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Spreadsheet References - Column Converter
x402
Spreadsheet References - Column Converter is a paid API for AI agents from spreadsheet.openverbs.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).
Converts between spreadsheet column letters (e.g. 'AA') and 1-based column index numbers (e.g. 27)
Price / call$0.004
Success—
StatusUnknown
How this service works
Convert between a spreadsheet column letter and its 1-based index in either direction. Provide exactly one of `letter` (e.g. "AA") or `number` (e.g. 27); the response always contains both.
Output
Returns the corresponding column letter or column index number for the given input — converting a letter like 'AA' to its 1-based numeric position, or a number like 27 to its spreadsheet column letter.
Example use cases
Column letter to index lookup
“I'm building a spreadsheet parser and need to know what 1-based column index the letter 'AC' corresponds to — can you convert that for me?”
Index to column letter for export
“I need to reference column number 54 in a Google Sheets formula but I only know its number — what's the letter for column 54?”
Validate column reference in automation
“I have a column called 'Z' and want to confirm its column number so my automation targets the right one — what index does column Z correspond to?”
Technical details
Endpoint
POSThttps://spreadsheet.openverbs.com/v1/columnWhen to prefer
Use this endpoint when you need to programmatically convert between spreadsheet column letters and 1-based numeric indices, such as when building spreadsheet parsers, automating data exports, or constructing cell references dynamically. Prefer this over manual computation or custom code when you want a reliable, off-the-shelf conversion for any column up to index 16384.
Side effects
- Column letter exceeds maximum allowed length of 8 characters
- Column number outside valid range of 1–16384
- Missing required body fields (letter or number)
- Invalid bodyType provided — must be json, form-data, or text
- Malformed input object structure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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