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Liquid/Shopify Theme Linter
x402
Liquid/Shopify Theme Linter is a paid API for AI agents from api.webbersites.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).
Lints Liquid/Shopify template code or schema JSON, returning bugs with line numbers including block nesting errors, unknown tags/filters, JS-isms, deprecated syntax, and full schema validation.
Price / call$0.002
Success—
StatusUnknown
How this service works
Liquid / Shopify theme lint: POST {code}, get the bugs with line numbers. Deterministic — never rendered, no AI. Catches unbalanced/misnested blocks, unknown tags/filters with did-you-mean, the JS-isms every dev writes in Liquid (&&, !, ternaries, arithmetic in output, parens in conditions), deprecated img_url/include, and FULL {% schema %} validation: setting types, duplicate ids, range/select rules, blocks, presets. POST bare schema JSON to test just a schema. Max 128 KB.
Output
A list of lint findings, each with a line number, error type, description, and optionally a did-you-mean suggestion. Covers unbalanced/misnested blocks, unknown tags and filters, JS-isms (&&, !, ternaries, arithmetic in output, parentheses in conditions), deprecated syntax (img_url, include), and full schema validation errors (setting types, duplicate IDs, range/select rules, blocks, presets).
Example use cases
Pre-publish theme quality check
“Before I push this theme to production, can you scan all the Liquid files for bugs? I need to catch any unbalanced blocks, unknown filters, deprecated syntax, and schema validation errors with exact line numbers so I can fix them.”
CI/CD lint validation pipeline
“Set up automated linting on our theme repository — check every Liquid file and schema JSON that gets committed for syntax errors, JS-isms, misnested blocks, and unknown tags. Fail the build if critical issues are found.”
Custom section schema debugging
“I'm building a custom Shopify section but the schema isn't loading correctly. Can you validate the entire schema block for me? Check for duplicate setting IDs, invalid types, broken range/select rules, and any malformed blocks or presets.”
Technical details
Endpoint
POSThttps://api.webbersites.com/api/lint/liquid?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need deterministic, rule-based linting of Liquid/Shopify templates without any AI interpretation. It is the right choice for CI/CD pipelines, pre-publish checks, or any time you need structured error output with exact line numbers for Shopify theme code or section schemas.
Side effects
- Code exceeds 128 KB limit — returns error rejecting oversized input
- Malformed JSON when posting bare schema — returns parse error
- Empty or missing code field — returns validation error
- Network timeout for very complex templates near size limit
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"counts": {
"info": 0,
"error": 3,
"warning": 0
},
"issues": [
{
"hint": "use 'and'",
"line": 1,
"rule": "logic/js-operator",
"message": "'&&' is not Liquid (condition) — expressions with it fail",
"severity": "error"
}
],
"syntax": {
"ok": false,
"errors": [
{
"line": 3,
"rule": "syntax/unbalanced-block",
"message": "{% endfor %} closes {% for %}, but the innermost open block is {% if %} (line 1)",
"severity": "error"
}
]
},
"verdict": "errors",
"language": "liquid"
}
}Tags
x402
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