Cancel a run

Request cancellation of an in-flight run; marks the run and its pending/running iterations cancelled. A no-op success when the run is already cancelled; returns 409 when the run already reached a terminal status (completed/failed/timed_out).

POST /projects/{projectId}/eval-runs/{runId}/cancel

Cancel a run

cURL

curl --request POST \
  --url https://app.mcpjam.com/api/v1/projects/{projectId}/eval-runs/{runId}/cancel \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://app.mcpjam.com/api/v1/projects/{projectId}/eval-runs/{runId}/cancel"

headers = {"Authorization": "Bearer <token>"}

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

print(response.text)

const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

fetch('https://app.mcpjam.com/api/v1/projects/{projectId}/eval-runs/{runId}/cancel', 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://app.mcpjam.com/api/v1/projects/{projectId}/eval-runs/{runId}/cancel",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  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://app.mcpjam.com/api/v1/projects/{projectId}/eval-runs/{runId}/cancel"

	req, _ := http.NewRequest("POST", 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.post("https://app.mcpjam.com/api/v1/projects/{projectId}/eval-runs/{runId}/cancel")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.mcpjam.com/api/v1/projects/{projectId}/eval-runs/{runId}/cancel")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'

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

200

Example

{ "id": "<string>", "suiteId": "<string>", "createdAt": 123, "runNumber": 123, "summary": { "total": 123, "passed": 123, "failed": 123, "passRate": 123 }, "notes": "<string>", "completedAt": 123 }

Authorizations

Authorization · string · header · required

MCPJam API key (sk_…). Create one at Settings → API keys. Guest sessions cannot use the API, and API keys cannot manage other API keys.

Path Parameters

projectId · string · required

ID of the hosted project that contains the server.

runId · string · required

Eval run ID, as returned by POST /eval-runs.

Response

200

application/json

The cancelled run.

id · string · required

suiteId · string · required

status · enum<string> · required

Poll until terminal: completed, failed, or cancelled.

Available options: pending, running, completed, failed, cancelled

source · enum<string> · required

Run origin. API-created runs are api.

Available options: ui, api, sdk

createdAt · number · required

Epoch milliseconds.

runNumber · integer | null

result · enum<string> | null

Pass/fail verdict once terminal.

Available options: passed, failed, null

summary · object | null

Show child attributes

notes · string | null

completedAt · number | null

Epoch milliseconds, null until terminal.