All MoneyTools products for AI agents · 116 tools + 21 services

A2A Agent Card validator: Fetch /.well-known/agent-card.json (or legacy agent.json) and validate required A2A fields, skills, transport and security declarations.

Verified contract ABI: Fetch a verified contract's ABI from Sourcify (open data) with proxy resolution: implementation ABI merged, function and event signature lists.

ABI-encode calldata: Build calldata from a function signature and arguments (selector + encoded args). Unsigned bytes only, for agents preparing a tx for a human or wallet to review.

Know who you are about to pay — $0.002 USDC per lookup. Profiles an EVM address or ENS name on 7 chains: EOA vs contract vs EIP-7702 delegated, balances, activity and risk flags.

Multi-chain address validator: Which network is this address for, and is it well-formed? EVM checksum, Bitcoin (legacy/P2SH/SegWit/Taproot), Litecoin, Dogecoin, Tron, Solana, Cosmos bech32, TON. Catches typos before sending.

Find the token approvals that can drain a wallet — $0.003 USDC per scan. Lists risky ERC-20 allowances for well-known routers/spenders and returns UNSIGNED revoke transactions ready for the owner to sign.

APR ↔ APY & compounding: Convert APR to APY (or back) for any compounding frequency, project earnings over N days with optional performance fee, doubling time.

Block number at a timestamp: Find the last block at or before a date/time on any of 7 EVM chains (interpolation search). For historical balance queries, snapshots and log ranges.

Cross-chain transfer status: Track a bridge transfer by its source tx hash: pending / done / failed, bridge used, sending and receiving tx with amounts (LI.FI public status API).

Broken link checker: Extract links from a page and check up to 12 of them (HEAD, GET fallback): status, redirects, latency, broken list.

Bitcoin address balance: Confirmed and pending BTC balance (USD), tx count, address type and reuse for any Bitcoin address (mempool.space public API).

Bitcoin fee estimator: Recommended sat/vB for next block, 30 min, 1 hour and economy, and what your transaction will cost in sats and USD.

Agent payment budget check: Check a planned list of agent payments against a USD budget and per-payment limit; flags invalid/zero payees, duplicates and over-budget.

Business-day calculator: Count business days between dates or add N business days, using the official Taiwan calendar, US federal holidays or plain weekdays.

Cache-Control header parser: Parse a Cache-Control header into structured directives (max-age, no-store, immutable...) and optionally estimate remaining freshness from Age or Date.

See what calldata will do before you sign it — $0.001 USDC per decode. Function name and typed arguments via the open Sourcify signature DB (or your ABI), with approve/transfer/permit risk notes.

Card number checksum (Luhn): Luhn checksum, brand (Visa, Mastercard, Amex, JCB, UnionPay...) and length check; returns only a masked number. Never stored.

Chain registry lookup: Chain id → name, native currency, public RPCs, explorers, CAIP-2 id and a ready wallet_addEthereumChain object (ethereum-lists/chains, CC0).

Color converter + WCAG contrast: Convert hex/rgb/hsl/CSS names to hex, RGB, HSL, CMYK; luminance, best text color and WCAG AA/AAA contrast against another color.

Content hash / cache key: SHA-256/1/384/512 of a text body for cache keys and content addressing. Optional normalize (lf, trim, json canonical). Returns hex, base64, short prefix and byte length. Input not stored.