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Best USPS Addresses API Alternatives in 2026

Updated

20 apps from address verification software ranked against USPS Addresses API on the same published basis.

  1. 1
    Addresser Free plan AndroidapiiOSWeb Free7.2
    USPS Addresses API vs Addresser
  2. 2
    Melissa Global Address Verification Free plan apiLinuxself-hostedWebWin $40/mo7.1
    USPS Addresses API vs Melissa Global Address Verification
  3. 3
    PostalUp Free plan apiWeb $1.58/mo6.9
    USPS Addresses API vs PostalUp
  4. 4
    Addrex Address Validation API Free plan apiWeb $39/mo6.8
    USPS Addresses API vs Addrex Address Validation API
  5. 5
    AddressZen Free plan apiextensionWeb Free6.7
    USPS Addresses API vs AddressZen
  6. 6
    Lob Address Verification Free plan apiWeb $260/mo6.7
    USPS Addresses API vs Lob Address Verification
  7. 7
    PostNL Address Validation API Free plan apiWeb Free6.6
    USPS Addresses API vs PostNL Address Validation API
  8. 8
    Smarty Address Verification Free trial AndroidapiiOSLinuxMac $46/mo6.6
    USPS Addresses API vs Smarty Address Verification
  9. 9
    Byteplant Address Validator Free trial apiWebWin 6.4
    USPS Addresses API vs Byteplant Address Validator
  10. 10
    Hopewiser Address Validation Free trial apiLinuxself-hostedWebWin 6.4
    USPS Addresses API vs Hopewiser Address Validation
  11. 11
    Informatica Product 360 apiself-hostedWebWin 6.3
    USPS Addresses API vs Informatica Product 360
  12. 12
    PostGrid Address Verification Free trial apiself-hostedWeb $18/mo6.2
    USPS Addresses API vs PostGrid Address Verification
  13. 13
    Precisely EnterWorks apiWebWin 6.2
    USPS Addresses API vs Precisely EnterWorks
  14. 14
    Google Maps Platform Address Validation API apiWeb $17/mo6.1
    USPS Addresses API vs Google Maps Platform Address Validation API
  15. 15
    Addressfinder Free trial apiWeb A$19/mo5.9
    USPS Addresses API vs Addressfinder
  16. 16
    Fetchify Free trial apiWeb £25/mo5.9
    USPS Addresses API vs Fetchify
  17. 17
    Loqate Address Verification Free trial apiself-hostedWeb 5.9
    USPS Addresses API vs Loqate Address Verification
  18. 18
    Oracle PeopleSoft Campus Solutions Financial Aid WebWin 5.9
    USPS Addresses API vs Oracle PeopleSoft Campus Solutions Financial Aid
  19. 19
    AFD Postcode WebWin 5.8
    USPS Addresses API vs AFD Postcode
  20. 20
    Experian Address Validation Free trial apiWeb 5.7
    USPS Addresses API vs Experian Address Validation

USPS Addresses API alternatives compared

#AppScoreFree planFromRuns on
1Addresser7.2Free planFreeAndroid, API, iOS, Web
2Melissa Global Address Verification7.1Free plan$40/moAPI, Linux, self-hosted, Web, Windows
3PostalUp6.9Free plan$1.58/moAPI, Web
4Addrex Address Validation API6.8Free plan$39/moAPI, Web
5AddressZen6.7Free planFreeAPI, Browser, Web
6Lob Address Verification6.7Free plan$260/moAPI, Web
7PostNL Address Validation API6.6Free planFreeAPI, Web
8Smarty Address Verification6.6No$46/moAndroid, API, iOS, Linux, Mac, self-hosted, Web, Windows
9Byteplant Address Validator6.4No—API, Web, Windows
10Hopewiser Address Validation6.4No—API, Linux, self-hosted, Web, Windows
11Informatica Product 3606.3No—API, self-hosted, Web, Windows
12PostGrid Address Verification6.2No$18/moAPI, self-hosted, Web
13Precisely EnterWorks6.2No—API, Web, Windows
14Google Maps Platform Address Validation API6.1No$17/moAPI, Web
15Addressfinder5.9NoA$19/moAPI, Web
16Fetchify5.9No£25/moAPI, Web
17Loqate Address Verification5.9No—API, self-hosted, Web
18Oracle PeopleSoft Campus Solutions Financial Aid5.9No—Web, Windows
19AFD Postcode5.8No—Web, Windows
20Experian Address Validation5.7No—API, Web
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Questions about USPS Addresses API alternatives

What is the best alternative to USPS Addresses API?

Addresser, number 1 in address verification software with a score of 7.2 out of 10. The others here: Melissa Global Address Verification, PostalUp, Addrex Address Validation API and 16 more.

What is the best free alternative to USPS Addresses API?

Addresser is the best-ranked alternative with a free plan. 7 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on.