“A cross-chain bridge is not a sale, but plenty of tools tag it like one and inflate the client’s gains. CryptoTaxEdge reads what actually moved and calls the bridge a non-taxable transfer, with a confidence score, so I’m confirming its read instead of untangling the transaction by hand.”
The Digital Asset Tax Classification Layer ready as an API.
One API call returns the US tax treatment of any on-chain transaction it decodes, with confidence, the reasoning, and review routing when the answer is uncertain.
Or try:
Free developer tier · No credit card required
13,000+ rules
Verified tax treatments
2.5M+ contracts
Decoded + labeled
70+ protocols
With verified rules
How it works
Inside the classification engine.
Detect the chain, parse through 13,000+ verified rules across 70+ protocols, cross-check independent sources. Every transaction lands in your ledger with a confidence score, never a silent guess.
01
Enter hash
Enter a transaction hash. Any chain, any protocol. We take it from there.
02
Find chain
We auto-detect the network and decode the function call, across 80+ chains.
03
Match the rule library
Match the protocol against our curated rules library: 13,000+ verified rules across 70+ protocols.
04
Compare sources
Multiple independent providers run in parallel. Our AI engine resolves conflicts.
05
Classified row
Out comes a classified, confidence-scored row, ready to export.
What we build
One classification engine.
Every way you work.
Integrate the API, or use the same engine in your browser, your accounting tool, or your AI agent. Built for platforms, accountants, and traders. No per-transaction surprises.
REST API
Classification API
Call the engine directly. Send one hash or a batch, get back category, tax treatment, and a confidence score, the same classifications behind every surface here. Built for subledgers, tax platforms, and accounting tools.
- REST endpoint + batch · webhooks
- Category, tax treatment & confidence score
- 80+ chains, 13,000+ rules across 70+ protocols
- Volume-based pricing for platforms
For AI Agents
CTE for AI agents MCP
Plug any MCP-compatible client into the same classification engine behind the API. Free during preview · paid tier launching soon.
- Same consensus engine as the API
- Drop-in tools for any MCP client
- No setup: point and classify
- Free preview, no credit card
Web App · Live
Classification Explorer
No code? Enter hundreds of transaction hashes in the browser. Every result is classified, confidence-scored, and export-ready in minutes. Independent data pipelines cross-check each transaction and our AI flags conflicts automatically.
- Upload a CSV of transaction hashes, hundreds in one pass
- Multi-source verified + AI conflict detection
- 80+ chains, 13,000+ rules across 70+ protocols
- 10/day free (no signup) · 250/mo signed-in
Chrome Extension
Live TX Classifier
Classifies transactions in real-time while you work in Koinly or any crypto accounting tool. See exactly what happened on-chain (swap, bridge, stake, claim) without leaving your workflow.
- Works inside Koinly and other accounting tools
- AI classification with accounting flags
- Labels inline, no context switching
- Confidence-scored on every classification
Coverage
Supported chains
Ethereum
Base
Polygon
Arbitrum
Optimism
BSC
Solana
Avalanche
zkSync
Linea
Scroll
Blast
Fantom
Gnosis
Celo
Mantle
Polygon zkEVM
Mode
Manta
Cronos
Moonbeam
Moonriver
Sonic
Metis
Ronin
Lisk
Fuse
Astar
Flow
PulseChain
Fraxtal
Taiko
Aurora
Arb Nova
Hyperliquid
80+ chains supported · Auto-detected from any transaction hash
In practice
How CPAs describe the workflow shift.
“Crypto engagements used to mean a couple days per client just to reconcile activity across chains. CryptoTaxEdge helps us through that same work in an afternoon. Across a full client book, that kind of time savings compounds fast.”
Pricing
Start on the API.
Scale when you ship.
The classification API is free to start and $249/month in production. Accounting firms get the in-app toolkit for $99/month.
For developers and platforms
Build classification into your own app, by API or MCP. Verdict, confidence, reasoning, and grey-area position on every transaction.
Developer
$0
free forever
For building and evaluation.
- ✓250 transactions a month
- ✓API and MCP server
- ✓All 80+ chains, 13,000+ verified rules
For production apps
Pro
$249
per month
Production API volume.
- ✓About 25,000 transactions a month
- ✓Batch endpoint and webhooks
- ✓Priority classification
Enterprise
Contact
custom volume and embeds
Partner and embed integrations.
- ✓Custom volume
- ✓Embed and partner rail
- ✓Dedicated support
For accounting firms
Founder rate
Firm
$99
per month · 2 seats included, $49 per added seat
The in-app toolkit for firms handling crypto client work.
- ✓Classification Explorer, unlimited
- ✓Downloadable classification exports
- ✓Chrome extension for tax platforms
Founder rate. The price rises to $149 as we add firm features. Lock in $99/month now and keep it.
The Classification Explorer and Chrome extension stay free to try for everyone, no account needed.
Questions
Good to know.
What is CryptoTaxEdge?
CryptoTaxEdge is a US digital-asset tax-treatment classification engine, available as an API. Given a blockchain transaction hash, it returns the tax category, the treatment (disposal, income, non-taxable, expense, or needs-review), a confidence score, and the reasoning. Platforms and developers embed it by API or MCP; accounting firms use it in-app for client work.
What does the classification API return?
One call returns the transaction category (such as swap, reward, or bridge), the tax treatment, a taxable flag, a confidence score from 0 to 100, a needs-review flag, and the assets sent and received. When sources conflict or confidence is low, it returns needs-review with the taxable flag set to null instead of guessing.
How is tax treatment determined?
Multiple independent blockchain data sources parse each transaction in parallel. A patent-pending AI consensus engine reconciles them, applies 13,000+ verified protocol rules, and maps the result to one tax treatment under US framing: disposal under IRC section 1001, income under IRC section 61, or non-taxable. Grey-area categories expose a documented house default and the alternative position, and are configurable per firm.
Can I try it without signing up?
Yes. Classify up to 10 transactions a day for free: no account, no credit card, nothing. Re-running the same hash is always free and never counts against the limit. Create a free account to unlock 250/month. Upgrade anytime for higher limits.
How accurate is the AI classification?
Multiple independent providers parse each transaction; our patent-pending AI engine resolves disagreements and surfaces a result only when sources align. When the engine is not confident, it says so: low-confidence transactions are routed to review rather than silently guessed at. The confidence score on every result is an internal routing signal that gates that decision, not a quality claim. Verify classifications with a qualified tax professional before filing.
Do you store my wallet data?
We never connect to your wallet or ask for private keys, and classification runs on publicly available blockchain data using transaction hashes. If you create an account, we store standard account data such as your email address, as described in our Privacy Policy. Anonymized, aggregated classification data improves the engine over time and is never linked to your wallet address.
What chains are supported?
80+ chains including Ethereum, Base, Arbitrum, Optimism, Polygon, BSC, Solana, Avalanche, zkSync, Scroll, Linea, Blast, Fantom, Gnosis, and many more. Chain detection is automatic. Just enter your hash.
Can I use this with Koinly?
Yes. Our CSV export is formatted to match Koinly's import format. Every transaction includes the exact tag Koinly expects. No manual mapping needed.
How do you count transactions?
Per transaction: one hash is one transaction, whether it is a transfer or a swap. Re-running the same hash is always free, and only successful classifications count; a failed or review-routed result never uses your quota. In the app: 10 a day with no account, 250/month on a free Developer account, unlimited on the Firm plan. Via the API: the same 250/month Developer pool, ~25,000 on Pro, usage-based on Enterprise.
How many team members can we add on the Firm plan?
The Firm plan is $99/month and includes 2 seats. Additional seats are $49/month each.
How does the Classification Explorer work?
Enter transaction hashes, one at a time or as a CSV batch. The Classification Explorer classifies each transaction through our multi-source pipeline and exports a Koinly-ready CSV, saving hours of manual work.
How is this different from Koinly, CoinTracker, or TaxBit?
Most tools rely on a single labeling vendor or static rule set, then guess silently when the data is ambiguous. CryptoTaxEdge runs every transaction through multiple independent data providers in parallel, our patent-pending AI engine resolves disagreements, and any unresolved conflict gets flagged for review instead of guessed at. The output you import into Koinly, CoinTracker, or your firm's tax stack is verified, not invented.
Is swapping one cryptocurrency for another a taxable event?
Yes. Under US tax rules a crypto-to-crypto swap is a disposal of the asset you send, a capital gain or loss event under IRC Section 1001. CryptoTaxEdge classifies swaps as a taxable disposal. This is informational only, not tax advice; verify with a qualified tax professional before filing.
Is wrapping ETH into WETH a taxable event?
The common position is no. Wrapping or unwrapping is the same underlying asset in a different form, not a change of ownership, so CryptoTaxEdge treats it as non-taxable by default. Some practitioners treat it as a disposition, so the treatment is configurable to your firm's stance. This is informational only, not tax advice; verify with a qualified tax professional before filing.
How is a liquidity pool deposit taxed in the US?
There is no LP-specific IRS guidance, so it is genuinely two-sided: a deposit or withdrawal can be treated as non-taxable or as a crypto-to-crypto disposal depending on your firm's position. CryptoTaxEdge flags liquidity events as a grey area and lets your firm set the house treatment rather than guessing. This is informational only, not tax advice; verify with a qualified tax professional before filing.
Are crypto staking rewards taxable?
Yes. Under Rev. Rul. 2023-14 the IRS treats staking rewards as ordinary income at their fair market value when received. CryptoTaxEdge classifies reward claims as income at receipt. This is informational only, not tax advice; verify with a qualified tax professional before filing.
Is bridging tokens to another chain a taxable event?
The common position is no. Moving the same asset across chains through a bridge is not a disposition, so CryptoTaxEdge treats a bridge as non-taxable. This is informational only, not tax advice; verify with a qualified tax professional before filing.