{"uid":"cap_47HD1Gd-48Lqk5j5-zboo","slug":"delx-is-int-string-afbec54b","name":"Delx Is Int String","description":"Check whether a string is a signed integer. Call when you validate numeric form fields before parse. Returns valid boolean for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.","url":"https://api.delx.ai/api/v1/x402/is-int-str?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"text":{"type":"string","description":"Input field: text."}}},"responseSchema":{"type":"json","example":{"text":"42","valid":true,"schema":"delx/util-is-int-str/v1"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3LrvqG_AlmjxwL9O4oZkl","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a given string represents a valid signed integer, returning a boolean result.","exampleAgentPrompt":"Can you check whether the string '-42' is a valid signed integer before I try to parse it?","exampleUseCases":[{"title":"Form field numeric validation","prompt":"Before I submit this form, can you check if the string '007' is a valid signed integer so I know it's safe to parse?"},{"title":"User input sanity check","prompt":"A user typed '-9999' into our age field — can you verify that's a valid signed integer string before we process it?"},{"title":"Pipeline data type guard","prompt":"I have the value '3.14' coming through my pipeline and I need to know if it's a signed integer string before passing it to the integer parser — can you check?"}],"resultDescription":"Returns a boolean indicating whether the provided text string represents a valid signed integer (positive or negative whole number with no decimal point or non-numeric characters).","failureModes":["Missing or empty 'text' field returns an error or false result","Non-string input type may cause a validation error","Payment failure via x402 if USDC balance is insufficient","Network timeout producing no response"],"whenToPreferThis":"Use this endpoint when you need a lightweight, stateless check to confirm a string is a parseable signed integer before performing actual parsing — especially useful in form validation pipelines, data ingestion guards, or agent workflows that need to branch on numeric type without executing a full parse. Prefer it over regex-based checks in environments where you want a managed, consistent validation rule without writing custom code.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T18:54:06.291Z","isFirstParty":false,"canonicalSlug":"delx-is-int-string-afbec54b"}