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Best UPU POST*CODE API Alternatives in 2026

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

  1. 1
    Addrex Address Validation API Free plan apiWeb $39/mo7.3
    UPU POST*CODE API vs Addrex Address Validation API
  2. 2
    Melissa Global Address Verification Free plan apiLinuxself-hostedWebWin $40/mo7.3
    UPU POST*CODE API vs Melissa Global Address Verification
  3. 3
    Lob Address Verification Free plan apiWeb $260/mo7.2
    UPU POST*CODE API vs Lob Address Verification
  4. 4
    Byteplant Address Validator Free trial apiWebWin 6.9
    UPU POST*CODE API vs Byteplant Address Validator
  5. 5
    PostGrid Address Verification Free trial apiself-hostedWeb $18/mo6.9
    UPU POST*CODE API vs PostGrid Address Verification
  6. 6
    Hopewiser Address Validation Free trial apiLinuxself-hostedWebWin 6.8
    UPU POST*CODE API vs Hopewiser Address Validation
  7. 7
    Informatica Product 360 apiself-hostedWebWin 6.8
    UPU POST*CODE API vs Informatica Product 360
  8. 8
    Precisely EnterWorks apiWebWin 6.8
    UPU POST*CODE API vs Precisely EnterWorks
  9. 9
    Smarty Address Verification Free trial AndroidapiiOSLinuxMac $46/mo6.7
    UPU POST*CODE API vs Smarty Address Verification
  10. 10
    Addressfinder Free trial apiWeb A$19/mo6.6
    UPU POST*CODE API vs Addressfinder
  11. 11
    AFD Postcode WebWin 5.1
    UPU POST*CODE API vs AFD Postcode
  12. 12
    Experian Address Validation Web 5.1
    UPU POST*CODE API vs Experian Address Validation
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