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# Get performance quantiles over time

POST https://api.respan.ai/api/dashboard/quantiles/
Content-Type: application/json

Returns p50, p90, p95, and p99 distributions for latency, time-to-first-token, and tokens-per-second, bucketed by `time_tick`.

Reference: https://respan.ai/docs/apis/metrics/get-performance-quantiles-over-time

## Authentication

- `Authorization` header (bearer token, required) — Use your Respan API key for Respan API authentication. Enter only the Respan API key value; clients send Authorization: Bearer \<RESPAN\_API\_KEY>. For /api/responses, provider credentials such as Perplexity, OpenAI, or Azure OpenAI go in Settings -> Providers or respan\_params.credential\_override in the request body, not in this authentication field.
- `Authorization` header (bearer token, required) — Use a dashboard JWT only for dashboard-authenticated endpoints. Respan API-key endpoints use the respanApiKey auth field instead.

## Request

### Query parameters

- `summary_type` (enum, optional, default: all) — Preset time range. Use this or explicit `start_time` / `end_time`.
  - Allowed values: `daily`, `weekly`, `monthly`, `quarterly`, `yearly`, `last_24h`, `all`
- `date` (date, optional) — Base date used with `summary_type` presets.
- `start_time` (datetime, optional) — Optional explicit ISO start time.
- `end_time` (datetime, optional) — Optional explicit ISO end time.
- `time_tick` (enum, optional, default: hour) — Bucket granularity for time-series responses.
  - Allowed values: `minute`, `hour`, `day`
- `timezone_offset` (double, optional, default: 0) — Timezone offset, in hours, used when resolving preset ranges.

### Body (application/json)

This endpoint expects a DashboardQuantilesRequest.

- `filters` (Filters, optional) — Narrows the spans the metrics are computed from. Each key is a field to filter on, and each value is a condition: `{"<field>": {"operator": "<operator>", "value": [...]}}`. A span must match every condition. To set two conditions on one field, such as a range, pass a list of conditions. **Operators:** `""` (equals, the default), `not`, `in`, `not_in`, `lt`, `lte`, `gt`, `gte`, `contains`, `not_contains`, `icontains` (ignores case), `startswith`, `not_startswith`, `endswith`, `not_endswith`, `empty`, `not_empty`. Put values in a list: `""` and `in` match any of the listed values, and `not` and `not_in` match none of them. Other operators take one value; for `empty` and `not_empty`, send `[""]`. **Fields:** span columns, such as `model`, `provider_id`, `deployment_name`, `customer_identifier`, `custom_identifier`, `organization_key_id`, `prompt_id`, `log_type`, `status_code`, `environment`, `cost`, `latency`, `prompt_tokens`, `completion_tokens` and `total_request_tokens`, plus `metadata__<key>` (values are strings). Aliases such as `total_tokens` and `total_cost`, and `scores__<evaluator_id>`, don't work here. **Example:** ```json { "model": {"operator": "", "value": ["gpt-5.5"]}, "customer_identifier": {"operator": "", "value": ["alex@acme.dev"]} } ```
- `metrics_to_aggregate` (list of enum, optional) — Quantile metric families to calculate.
  - Allowed values: `latency_quantiles`, `ttft_quantiles`, `tps_quantiles`, `prompt_tokens_quantiles`, `completion_tokens_quantiles`

## Response

### 200

Successful response.

- `data` (list of DashboardQuantilesRow, required)

## Errors

### 403 Forbidden Error

The API key is missing, invalid or expired.

- `detail` (string, required)

## Types

### Filters

Each key is a field to filter on, and each value is a condition: `{"<field>": {"operator": "<operator>", "value": [...]}}`. A result must match every condition. To set two conditions on one field, such as a range, pass a list of conditions. **Operators:** `""` (equals, the default), `not`, `in`, `not_in`, `lt`, `lte`, `gt`, `gte`, `contains`, `not_contains`, `icontains` (ignores case), `startswith`, `not_startswith`, `endswith`, `not_endswith`, `empty`, `not_empty`. Put values in a list: `""` and `in` match any of the listed values, and `not` and `not_in` match none of them. Other operators take one value; for `empty` and `not_empty`, send `[""]`. The fields you can filter on depend on the endpoint; `metadata__<key>` filters custom metadata where the endpoint supports it.

- `status` (FilterValue, optional) — A filter condition with an operator and value.
- `status_code` (FilterValue, optional) — A filter condition with an operator and value.
- `unique_id` (FilterValue, optional) — A filter condition with an operator and value.
- `customer_identifier` (FilterValue, optional) — A filter condition with an operator and value.
- `thread_identifier` (FilterValue, optional) — A filter condition with an operator and value.
- `custom_identifier` (FilterValue, optional) — A filter condition with an operator and value.
- `group_identifier` (FilterValue, optional) — A filter condition with an operator and value.
- `prompt_id` (FilterValue, optional) — A filter condition with an operator and value.
- `trace_unique_id` (FilterValue, optional) — A filter condition with an operator and value.
- `span_parent_id` (FilterValue, optional) — A filter condition with an operator and value.
- `is_root_span` (FilterValue, optional) — A filter condition with an operator and value.
- `span_workflow_name` (FilterValue, optional) — A filter condition with an operator and value.
- `span_name` (FilterValue, optional) — A filter condition with an operator and value.
- `model` (FilterValue, optional) — A filter condition with an operator and value.
- `log_type` (FilterValue, optional) — A filter condition with an operator and value.
- `stream` (FilterValue, optional) — A filter condition with an operator and value.
- `has_tool_calls` (FilterValue, optional) — Whether the span made tool calls.
- `cache_bit` (FilterValue, optional) — Whether the response was served from the Respan cache.
- `cache_key` (FilterValue, optional) — A filter condition with an operator and value.
- `prompt_tokens` (FilterValue, optional) — A filter condition with an operator and value.
- `completion_tokens` (FilterValue, optional) — A filter condition with an operator and value.
- `total_tokens` (FilterValue, optional) — A filter condition with an operator and value.
- `cost` (FilterValue, optional) — A filter condition with an operator and value.
- `latency` (FilterValue, optional) — A filter condition with an operator and value.
- `positive_feedback` (FilterValue, optional) — A filter condition with an operator and value.

### DashboardQuantilesRow

Populated rows use *_quantiles_p_* keys. Empty buckets may also contain legacy percentile keys.

- `date_group` (datetime, optional)
- `latency_quantiles_p_50` (double, optional, nullable)
- `latency_quantiles_p_90` (double, optional, nullable)
- `latency_quantiles_p_95` (double, optional, nullable)
- `latency_quantiles_p_99` (double, optional, nullable)
- `ttft_quantiles_p_50` (double, optional, nullable)
- `ttft_quantiles_p_90` (double, optional, nullable)
- `ttft_quantiles_p_95` (double, optional, nullable)
- `ttft_quantiles_p_99` (double, optional, nullable)
- `tps_quantiles_p_50` (double, optional, nullable)
- `tps_quantiles_p_90` (double, optional, nullable)
- `tps_quantiles_p_95` (double, optional, nullable)
- `tps_quantiles_p_99` (double, optional, nullable)
- `prompt_tokens_quantiles_p_50` (double, optional, nullable)
- `prompt_tokens_quantiles_p_90` (double, optional, nullable)
- `prompt_tokens_quantiles_p_95` (double, optional, nullable)
- `prompt_tokens_quantiles_p_99` (double, optional, nullable)
- `completion_tokens_quantiles_p_50` (double, optional, nullable)
- `completion_tokens_quantiles_p_90` (double, optional, nullable)
- `completion_tokens_quantiles_p_95` (double, optional, nullable)
- `completion_tokens_quantiles_p_99` (double, optional, nullable)

### FilterValue

A filter condition with an operator and value.

- `value` (list of any, required) — Value(s) to filter by.
- `operator` (enum, optional, default: ) — Comparison operator. An empty string means equals.
  - Allowed values: ``, `not`, `in`, `not_in`, `lt`, `lte`, `gt`, `gte`, `contains`, `not_contains`, `icontains`, `startswith`, `not_startswith`, `endswith`, `not_endswith`, `empty`, `not_empty`

## Examples

**Request**

```json
{}
```

**Response**

```json
{
  "data": [
    {
      "date_group": "2024-01-15T09:30:00Z",
      "latency_quantiles_p_50": 1.1,
      "latency_quantiles_p_90": 1.1,
      "latency_quantiles_p_95": 1.1,
      "latency_quantiles_p_99": 1.1,
      "ttft_quantiles_p_50": 1.1,
      "ttft_quantiles_p_90": 1.1,
      "ttft_quantiles_p_95": 1.1,
      "ttft_quantiles_p_99": 1.1,
      "tps_quantiles_p_50": 1.1,
      "tps_quantiles_p_90": 1.1,
      "tps_quantiles_p_95": 1.1,
      "tps_quantiles_p_99": 1.1,
      "prompt_tokens_quantiles_p_50": 1.1,
      "prompt_tokens_quantiles_p_90": 1.1,
      "prompt_tokens_quantiles_p_95": 1.1,
      "prompt_tokens_quantiles_p_99": 1.1,
      "completion_tokens_quantiles_p_50": 1.1,
      "completion_tokens_quantiles_p_90": 1.1,
      "completion_tokens_quantiles_p_95": 1.1,
      "completion_tokens_quantiles_p_99": 1.1
    }
  ]
}
```

**SDK Code**

```python
import requests

url = "https://api.respan.ai/api/dashboard/quantiles/"

payload = {}
headers = {
    "Authorization": "Bearer <respanApiKey>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.respan.ai/api/dashboard/quantiles/';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <respanApiKey>', 'Content-Type': 'application/json'},
  body: '{}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.respan.ai/api/dashboard/quantiles/"

	payload := strings.NewReader("{}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <respanApiKey>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.respan.ai/api/dashboard/quantiles/")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <respanApiKey>'
request["Content-Type"] = 'application/json'
request.body = "{}"

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.respan.ai/api/dashboard/quantiles/")
  .header("Authorization", "Bearer <respanApiKey>")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.respan.ai/api/dashboard/quantiles/', [
  'body' => '{}',
  'headers' => [
    'Authorization' => 'Bearer <respanApiKey>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.respan.ai/api/dashboard/quantiles/");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <respanApiKey>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <respanApiKey>",
  "Content-Type": "application/json"
]
let parameters = [] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.respan.ai/api/dashboard/quantiles/")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```