{"uid":"cap_dIYAXJakpq3A0hPtbpThc","slug":"email-plus-tag-rejection-checker-b86e188c","name":"Email Plus-Tag Rejection Checker","description":"Call when an agent needs whether an email is rejected because the local part contains a plus tag. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-email-plus-reject first.","url":"https://agentshelf.syntexa.ch/v1/check-email-plus-reject?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":["agent+tag@example.com"],"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":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_fWLbDE1XtFeJXzpf3Ubbc","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether an email address would be rejected specifically because its local part contains a plus tag (e.g. user+tag@example.com).","exampleAgentPrompt":"Can you check if the email address 'alice+newsletter@example.com' would be rejected specifically because it contains a plus tag in the local part?","exampleUseCases":[{"title":"Sign-up form email filter audit","prompt":"We're seeing some user registrations fail — can you check whether 'john+promo@company.com' is getting rejected because of the plus tag in the email address?"},{"title":"Email alias compatibility check","prompt":"I want to know if 'me+spam@gmail.com' would be flagged and rejected purely because of the plus sign before I use it to sign up for a service."},{"title":"Automated form validation pipeline","prompt":"Run a check on 'support+ticket42@helpdesk.org' and tell me if the rejection is due to the plus tag in the local part of the email."}],"resultDescription":"Returns a boolean or status indicating whether the email address is rejected specifically because its local part contains a plus tag, helping distinguish plus-tag-related rejections from other email validation failures.","failureModes":["Empty or missing input value returns validation error","Input exceeding 20000 characters rejected","Malformed JSON body causes 400 error","Network timeout or service unavailability returns 5xx","Ambiguous result if input is not a recognizable email string"],"whenToPreferThis":"Use this endpoint when you need to specifically isolate whether email rejection is caused by a plus tag (subaddress) in the local part, rather than other syntax errors. Prefer the free sandbox endpoint POST /v1/sandbox/check-email-plus-reject first; fall back to this paid endpoint when the sandbox is unavailable or rate-limited.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:50:08.001Z","isFirstParty":false,"canonicalSlug":"email-plus-tag-rejection-checker-b86e188c"}