curl --request GET \
--url https://api.reasonmachines.com/v3/organizations/{orgId}/sessions/{sessionId}/conversation \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.reasonmachines.com/v3/organizations/{orgId}/sessions/{sessionId}/conversation"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.reasonmachines.com/v3/organizations/{orgId}/sessions/{sessionId}/conversation', 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.reasonmachines.com/v3/organizations/{orgId}/sessions/{sessionId}/conversation",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
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://api.reasonmachines.com/v3/organizations/{orgId}/sessions/{sessionId}/conversation"
req, _ := http.NewRequest("GET", 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.get("https://api.reasonmachines.com/v3/organizations/{orgId}/sessions/{sessionId}/conversation")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.reasonmachines.com/v3/organizations/{orgId}/sessions/{sessionId}/conversation")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"items": [
{
"id": "<string>",
"cursor": 123,
"kind": "prompt",
"role": "<string>",
"content": "<string>",
"status": "<string>",
"outcome": "success",
"metadata": {
"source": "subagent"
},
"attachments": [
{}
],
"created_at": "2023-11-07T05:31:56Z"
}
],
"has_next_page": true,
"end_cursor": "<string>"
}{
"error": "missing_bearer",
"message": "Authorization required"
}{
"error": "missing_scope",
"required_scope": "sessions:read"
}{
"error": "session_not_found"
}{
"error": {
"type": "rate_limited",
"message": "This API key exceeded its request-rate limit"
}
}List the conversation
Returns the Session’s conversation in order: the opening prompt, each message in it afterwards, and one reply for every finished turn. kind tells them apart. A reply’s content is the turn’s result_summary (empty when the turn left none), with the turn’s status and outcome beside it, so a failed or cancelled turn is listed and marked as such; a structured result the agent declared is result on getSession, and a turn’s intermediate text and tool activity are events (listSessionEvents). A reply is listed once every turn before it has finished. Delivery notes are not included. Cursor-paginated: pass end_cursor as after, and keep polling with it to receive what is said next. An item’s cursor belongs to this list only and is not a message seq.
sessions:readcurl --request GET \
--url https://api.reasonmachines.com/v3/organizations/{orgId}/sessions/{sessionId}/conversation \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.reasonmachines.com/v3/organizations/{orgId}/sessions/{sessionId}/conversation"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.reasonmachines.com/v3/organizations/{orgId}/sessions/{sessionId}/conversation', 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.reasonmachines.com/v3/organizations/{orgId}/sessions/{sessionId}/conversation",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
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://api.reasonmachines.com/v3/organizations/{orgId}/sessions/{sessionId}/conversation"
req, _ := http.NewRequest("GET", 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.get("https://api.reasonmachines.com/v3/organizations/{orgId}/sessions/{sessionId}/conversation")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.reasonmachines.com/v3/organizations/{orgId}/sessions/{sessionId}/conversation")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"items": [
{
"id": "<string>",
"cursor": 123,
"kind": "prompt",
"role": "<string>",
"content": "<string>",
"status": "<string>",
"outcome": "success",
"metadata": {
"source": "subagent"
},
"attachments": [
{}
],
"created_at": "2023-11-07T05:31:56Z"
}
],
"has_next_page": true,
"end_cursor": "<string>"
}{
"error": "missing_bearer",
"message": "Authorization required"
}{
"error": "missing_scope",
"required_scope": "sessions:read"
}{
"error": "session_not_found"
}{
"error": {
"type": "rate_limited",
"message": "This API key exceeded its request-rate limit"
}
}Authorizations
Your Reason API key from Settings > API. New keys use reason_; legacy ara_ keys remain accepted. Keys are capability-scoped: run, mcp:read, mcp:write, secrets:read, secrets:write, sessions:read, sessions:debug, knowledge:read, memory:read, memory:write, skills:read, skills:write, repos:read, repos:write, reviews:read, reviews:write, deployment:read, analytics:read, org:read, org:write, attachments:read, attachments:write, guardrails:read, guardrails:write, automations:read, automations:write, agent_auth:read. mcp:write manages MCP server configuration only; it does not authorize remote MCP-tool execution. sessions:read reads sessions, including the assistant, reasoning and tool activity in their events. sessions:debug is privileged: only for organization owners/admins, it expands session events to the full diagnostic projection (diagnostic event kinds, status text and raw event metadata).
Path Parameters
Organization id or slug. Resolve it with GET /v3/self.
The session id, returned as session_id by createSession and listSessions.
Query Parameters
Page size (default 50, max 200).
Cursor from a previous page's end_cursor (or an item's cursor): return only what follows it.
Response
A page of the conversation.
Show child attributes
Show child attributes
The cursor of the last item, or the after that was sent when the page is empty; null only when nothing has been read. Keep polling with it after has_next_page is false to receive what is said next.

