Export a quality-receipted Session trajectory
curl --request POST \
--url https://api.checkfu.com/v1/sessions/{id}/trajectories/export \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--header 'checkfu-version: <checkfu-version>' \
--data '
{
"selector": {
"owner_type": "session"
}
}
'import requests
url = "https://api.checkfu.com/v1/sessions/{id}/trajectories/export"
payload = { "selector": { "owner_type": "session" } }
headers = {
"checkfu-version": "<checkfu-version>",
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {
'checkfu-version': '<checkfu-version>',
Authorization: 'Bearer <token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({selector: {owner_type: 'session'}})
};
fetch('https://api.checkfu.com/v1/sessions/{id}/trajectories/export', 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.checkfu.com/v1/sessions/{id}/trajectories/export",
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([
'selector' => [
'owner_type' => 'session'
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json",
"checkfu-version: <checkfu-version>"
],
]);
$response = curl_exec($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.checkfu.com/v1/sessions/{id}/trajectories/export"
payload := strings.NewReader("{\n \"selector\": {\n \"owner_type\": \"session\"\n }\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("checkfu-version", "<checkfu-version>")
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.checkfu.com/v1/sessions/{id}/trajectories/export")
.header("checkfu-version", "<checkfu-version>")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"selector\": {\n \"owner_type\": \"session\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.checkfu.com/v1/sessions/{id}/trajectories/export")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["checkfu-version"] = '<checkfu-version>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"selector\": {\n \"owner_type\": \"session\"\n }\n}"
response = http.request(request)
puts response.read_body{
"session_id": "<string>",
"selector": {
"owner_type": "session",
"session_id": "<string>"
},
"consumer": "memory",
"sequences": [
4503599627370495
],
"quality": {
"accepted": true,
"reasons": [
"learning_disallowed"
]
},
"receipt": {
"schema_version": 1,
"session_id": "<string>",
"selector": {
"owner_type": "session",
"session_id": "<string>"
},
"source_frontier_sequence": 4503599627370495,
"terminal_frontier_sequence": 4503599627370495,
"event_schema_version": 4503599627370495,
"graph_schema_version": 4503599627370495,
"projector_version": "<string>",
"source_bundle_digest": "<string>",
"capture_policy_digest": "<string>",
"attribution": {
"covered": 4503599627370495,
"total": 4503599627370495
},
"causal_links": {
"covered": 4503599627370495,
"total": 4503599627370495
},
"local_sequence": {
"covered": 4503599627370495,
"total": 4503599627370495
},
"content": [
{
"content_class": "human_input",
"availability": "content",
"count": 4503599627370495
}
],
"worker_recovery_boundaries": 4503599627370495,
"abandoned_attempt_event_ids": [
"<string>"
],
"duplicate_event_ids": [
"<string>"
],
"ambiguous_external_effect_event_ids": [
"<string>"
],
"feedback_source_count": 4503599627370495,
"preference_source_count": 4503599627370495,
"reward_source_count": 4503599627370495,
"independent_evaluator_count": 4503599627370495,
"learning_purposes": [
"memory_curation"
],
"learning_use": "disallowed",
"learning_authorized_until": "<string>",
"retention_mode": "standard",
"retention_deadline": "<string>",
"redaction_state": "not_required",
"source_closed": true,
"claim_citations_complete": true,
"action_content_complete": true,
"consequences_closed": true,
"preference_alternatives_complete": true,
"dataset_lineage_key": "<string>",
"collaboration": [
{
"axis": "subagents",
"capability": "unsupported",
"activity": "not_observed",
"evidence_event_ids": [
"<string>"
],
"evidence_actor_lineage_ids": [
"<string>"
],
"evidence_work_unit_ids": [
"<string>"
],
"loss_reasons": [
"no_stable_identity"
]
}
],
"exclusion_reasons": [
"learning_disallowed"
],
"exported_by": "<string>"
}
}{
"error": {
"type": "validation.malformed",
"message": "<string>",
"more": "https://docs.checkfu.com/reference/errors#validation-malformed"
}
}{
"error": {
"type": "auth.invalid_key",
"message": "<string>",
"more": "https://docs.checkfu.com/reference/errors#auth-invalid-key"
}
}{
"error": {
"type": "auth.disabled_tenancy",
"message": "<string>",
"more": "https://docs.checkfu.com/reference/errors#auth-disabled-tenancy"
}
}{
"error": {
"type": "validation.not_found",
"message": "<string>",
"more": "https://docs.checkfu.com/reference/errors#validation-not-found"
}
}{
"error": {
"type": "budget.exceeded",
"message": "<string>",
"more": "https://docs.checkfu.com/reference/errors#budget-exceeded"
}
}{
"error": {
"type": "runtime.internal",
"message": "<string>",
"more": "https://docs.checkfu.com/reference/errors#runtime-internal"
}
}Export a quality-receipted Session trajectory
Exports one actor-, thread-, Run-, work-, or interaction-selected Session trajectory with a deterministic SessionDataQualityReceipt. The body names the consumer and selector; inadequate attribution, consent, causality, content, recovery, or retention is a typed refusal, never a score of zero. Step, artifact, and reward lineage project from persisted attribution coordinates, event families, and graded-evidence events; feedback, preference, consequence, and evaluator-independence lineage stays fail-closed until typed sources exist, so purposes that require them are still refusals.
Checkfu support posture: alpha; hosted. Required evidence journey: session-turn. Deployment-specific readiness and the latest proven release are available from GET /v1/support/capabilities.
POST
/
v1
/
sessions
/
{id}
/
trajectories
/
export
Export a quality-receipted Session trajectory
curl --request POST \
--url https://api.checkfu.com/v1/sessions/{id}/trajectories/export \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--header 'checkfu-version: <checkfu-version>' \
--data '
{
"selector": {
"owner_type": "session"
}
}
'import requests
url = "https://api.checkfu.com/v1/sessions/{id}/trajectories/export"
payload = { "selector": { "owner_type": "session" } }
headers = {
"checkfu-version": "<checkfu-version>",
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {
'checkfu-version': '<checkfu-version>',
Authorization: 'Bearer <token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({selector: {owner_type: 'session'}})
};
fetch('https://api.checkfu.com/v1/sessions/{id}/trajectories/export', 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.checkfu.com/v1/sessions/{id}/trajectories/export",
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([
'selector' => [
'owner_type' => 'session'
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json",
"checkfu-version: <checkfu-version>"
],
]);
$response = curl_exec($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.checkfu.com/v1/sessions/{id}/trajectories/export"
payload := strings.NewReader("{\n \"selector\": {\n \"owner_type\": \"session\"\n }\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("checkfu-version", "<checkfu-version>")
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.checkfu.com/v1/sessions/{id}/trajectories/export")
.header("checkfu-version", "<checkfu-version>")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"selector\": {\n \"owner_type\": \"session\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.checkfu.com/v1/sessions/{id}/trajectories/export")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["checkfu-version"] = '<checkfu-version>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"selector\": {\n \"owner_type\": \"session\"\n }\n}"
response = http.request(request)
puts response.read_body{
"session_id": "<string>",
"selector": {
"owner_type": "session",
"session_id": "<string>"
},
"consumer": "memory",
"sequences": [
4503599627370495
],
"quality": {
"accepted": true,
"reasons": [
"learning_disallowed"
]
},
"receipt": {
"schema_version": 1,
"session_id": "<string>",
"selector": {
"owner_type": "session",
"session_id": "<string>"
},
"source_frontier_sequence": 4503599627370495,
"terminal_frontier_sequence": 4503599627370495,
"event_schema_version": 4503599627370495,
"graph_schema_version": 4503599627370495,
"projector_version": "<string>",
"source_bundle_digest": "<string>",
"capture_policy_digest": "<string>",
"attribution": {
"covered": 4503599627370495,
"total": 4503599627370495
},
"causal_links": {
"covered": 4503599627370495,
"total": 4503599627370495
},
"local_sequence": {
"covered": 4503599627370495,
"total": 4503599627370495
},
"content": [
{
"content_class": "human_input",
"availability": "content",
"count": 4503599627370495
}
],
"worker_recovery_boundaries": 4503599627370495,
"abandoned_attempt_event_ids": [
"<string>"
],
"duplicate_event_ids": [
"<string>"
],
"ambiguous_external_effect_event_ids": [
"<string>"
],
"feedback_source_count": 4503599627370495,
"preference_source_count": 4503599627370495,
"reward_source_count": 4503599627370495,
"independent_evaluator_count": 4503599627370495,
"learning_purposes": [
"memory_curation"
],
"learning_use": "disallowed",
"learning_authorized_until": "<string>",
"retention_mode": "standard",
"retention_deadline": "<string>",
"redaction_state": "not_required",
"source_closed": true,
"claim_citations_complete": true,
"action_content_complete": true,
"consequences_closed": true,
"preference_alternatives_complete": true,
"dataset_lineage_key": "<string>",
"collaboration": [
{
"axis": "subagents",
"capability": "unsupported",
"activity": "not_observed",
"evidence_event_ids": [
"<string>"
],
"evidence_actor_lineage_ids": [
"<string>"
],
"evidence_work_unit_ids": [
"<string>"
],
"loss_reasons": [
"no_stable_identity"
]
}
],
"exclusion_reasons": [
"learning_disallowed"
],
"exported_by": "<string>"
}
}{
"error": {
"type": "validation.malformed",
"message": "<string>",
"more": "https://docs.checkfu.com/reference/errors#validation-malformed"
}
}{
"error": {
"type": "auth.invalid_key",
"message": "<string>",
"more": "https://docs.checkfu.com/reference/errors#auth-invalid-key"
}
}{
"error": {
"type": "auth.disabled_tenancy",
"message": "<string>",
"more": "https://docs.checkfu.com/reference/errors#auth-disabled-tenancy"
}
}{
"error": {
"type": "validation.not_found",
"message": "<string>",
"more": "https://docs.checkfu.com/reference/errors#validation-not-found"
}
}{
"error": {
"type": "budget.exceeded",
"message": "<string>",
"more": "https://docs.checkfu.com/reference/errors#budget-exceeded"
}
}{
"error": {
"type": "runtime.internal",
"message": "<string>",
"more": "https://docs.checkfu.com/reference/errors#runtime-internal"
}
}Authorizations
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Headers
Available options:
2026-08-29 Path Parameters
Pattern:
^sess_[0-9a-f]{32}$Body
application/json
Response
Success
Pattern:
^sess_[0-9a-f]{32}$- Option 1
- Option 2
- Option 3
- Option 4
- Option 5
- Option 6
Show child attributes
Show child attributes
Available options:
memory, sft, preference, offline_rl, evaluation, self_improvement Maximum array length:
4096Required range:
0 < x <= 9007199254740991Show child attributes
Show child attributes
Show child attributes
Show child attributes