{"uid":"cap_5eqpX1AycC6SmV65d_wFj","slug":"agentshelf-mod-97-check-ae0c88c8","name":"AgentShelf Mod-97 Check","description":"Call when an agent needs whether a numeric string is 1 mod 97. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/check-mod97 first.","url":"https://agentshelf.syntexa.ch/v1/check-mod97?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"data":{"description":"JSON value for schema-check SKUs. Omit it on string checks such as email or IBAN."},"value":{"type":"string","examples":["98"],"maxLength":20000,"minLength":1,"description":"Value to check. The route description names the format: email, phone, IBAN, postal code, VAT, national id, or similar."},"schema":{"description":"JSON Schema document for schema-check SKUs. Omit it on string checks."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_iGkGijweFhT69iR_h0stK","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a numeric string satisfies the modulo-97 condition (i.e., the string mod 97 equals 1), used in IBAN and other financial identifier validation.","exampleAgentPrompt":"Can you check if the numeric string '3214282912345698765432' satisfies the mod-97 rule — that is, whether it equals 1 when divided modulo 97?","exampleUseCases":[{"title":"IBAN check digit pre-validation","prompt":"Before I submit this IBAN to the bank API, can you verify that the rearranged numeric string '3214282912345698765432' passes the mod-97 test — meaning it's 1 mod 97?"},{"title":"Custom financial identifier validation","prompt":"I'm building a payment reference number system that uses mod-97 check digits. Can you check whether '271500060200000340340282' is valid, i.e. equals 1 when taken mod 97?"},{"title":"Bulk data integrity spot-check","prompt":"I have a numeric code from an exported record: '521000000000000000000000000000000000001'. Does it pass the mod-97 validity check — is it congruent to 1 mod 97?"}],"resultDescription":"Returns whether the provided numeric string satisfies the mod-97 condition (i.e., the integer value of the string modulo 97 equals 1), typically as a boolean or equivalent validity indicator.","failureModes":["Input string contains non-numeric characters — likely returns a validation error","Input string is empty or exceeds the 20,000 character limit — rejected by schema validation","Payment of $0.003 USDC not provided — returns 402 Payment Required; use the free sandbox endpoint POST /v1/sandbox/check-mod97 instead","Network timeout or service unavailability — no result returned"],"whenToPreferThis":"Use this endpoint when you need to verify that an arbitrary numeric string satisfies the mod-97 checksum rule (result ≡ 1 mod 97), especially for large numbers exceeding native integer precision. Prefer the free sandbox endpoint POST /v1/sandbox/check-mod97 for testing or when cost matters. Use the sibling IBAN-specific endpoints (GI, HR, HU, etc.) when validating a specific country's IBAN format, as they enforce length and country-code rules in addition to mod-97.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:50:02.332Z","isFirstParty":false,"canonicalSlug":"agentshelf-mod-97-check-ae0c88c8"}