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CryptoTaxEdge
Crypto tax classification API for devs.
The US crypto tax classification API. One call returns the tax treatment, confidence, and reasoning for any on-chain transaction, including complex DeFi.
It started with a habit I picked up while building in this space: running real transactions through the popular crypto tax tools and checking their answers against the actual on-chain evidence. A liquid staking exit would come back labeled as ordinary income. A bridge would come back as a taxable sale. Always confidently, never with any signal that the answer might be wrong. A visible error is fixable. An error behind a clean green checkmark is how bad returns get filed.
So the engine has one rule at its core: never guess silently. Every classification returns the tax treatment, the reasoning in plain English, a confidence score, and an explicit review flag when the evidence does not support a verdict. For the person reviewing a client's year, "12 of these 4,000 transactions need a human" beats 4,000 unqualified answers.
The build evolved in stages. First a rules library I maintained by hand. Then a pattern engine with multi-source consensus. Then AI adjudication with deterministic guardrails, meaning the model never overrides what the receipts and logs actually show. It now stands at 13,000+ verified rules across 80+ chains, and it compounds: every hard transaction it resolves becomes a rule the next lookup benefits from.
Three ways to try it today: the Explorer (enter a transaction hash, get the treatment and the reasoning), the REST API and MCP server for your own app or agent, and a Chrome extension that shows verdicts inside the tax platforms accountants already work in.
It's built for crypto tax practitioners and the developers building for them. Send me a transaction your current tool gets wrong and I'll run it.
About CryptoTaxEdge on Product Hunt
“Crypto tax classification API for devs.”
CryptoTaxEdge was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #147 on the daily leaderboard. The US crypto tax classification API. One call returns the tax treatment, confidence, and reasoning for any on-chain transaction, including complex DeFi.
On the analytics side, CryptoTaxEdge competes within Chrome Extensions, Fintech, Developer Tools and Artificial Intelligence — topics that collectively have 1.1M followers on Product Hunt. The dashboard above tracks how CryptoTaxEdge performed against the three products that launched closest to it on the same day.
Who hunted CryptoTaxEdge?
CryptoTaxEdge was hunted by Kevin Stursberg. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of CryptoTaxEdge including community comment highlights and product details, visit the product overview.
Kevin Stursberg