Validate Card Numbers in Google Sheets
Formula
Luhn-check card numbers by the row. =VERVE("cardvalidator", A2) flags validity and card type down a column — Sheets or Excel.
=VERVE("cardvalidator", A2)=VERVE.CALL("cardvalidator", A2)A2 holds the number you're looking up. Drag the formula down and each row resolves on its own.
With literal values
Nothing has to come from a cell — typed values work the same way.
=VERVE("cardvalidator", 4900264223817524)Inputs
Required inputs are positional, in the order below. Everything else is passed as a "name", value pair after them — the same shape as SUMIFS.
| Input | Type | Where it goes | Description |
|---|---|---|---|
numberRequired | string | argument 2 | The card number to validate (e.g. 4900264223817524) |
What lands in your sheet
With no "field" pair the formula spills the whole response as two columns — field name on the left, value on the right — starting at the cell you typed in. Make sure the cells below and to the right are empty.
Pulling one value
Add a "field" pair to get a single cell back instead of a table. The field name is the dot-path from the table below.
=VERVE("cardvalidator", A2, "field", "brand")=VERVE.CALL("cardvalidator", A2, "field", "brand")Available fields
#PREMIUM(field) rather than a value, so a locked field never looks like a real answer.| Use as "field" | Type | Example cell value | Description |
|---|---|---|---|
card | object | {…} | Card identification and validation details |
card.niceType | string | Visa | Human-readable card type name like Visa |
card.typePremium | string | visa | Machine-readable card type identifier |
card.patternsPremium | array | [4] | Starting digit patterns for card type |
card.gapsPremium | array | [4,8,12] | Character positions for spacing formatting |
card.lengthsPremium | array | [16,18,19] | Valid card length values in digits |
card.codePremium | object | {…} | Security code specifications for card |
card.code.name | string | CVV | Name of security code like CVV |
card.code.size | number | 3 | Number of digits in security code |
card.matchStrengthPremium | number | 1 | Confidence level of card type match |
brand | string | Visa | Human-readable card brand (e.g. Visa, Mastercard), or null if the scheme could not be identified |
cardNumber | string | 4900264223817524 | The validated card number provided |
bin | string | 490026 | The card's BIN/IIN (first 6 digits), or null if fewer than 6 digits were supplied |
last4 | string | 7524 | The last 4 digits of the card, or null if fewer than 4 digits were supplied |
isValid | boolean | true | Whether the card number is complete and passes the Luhn checksum |
isPotentiallyValid | boolean | true | Whether the number could still become valid (correct brand prefix but possibly incomplete) — useful while a user is still typing |
isTestCardPremium | boolean | false | Whether the number is a known published processor test card (Stripe, Adyen, etc.) rather than a live card |
riskScorePremium | number | 0 | Composite 0-100 risk score combining Luhn validity, test-card and scheme-recognition signals (higher is riskier) |
riskLevelPremium | string | low | Risk band derived from the score: low, medium or high |
Filling a whole column
Hand the first argument a range instead of a cell and the add-in makes one batched call for the lot, then spills the answers down. That is faster than dragging the formula and costs the same credits — one per row looked up.
=VERVE("cardvalidator", A2:A100, "field", "brand")=VERVE.CALL("cardvalidator", A2:A100, "field", "brand")A2:A100 is the column of number values. The result spills down alongside it, one row per input, blanks skipped.
When a cell doesn't fill
A failed lookup returns readable text starting with #ERR rather than a spreadsheet error, because Excel cannot show a custom message on a real error — you would get a bare #VALUE! with no reason. The trade-off is that IFERROR() won't catch it; test with LEFT(cell, 4) = "#ERR" instead.
| Cell reads | What happened |
|---|---|
#ERR Not connected | No API key saved. Open the side panel and connect your account. |
#ERR Replace <name> with a cell or value | The preview formula was copied as-is. Swap the placeholder for a cell reference. |
#ERR No "x" in cardvalidator | An option name that this source doesn't take. The message lists the ones it does. |
#ERR No data point "…" | The "field" path isn't in the response. Check the dot-path against the table above. |
#PREMIUM(field) | The field exists but your plan doesn't include it. |
#ERR Out of credits | The month's credits are spent. Usage resets on your billing date. |
Before the formula works
The add-in reads the API key you saved once in the side panel — the key never goes in the formula, so a shared sheet doesn't leak it and a collaborator without access simply sees the last calculated values.
- Install the add-in for Google Sheets or Excel.
- Open the side panel and sign in, or paste a key from your dashboard.
- Type the formula above into any cell.
Other ways to use Validate Card Numbers in Google Sheets
Set up Validate Card Numbers in Google Sheets on VerveSheets, or reach the same source a different way. Your VerveSheets account and credits work on all of them — one key, one balance.
Frequently asked questions
Does Validate Card Numbers in Google Sheets work in both Google Sheets and Excel?
Yes — the same source, the same arguments. Sheets calls it =VERVE("cardvalidator", …) and Excel calls it =VERVE.CALL("cardvalidator", …); that function name is the only difference.
Do the cells recalculate on their own?
They recalculate when the sheet does — on edit, on open, or on a manual recalc. Each recalculation is a fresh call and spends credits, so for a large static column it's worth copying the results and pasting them as values.
How many credits does a filled column cost?
1 credit per row looked up, whether you drag the formula or pass a range. The range form is one HTTP call instead of many, but the credit count is the same.
Can I share the sheet without sharing my key?
Yes. The key is stored against your account, not in the file. Collaborators see the values already in the cells; formulas only recalculate for someone who has connected their own account.
Why is a cell showing #ERR instead of an error?
So you can read the reason. Excel can't display a custom message on a real spreadsheet error, so the add-in returns the explanation as text on both platforms instead.