# HTTP: license

Arc agent documentation

All 5 license endpoints, with request fields and access notes.

[HTTP directory](/arc/docs/reference/http) · [Transport guide](/arc/docs/guides/http)

Request fields and access notes below are partial. Additional constraints and permissions may apply. Prefer the corresponding MCP tool and schema where available.

## GET /v1/license

Read license.

This directory does not provide a request schema for this endpoint. Use the corresponding supported tool or client where available.

## POST /v1/license/activate

License activate.

Access: This action may require confirmation. Follow the confirmation details returned for your request. LAN writes require an active session token. Local loopback requests are exempt from this requirement by default; other permissions still apply.

### Request body fields (partial)

| Field | Type | Required | Constraints |
| --- | --- | --- | --- |
| `license_key` | string | yes | See operation notes. |

Other constraints may apply, including for fields marked optional.

## POST /v1/license/deactivate

License deactivate.

Access: This action may require confirmation. Follow the confirmation details returned for your request. LAN writes require an active session token. Local loopback requests are exempt from this requirement by default; other permissions still apply.

This directory does not provide a request schema for this endpoint. Use the corresponding supported tool or client where available.

## GET /v1/license/update-token

Serve an update-entitlement credential to the local desktop only.

Access: Available only to loopback callers.

This directory does not provide a request schema for this endpoint. Use the corresponding supported tool or client where available.

## POST /v1/license/validate

Perform an explicit informational online license check.

Access: LAN writes require an active session token. Local loopback requests are exempt from this requirement by default; other permissions still apply.

This directory does not provide a request schema for this endpoint. Use the corresponding supported tool or client where available.