curl --request POST \
--url https://api.croma.run/co/siata-geoportal/citizen-sensors/v1 \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"latitude": 6.2442,
"longitude": -75.5812,
"radius_km": 3
}
'import requests
url = "https://api.croma.run/co/siata-geoportal/citizen-sensors/v1"
payload = {
"latitude": 6.2442,
"longitude": -75.5812,
"radius_km": 3
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({latitude: 6.2442, longitude: -75.5812, radius_km: 3})
};
fetch('https://api.croma.run/co/siata-geoportal/citizen-sensors/v1', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.croma.run/co/siata-geoportal/citizen-sensors/v1",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'latitude' => 6.2442,
'longitude' => -75.5812,
'radius_km' => 3
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.croma.run/co/siata-geoportal/citizen-sensors/v1"
payload := strings.NewReader("{\n \"latitude\": 6.2442,\n \"longitude\": -75.5812,\n \"radius_km\": 3\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.croma.run/co/siata-geoportal/citizen-sensors/v1")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"latitude\": 6.2442,\n \"longitude\": -75.5812,\n \"radius_km\": 3\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.croma.run/co/siata-geoportal/citizen-sensors/v1")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"latitude\": 6.2442,\n \"longitude\": -75.5812,\n \"radius_km\": 3\n}"
response = http.request(request)
puts response.read_body{
"data": {
"sensors": [
{
"station_code": "<string>",
"station": "<string>",
"municipality": "<string>",
"latitude": 123,
"longitude": 123,
"updated_at": "<string>",
"available": true,
"pm25_1h": 123,
"index_daily": 123,
"category": "<string>",
"data_recovery_24h_pct": 123,
"data_recovery_15d_pct": 123,
"distance_km": 123
}
]
}
}{
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"details": {}
}
}{
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"details": {}
}
}{
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"details": {}
}
}{
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"details": {}
}
}{
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"details": {}
}
}The citizen-science PM2.5 sensor network of the Aburrá Valley (Medellín metropolitan area), about 230 low-cost sensors: PM2.5 over the last hour, the daily air-quality index (ICA) with its category, whether each sensor is reporting, and its data recovery over 24 hours and 15 days. All inputs optional: an empty body returns every sensor; pass latitude + longitude (with optional radius_km, default 10) for nearby sensors nearest first, or municipality / station_code to narrow. Indicative data; use the air-quality endpoint for the reference network.
curl --request POST \
--url https://api.croma.run/co/siata-geoportal/citizen-sensors/v1 \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"latitude": 6.2442,
"longitude": -75.5812,
"radius_km": 3
}
'import requests
url = "https://api.croma.run/co/siata-geoportal/citizen-sensors/v1"
payload = {
"latitude": 6.2442,
"longitude": -75.5812,
"radius_km": 3
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({latitude: 6.2442, longitude: -75.5812, radius_km: 3})
};
fetch('https://api.croma.run/co/siata-geoportal/citizen-sensors/v1', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.croma.run/co/siata-geoportal/citizen-sensors/v1",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'latitude' => 6.2442,
'longitude' => -75.5812,
'radius_km' => 3
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.croma.run/co/siata-geoportal/citizen-sensors/v1"
payload := strings.NewReader("{\n \"latitude\": 6.2442,\n \"longitude\": -75.5812,\n \"radius_km\": 3\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.croma.run/co/siata-geoportal/citizen-sensors/v1")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"latitude\": 6.2442,\n \"longitude\": -75.5812,\n \"radius_km\": 3\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.croma.run/co/siata-geoportal/citizen-sensors/v1")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"latitude\": 6.2442,\n \"longitude\": -75.5812,\n \"radius_km\": 3\n}"
response = http.request(request)
puts response.read_body{
"data": {
"sensors": [
{
"station_code": "<string>",
"station": "<string>",
"municipality": "<string>",
"latitude": 123,
"longitude": 123,
"updated_at": "<string>",
"available": true,
"pm25_1h": 123,
"index_daily": 123,
"category": "<string>",
"data_recovery_24h_pct": 123,
"data_recovery_15d_pct": 123,
"distance_km": 123
}
]
}
}{
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"details": {}
}
}{
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"details": {}
}
}{
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"details": {}
}
}{
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"details": {}
}
}{
"error": {
"type": "<string>",
"code": "<string>",
"message": "<string>",
"param": "<string>",
"details": {}
}
}Authorizations
Use Authorization: Bearer YOUR_API_KEY
Headers
Optional client-chosen key for this request (any string up to 255 characters, e.g. a UUID). Every Croma operation is an idempotent lookup: repeating a request with the same body returns the same result and creates nothing, so retrying after a timeout or network failure is always safe. The key is echoed back in the Idempotency-Key response header so you can correlate a retry with its first attempt. Each attempt that reaches the API counts against the rate limit.
255"0f8e9a42-6b7c-4d1e-9a3f-2c5d7e8f9a0b"
Body
Optional latitude. With longitude, returns only stations near that point.
-90 <= x <= 90Optional longitude. With latitude, returns only stations near that point.
-180 <= x <= 180Radius in km around latitude/longitude to include stations. Defaults to 10.
1 <= x <= 100Optional municipality filter, e.g. Medellín or Itagüí. Accents and case are ignored.
80Optional station code, e.g. 520. Returns only that station.
20Response
Successful response
Show child attributes
Show child attributes