24 Services from evm-canon-base.onrender.com

Matches trade lots using FIFO (first-in, first-out) order and computes realized gain per disposal using exact decimal arithmetic

Encodes ERC-20 transfer calldata from a human-readable token amount, automatically resolving token decimals from a pinned registry

Applies Last-In-First-Out (LIFO) cost-basis matching to a list of acquisition lots and disposal events, returning realized gain/loss per disposal calculated in exact decimal arithmetic.

Matches disposals against the highest-cost acquisition lots first and returns realized gain/loss per disposal using exact decimal arithmetic

Matches crypto trade disposals to acquisition lots using FIFO, LIFO, or HIFO accounting methods, returning realized gains and remaining inventory in exact decimal math.

Decodes raw EVM calldata into typed function arguments and attaches deterministic risk flags for dangerous patterns like unlimited token approvals and admin actions

Generates ready-to-sign EVM calldata for wrapping native tokens (e.g. ETH→WETH) using a WETH-style deposit pattern, including the value to attach to the transaction.

Normalizes a batch of EVM addresses to EIP-55 mixed-case checksum format, flagging invalid entries without failing the entire batch

Returns all remaining unsold tax lots after applying all trades, each with its acquisition timestamp and unit cost basis.

Resolves ENS names to Ethereum addresses and performs reverse resolution with forward-verification of reverse records

Builds EIP-2612 permit calldata for signature-based ERC-20 token allowances without requiring a separate approval transaction

Validates a trade ledger and reports all problems at once: unmatched sells, duplicate entries, bad numeric values, and invalid timestamps.

Encodes EVM calldata from a named function signature and human-readable arguments, returning deterministic risk flags without signing or broadcasting

Encodes delegated ERC-20 transferFrom calldata for on-chain execution, spending a previously granted allowance to move tokens from one address to another.

Computes average cost basis for crypto asset disposals by pooling all acquisitions at a running average unit cost and returning realized gain per disposal

Encodes ERC-20 approve() calldata for a given spender and amount, automatically flagging unlimited (max uint256) allowances before any transaction is signed

Builds Uniswap-V2-style exact-input swap calldata for a given token path, ready to submit on-chain.

Builds EVM calldata for setApprovalForAll NFT operations, flagging the transaction as high risk before any signing occurs

Computes realized gain/loss summary per disposal event plus aggregate totals using default cost-basis matching, without exposing individual lot-level detail

Computes net asset positions directly from raw trade/ledger data without any cost-basis lot matching, handling broken or unreconcilable ledgers

Normalizes a raw EVM token or value payload into a schema-validated, deterministic JSON representation with honest nulls for missing fields

Splits each asset disposal into short-term and long-term capital gain/loss portions based on how long the consumed tax lots were held

Encodes ERC-721 safeTransferFrom calldata for NFT transfers on EVM-compatible chains

Encodes calldata for a WETH-style withdraw (unwrap) operation to convert wrapped native token back to native ETH on EVM chains