Property discovery
Every event-property and person-property key observed for the location, with an inferred value type, a masked sample value, occurrence and distinct-entity counts, and first/last-seen timestamps. Built for destination field mapping (property_mapping, custom_data_mapping, webhook profile. tokens, Google Ads value_property) so those fields can be chosen from real data instead of typed blind.
When to use it. Call this before creating a destination: mappings match on exact key names, and a key that does not exist fails quietly — the delivery succeeds with the field absent rather than raising a validation error. Filter value_type=number when picking a conversion value, since a value that is really the string "$19.99" instead of 19.99 is the common cause of a conversion recorded as zero. Use entities to tell a broken mapping from a field few visitors fill in, and order_by=first_seen / seen_since to spot keys that recently started or stopped arriving after a site or form change. It is also the discovery surface to build a field picker on.
Backed by a pre-aggregated catalog — one row per key rather than per event — so cost does not scale with event volume. For scope=event, nested objects are exploded one level deep and returned as dot-paths (form_data.email); scope=person returns top-level keys only.
Sample values are masked at ingestion: emails, phone-shaped values and known identity keys are stored as [email], [phone] or [redacted], and objects/arrays are not sampled at all (sample_value: null). Non-identifying values are returned verbatim.
curl -X GET "https://mythic-analytics.gulp.workers.dev/client/v1/data/properties?location_id=example_string&scope=event&event=example_string&search=example_string&value_type=string&min_occurrences=42&seen_since=2024-12-25T10%3A00%3A00Z&order_by=occurrences&limit=500&offset=0" \
-H "Content-Type: application/json" \
-H "X-Location-Id: example_string" \
-H "Authorization: Bearer YOUR_API_TOKEN"
import requests
import json
url = "https://mythic-analytics.gulp.workers.dev/client/v1/data/properties?location_id=example_string&scope=event&event=example_string&search=example_string&value_type=string&min_occurrences=42&seen_since=2024-12-25T10%3A00%3A00Z&order_by=occurrences&limit=500&offset=0"
headers = {
"Content-Type": "application/json",
"X-Location-Id": "example_string",
"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/data/properties?location_id=example_string&scope=event&event=example_string&search=example_string&value_type=string&min_occurrences=42&seen_since=2024-12-25T10%3A00%3A00Z&order_by=occurrences&limit=500&offset=0", {
method: "GET",
headers: {
"Content-Type": "application/json",
"X-Location-Id": "example_string",
"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/data/properties?location_id=example_string&scope=event&event=example_string&search=example_string&value_type=string&min_occurrences=42&seen_since=2024-12-25T10%3A00%3A00Z&order_by=occurrences&limit=500&offset=0", nil)
if err != nil {
panic(err)
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("X-Location-Id", "example_string")
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/data/properties?location_id=example_string&scope=event&event=example_string&search=example_string&value_type=string&min_occurrences=42&seen_since=2024-12-25T10%3A00%3A00Z&order_by=occurrences&limit=500&offset=0')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
request = Net::HTTP::Get.new(uri)
request['Content-Type'] = 'application/json'
request['X-Location-Id'] = 'example_string'
request['Authorization'] = 'Bearer YOUR_API_TOKEN'
response = http.request(request)
puts response.body
{
"success": true,
"rows": 42,
"data": [
{
"scope": "event",
"event": "example_string",
"key": "example_string",
"value_type": "example_string",
"sample_value": "example_string",
"occurrences": 42,
"entities": 42,
"first_seen": "2024-12-25T10:00:00Z",
"last_seen": "2024-12-25T10:00:00Z"
}
]
}
{
"error": "Bad Request",
"message": "The request contains invalid parameters or malformed data",
"code": 400,
"details": [
{
"field": "email",
"message": "Invalid email format"
}
]
}
{
"error": "Unauthorized",
"message": "Authentication required. Please provide a valid API token",
"code": 401
}
{
"error": "Forbidden",
"message": "You don't have permission to access this resource",
"code": 403
}
{
"error": "Too Many Requests",
"message": "Rate limit exceeded. Please try again later",
"code": 429,
"retryAfter": 3600
}
{
"error": "Error",
"message": "An upstream data service failed",
"code": 502
}
{
"error": "Service Unavailable",
"message": "The service is temporarily unavailable. Please try again later",
"code": 503
}
/properties
Target server for requests. Edit to use your own host.
Agency key (ak_) or location secret key (sk_) as a bearer token. Format: Bearer ak_... or Bearer sk_.... Scoped keys (mcp_) are accepted too and need the read scope of the family the route belongs to (people, events, sessions, replays, exceptions, heatmaps or bigquery_export). See Using an mcp_ key over HTTP.
ak_) or location secret key (sk_) as a bearer token. Format: Bearer ak_... or Bearer sk_.... Scoped keys (mcp_) are accepted too and need the read scope of the family the route belongs to (people, events, sessions, replays, exceptions, heatmaps or bigquery_export). See Using an mcp_ key over HTTP.
Alternative to the X-Location-Id header for agency (ak_) keys. Ignored for secret (sk_) keys.
Restrict to event properties or person properties. Omit for both.
Restrict scope=event rows to a single event name.
Case-insensitive substring match on the property key.
Filter by inferred value type. Use number to find value fields.
Drop keys seen fewer than N times.
Only keys seen at or after this datetime — hides fields that no longer arrive.
Result ordering.
Location to scope the request to. Required for agency (ak_) keys on the event routes. Ignored for secret (sk_) keys, which resolve their own location, and not used by /export.
Request Preview
Response
Response will appear here after sending the request
Authentication
Bearer token. Agency key (ak_) or location secret key (sk_) as a bearer token. Format: Bearer ak_... or Bearer sk_.... Scoped keys (mcp_) are accepted too and need the read scope of the family the route belongs to (people, events, sessions, replays, exceptions, heatmaps or bigquery_export). See Using an mcp_ key over HTTP.
Query Parameters
Alternative to the X-Location-Id header for agency (ak_) keys. Ignored for secret (sk_) keys.
Restrict to event properties or person properties. Omit for both.
eventpersonRestrict scope=event rows to a single event name.
Case-insensitive substring match on the property key.
Filter by inferred value type. Use number to find value fields.
stringnumberbooleanobjectarraynullDrop keys seen fewer than N times.
Only keys seen at or after this datetime — hides fields that no longer arrive.
Headers
Location to scope the request to. Required for agency (ak_) keys on the event routes. Ignored for secret (sk_) keys, which resolve their own location, and not used by /export.