# Polyform Perimeter License 1.0.0

<https://polyformproject.org/licenses/perimeter/1.0.0>

Required Notice: Copyright © 2026 Halton Labs (https://haltonlabs.com)

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## Acceptance

In order to get any license under these terms, you must agree to them as both
strict obligations and conditions to all your licenses.

## Copyright License

The licensor grants you a copyright license for the software to do everything
you might do with the software that would otherwise infringe the licensor's
copyright in it for any permitted purpose. However, you may only distribute
the software according to Distribution License and make changes or new works
based on the software according to Changes and New Works License.

## Distribution License

The licensor grants you an additional copyright license to distribute copies
of the software. Your license to distribute covers distributing the software
with changes and new works permitted by Changes and New Works License.

## Notices

You must ensure that anyone who gets a copy of any part of the software from
you also gets a copy of these terms or the URL for them above, as well as
copies of any plain-text lines beginning with `Required Notice:` that the
licensor provided with the software. For example:

> Required Notice: Copyright © 2026 Halton Labs (https://haltonlabs.com)

## Changes and New Works License

The licensor grants you an additional copyright license to make changes and
new works based on the software for any permitted purpose.

## Patent License

The licensor grants you a patent license for the software that covers patent
claims the licensor can license, or becomes able to license, that you would
infringe by using the software.

## Permitted Purposes

Any purpose is a permitted purpose, except for Competing Uses.

## Competing Uses

The following uses are competing uses:

1. Offering any product or service whose primary function is LLM API proxy,
   LLM usage metering, LLM cost attribution, or LLM API observability, where
   that product or service incorporates or is derived from this software.

2. Offering, hosting, or reselling this software itself — or a substantially
   similar tool built on it — as a standalone product or managed service to
   third parties.

3. Any use of the software by a company, or a company's personnel, that
   develops or sells a product or service that directly competes with Halton
   Meter or the services offered by Halton Labs at https://haltonlabs.com.

For the avoidance of doubt, the following are **not** competing uses:

- Installing and running the daemon on your own machines to track your own
  LLM API spend, including in the course of a commercial business.
- Modifying the daemon for your own internal cost-tracking workflow.
- Building integrations, dashboards, or tooling that reads from the daemon's
  local HTTP API, for your own internal use.

If you are uncertain whether your use is a competing use, email
hello@haltonlabs.com before proceeding.

## Reliability

The licensor cannot revoke this license.

## No Liability

AS FAR AS THE LAW ALLOWS, THE SOFTWARE COMES AS IS, WITHOUT ANY WARRANTY OR
CONDITION, AND THE LICENSOR WILL NOT BE LIABLE TO YOU FOR ANY DAMAGES ARISING
OUT OF THESE TERMS OR THE USE OR NATURE OF THE SOFTWARE, UNDER ANY KIND OF
LEGAL CLAIM.
