curl --request POST \
--url https://api.anchorbrowser.io/v1/sessions/{sessionId}/agent/files \
--header 'Content-Type: multipart/form-data' \
--header 'anchor-api-key: <api-key>' \
--form file='@example-file'import requests
url = "https://api.anchorbrowser.io/v1/sessions/{sessionId}/agent/files"
files = { "file": ("example-file", open("example-file", "rb")) }
headers = {"anchor-api-key": "<api-key>"}
response = requests.post(url, files=files, headers=headers)
print(response.text)const form = new FormData();
form.append('file', '<string>');
const options = {method: 'POST', headers: {'anchor-api-key': '<api-key>'}};
options.body = form;
fetch('https://api.anchorbrowser.io/v1/sessions/{sessionId}/agent/files', 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.anchorbrowser.io/v1/sessions/{sessionId}/agent/files",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001--",
CURLOPT_HTTPHEADER => [
"Content-Type: multipart/form-data",
"anchor-api-key: <api-key>"
],
]);
$response = curl_exec($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.anchorbrowser.io/v1/sessions/{sessionId}/agent/files"
payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001--")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("anchor-api-key", "<api-key>")
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.anchorbrowser.io/v1/sessions/{sessionId}/agent/files")
.header("anchor-api-key", "<api-key>")
.body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001--")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.anchorbrowser.io/v1/sessions/{sessionId}/agent/files")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["anchor-api-key"] = '<api-key>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001--"
response = http.request(request)
puts response.read_body{
"data": {
"status": "<string>",
"message": "<string>"
}
}{
"error": {
"code": 123,
"message": "<string>"
}
}{
"error": {
"error": {
"code": 123,
"message": "<string>"
}
}
}{
"error": {
"error": {
"code": 123,
"message": "<string>"
}
}
}Upload Agent Resources
Upload files as agent resources to a browser session using multipart/form-data. If you upload a ZIP file, it will be automatically extracted and the files will be made available as agent resources. If you upload a single file, it will be saved directly as an agent resource. Resources are then accessible to AI agents for task completion and automation.
curl --request POST \
--url https://api.anchorbrowser.io/v1/sessions/{sessionId}/agent/files \
--header 'Content-Type: multipart/form-data' \
--header 'anchor-api-key: <api-key>' \
--form file='@example-file'import requests
url = "https://api.anchorbrowser.io/v1/sessions/{sessionId}/agent/files"
files = { "file": ("example-file", open("example-file", "rb")) }
headers = {"anchor-api-key": "<api-key>"}
response = requests.post(url, files=files, headers=headers)
print(response.text)const form = new FormData();
form.append('file', '<string>');
const options = {method: 'POST', headers: {'anchor-api-key': '<api-key>'}};
options.body = form;
fetch('https://api.anchorbrowser.io/v1/sessions/{sessionId}/agent/files', 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.anchorbrowser.io/v1/sessions/{sessionId}/agent/files",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001--",
CURLOPT_HTTPHEADER => [
"Content-Type: multipart/form-data",
"anchor-api-key: <api-key>"
],
]);
$response = curl_exec($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.anchorbrowser.io/v1/sessions/{sessionId}/agent/files"
payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001--")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("anchor-api-key", "<api-key>")
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.anchorbrowser.io/v1/sessions/{sessionId}/agent/files")
.header("anchor-api-key", "<api-key>")
.body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001--")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.anchorbrowser.io/v1/sessions/{sessionId}/agent/files")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["anchor-api-key"] = '<api-key>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001--"
response = http.request(request)
puts response.read_body{
"data": {
"status": "<string>",
"message": "<string>"
}
}{
"error": {
"code": 123,
"message": "<string>"
}
}{
"error": {
"error": {
"code": 123,
"message": "<string>"
}
}
}{
"error": {
"error": {
"code": 123,
"message": "<string>"
}
}
}Authorizations
API key for your Anchor Browser account, sent as the anchor-api-key header on every
request. Create one at app.anchorbrowser.io (API Access),
or obtain one programmatically via the unauthenticated agent-access flow
(POST /v1/agent-access).
Path Parameters
The browser session ID
Body
File to upload as agent resource (ZIP files will be extracted automatically)
Response
Agent resources uploaded successfully
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