Evals

Grade an eval run with LLM as Judge

Spends. Runs the goal-completion judge over the finished run, scoring each case’s final answer against its expected output.

202: scheduled, not done. Read the grades from the run detail’s judges.goalCompletion rather than re-requesting — a second POST only spends again.

A run’s grading config is pinned when the run is created, so turning the judge on for the suite does not reach an already-recorded run: enable: true is what grades one, and it changes nothing beyond that run. Omitting model and threshold clears any override a previous request left on the run.

POST

projects

{projectId}

eval-runs

{runId}

judge

Grade an eval run with LLM as Judge

curl --request POST \
  --url https://app.mcpjam.com/api/v1/projects/{projectId}/eval-runs/{runId}/judge \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "force": true,
  "enable": true,
  "model": "<string>",
  "threshold": 0.5
}
'

import requests

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

payload = {
    "force": True,
    "enable": True,
    "model": "<string>",
    "threshold": 0.5
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({force: true, enable: true, model: '<string>', threshold: 0.5})
};

fetch('https://app.mcpjam.com/api/v1/projects/{projectId}/eval-runs/{runId}/judge', 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}/judge",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'force' => true,
    'enable' => true,
    'model' => '<string>',
    'threshold' => 0.5
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

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

	payload := strings.NewReader("{\n  \"force\": true,\n  \"enable\": true,\n  \"model\": \"<string>\",\n  \"threshold\": 0.5\n}")

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

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

	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}/judge")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"force\": true,\n  \"enable\": true,\n  \"model\": \"<string>\",\n  \"threshold\": 0.5\n}")
  .asString();

require 'uri'
require 'net/http'

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

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"force\": true,\n  \"enable\": true,\n  \"model\": \"<string>\",\n  \"threshold\": 0.5\n}"

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

{
  "runId": "<string>",
  "projectId": "<string>",
  "status": "pending"
}

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.

Headers

x-mcpjam-eval-vocabulary

enum<string>

Which vocabulary this request and its response speak. Absent means 1, which is byte-for-byte today's contract: the same request fields, the same refusals, the same response projection. 2 is the canonical vocabulary. Any other value is a 400 with code: "VALIDATION_ERROR".

Today it decides one thing: the spelling of an evaluator's policy role. Vocabulary 1 accepts and returns gating; vocabulary 2 accepts both spellings and returns the canonical required. Sending required without the header is a 400, deliberately — vocabulary 1 is not widened to meet vocabulary 2 half way, because a boundary that accepts a spelling it does not announce is one two implementations can disagree about.

A response that varies by vocabulary sends Vary: x-mcpjam-eval-vocabulary.

Available options:

1,

2

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.

Body

application/json

Optional. A bodyless POST grades with the suite's own config.

force

boolean

Re-grade a run that already has a result. SPENDS AGAIN. Must be a real boolean — "false" is rejected rather than read as consent.

enable

boolean

Grade this run even though the judge was off when it ran. A per-RUN answer, not a suite edit: grading reads the config pinned when the run was created, so enabling the judge on the suite does not reach an already-recorded run.

model

string

Judge model for this run only.

threshold

number

Pass threshold for this run only.

Required range: 0 <= x <= 1

Response

Scheduled.

runId

string

required

projectId

string

required

status

enum<string>

required

Available options:

pending

⌘I

Grade an eval run with LLM as Judge

curl --request POST \
  --url https://app.mcpjam.com/api/v1/projects/{projectId}/eval-runs/{runId}/judge \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "force": true,
  "enable": true,
  "model": "<string>",
  "threshold": 0.5
}
'

import requests

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

payload = {
    "force": True,
    "enable": True,
    "model": "<string>",
    "threshold": 0.5
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({force: true, enable: true, model: '<string>', threshold: 0.5})
};

fetch('https://app.mcpjam.com/api/v1/projects/{projectId}/eval-runs/{runId}/judge', 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}/judge",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'force' => true,
    'enable' => true,
    'model' => '<string>',
    'threshold' => 0.5
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

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

	payload := strings.NewReader("{\n  \"force\": true,\n  \"enable\": true,\n  \"model\": \"<string>\",\n  \"threshold\": 0.5\n}")

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

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

	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}/judge")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"force\": true,\n  \"enable\": true,\n  \"model\": \"<string>\",\n  \"threshold\": 0.5\n}")
  .asString();

require 'uri'
require 'net/http'

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

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"force\": true,\n  \"enable\": true,\n  \"model\": \"<string>\",\n  \"threshold\": 0.5\n}"

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

{
  "runId": "<string>",
  "projectId": "<string>",
  "status": "pending"
}

API Guides

Endpoints

Grade an eval run with LLM as Judge

Authorizations

Headers

Path Parameters

Body

Response