Let an agent's runs take code and browser steps
const url = 'https://api.katara.com/katara/v1/orgs/2489E9AD-2EE2-8E00-8EC9-32D5F69181C0/environments/2489E9AD-2EE2-8E00-8EC9-32D5F69181C0/agent-identities/2489E9AD-2EE2-8E00-8EC9-32D5F69181C0/sandbox-access';const options = { method: 'POST', headers: { 'Idempotency-Key': 'example', 'X-Katara-CSRF': '1', Authorization: 'Bearer <token>', 'Content-Type': 'application/json' }, body: '{"budget_id":"2489E9AD-2EE2-8E00-8EC9-32D5F69181C0","usage_class":"simulation","expires_at":"2026-04-15T12:00:00Z","expected_agent_epoch":1}'};
try { const response = await fetch(url, options); const data = await response.json(); console.log(data);} catch (error) { console.error(error);}curl --request POST \ --url https://api.katara.com/katara/v1/orgs/2489E9AD-2EE2-8E00-8EC9-32D5F69181C0/environments/2489E9AD-2EE2-8E00-8EC9-32D5F69181C0/agent-identities/2489E9AD-2EE2-8E00-8EC9-32D5F69181C0/sandbox-access \ --header 'Authorization: Bearer <token>' \ --header 'Content-Type: application/json' \ --header 'Idempotency-Key: example' \ --header 'X-Katara-CSRF: 1' \ --data '{ "budget_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "usage_class": "simulation", "expires_at": "2026-04-15T12:00:00Z", "expected_agent_epoch": 1 }'Requires an owner or admin and an environment entitled to Locus for the usage class. Issues the grant a run needs for sandbox steps: the agent may execute actions and create runs on itself, spending from the named budget, until expires_at. Requires expected_agent_epoch from the reviewed identity; an identity changed since conflicts. Retain the exact body and original idempotency key after an uncertain response.
Authorizations
Section titled “Authorizations”Parameters
Section titled “Parameters”Path Parameters
Section titled “Path Parameters”Header Parameters
Section titled “Header Parameters”Browser cookie mutations require value 1 and an allowed Origin. Session bearer clients may omit this header.
Required for cookie-authenticated changes. Use the UUID of the account that loaded the application. A different current cookie account returns account_changed before the handler runs. Session bearer and API key clients do not require this header.
Request Bodyrequired
Section titled “Request Bodyrequired”The budget sandbox steps spend from, the usage class they run under, when the grant ends, and the agent identity epoch the caller reviewed.
object
Responses
Section titled “Responses”Successful request
object
Examplegenerated
{ "operation_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "resource_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "completed": true}Account_changed: reload and review with the signed-in account.
default
Section titled “default”Request error
object
object
Stable; branch on it. Any operation can answer invalid_request, with param naming the refused field when there is one; human_session_required, when an API key, service account or workload calls an operation only a signed-in person may perform; reauthentication_required, when a person’s sign-in is too old for the operation; permission_denied; route_not_found and method_not_allowed, when no operation matches the path or method; and feature_unavailable, when the operation’s service is not enabled on this deployment.
The request field a refusal is about, such as the agent_id or run_id query parameter; null when the refusal is not about one field.
Example
{ "error": { "action": "sign_in" }}