inventoryItemId": "gid://shopify/InventoryItem/123456789",
                  "locationId": "gid://shopify/Location/987654321"
                }
              ]
            }
          }

Was there a specific query or mutation that it failed to introspect correctly?

3

Hey Paige, it was attempting to query orders.

5

Hey @Luke

I’ve confirmed with the team who work on the Dev MCP and introspect_admin_schema should have access to the latest 2026-01 version of the API. It’s possible that you’re running an older version of MCP - in which can you just need to restart your IDE to update the MCP version.

6

Sounds like it might just be an AI hallucination on your end, thinking that 2026-01 isn’t available yet without even checking the MCP. I had an AI warn me that 2026-01 wasn’t available yet because it didn’t know that we are already in 2026 :upside_down_face:

2 Likes
7

Hey Liam, I had actually only just installed it with the following before I got this issue

claude mcp add --transport stdio shopify-dev-mcp -- npx -y @shopify/dev-mcp@latest
8

Hey @Luke - in that case I think it must simply be a hallucination?