{"uid":"cap_a8TdhiS5RggGV4le9476P","slug":"number-to-words-converter-cardinal-ordinal-currency-c8777292","name":"Number to Words Converter (Cardinal, Ordinal, Currency)","description":"Spell a number in English words: cardinal, ordinal, or currency (dollars and cents) form for checks and invoices.","url":"https://api.24klabs.ai/api/number-to-words","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"form":{"type":"string"},"number":{"type":"number"}}},"responseSchema":{"type":"json","example":{"form":"cardinal","words":"one thousand two hundred thirty-four","number":1234}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_X_HPQPgw20TUk7LqqH2d0","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts a numeric value into its English word representation in cardinal, ordinal, or currency (dollars and cents) form for use in checks, invoices, and documents.","exampleAgentPrompt":"Spell out the number 4250.75 in currency form — dollars and cents — like you'd write it on a check.","exampleUseCases":[{"title":"Check amount in words","prompt":"I need to write a check for $2,847.50 — can you spell out that dollar amount in English words the way it appears on a paper check?"},{"title":"Invoice legal amount line","prompt":"Our invoice template needs the total of 10500 written out in full English words for the currency field — can you convert that for me?"},{"title":"Ordinal number for ranking","prompt":"Write out the number 23 as an ordinal in English words, like you'd say it in a ceremony — 'twenty-third' or however it should read."}],"resultDescription":"Returns the English word representation of the input number in the requested form: cardinal (e.g. 'one thousand forty-two'), ordinal (e.g. 'forty-second'), or currency (e.g. 'one thousand forty-two dollars and fifty cents').","failureModes":["Non-numeric input returns a validation error","Unsupported mode/form parameter returns a bad request error","Extremely large numbers may exceed supported range and return an error","Missing required fields (number or mode) result in a 400 response"],"whenToPreferThis":"Choose this endpoint when you need to programmatically spell out numbers in English for financial documents (checks, invoices), legal text, or user-facing content that requires written-out numbers. It handles cardinal, ordinal, and currency formats in a single call at low cost, making it ideal for document generation pipelines or form-filling agents.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:58:49.413Z","isFirstParty":false}