curl --request GET \
--url https://api.apsio.io/v1/projects/{projectId}/performance/start \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.apsio.io/v1/projects/{projectId}/performance/start"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.apsio.io/v1/projects/{projectId}/performance/start', 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.apsio.io/v1/projects/{projectId}/performance/start",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://api.apsio.io/v1/projects/{projectId}/performance/start"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", "Bearer <token>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://api.apsio.io/v1/projects/{projectId}/performance/start")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.apsio.io/v1/projects/{projectId}/performance/start")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"from": "2026-10-04T10:15:00.431000000Z",
"to": "2026-10-04T10:15:00.431000000Z",
"group_by": "release",
"groups": [
{
"app_id": "<string>",
"start_type": "cold",
"key": "<string>",
"count": 123,
"p50_ms": 123,
"p90_ms": 123,
"p95_ms": 123,
"histogram": {
"bounds_ms": [
123
],
"counts": [
123
]
}
}
]
}{
"error": {
"code": "invalid_request",
"message": "<string>"
}
}{
"error": {
"code": "invalid_request",
"message": "<string>"
}
}{
"error": {
"code": "invalid_request",
"message": "<string>"
}
}App start
App start (the app.start span, spec 8.1) by start type, broken down by release, OS version, device model or iOS prewarming: percentiles and a histogram per group, the 20 groups with the most starts per app and type. Default range: the last 7 days, at most 30.
curl --request GET \
--url https://api.apsio.io/v1/projects/{projectId}/performance/start \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.apsio.io/v1/projects/{projectId}/performance/start"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.apsio.io/v1/projects/{projectId}/performance/start', 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.apsio.io/v1/projects/{projectId}/performance/start",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://api.apsio.io/v1/projects/{projectId}/performance/start"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", "Bearer <token>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://api.apsio.io/v1/projects/{projectId}/performance/start")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.apsio.io/v1/projects/{projectId}/performance/start")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"from": "2026-10-04T10:15:00.431000000Z",
"to": "2026-10-04T10:15:00.431000000Z",
"group_by": "release",
"groups": [
{
"app_id": "<string>",
"start_type": "cold",
"key": "<string>",
"count": 123,
"p50_ms": 123,
"p90_ms": 123,
"p95_ms": 123,
"histogram": {
"bounds_ms": [
123
],
"counts": [
123
]
}
}
]
}{
"error": {
"code": "invalid_request",
"message": "<string>"
}
}{
"error": {
"code": "invalid_request",
"message": "<string>"
}
}{
"error": {
"code": "invalid_request",
"message": "<string>"
}
}Authorizations
A project token (apsio_pt_v0...), which reads exactly one project, or an OAuth access token issued for the API, which reads what its user can. Access tokens issued for Apsio's MCP server are accepted only from the MCP server itself.
Path Parameters
^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$"0192f3a4-0000-7000-8000-00000000a101"
Query Parameters
Start of the time range, inclusive (RFC 3339). Defaults to the range end minus the default length.
"2026-10-01T00:00:00Z"
End of the time range, exclusive (RFC 3339). Defaults to now.
"2026-10-08T00:00:00Z"
Only this app.
^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$Only this release.
128The breakdown; prewarmed splits iOS launches the system prewarmed (spec 8.1).
release, os_version, device_model, prewarmed, none Response
Start percentiles and histograms per app, type and group.
RFC 3339 time in UTC with up to nanosecond precision.
"2026-10-04T10:15:00.431000000Z"
RFC 3339 time in UTC with up to nanosecond precision.
"2026-10-04T10:15:00.431000000Z"
release, os_version, device_model, prewarmed, none Show child attributes
Show child attributes