About SourcedKit
Calculators where the answer cites its source, not a search engine summary.
Why SourcedKit exists
Most online calculators don't tell you where their numbers come from. GLP-1 cost estimators, recovery timing charts, and most consumer math tools leave the math buried, the sources missing, and the "last reviewed" date anyone's guess. AI summaries make this worse. They paraphrase without attribution, which means you can't verify the answer or update it when authorities change their guidance.
SourcedKit is built on the opposite principle. Every calculator quotes its primary source verbatim, links to it, and shows when we last verified it. If a number changes at the FDA, ACOG, or a manufacturer page, we update the calculator and stamp a new review date. You can always check our work.
What SourcedKit does
We're building a portfolio of 76+ calculators across categories where the math matters and the sources exist. Each calculator follows the same template:
- Inputs collected via simple form (no account, no tracking beyond what your browser sends).
- Math computed in your browser. Nothing is sent to a server.
- Result shown with a plain-language explanation.
- Every assumption linked to its primary source (FDA label, ACOG guidance, manufacturer savings card terms, government regulation).
- Last-reviewed date prominently displayed.
Who builds SourcedKit
SourcedKit is independently built and operated. The editorial team writes the copy, verifies the sources, and maintains the math. The site is supported by relevant affiliate partnerships (clearly marked) and a future paid newsletter tier for power users.
We're transparent about what we are and what we're not. We're not doctors. We're not lawyers. We're not financial advisors. We're a small operation that takes authority sources, makes them computable, and shows our work.
What SourcedKit will not do
- We don't give personalized advice. Calculator outputs are estimates based on the inputs you provide and the sources we cite. Always confirm with a qualified professional for decisions that matter.
- We don't sell your data. We don't have user accounts. We don't run third-party analytics.
- We don't paywall accuracy. The calculators are free. The sources are linked. The methodology is published. If you want to verify an answer, you can.
- We don't fake authority. If a calculator's source data is uncertain or conflicting, we say so. If we don't know, we say we don't know.
Contact
Found a math error? A broken source link? A calculator that should exist but doesn't? Email info@sourcedkit.com. Every message gets read.
For the rules we follow when sourcing and verifying every calculator, see our editorial standards.