CryptoTaxEdge

US crypto tax classification for on-chain transactions: tx hash in — canonical category, US tax treatment, confidence, and an honest needsreview flag out.

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What it can do

  • Classify Transaction: Classify a single blockchain transaction using CryptoTaxEdge's multi-source consensus engine — the same engine and serve semantics as the public REST /v1/classify endpoint. Retur
  • Lookup Contract: Look up a smart contract in CryptoTaxEdge's registry. Returns protocol metadata, contract type, verified ABI availability, label, and category hints. Use before deciding whether to cl
  • Classify Batch: Classify a batch of blockchain transactions (up to 100) using CryptoTaxEdge's classification engine. Built for accounting platforms integrating CTE as their classification layer. Retur

What data it sees

Do you need an account

An API key from the service settings is required

US crypto tax classification for on-chain transactions: tx hash in — canonical category, US tax treatment, confidence, and an honest needs_review flag out. Backed by 14,000+ verified protocol rules.

How to connect

How to connect CryptoTaxEdge to Claude

The server address to paste into Claude settings:

https://cryptotaxedge--sturs49.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect CryptoTaxEdge to ChatGPT

The server address to paste into ChatGPT settings:

https://cryptotaxedge--sturs49.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect CryptoTaxEdge to Cursor

The server address to paste into Cursor settings:

https://cryptotaxedge--sturs49.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (4)

Raw names from tools/list. Only developers need these.

classify_transactionClassify a single blockchain transaction using CryptoTaxEdge's multi-source consensus engine — the same engine and serve semantics as the public REST /v1/classify endpoint. Returns the /v1 contract fields: category (swap / transfer / stake / lend / bridge / etc.), treatment (disposal / income / non_taxable / expense / needs_review), taxable, confidence, needs_review, plus a natural-language description. Works for EVM chains and Solana. Provide tx_hash (chain optional — auto-detected), or contract_address + function_selector + chain for a rule-library tuple lookup.
lookup_contractLook up a smart contract in CryptoTaxEdge's registry. Returns protocol metadata, contract type, verified ABI availability, label, and category hints. Use before deciding whether to classify a tx.
classify_batchClassify a batch of blockchain transactions (up to 100) using CryptoTaxEdge's classification engine. Built for accounting platforms integrating CTE as their classification layer. Returns per-transaction: canonical category (swap / transfer / income_receipt / fee_payment / borrow / repay / collateral_supply / collateral_withdraw / liquidity_add / liquidity_remove / unclassified), tax treatment (taxable, tax category), confidence score, and a natural-language explanation. Complex multi-step transactions (flash loans, batch NFT sales, bridges, DCA programs) additionally return a per-leg breakdown and a preparer-ready memo with IRS citations. EVM + Solana. Pass engagement_id / firm_id to apply firm-specific classification policy when configured.
map_to_chart_of_accountsMap classified blockchain transactions into journal-entry-ready ledger lines against a chart of accounts. For each transaction (up to 100): debit account, credit account, optional gain/loss plug account, memo (protocol + reasoning), confidence, and a route-to-review flag — plus category roll-ups with the governing US tax authority (IRC §1001, §61, Rev. Rul. 2019-24, Rev. Rul. 2023-14, etc.). Pass your own chart_of_accounts (array of {name, type}) and the tool maps to YOUR account names; omit it for a standard crypto-treasury chart. Suggested, non-binding entries — the ledger platform owns amounts, cost basis, and posting.