{"uid":"cap_eG8EnOdFIJx402mPTNiJu","slug":"one-engine-even-number-check-17b7ab25","name":"ONE Engine Even Number Check","description":"Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.","url":"https://one-search.one-engine.workers.dev/v1/number/even?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"value":{"type":"integer"}}},"responseSchema":{"type":"json","example":{"even":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0009","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":"$0.0009/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0009","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0009","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_HVmJ0XewMQ9ofo9GPbdR-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0009","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 integer is even or odd, returning a boolean result.","exampleAgentPrompt":"Is the number 144 even or odd?","exampleUseCases":[{"title":"Parity gate in agent pipeline","prompt":"Before processing this batch, check if 256 is even so we know whether to split it into two equal halves."},{"title":"Odd/even branching logic","prompt":"I need to know if 37 is even — my workflow needs to take a different path depending on the answer."},{"title":"Input validation for a game","prompt":"The player just entered 88 as their guess — can you confirm whether that number is even before advancing the round?"}],"resultDescription":"A JSON object with a single boolean field 'even': true if the input integer is divisible by 2, false if it is odd.","failureModes":["Missing or non-integer 'value' field returns a validation error","Non-numeric input (e.g. string or float) may be rejected or produce unexpected results","Payment failure via x402 results in a 402 response before computation occurs","Network timeout on Cloudflare Workers edge in rare cases"],"whenToPreferThis":"Choose this endpoint when an agent needs a lightweight, deterministic, pay-per-call parity check without spinning up local compute — useful in serverless pipelines where even a simple arithmetic check benefits from an auditable, on-chain micropayment trail via x402 on Base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:43:11.700Z","isFirstParty":false,"canonicalSlug":"one-engine-even-number-check-17b7ab25"}