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POST
/
v1
/
agents
/
{agent_id}
/
sandbox
/
file_write
Sandbox: File Write
curl --request POST \
  --url https://api.xpander.ai/v1/agents/{agent_id}/sandbox/file_write \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "path": "output/report.txt",
  "content": "<string>",
  "create_dirs": true
}
'
{
  "status": "ok",
  "stdout": "<string>",
  "stderr": "<string>",
  "exit_code": 123,
  "content": "<string>",
  "path": "<string>",
  "matches": [
    {}
  ],
  "url": "<string>",
  "error": "<string>"
}
Create or overwrite a file in the per-agent sandbox filesystem. When create_dirs is true, any missing parent directories are created automatically.

​
Path Parameters

​
agent_id
string
required
Agent ID (UUID)

​
Request Body

​
path
string
required
Destination file path relative to the sandbox root.
​
content
string
required
Full file content. Existing files are overwritten.
​
create_dirs
boolean
default:true
When true, missing parent directories are created automatically.

​
Response

​
status
string
Result status (e.g., ok).
​
path
string
Path of the file that was written.

​
Example Request

curl -X POST "https://api.xpander.ai/v1/agents/<agent-id>/sandbox/file_write" \
  -H "Content-Type: application/json" \
  -H "x-api-key: <your-api-key>" \
  -d '{
    "path": "output/report.txt",
    "content": "Hello World\n",
    "create_dirs": true
  }'

​
Notes

​
See Also

Authorizations

​
x-api-key
string
header
required

API Key for authentication

Path Parameters

​
agent_id
string
required

Agent UUID

Body

application/json

Request body for creating or overwriting a file in the agent sandbox.

​
path
string
required

Destination file path relative to the sandbox root.

Example:

"output/report.txt"

​
content
string
required

Full file content. Existing files are overwritten.

​
create_dirs
boolean
default:true

When true, missing parent directories are created automatically.

Response

Successful Response

Generic response wrapper returned by agent sandbox endpoints. Not every field is populated for every tool.

​
status
string

Result status of the sandbox operation.

Example:

"ok"

​
stdout
string | null

Standard output captured from the sandbox command. Present for bash.

​
stderr
string | null

Standard error captured from the sandbox command. Present for bash.

​
exit_code
integer | null

Process exit code returned by the sandbox. Present for bash.

​
content
string | null

File contents. Present for file_read.

​
path
string | null

File path affected by the operation. Present for file_write, file_edit, multi_edit, file_share.

​
matches
Matches · object[] | null

Match results. Present for glob and grep.

​
url
string<uri> | null

Public CDN URL. Present for file_share.

​
error
string | null

Error message when the operation fails.