The Geeks Club
Vendor dashboard
Search
For vendors
AdvertiseTop spots, featured rows, home sponsor Get listedAdd a product we don't cover yet Claim a listingFree: verify the domain, then correct your page Vendor dashboardNumbers, orders and placements

Best UPU POST*CODE API Alternatives in 2026

Updated

20 platforms from address verification software ranked against UPU POST*CODE API on the same published basis.

  1. 1
    Melissa Global Address Verification Free plan apiLinuxself-hostedWebWin $40/mo7.8
    UPU POST*CODE API vs Melissa Global Address Verification
  2. 2
    Lob Address Verification Free plan apiWeb $260/mo7.5
    UPU POST*CODE API vs Lob Address Verification
  3. 3
    Addrex Address Validation API Free plan apiWeb $39/mo7.0
    UPU POST*CODE API vs Addrex Address Validation API
  4. 4
    Byteplant Address Validator Free trial apiWebWin 7.0
    UPU POST*CODE API vs Byteplant Address Validator
  5. 5
    Hopewiser Address Validation Free trial apiLinuxself-hostedWebWin 7.0
    UPU POST*CODE API vs Hopewiser Address Validation
  6. 6
    Smarty Address Verification Free trial AndroidapiiOSLinuxMac $46/mo7.0
    UPU POST*CODE API vs Smarty Address Verification
  7. 7
    PostGrid Address Verification Free trial apiself-hostedWeb $18/mo6.9
    UPU POST*CODE API vs PostGrid Address Verification
  8. 8
    Addressfinder Free trial apiWeb A$19/mo6.5
    UPU POST*CODE API vs Addressfinder
  9. 9
    Informatica Product 360 apiself-hostedWebWin 6.3
    UPU POST*CODE API vs Informatica Product 360
  10. 10
    Precisely EnterWorks apiWebWin 6.2
    UPU POST*CODE API vs Precisely EnterWorks
  11. 11
    Oracle PeopleSoft Campus Solutions Financial Aid WebWin 5.9
    UPU POST*CODE API vs Oracle PeopleSoft Campus Solutions Financial Aid
  12. 12
    AFD Postcode WebWin 5.8
    UPU POST*CODE API vs AFD Postcode
  13. 13
    Experian Address Validation Web 5.8
    UPU POST*CODE API vs Experian Address Validation
  14. 14
    PostNL Address Validation API Web 5.8
    UPU POST*CODE API vs PostNL Address Validation API
  15. 15
    Precisely Data Enrichment Web 5.8
    UPU POST*CODE API vs Precisely Data Enrichment
  16. 16
    Addressr Web 5.7
    UPU POST*CODE API vs Addressr
  17. 17
    PostalUp Web 5.7
    UPU POST*CODE API vs PostalUp
  18. 19
    AddressZen Web 5.6
    UPU POST*CODE API vs AddressZen
  19. 20
    Fetchify Free trial apiWeb £25/mo5.6
    UPU POST*CODE API vs Fetchify
  20. 21
    Addresser Web 5.5
    UPU POST*CODE API vs Addresser

UPU POST*CODE API alternatives compared

#PlatformScoreFree planFromRuns on
1Melissa Global Address Verification7.8Free plan$40/moAPI, Linux, self-hosted, Web, Windows
2Lob Address Verification7.5Free plan$260/moAPI, Web
3Addrex Address Validation API7.0Free plan$39/moAPI, Web
4Byteplant Address Validator7.0No—API, Web, Windows
5Hopewiser Address Validation7.0No—API, Linux, self-hosted, Web, Windows
6Smarty Address Verification7.0No$46/moAndroid, API, iOS, Linux, Mac, self-hosted, Web, Windows
7PostGrid Address Verification6.9No$18/moAPI, self-hosted, Web
8Addressfinder6.5NoA$19/moAPI, Web
9Informatica Product 3606.3No—API, self-hosted, Web, Windows
10Precisely EnterWorks6.2No—API, Web, Windows
11Oracle PeopleSoft Campus Solutions Financial Aid5.9No—Web, Windows
12AFD Postcode5.8No—Web, Windows
13Experian Address Validation5.8No—Web
14PostNL Address Validation API5.8No—Web
15Precisely Data Enrichment5.8No—Web
16Addressr5.7No—Web
17PostalUp5.7No—Web
19AddressZen5.6No—Web
20Fetchify5.6No£25/moAPI, Web
21Addresser5.5No—Web
Make your platform an alternative to UPU POST*CODE API

The sponsored alternative slot on this page is labelled Sponsored.

See the price

Questions about UPU POST*CODE API alternatives

What is the best alternative to UPU POST*CODE API?

Melissa Global Address Verification, number 1 in address verification software with a score of 7.8 out of 10. The others here: Lob Address Verification, Addrex Address Validation API, Byteplant Address Validator and 16 more.

What is the best free alternative to UPU POST*CODE API?

Melissa Global Address Verification is the best-ranked alternative with a free plan. 3 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.