Coefficient history (progressive truth over time)
Every computed experiment's coefficient in computed_at order, each with the running precision-weighted median at that point — watch the progressive truth converge test by test. Grouped by series_key: only experiments measuring the same estimand (channel + revenue definition + spend scope) pool together. Partial (mid-window) computes and poor-control-fit results are excluded.
curl -X GET "https://mythic-analytics.gulp.workers.dev/client/v1/incrementality/coefficients/history?channel=example_string" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_TOKEN"
import requests
import json
url = "https://mythic-analytics.gulp.workers.dev/client/v1/incrementality/coefficients/history?channel=example_string"
headers = {
"Content-Type": "application/json",
"Authorization": "Bearer YOUR_API_TOKEN"
}
response = requests.get(url, headers=headers)
print(response.json())
const response = await fetch("https://mythic-analytics.gulp.workers.dev/client/v1/incrementality/coefficients/history?channel=example_string", {
method: "GET",
headers: {
"Content-Type": "application/json",
"Authorization": "Bearer YOUR_API_TOKEN"
}
});
const data = await response.json();
console.log(data);
package main
import (
"fmt"
"net/http"
)
func main() {
req, err := http.NewRequest("GET", "https://mythic-analytics.gulp.workers.dev/client/v1/incrementality/coefficients/history?channel=example_string", nil)
if err != nil {
panic(err)
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Authorization", "Bearer YOUR_API_TOKEN")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
panic(err)
}
defer resp.Body.Close()
fmt.Println("Response Status:", resp.Status)
}
require 'net/http'
require 'json'
uri = URI('https://mythic-analytics.gulp.workers.dev/client/v1/incrementality/coefficients/history?channel=example_string')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
request = Net::HTTP::Get.new(uri)
request['Content-Type'] = 'application/json'
request['Authorization'] = 'Bearer YOUR_API_TOKEN'
response = http.request(request)
puts response.body
{
"success": true,
"data": [
{
"channel": "meta",
"series_key": "example_string",
"points": [
{
"experiment_id": "123e4567-e89b-12d3-a456-426614174000",
"name": "John Doe",
"computed_at": "2024-12-25T10:00:00Z",
"test_window": {
"from": "2026-05-01",
"to": "2026-05-31"
},
"coefficient": 3.14,
"ci_width": 3.14,
"confidence": 3.14,
"running_coefficient": 3.14,
"test_count": 10
}
]
}
]
}
{
"error": "Too Many Requests",
"message": "Rate limit exceeded. Please try again later",
"code": 429,
"retryAfter": 3600
}
{
"error": "Error",
"message": "Upstream data store returned an error.",
"code": 502
}
/client/v1/incrementality/coefficients/history
Target server for requests. Edit to use your own host.
Client key as bearer token. Use an agency key (Bearer ak_...) for read-write access or a location secret key (Bearer sk_...) for read-only access. Scoped keys (mcp_) are accepted too and need incrementality:read or incrementality:write. See Using an mcp_ key over HTTP.
Bearer ak_...) for read-write access or a location secret key (Bearer sk_...) for read-only access. Scoped keys (mcp_) are accepted too and need incrementality:read or incrementality:write. See Using an mcp_ key over HTTP.
Restrict to one channel (e.g. meta).
Request Preview
Response
Response will appear here after sending the request
Authentication
Bearer token. Client key as bearer token. Use an agency key (Bearer ak_...) for read-write access or a location secret key (Bearer sk_...) for read-only access. Scoped keys (mcp_) are accepted too and need incrementality:read or incrementality:write. See Using an mcp_ key over HTTP.
Query Parameters
Restrict to one channel (e.g. meta).