Execute workflow
curl --request POST \
--url https://api.app.layer.ai/api/v1/workspaces/{workspace_id}/workflows/{workflow_id}/runs \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"inputs": {},
"session_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"session_name": "<string>"
}
'import requests
url = "https://api.app.layer.ai/api/v1/workspaces/{workspace_id}/workflows/{workflow_id}/runs"
payload = {
"inputs": {},
"session_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"session_name": "<string>"
}
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({
inputs: {},
session_id: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
session_name: '<string>'
})
};
fetch('https://api.app.layer.ai/api/v1/workspaces/{workspace_id}/workflows/{workflow_id}/runs', 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.app.layer.ai/api/v1/workspaces/{workspace_id}/workflows/{workflow_id}/runs",
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([
'inputs' => [
],
'session_id' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
'session_name' => '<string>'
]),
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.app.layer.ai/api/v1/workspaces/{workspace_id}/workflows/{workflow_id}/runs"
payload := strings.NewReader("{\n \"inputs\": {},\n \"session_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"session_name\": \"<string>\"\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.app.layer.ai/api/v1/workspaces/{workspace_id}/workflows/{workflow_id}/runs")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"inputs\": {},\n \"session_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"session_name\": \"<string>\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.app.layer.ai/api/v1/workspaces/{workspace_id}/workflows/{workflow_id}/runs")
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 \"inputs\": {},\n \"session_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"session_name\": \"<string>\"\n}"
response = http.request(request)
puts response.read_body{
"run_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"estimated_price_creative_units": 123,
"poll_interval_seconds": 123,
"created_at": "2023-11-07T05:31:56Z",
"session_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}{
"type": "https://api.layer.ai/errors/ERROR_CODE",
"title": "Error Title",
"status": 400,
"detail": "Human-readable description."
}{
"type": "https://api.layer.ai/errors/ERROR_CODE",
"title": "Error Title",
"status": 400,
"detail": "Human-readable description."
}{
"type": "https://api.layer.ai/errors/ERROR_CODE",
"title": "Error Title",
"status": 400,
"detail": "Human-readable description."
}{
"type": "https://api.layer.ai/errors/ERROR_CODE",
"title": "Error Title",
"status": 400,
"detail": "Human-readable description."
}{
"type": "https://api.layer.ai/errors/ERROR_CODE",
"title": "Error Title",
"status": 400,
"detail": "Human-readable description."
}{
"type": "https://api.layer.ai/errors/ERROR_CODE",
"title": "Error Title",
"status": 400,
"detail": "Human-readable description."
}{
"type": "https://api.layer.ai/errors/ERROR_CODE",
"title": "Error Title",
"status": 400,
"detail": "Human-readable description."
}Workflows
Execute workflow
Start a workflow execution. Returns immediately with a run ID. Poll with GET /workspaces//workflows//runs/ for results.
POST
/
v1
/
workspaces
/
{workspace_id}
/
workflows
/
{workflow_id}
/
runs
Execute workflow
curl --request POST \
--url https://api.app.layer.ai/api/v1/workspaces/{workspace_id}/workflows/{workflow_id}/runs \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"inputs": {},
"session_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"session_name": "<string>"
}
'import requests
url = "https://api.app.layer.ai/api/v1/workspaces/{workspace_id}/workflows/{workflow_id}/runs"
payload = {
"inputs": {},
"session_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"session_name": "<string>"
}
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({
inputs: {},
session_id: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
session_name: '<string>'
})
};
fetch('https://api.app.layer.ai/api/v1/workspaces/{workspace_id}/workflows/{workflow_id}/runs', 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.app.layer.ai/api/v1/workspaces/{workspace_id}/workflows/{workflow_id}/runs",
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([
'inputs' => [
],
'session_id' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
'session_name' => '<string>'
]),
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.app.layer.ai/api/v1/workspaces/{workspace_id}/workflows/{workflow_id}/runs"
payload := strings.NewReader("{\n \"inputs\": {},\n \"session_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"session_name\": \"<string>\"\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.app.layer.ai/api/v1/workspaces/{workspace_id}/workflows/{workflow_id}/runs")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"inputs\": {},\n \"session_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"session_name\": \"<string>\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.app.layer.ai/api/v1/workspaces/{workspace_id}/workflows/{workflow_id}/runs")
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 \"inputs\": {},\n \"session_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"session_name\": \"<string>\"\n}"
response = http.request(request)
puts response.read_body{
"run_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"estimated_price_creative_units": 123,
"poll_interval_seconds": 123,
"created_at": "2023-11-07T05:31:56Z",
"session_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}{
"type": "https://api.layer.ai/errors/ERROR_CODE",
"title": "Error Title",
"status": 400,
"detail": "Human-readable description."
}{
"type": "https://api.layer.ai/errors/ERROR_CODE",
"title": "Error Title",
"status": 400,
"detail": "Human-readable description."
}{
"type": "https://api.layer.ai/errors/ERROR_CODE",
"title": "Error Title",
"status": 400,
"detail": "Human-readable description."
}{
"type": "https://api.layer.ai/errors/ERROR_CODE",
"title": "Error Title",
"status": 400,
"detail": "Human-readable description."
}{
"type": "https://api.layer.ai/errors/ERROR_CODE",
"title": "Error Title",
"status": 400,
"detail": "Human-readable description."
}{
"type": "https://api.layer.ai/errors/ERROR_CODE",
"title": "Error Title",
"status": 400,
"detail": "Human-readable description."
}{
"type": "https://api.layer.ai/errors/ERROR_CODE",
"title": "Error Title",
"status": 400,
"detail": "Human-readable description."
}Authorizations
Personal Access Token or OAuth2 JWT. Create a PAT at app.layer.ai → Settings → Personal Access Tokens.
Body
application/json
Input values matching the workflow's input schema.
Existing session ID. Takes precedence over session_name if both are provided.
Session name. Creates a new session if not found in the workspace. Ignored if session_id is set.
Response
Successful Response
Unique identifier for this workflow run.
Current run status: PENDING or RUNNING.
Available options:
pending, running, success, failure, cancelled Estimated price in Creative Units.
Suggested polling interval in seconds.
Timestamp of when the run was created.
Session ID the run was added to, if a session was specified.
⌘I