Cancel a run

POST

projects

{projectId}

eval-runs

{runId}

cancel

Cancel a run

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))

}

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

{
  "id": "<string>",
  "suiteId": "<string>",
  "status": "pending",
  "source": "ui",
  "createdAt": 123,
  "runNumber": 123,
  "result": "passed",
  "summary": {
    "total": 123,
    "passed": 123,
    "failed": 123,
    "passRate": 123
  },
  "notes": "<string>",
  "completedAt": 123,
  "scoreIntegrity": "valid",
  "environment": {
    "id": "<string>",
    "name": "<string>",
    "revision": 123
  },
  "runGroupId": "<string>",
  "effectiveModelId": "<string>",
  "modelSource": "client_default",
  "executionEngine": "<string>",
  "insights": {
    "schemaVersion": 1,
    "scope": {
      "kind": "eval_run",
      "id": "<string>",
      "runId": "<string>",
      "scenarioId": "<string>",
      "windowStartAt": 123,
      "windowEndAt": 123
    },
    "status": "not_available",
    "reasonCode": "<string>",
    "retryable": true,
    "error": {
      "code": "<string>",
      "message": "<string>"
    },
    "generatedAt": 123,
    "updatedAt": 123,
    "summary": "<string>",
    "coverage": {
      "unit": "iterations",
      "analyzed": 123,
      "total": 123,
      "truncated": true,
      "lowConfidence": true,
      "gradedCount": 123,
      "feedbackCount": 123
    },
    "findings": [
      {
        "id": "<string>",
        "signalFingerprint": "<string>",
        "title": "<string>",
        "category": "unknown",
        "attribution": "unknown",
        "actionTarget": "investigate",
        "actionability": "informational",
        "severity": "info",
        "confidence": "low",
        "observed": "<string>",
        "recommendation": "<string>",
        "acceptanceCriteria": [
          "<string>"
        ],
        "affected": {
          "count": 123,
          "total": 123,
          "unit": "iterations"
        },
        "evidence": [
          {
            "kind": "tool_error",
            "excerpt": "<string>",
            "sessionId": "<string>",
            "iterationId": "<string>",
            "toolName": "<string>",
            "errorCode": "<string>"
          }
        ],
        "rootCause": "<string>",
        "patternSlug": "<string>",
        "target": {
          "serverId": "<string>",
          "surface": "description",
          "snapshotHash": "<string>",
          "toolName": "<string>",
          "fieldPath": "<string>",
          "currentDefinition": {
            "truncated": true,
            "description": "<string>",
            "inputSchemaJson": "<string>",
            "outputSchemaJson": "<string>"
          }
        }
      }
    ],
    "truncation": {
      "truncated": true,
      "omittedFindings": 123,
      "omittedEvidence": 123,
      "contractTruncated": true
    },
    "runHealth": {
      "targets": [
        {
          "subjectKind": "environment",
          "subjectId": "<string>",
          "subjectLabel": "<string>",
          "attempted": 123,
          "succeeded": 123,
          "failed": 123,
          "rateLimited": 123
        }
      ]
    }
  },
  "judges": {
    "goalCompletion": {
      "status": "pending",
      "errorCode": "<string>",
      "summary": "<string>",
      "generatedAt": 123,
      "modelUsed": "<string>",
      "threshold": 123,
      "cases": [
        {
          "caseKey": "<string>",
          "score": 123,
          "passed": true,
          "reason": "<string>",
          "rubricHits": [
            "<string>"
          ]
        }
      ]
    },
    "groundedness": {
      "status": "pending",
      "errorCode": "<string>",
      "summary": "<string>",
      "generatedAt": 123,
      "modelUsed": "<string>",
      "threshold": 123,
      "cases": [
        {
          "caseKey": "<string>",
          "score": 123,
          "passed": true,
          "reason": "<string>",
          "unsupportedClaims": [
            "<string>"
          ]
        }
      ]
    }
  }
}

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

The cancelled run.

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.

scoreIntegrity

enum<string> | null

Whether the run's score evidence verified at ingest. TRI-STATE, and the third state matters: valid means the backend checked and definitions and results agree; invalid means they do not; null (or absent) means NO VERDICT was produced, on a deployment that predates integrity checking. A score gate must treat null exactly like invalid — absent evidence is not valid evidence.

Available options:

valid,

invalid,

null

environment

object · null · null

The environment revision this run is pinned to. null on a legacy run that recorded none — always present, so a caller never has to distinguish absent from unpinned.

Show child attributes

runGroupId

string

Shared by every per-target run from the same fan-out launch. Absent on a single-target launch and on rows created before run groups.

effectiveModelId

string

Model the run actually executed with. Absent on pre-attribution rows.

modelSource

enum<string>

client_default inherited the host model; override used the environment's modelId.

Available options:

client_default,

override

executionEngine

string

Which engine executed the run: emulated (the platform's own turn loop) or harness:<id> (a real agent runtime such as Claude Code). ABSENT means the run recorded no engine — a run created before the platform attributed one. Treat that as UNKNOWN, never as emulated: those are different claims, and the runs whose engine was never recorded are exactly the ones a reader must not vouch for.

insights

object

The common actionable-insights envelope. Present on the DETAIL response only — lists stay compact — and absent when the caller may not have it or the deployment cannot produce one. Treat absence exactly like status: "not_available".

Show child attributes

judges

object

Advisory LLM graders on this run. Present on the DETAIL response only — lists stay compact — and absent on deployments that predate the envelope.

Show child attributes

⌘I

Cancel a run

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))

}

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

{
  "id": "<string>",
  "suiteId": "<string>",
  "status": "pending",
  "source": "ui",
  "createdAt": 123,
  "runNumber": 123,
  "result": "passed",
  "summary": {
    "total": 123,
    "passed": 123,
    "failed": 123,
    "passRate": 123
  },
  "notes": "<string>",
  "completedAt": 123,
  "scoreIntegrity": "valid",
  "environment": {
    "id": "<string>",
    "name": "<string>",
    "revision": 123
  },
  "runGroupId": "<string>",
  "effectiveModelId": "<string>",
  "modelSource": "client_default",
  "executionEngine": "<string>",
  "insights": {
    "schemaVersion": 1,
    "scope": {
      "kind": "eval_run",
      "id": "<string>",
      "runId": "<string>",
      "scenarioId": "<string>",
      "windowStartAt": 123,
      "windowEndAt": 123
    },
    "status": "not_available",
    "reasonCode": "<string>",
    "retryable": true,
    "error": {
      "code": "<string>",
      "message": "<string>"
    },
    "generatedAt": 123,
    "updatedAt": 123,
    "summary": "<string>",
    "coverage": {
      "unit": "iterations",
      "analyzed": 123,
      "total": 123,
      "truncated": true,
      "lowConfidence": true,
      "gradedCount": 123,
      "feedbackCount": 123
    },
    "findings": [
      {
        "id": "<string>",
        "signalFingerprint": "<string>",
        "title": "<string>",
        "category": "unknown",
        "attribution": "unknown",
        "actionTarget": "investigate",
        "actionability": "informational",
        "severity": "info",
        "confidence": "low",
        "observed": "<string>",
        "recommendation": "<string>",
        "acceptanceCriteria": [
          "<string>"
        ],
        "affected": {
          "count": 123,
          "total": 123,
          "unit": "iterations"
        },
        "evidence": [
          {
            "kind": "tool_error",
            "excerpt": "<string>",
            "sessionId": "<string>",
            "iterationId": "<string>",
            "toolName": "<string>",
            "errorCode": "<string>"
          }
        ],
        "rootCause": "<string>",
        "patternSlug": "<string>",
        "target": {
          "serverId": "<string>",
          "surface": "description",
          "snapshotHash": "<string>",
          "toolName": "<string>",
          "fieldPath": "<string>",
          "currentDefinition": {
            "truncated": true,
            "description": "<string>",
            "inputSchemaJson": "<string>",
            "outputSchemaJson": "<string>"
          }
        }
      }
    ],
    "truncation": {
      "truncated": true,
      "omittedFindings": 123,
      "omittedEvidence": 123,
      "contractTruncated": true
    },
    "runHealth": {
      "targets": [
        {
          "subjectKind": "environment",
          "subjectId": "<string>",
          "subjectLabel": "<string>",
          "attempted": 123,
          "succeeded": 123,
          "failed": 123,
          "rateLimited": 123
        }
      ]
    }
  },
  "judges": {
    "goalCompletion": {
      "status": "pending",
      "errorCode": "<string>",
      "summary": "<string>",
      "generatedAt": 123,
      "modelUsed": "<string>",
      "threshold": 123,
      "cases": [
        {
          "caseKey": "<string>",
          "score": 123,
          "passed": true,
          "reason": "<string>",
          "rubricHits": [
            "<string>"
          ]
        }
      ]
    },
    "groundedness": {
      "status": "pending",
      "errorCode": "<string>",
      "summary": "<string>",
      "generatedAt": 123,
      "modelUsed": "<string>",
      "threshold": 123,
      "cases": [
        {
          "caseKey": "<string>",
          "score": 123,
          "passed": true,
          "reason": "<string>",
          "unsupportedClaims": [
            "<string>"
          ]
        }
      ]
    }
  }
}

API Guides

Endpoints

Authorizations

Path Parameters

Response