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Glama

Moltline Shopify Prep

Server Details

Check a product CSV, handles, variant matrices and metafield keys. 4 of 6 free.

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Healthy
Last Tested
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Streamable HTTP
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Available Tools

6 tools
bulk_price_changeBulk Price Change
Read-onlyIdempotent
Inspect

Apply one pricing rule across a list of prices and show the effect. PREMIUM (license).

Percentage first, then the flat amount, then rounding — stated explicitly because the order changes the answer. Typical input {"prices": [19.99, 24.5], "change_pct": 10, "charm_ending": ".99"} returns {"rows": [{"was": 19.99, "now": 21.99}, {"was": 24.5, "now": 26.99}], "total_was": 44.49, "total_now": 48.98, "uplift_pct": 10.09}.

Use when repricing a catalogue before export. Not for what a price nets you after Shopify's fees — that is payout_estimate. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": ""} (for example {"error": "prices must contain at least one price"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

ParametersJSON Schema
NameRequiredDescriptionDefault
pricesYesCurrent prices, at least one, each greater than 0.
round_toNoRounding increment applied last, e.g. 0.01 or 0.05. Default 0.01.
change_pctNoPercentage change applied first, e.g. 10 to raise by 10% or -5 to cut by 5%. Default 0.
change_flatNoFlat amount applied after the percentage. Default 0.
charm_endingNoForce every price to end in these cents, e.g. ".99" or ".95". Applied after rounding. Empty by default.

Output Schema

ParametersJSON Schema
NameRequiredDescription

No output parameters

metafield_key_checkMetafield Key Check
Read-onlyIdempotent
Inspect

Validate a metafield namespace and key before you define it. FREE.

Shopify metafield namespaces and keys are lowercase alphanumerics and underscores; a capital letter or a dash is rejected at definition time, usually after the rest of the import has already run. Typical input {"namespace": "custom", "key": "Care-Instructions"} returns {"ok": false, "problems": ["key: dashes and capitals are not allowed"], "suggested_key": "care_instructions"}.

Use when designing metafields. Not for the CSV column that carries them — that is product_csv_check. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": ""}. Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

ParametersJSON Schema
NameRequiredDescriptionDefault
keyYesThe metafield key, e.g. "care_instructions".
namespaceYesThe metafield namespace, e.g. "custom".
value_typeNoThe intended metafield type, echoed back for your record, e.g. "single_line_text_field". Not validated against Shopify's type list, which changes.single_line_text_field

Output Schema

ParametersJSON Schema
NameRequiredDescription

No output parameters

payout_estimatePayout Estimate
Read-onlyIdempotent
Inspect

Estimate what actually lands in the bank after processing fees. PREMIUM (license).

Typical input {"order_total": 84.5, "fee_pct": 2.9, "fee_fixed": 0.3, "orders": 120, "refund_rate_pct": 4} returns {"gross": 10140.0, "fees": 330.06, "refunds": 405.6, "net_payout": 9404.34, "effective_fee_pct": 3.26}.

Use for cash-flow planning. Not as an authoritative fee schedule: rates depend on your plan, country and card mix, so pass your own. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": ""}. Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

ParametersJSON Schema
NameRequiredDescriptionDefault
ordersNoHow many orders to model. Default 1.
fee_pctNoPercentage fee per transaction. Default 2.9 — a common published rate, not a promise about your account.
fee_fixedNoFixed fee per transaction. Default 0.30.
order_totalYesValue of one order including anything the processor takes a percentage of. Must be greater than 0.
refund_rate_pctNoShare of order value refunded, as a percentage. Default 0.

Output Schema

ParametersJSON Schema
NameRequiredDescription

No output parameters

product_csv_checkProduct Csv Check
Read-onlyIdempotent
Inspect

Check a product CSV's header row against Shopify's current columns. FREE.

Catches the failure that wastes the most time: a template copied from an out-of-date guide, using column names Shopify renamed. Typical input {"header_row": ["Handle", "Title", "Body (HTML)", "Variant Price"]} returns {"ok": false, "missing_required": [], "renamed": [{"found": "Handle", "use": "URL handle"}, ...], "unrecognised": [], "verdict": "..."}.

Use before an import, on the header row alone. Not for whether the values in the rows are valid — check a handle with url_handle and a metafield key with metafield_key_check. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": ""} (for example {"error": "header_row must contain at least one column name"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

ParametersJSON Schema
NameRequiredDescriptionDefault
modeNo"new" when creating products, where Shopify requires only Title; "update" when changing existing ones, where it also requires URL handle. Default "new".new
header_rowYesThe CSV's first row as a list of column names, exactly as written in the file, e.g. ["Handle", "Title", "Variant Price"].

Output Schema

ParametersJSON Schema
NameRequiredDescription

No output parameters

url_handleUrl Handle
Read-onlyIdempotent
Inspect

Turn a product title into a valid, unique Shopify URL handle. FREE.

Shopify handles are lowercase, may contain letters, numbers and dashes, and may not contain spaces. Typical input {"title": "Men's Merino Wool Socks (2-Pack)"} returns {"handle": "mens-merino-wool-socks-2-pack", "valid": true, "changed": true, "collisions": []}.

Use when generating handles for an import, or checking one you already have. Not for validating a whole header row — that is product_csv_check. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": ""} (for example {"error": "title must not be empty"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

ParametersJSON Schema
NameRequiredDescriptionDefault
titleYesThe product title or a candidate handle, e.g. "Men's Merino Wool Socks".
existingNoHandles already used in the store or the file, so a collision can be reported and a suffixed alternative suggested. Optional.

Output Schema

ParametersJSON Schema
NameRequiredDescription

No output parameters

variant_matrixVariant Matrix
Read-onlyIdempotent
Inspect

Count the variants a set of options produces, and flag the ceilings. FREE.

Option counts multiply, so three modest lists become a number nobody intended. Typical input {"options": {"Size": ["S", "M", "L"], "Colour": ["Black", "Navy"]}} returns {"option_count": 2, "variant_count": 6, "within_limits": true, "per_option": {"Size": 3, "Colour": 2}}.

Use before building an import file, to find out whether the catalogue needs splitting into several products. Not for validating the resulting CSV's columns — that is product_csv_check. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": ""} (for example {"error": "options must contain at least one option"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

ParametersJSON Schema
NameRequiredDescriptionDefault
optionsYesOption names mapped to their values, e.g. {"Size": ["S", "M"], "Colour": ["Black"]}. Each list needs at least one value.
list_rowsNoWhen true, also return every variant combination. Off by default because the list can be very large.
max_optionsNoCeiling on distinct option names. Default 3.
max_variantsNoCeiling to check against. Default 2048, which is the limit Shopify announced on 15 October 2025, up from 100. Override it if your plan differs.

Output Schema

ParametersJSON Schema
NameRequiredDescription

No output parameters

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