Update a sandbox; omitted fields stay unchanged and supplied lists replace their contents. Dependency changes may start a build; resending a failed specification retries it. buildStatus: null means no image build is needed. Requires workspace Admin access and a configured remote Function runtime. With billing enabled, Max or Enterprise is required unless deployment entitlement overrides it; billing-disabled deployments require sandbox entitlement. Creates and updates share a rate limit; respect Retry-After. Workspace API keys return 403; use a personal API key or scoped OAuth token.
OAuth scope: api:write.
/api/v2/sandboxes/{sandboxId}Your Sim API key, personal or workspace-scoped. Generate one under Settings, then API Keys. Operations that reject workspace keys say so in their own description.
In: header
Request examples use an API key. For OAuth, replace the X-API-Key header with Authorization: Bearer YOUR_ACCESS_TOKEN.
curl -X PATCH "https://www.sim.ai/api/v2/sandboxes/string" \ -H "X-API-Key: YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "workspaceId": "a91c4b2e-6d3f-4e8a-b5c7-0d9e2f1a8c64", "dependencies": [ "pandas==2.2.2", "requests", "pyarrow" ] }'{
"data": {
"id": "V1StGXR8Z5jdHi6BmyT",
"name": "data-tools",
"language": "python",
"dependencies": [
"pandas==2.2.2",
"requests",
"pyarrow"
],
"cliTools": [],
"systemPackages": [
"graphviz"
],
"buildStatus": "pending",
"errorCode": null,
"errorMessage": null,
"errorDetail": null,
"builtAt": null,
"createdAt": "2026-06-01T09:14:00.000Z",
"updatedAt": "2026-06-20T14:02:11.000Z"
}
}{
"error": {
"code": "BAD_REQUEST",
"message": "Invalid request"
}
}{
"error": {
"code": "UNAUTHORIZED",
"message": "Authentication required"
}
}{
"error": {
"code": "FORBIDDEN",
"message": "Insufficient workspace permissions",
"details": {
"code": "INSUFFICIENT_WORKSPACE_ROLE"
}
}
}{
"error": {
"code": "NOT_FOUND",
"message": "Not found"
}
}{
"error": {
"code": "CONFLICT",
"message": "The request conflicts with the current state of the resource"
}
}{
"error": {
"code": "PAYLOAD_TOO_LARGE",
"message": "Request body is too large"
}
}{
"error": {
"code": "UNSUPPORTED_MEDIA_TYPE",
"message": "Request body must be sent as application/json"
}
}{
"error": {
"code": "RATE_LIMITED",
"message": "API rate limit exceeded",
"details": {
"retryAfter": "2026-01-01T00:00:30.000Z"
}
}
}{
"error": {
"code": "INTERNAL_ERROR",
"message": "Internal server error"
}
}{
"error": {
"code": "SERVICE_UNAVAILABLE",
"message": "Service temporarily unavailable"
}
}Path parameters
Unique sandbox identifier.
1 <= lengthRequest body
application/json
Sandbox fields to change; at least one editable field is required.
TypeScript definitions
Use the request body type in TypeScript.
Response body
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json