{"uid":"cap_4Vaon2bBmkZXI79W6uSgu","slug":"mailpulse-address-verification-d24ef0c9","name":"MailPulse Address Verification","description":"Verify a mailing address before sending physical mail through it. Wraps Lob's US and international address verification engines: standardizes the address, flags undeliverable/incomplete addresses, and returns a deliverability verdict. Run this before /api/quote and /api/letters to avoid paying to print and post a letter that will bounce.","url":"https://mailpulse.theaslangroupllc.com/api/verify-address","method":"POST","headers":{},"bodySchema":{"type":"object","required":["address"],"properties":{"address":{"type":"object","description":"Address to verify: address_line1 (required), address_line2, address_city, address_state, address_zip, address_country (ISO-2, default US)"}}},"responseSchema":{"type":"json","example":{"mode":"test","country":"US","deliverable":true,"standardized":{"address_zip":"94107-1741","address_city":"SAN FRANCISCO","address_line1":"185 BERRY ST STE 6100","address_state":"CA"},"deliverability":"deliverable"}},"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_pf7kFQItjaL4KNJN7BEm0","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":"Validates and standardizes a US or international mailing address, returning a deliverability verdict before sending physical mail","exampleAgentPrompt":"Before I print the letter, can you verify that '742 Evergreen Terrace, Springfield, IL 62704, USA' is a real, deliverable address and give me the standardized version?","exampleUseCases":null,"resultDescription":"Returns a deliverability verdict (deliverable, undeliverable, or incomplete), the standardized/normalized form of the address, and individual address component breakdowns — helping the agent decide whether to proceed with printing and mailing.","failureModes":["Address not found in USPS or international database — returns undeliverable verdict","Incomplete address input (missing street number or postal code) — returns incomplete status","Unsupported country or region — may return error or low-confidence result","Malformed request body — returns 400-level error","Payment failure or insufficient USDC balance — returns 402 Payment Required"],"whenToPreferThis":"Choose this endpoint when you need to validate a postal address before sending physical mail via the MailPulse /api/letters or /api/quote endpoints, or whenever you want to avoid wasting money printing and posting letters to bad addresses. Backed by Lob's address verification engine, it handles both US and international addresses and provides standardized output suitable for downstream mail workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:30:05.444Z","isFirstParty":false}