One call validates a residential address, classifies its exact property type, and returns its estimated home value. The Home Verify endpoints confirm ownership and return full owner, property, and loan data.
\nBase URL: https://api.addressverify.io
Every request requires your API key in the x-api-key header. Set the apiKey collection variable once and all requests inherit it.
Add ?expanded=true to either Address Lookup endpoint to receive detailed property data (address components, property details, tax assessment, and listing). Available on all plans at no extra cost.
homeType is one of:
The free tier includes 50 API calls per month, no credit card required.
\n","schema":"https://schema.getpostman.com/json/collection/v2.0.0/collection.json","toc":[{"content":"AddressVerify.io API","slug":"addressverifyio-api"}],"owner":"9473321","collectionId":"adce417f-6421-4105-82e1-d4e2a3dafb43","publishedId":"2sBY4Mt12d","public":true,"customColor":{"top-bar":"FFFFFF","right-sidebar":"141414","highlight":"3B82F6"},"publishDate":"2026-07-13T17:09:46.000Z"},"item":[{"name":"Address Lookup","item":[{"name":"Address Lookup (single line)","id":"e8415dc9-b408-46de-b07e-5d4e40593e71","protocolProfileBehavior":{"disableBodyPruning":true},"request":{"method":"POST","header":[{"key":"x-api-key","value":"YOUR_API_KEY","description":"Required. Your API access key.
\n","type":"text"},{"key":"Content-Type","value":"application/json","type":"text"}],"body":{"mode":"raw","raw":"{\n \"address\": \"20 Marie St, Iberia, MO 65486\"\n}","options":{"raw":{"language":"json"}}},"url":"https://api.addressverify.io/service/lookup/address","description":"Submit a complete address in a single line for quick verification.
\nBody
\naddress (string, required): the full address to verify.Query
\nexpanded (boolean, optional): set true for expanded property data.Optional. Set true to return expanded property data.
\n","type":"text/plain"},"key":"expanded","value":"true"}],"variable":[]}},"response":[{"id":"b23f8a5a-e816-44bc-be51-49b945fc7883","name":"Basic response","originalRequest":{"method":"POST","header":[{"key":"x-api-key","value":"YOUR_API_KEY","type":"text","description":"Required. Your API access key."},{"key":"Content-Type","value":"application/json","type":"text"}],"body":{"mode":"raw","raw":"{\n \"address\": \"20 Marie St, Iberia, MO 65486\"\n}","options":{"raw":{"language":"json"}}},"url":"https://api.addressverify.io/service/lookup/address"},"status":"OK","code":200,"_postman_previewlanguage":"json","header":[{"key":"Content-Type","value":"application/json"}],"cookie":[],"responseTime":null,"body":"{\n \"address\": \"20 Marie St, Iberia, MO 65486\",\n \"addressValid\": true,\n \"homeType\": \"SINGLE_FAMILY\",\n \"homeValue\": 371000\n}"},{"id":"a7da5b9f-7a49-413b-88ef-8abc69c4d72d","name":"Expanded response (expanded=true)","originalRequest":{"method":"POST","header":[{"key":"x-api-key","value":"YOUR_API_KEY","type":"text","description":"Required. Your API access key."},{"key":"Content-Type","value":"application/json","type":"text"}],"body":{"mode":"raw","raw":"{\n \"address\": \"20 Marie St, Iberia, MO 65486\"\n}","options":{"raw":{"language":"json"}}},"url":{"raw":"https://api.addressverify.io/service/lookup/address?expanded=true","host":["https://api.addressverify.io"],"path":["service","lookup","address"],"query":[{"key":"expanded","value":"true"}]}},"status":"OK","code":200,"_postman_previewlanguage":"json","header":[{"key":"Content-Type","value":"application/json"}],"cookie":[],"responseTime":null,"body":"{\n \"address\": \"20 Marie St, Iberia, MO 65486\",\n \"homeType\": \"SINGLE_FAMILY\",\n \"addressValid\": true,\n \"homeValue\": 371000,\n \"addressInfo\": {\n \"streetAddress\": \"20 Marie St\",\n \"zipcode\": \"65486\",\n \"city\": \"Iberia\",\n \"state\": \"MO\"\n },\n \"propertyInfo\": {\n \"bathrooms\": 2,\n \"bedrooms\": 4,\n \"livingArea\": 2072,\n \"yearBuilt\": 2001,\n \"lotSize\": \"1.84 acres\"\n },\n \"taxAssessment\": {\n \"taxAssessedValue\": 150210,\n \"taxAssessmentYear\": \"2024\"\n },\n \"listing\": {\n \"lastSoldDate\": \"2025-05-22\",\n \"isPreforeclosureAuction\": false,\n \"listingStatus\": \"recentlySold\"\n }\n}"}],"_postman_id":"e8415dc9-b408-46de-b07e-5d4e40593e71"},{"name":"Field Lookup (multi line)","id":"58a8c296-e015-4197-bcee-71ec00cd3680","protocolProfileBehavior":{"disableBodyPruning":true},"request":{"method":"POST","header":[{"key":"x-api-key","value":"YOUR_API_KEY","description":"Required. Your API access key.
\n","type":"text"},{"key":"Content-Type","value":"application/json","type":"text"}],"body":{"mode":"raw","raw":"{\n \"street\": \"20 Marie St\",\n \"city\": \"Iberia\",\n \"state\": \"MO\",\n \"zip\": \"65486\"\n}","options":{"raw":{"language":"json"}}},"url":"https://api.addressverify.io/service/lookup/address/fields","description":"Submit address components separately for more precise validation.
\nBody (all required)
\nstreet: street number and namecity: city namestate: state abbreviationzip: ZIP codeQuery
\nexpanded (boolean, optional): set true for expanded property data.Optional. Set true to return expanded property data.
\n","type":"text/plain"},"key":"expanded","value":"true"}],"variable":[]}},"response":[{"id":"3205f94b-5e22-4267-a25c-3c4199ae33fe","name":"Basic response","originalRequest":{"method":"POST","header":[{"key":"x-api-key","value":"YOUR_API_KEY","type":"text","description":"Required. Your API access key."},{"key":"Content-Type","value":"application/json","type":"text"}],"body":{"mode":"raw","raw":"{\n \"street\": \"20 Marie St\",\n \"city\": \"Iberia\",\n \"state\": \"MO\",\n \"zip\": \"65486\"\n}","options":{"raw":{"language":"json"}}},"url":"https://api.addressverify.io/service/lookup/address/fields"},"status":"OK","code":200,"_postman_previewlanguage":"json","header":[{"key":"Content-Type","value":"application/json"}],"cookie":[],"responseTime":null,"body":"{\n \"address\": \"20 Marie St, Iberia, MO 65486\",\n \"addressValid\": true,\n \"homeType\": \"SINGLE_FAMILY\",\n \"homeValue\": 371000\n}"},{"id":"7b141da0-672b-4796-b5f7-e4a5be68de0f","name":"Expanded response (expanded=true)","originalRequest":{"method":"POST","header":[{"key":"x-api-key","value":"YOUR_API_KEY","type":"text","description":"Required. Your API access key."},{"key":"Content-Type","value":"application/json","type":"text"}],"body":{"mode":"raw","raw":"{\n \"street\": \"20 Marie St\",\n \"city\": \"Iberia\",\n \"state\": \"MO\",\n \"zip\": \"65486\"\n}","options":{"raw":{"language":"json"}}},"url":{"raw":"https://api.addressverify.io/service/lookup/address/fields?expanded=true","host":["https://api.addressverify.io"],"path":["service","lookup","address","fields"],"query":[{"key":"expanded","value":"true"}]}},"status":"OK","code":200,"_postman_previewlanguage":"json","header":[{"key":"Content-Type","value":"application/json"}],"cookie":[],"responseTime":null,"body":"{\n \"address\": \"20 Marie St, Iberia, MO 65486\",\n \"homeType\": \"SINGLE_FAMILY\",\n \"addressValid\": true,\n \"homeValue\": 371000,\n \"addressInfo\": {\n \"streetAddress\": \"20 Marie St\",\n \"zipcode\": \"65486\",\n \"city\": \"Iberia\",\n \"state\": \"MO\"\n },\n \"propertyInfo\": {\n \"bathrooms\": 2,\n \"bedrooms\": 4,\n \"livingArea\": 2072,\n \"yearBuilt\": 2001,\n \"lotSize\": \"1.84 acres\"\n },\n \"taxAssessment\": {\n \"taxAssessedValue\": 150210,\n \"taxAssessmentYear\": \"2024\"\n },\n \"listing\": {\n \"lastSoldDate\": \"2025-05-22\",\n \"isPreforeclosureAuction\": false,\n \"listingStatus\": \"recentlySold\"\n }\n}"}],"_postman_id":"58a8c296-e015-4197-bcee-71ec00cd3680"}],"id":"6cb75a5b-d583-4bb6-ab0f-e2dabb62782a","description":"Validate a residential address and return its property type and estimated home value. Add ?expanded=true for full property detail.
Error codes
\n","_postman_id":"6cb75a5b-d583-4bb6-ab0f-e2dabb62782a"},{"name":"Home Verify","item":[{"name":"Homeowner Verification","id":"89469aad-f0ef-45eb-9ae8-f01c2405b562","protocolProfileBehavior":{"disableBodyPruning":true},"request":{"method":"POST","header":[{"key":"x-api-key","value":"YOUR_API_KEY","description":"Required. Your API access key.
\n","type":"text"},{"key":"Content-Type","value":"application/json","type":"text"}],"body":{"mode":"raw","raw":"{\n \"street\": \"20 Marie St\",\n \"city\": \"Iberia\",\n \"state\": \"MO\",\n \"zip\": \"65486\",\n \"last_name\": \"Doe\"\n}","options":{"raw":{"language":"json"}}},"url":"https://api.addressverify.io/service/lookup/address/isHomeOwner","description":"Verify whether a person (identified by last name, email, or phone) is the registered owner of the property at a given address. Returns a simple is_homeowner boolean.
Body
\nstreet, city, state, zip (all required)last_name, email, or phonephone: 10-digit U.S. number; an invalid phone is ignored if other PII is supplied.Provider failures are returned as is_homeowner: false.
Required. Your API access key.
\n","type":"text"},{"key":"Content-Type","value":"application/json","type":"text"}],"body":{"mode":"raw","raw":"{\n \"street\": \"20 Marie St\",\n \"city\": \"Iberia\",\n \"state\": \"MO\",\n \"zip\": \"65486\"\n}","options":{"raw":{"language":"json"}}},"url":"https://api.addressverify.io/service/lookup/address/isHomeOwner/homeOwner","description":"Retrieve detailed owner and property information for a given address. Use this when you need full owner data rather than a simple homeowner-match boolean.
\nBody (all required)
\nstreet, city, state, zipConfirm whether a person is the registered owner of an address, or retrieve full owner, property, and loan data for an address.
\nError codes
\n","_postman_id":"9ec77804-808e-4cbe-8ab8-de1379a22f00"}],"variable":[{"key":"baseUrl","value":"https://api.addressverify.io"},{"key":"apiKey","value":"YOUR_API_KEY"}]}