Evaluate a conversation for an agent loop

curl --request POST \
  --url https://api.orbit.devotel.io/api/v1/agents/conversations/{conversationId}/loop-check \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "window_turns": 11,
  "jaccard_threshold": 0.5,
  "sentiment_negative_threshold": 0,
  "min_customer_turns": 10
}
'

import requests

url = "https://api.orbit.devotel.io/api/v1/agents/conversations/{conversationId}/loop-check"

payload = {
    "window_turns": 11,
    "jaccard_threshold": 0.5,
    "sentiment_negative_threshold": 0,
    "min_customer_turns": 10
}
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({
    window_turns: 11,
    jaccard_threshold: 0.5,
    sentiment_negative_threshold: 0,
    min_customer_turns: 10
  })
};

fetch('https://api.orbit.devotel.io/api/v1/agents/conversations/{conversationId}/loop-check', 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://api.orbit.devotel.io/api/v1/agents/conversations/{conversationId}/loop-check",
  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([
    'window_turns' => 11,
    'jaccard_threshold' => 0.5,
    'sentiment_negative_threshold' => 0,
    'min_customer_turns' => 10
  ]),
  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://api.orbit.devotel.io/api/v1/agents/conversations/{conversationId}/loop-check"

	payload := strings.NewReader("{\n  \"window_turns\": 11,\n  \"jaccard_threshold\": 0.5,\n  \"sentiment_negative_threshold\": 0,\n  \"min_customer_turns\": 10\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://api.orbit.devotel.io/api/v1/agents/conversations/{conversationId}/loop-check")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"window_turns\": 11,\n  \"jaccard_threshold\": 0.5,\n  \"sentiment_negative_threshold\": 0,\n  \"min_customer_turns\": 10\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.orbit.devotel.io/api/v1/agents/conversations/{conversationId}/loop-check")

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  \"window_turns\": 11,\n  \"jaccard_threshold\": 0.5,\n  \"sentiment_negative_threshold\": 0,\n  \"min_customer_turns\": 10\n}"

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

{
  "data": {
    "conversation_id": "conv_01J9Z8ABCDEF",
    "evaluation": {
      "isLoop": true,
      "reasonCodes": [
        "repeated_customer_ask",
        "sentiment_deteriorating"
      ],
      "customerTurnCount": 6
    },
    "window_turns": 5,
    "evaluated_at": "2026-08-29T14:33:00.000Z"
  },
  "meta": {
    "request_id": "req_01J9Z8ABCDEF",
    "timestamp": "2026-08-29T14:33:00.000Z"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "status": 123,
    "details": {}
  },
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "docs_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "status": 123,
    "details": {}
  },
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "docs_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "status": 123,
    "details": {}
  },
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "docs_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "status": 123,
    "details": {}
  },
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "docs_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "status": 123,
    "details": {}
  },
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "docs_url": "<string>"
  }
}

{
  "error": {
    "code": "RATE_LIMITED",
    "message": "<string>",
    "status": 429,
    "retry_after": 2
  },
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "docs_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "status": 123,
    "details": {}
  },
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "docs_url": "<string>"
  }
}

Agents

Evaluate a conversation for an agent loop

Run the deterministic loop detector over the conversation’s recent message window and return its evaluation — whether the conversation is stuck in a loop, the reason codes, and the customer-turn count behind the verdict. Every body field is optional and tunes the detector per request (window size, similarity threshold, sentiment threshold, minimum customer turns); omitting the body uses the calibrated defaults. Read-only — it evaluates without mutating the conversation or triggering a handoff.

POST

api

agents

conversations

{conversationId}

loop-check

Evaluate a conversation for an agent loop

curl --request POST \
  --url https://api.orbit.devotel.io/api/v1/agents/conversations/{conversationId}/loop-check \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "window_turns": 11,
  "jaccard_threshold": 0.5,
  "sentiment_negative_threshold": 0,
  "min_customer_turns": 10
}
'

import requests

url = "https://api.orbit.devotel.io/api/v1/agents/conversations/{conversationId}/loop-check"

payload = {
    "window_turns": 11,
    "jaccard_threshold": 0.5,
    "sentiment_negative_threshold": 0,
    "min_customer_turns": 10
}
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({
    window_turns: 11,
    jaccard_threshold: 0.5,
    sentiment_negative_threshold: 0,
    min_customer_turns: 10
  })
};

fetch('https://api.orbit.devotel.io/api/v1/agents/conversations/{conversationId}/loop-check', 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://api.orbit.devotel.io/api/v1/agents/conversations/{conversationId}/loop-check",
  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([
    'window_turns' => 11,
    'jaccard_threshold' => 0.5,
    'sentiment_negative_threshold' => 0,
    'min_customer_turns' => 10
  ]),
  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://api.orbit.devotel.io/api/v1/agents/conversations/{conversationId}/loop-check"

	payload := strings.NewReader("{\n  \"window_turns\": 11,\n  \"jaccard_threshold\": 0.5,\n  \"sentiment_negative_threshold\": 0,\n  \"min_customer_turns\": 10\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://api.orbit.devotel.io/api/v1/agents/conversations/{conversationId}/loop-check")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"window_turns\": 11,\n  \"jaccard_threshold\": 0.5,\n  \"sentiment_negative_threshold\": 0,\n  \"min_customer_turns\": 10\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.orbit.devotel.io/api/v1/agents/conversations/{conversationId}/loop-check")

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  \"window_turns\": 11,\n  \"jaccard_threshold\": 0.5,\n  \"sentiment_negative_threshold\": 0,\n  \"min_customer_turns\": 10\n}"

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

{
  "data": {
    "conversation_id": "conv_01J9Z8ABCDEF",
    "evaluation": {
      "isLoop": true,
      "reasonCodes": [
        "repeated_customer_ask",
        "sentiment_deteriorating"
      ],
      "customerTurnCount": 6
    },
    "window_turns": 5,
    "evaluated_at": "2026-08-29T14:33:00.000Z"
  },
  "meta": {
    "request_id": "req_01J9Z8ABCDEF",
    "timestamp": "2026-08-29T14:33:00.000Z"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "status": 123,
    "details": {}
  },
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "docs_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "status": 123,
    "details": {}
  },
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "docs_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "status": 123,
    "details": {}
  },
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "docs_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "status": 123,
    "details": {}
  },
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "docs_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "status": 123,
    "details": {}
  },
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "docs_url": "<string>"
  }
}

{
  "error": {
    "code": "RATE_LIMITED",
    "message": "<string>",
    "status": 429,
    "retry_after": 2
  },
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "docs_url": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "status": 123,
    "details": {}
  },
  "meta": {
    "request_id": "<string>",
    "timestamp": "2023-11-07T05:31:56Z",
    "docs_url": "<string>"
  }
}

Authorizations

Authorization

string

header

required

Dashboard JWT token from Clerk

Headers

Idempotency-Key

string

Stripe-style idempotency token. Pass a stable, client-generated value (1-255 chars) to dedupe retries on transient timeouts. The same key+credential+path replays the original response for 24h on 2xx (5min on 4xx, 30s on 5xx). Returns 409 if a concurrent request with the same key is already in flight; replayed responses include the Idempotency-Replay: true response header.

Required string length: 1 - 255

X-Test-Mode

enum<string>

Sandbox opt-in for Clerk-session-authenticated requests. Set to true to route the call through the test-mode pipeline: no real provider delivery, no credits deducted, response meta.test_mode: true. Ignored for live API keys (dv_live_sk_*) — server-to-server clients must use a test-prefixed key (dv_test_sk_*) to exercise sandbox. Test-prefixed keys unconditionally enable sandbox regardless of this header.

Available options:

true,

false

Path Parameters

conversationId

string

required

The agent conversation id.

Required string length: 1 - 200

Body

application/json

Optional detector tuning — omit for the calibrated defaults.

window_turns

integer

How many recent turns to inspect (default 5).

Required range: 2 <= x <= 20

jaccard_threshold

number

Minimum re-ask similarity that counts as a repeated demand.

Required range: 0 <= x <= 1

sentiment_negative_threshold

number

Customer-turn sentiment below this counts toward a frustration loop.

Required range: -1 <= x <= 1

min_customer_turns

integer

Minimum inbound turns before a loop verdict can fire.

Required range: 1 <= x <= 20

Response

The loop evaluation for the conversation.

data

object

Show child attributes

API Reference

All Endpoints

Evaluate a conversation for an agent loop

Authorizations

Headers

Path Parameters

Body

Response