Inferse
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
List your platform
Vendor dashboard

Best PostNL Address Validation API Alternatives in 2026

Updated

20 platforms from address verification software ranked against PostNL Address Validation API on the same published basis.

  1. 1
    Addrex Address Validation API Free plan apiWeb $39/mo7.3
    PostNL Address Validation API vs Addrex Address Validation API
  2. 2
    Melissa Global Address Verification Free plan apiLinuxself-hostedWebWin $40/mo7.3
    PostNL Address Validation API vs Melissa Global Address Verification
  3. 3
    Lob Address Verification Free plan apiWeb $260/mo7.2
    PostNL Address Validation API vs Lob Address Verification
  4. 4
    Byteplant Address Validator Free trial apiWebWin 6.9
    PostNL Address Validation API vs Byteplant Address Validator
  5. 5
    PostGrid Address Verification Free trial apiself-hostedWeb $18/mo6.9
    PostNL Address Validation API vs PostGrid Address Verification
  6. 6
    Hopewiser Address Validation Free trial apiLinuxself-hostedWebWin 6.8
    PostNL Address Validation API vs Hopewiser Address Validation
  7. 7
    Informatica Product 360 apiself-hostedWebWin 6.8
    PostNL Address Validation API vs Informatica Product 360
  8. 8
    Precisely EnterWorks apiWebWin 6.8
    PostNL Address Validation API vs Precisely EnterWorks
  9. 9
    Smarty Address Verification Free trial AndroidapiiOSLinuxMac $46/mo6.7
    PostNL Address Validation API vs Smarty Address Verification
  10. 10
    Addressfinder Free trial apiWeb A$19/mo6.6
    PostNL Address Validation API vs Addressfinder
  11. 11
    Fetchify Free trial apiWeb £25/mo6.6
    PostNL Address Validation API vs Fetchify
  12. 12
    AFD Postcode WebWin 5.1
    PostNL Address Validation API vs AFD Postcode
  13. 13
    Experian Address Validation Web 5.1
    PostNL Address Validation API vs Experian Address Validation
  14. 14
    Oracle PeopleSoft Campus Solutions Financial Aid WebWin 5.1
    PostNL Address Validation API vs Oracle PeopleSoft Campus Solutions Financial Aid
  15. 15
    PostalUp Web 5.1
    PostNL Address Validation API vs PostalUp
  16. 17
    Precisely Data Enrichment Web 5.1
    PostNL Address Validation API vs Precisely Data Enrichment
  17. 18
    Addressr Web 5.0
    PostNL Address Validation API vs Addressr
  18. 19
    AddressZen Web 5.0
    PostNL Address Validation API vs AddressZen
  19. 20
    DOTS Address Validation – US 3 5.0
    PostNL Address Validation API vs DOTS Address Validation – US 3
  20. 21
    UPU POST*CODE API Web 5.0
    PostNL Address Validation API vs UPU POST*CODE API

PostNL Address Validation API alternatives compared

#PlatformScoreFree planFromRuns on
1Addrex Address Validation API7.3Free plan$39/moAPI, Web
2Melissa Global Address Verification7.3Free plan$40/moAPI, Linux, self-hosted, Web, Windows
3Lob Address Verification7.2Free plan$260/moAPI, Web
4Byteplant Address Validator6.9No—API, Web, Windows
5PostGrid Address Verification6.9No$18/moAPI, self-hosted, Web
6Hopewiser Address Validation6.8No—API, Linux, self-hosted, Web, Windows
7Informatica Product 3606.8No—API, self-hosted, Web, Windows
8Precisely EnterWorks6.8No—API, Web, Windows
9Smarty Address Verification6.7No$46/moAndroid, API, iOS, Linux, Mac, self-hosted, Web, Windows
10Addressfinder6.6NoA$19/moAPI, Web
11Fetchify6.6No£25/moAPI, Web
12AFD Postcode5.1No—Web, Windows
13Experian Address Validation5.1No—Web
14Oracle PeopleSoft Campus Solutions Financial Aid5.1No—Web, Windows
15PostalUp5.1No—Web
17Precisely Data Enrichment5.1No—Web
18Addressr5.0No—Web
19AddressZen5.0No—Web
20DOTS Address Validation – US 35.0No——
21UPU POST*CODE API5.0No—Web
Make your platform an alternative to PostNL Address Validation API

The sponsored alternative slot on this page is labelled Sponsored.

See the price

Questions about PostNL Address Validation API alternatives

What is the best alternative to PostNL Address Validation API?

Addrex Address Validation API, number 1 in address verification software with a score of 7.3 out of 10. The others here: Melissa Global Address Verification, Lob Address Verification, Byteplant Address Validator and 16 more.

What is the best free alternative to PostNL Address Validation API?

Addrex Address Validation API 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 what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.