{"uid":"cap_LNQQkvBQ-knTb2X6OZ049","slug":"delx-email-syntax-check-09c2709a","name":"Delx Email Syntax Check","description":"Validate basic email syntax and split local/domain. Call when preflight before MX/DNS steps. Returns ok, local, domain as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.","url":"https://api.delx.ai/api/v1/x402/email-syntax-check","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"email":{"type":"string","description":"Email address to validate"}}},"responseSchema":{"type":"json","example":{"ok":true,"local":"user","domain":"example.com","schema":"delx/util-email-syntax-check/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_6lz9s6h7jVLjCYXl81-eX","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":"Validates the syntax of an email address and parses it into its local and domain components","exampleAgentPrompt":"Can you check whether 'john.doe@example.com' is a valid email address and tell me the local part and domain?","exampleUseCases":[{"title":"Form input validation before registration","prompt":"Before I store this user's email in the database, can you verify that 'jane_smith@mycompany.org' is syntactically valid and break it into username and domain?"},{"title":"Catch bad emails in scraped contact data","prompt":"I scraped a bunch of contact emails and one looks weird — can you check if 'support@@broken..com' passes basic email syntax validation?"},{"title":"Pre-flight check before sending newsletter","prompt":"Before we queue the newsletter send, verify that 'newsletter-subscriber@domain.io' is a properly formatted email address so we don't bounce it immediately."}],"resultDescription":"Returns a JSON object with an 'ok' boolean indicating whether the email is syntactically valid, the 'local' part (before the @), the 'domain' part (after the @), and a schema identifier string. No external lookup or deliverability check is performed — purely structural validation.","failureModes":["Missing or empty email field returns a validation error","Malformed input type (non-string) may return a 400-style error","Email with no @ symbol returns ok: false","Completely empty string input likely returns ok: false","Network timeout or service unavailability returns a 5xx error"],"whenToPreferThis":"Use this endpoint when you need a fast, cheap, deterministic syntax check on an email address — especially before persisting to a database, sending via SMTP, or passing to downstream services. It does not perform DNS or SMTP verification; choose it when structural validation is sufficient and you want the local/domain split as a bonus. At $0.001 per call it is cost-effective for high-volume form validation pipelines.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T07:14:48.911Z","isFirstParty":false}