# Tank Utility > Tank Utility provides LTE-connected propane tank monitors and a read-only REST API that returns fuel-level and telemetry data (tank fill %, temperature, battery, last-report time) for the monitors on an account. Access is via a short-lived token exchanged from account credentials. Tank Utility is owned by Anova. This llms.txt was generated by API Evangelist from apis.yml and the repo artifacts; Tank Utility does not publish its own /llms.txt. ## API - [Tank Utility Propane Monitor API (OpenAPI)](https://raw.githubusercontent.com/api-evangelist/tank-utility/refs/heads/main/openapi/tank-utility-devices-openapi.yml): Reconstructed OpenAPI 3.0 for the three read-only operations — getToken, getDevices, getDevice. Base URL https://data.tankutility.com/api. ## Authentication - Get a token: HTTP Basic (account email + password) against `GET /api/getToken`; the token is valid ~24 hours. - Read calls: pass the token as the `token` query parameter to `GET /api/devices` and `GET /api/devices/{deviceId}`. - [Authentication profile](https://raw.githubusercontent.com/api-evangelist/tank-utility/refs/heads/main/authentication/tank-utility-authentication.yml) ## Artifacts - [API conventions](https://raw.githubusercontent.com/api-evangelist/tank-utility/refs/heads/main/conventions/tank-utility-conventions.yml) - [Error codes](https://raw.githubusercontent.com/api-evangelist/tank-utility/refs/heads/main/errors/tank-utility-error-codes.yml) - [Data model](https://raw.githubusercontent.com/api-evangelist/tank-utility/refs/heads/main/data-model/tank-utility-data-model.yml) - [Lifecycle](https://raw.githubusercontent.com/api-evangelist/tank-utility/refs/heads/main/lifecycle/tank-utility-lifecycle.yml) - [Agent skill: read tank level](https://raw.githubusercontent.com/api-evangelist/tank-utility/refs/heads/main/skills/tank-utility-read-tank-level.md) ## Docs - [Homeowner site](https://tankutility.com) - [Customer portal / login](https://portal.tankutility.com) - [Support center](https://support.tankutility.com/hc/en-us) - [Blog](https://tankutility.com/blog/) - [Community Python client (PyPI)](https://pypi.org/project/tank-utility/)