How to hit the Zippopotam.us API

Zippopotam.us at https://api.zippopotam.us turns a postal code into places with coordinates, and back.

Authentication

None — no key, no signup. Every example runs as-is.

Full reference: https://www.zippopotam.us/

Look up a postal code

curl https://api.zippopotam.us/us/90210
Run in PostTaco
Example response (trimmed) 
{
  "country": "United States",
  "country abbreviation": "US",
  "post code": "90210",
  "places": [
    {
      "place name": "Beverly Hills",
      "longitude": "-118.4065",
      "latitude": "34.0901",
      "state": "California",
      "state abbreviation": "CA"
    }
  ]
}

Postal codes for a city

Country, state abbreviation, city.

curl https://api.zippopotam.us/us/co/boulder
Run in PostTaco
Example response (trimmed) 
{
  "country": "United States",
  "country abbreviation": "US",
  "state": "Colorado",
  "state abbreviation": "CO",
  "place name": "Boulder",
  "places": [
    {
      "place name": "Boulder",
      "longitude": "-105.2143",
      "latitude": "40.0497",
      "post code": "80301"
    },
    {
      "place name": "Boulder",
      "longitude": "-105.2851",
      "latitude": "40.0172",
      "post code": "80302"
    }
  ]
}