PASAR API

🇳🇱 PostcodeAPI.nu ~ Dutch postcode address lookup

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X-Api-Key header; free tier for low volume, paid plans above it.

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# PostcodeAPI.nu ~ Dutch postcode address lookup needs an API key ~ get yours at:
# https://www.postcodeapi.nu/docs/v2/
curl 'https://api.postcodeapi.nu/v2' \
  -H 'Authorization: Bearer YOUR_TOKEN'

AI prompt

I'm integrating a Netherlands API into my app.

API: PostcodeAPI.nu ~ Dutch postcode address lookup
Provider: PostcodeAPI.nu
Auth: requires an API key (sign up: https://www.postcodeapi.nu/docs/v2/)
Pricing: freemium
Base URL: https://api.postcodeapi.nu/v2
Important note: X-Api-Key header; free tier for low volume, paid plans above it.

Source: PostcodeAPI.nu (https://www.postcodeapi.nu/docs/v2/)
Source type: Provider API or developer docs
Endpoint type: Provider API base URL
Integration difficulty: Needs API key
Last checked: 2026-07-05
Production caveat: Keep credentials server-side and confirm current limits, pricing, and webhook/error behaviour in the provider docs.

Help me set up the correct onboarding/authentication path and make the first valid request ~ explain exactly where credentials go and what must happen before production.

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