My Fuel Savings
Acknowledgements
The open source software, typefaces, and public data that My Fuel Savings is built on — with the licenses and copyright notices they carry.
Last Updated: August 13, 2026
1. About These Acknowledgements
My Fuel Savings is built on work that other people gave away. The components listed here are used under open source licenses that permit commercial use, and each one asks in return that its authors be credited and its license carried along. This page is where we do that.
Listing a component here means we use it. It does not mean its authors built, reviewed, sponsored, or endorsed My Fuel Savings.
For our own terms, see the Terms of Service and Privacy Policy. Third-party brand names that appear in your statements — fuel discount programs, truck stops, and travel centers — are covered by the trademark provisions of the Terms of Service.
2. Software Components
Software we distribute as part of the app, or run on our servers to operate it.
oidc-client-ts 3.5.0
Handles signing you in and out, and keeps your session valid while you use the dashboard.
Copyright 2018, Brock Allen, Dominick Baier
Licensed under the Apache License 2.0 · Project home ↗
jwt-decode 4.0.0
Reads the sign-in token your browser receives so the app knows which account it is showing.
Copyright (c) 2015 Auth0, Inc. <support@auth0.com> (http://auth0.com)
Licensed under the MIT License · Project home ↗
aws-jwt-verify 5.2.1
Verifies your sign-in token on our servers, so only you can reach your own data.
Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
Licensed under the Apache License 2.0 · Project home ↗
AWS SDK for JavaScript v3
Connects our servers to the AWS services that store your statements and run the data extraction.
Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
Licensed under the Apache License 2.0 · Project home ↗
3. Typefaces
The app is set in five typefaces, each released under the SIL Open Font License 1.1 and served through Google Fonts.
| Typeface | Designed by | Used for |
|---|---|---|
| Anton | Vernon Adams and contributors | Large figures and the wordmark |
| Archivo | Omnibus-Type | Section headings |
| Oswald | Vernon Adams, Kalapi Gajjar, Cyreal | Navigation, labels, and buttons |
| Public Sans | U.S. General Services Administration | Body text, tables, and forms |
| IBM Plex Mono | IBM Corp. | Numeric and tabular data |
Public Sans derives from Libre Franklin by Impallari Type.
4. Map and Location Data
The fuel map is drawn from public data published by the U.S. Census Bureau, a work of the U.S. federal government and therefore in the public domain:
- State boundaries — Census cartographic boundary files, used to draw the map outlines.
- ZIP code centroids — the Census ZIP Code Tabulation Area Gazetteer, used to place a pin near each fill-up.
The map is drawn by the app itself from that data. It uses no mapping service, no tile server, and no third-party mapping library, so viewing it sends no request to anyone else.
Pins are positioned from the ZIP code on your statement, which places them near the center of that ZIP code rather than at the exact station. The map shows roughly where you filled up, not a precise location.
5. Services We Build On
My Fuel Savings runs on Amazon Web Services, and reads your uploaded statements using Claude, an AI model from Anthropic, through Amazon Bedrock. These are services we pay for rather than open source components, so they carry no license notice — but you should know they are in the path your data travels.
How your documents are handled during that processing, including the commitment that they are not used to train AI models, is described in Privacy Policy §5.
6. Full License Texts
The complete text of each license referenced above.
Apache License 2.0
Apache License
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http://www.apache.org/licenses/
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MIT License
The MIT License (MIT) Copyright (c) 2015 Auth0, Inc. <support@auth0.com> (http://auth0.com) Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.