bess-x402.onrender.com · 183 listed services · provider site
Total supply, name, symbol and decimals of an ERC-20 or ERC-721 contract, read on-chain. Use for market-cap math, supply checks and token due diligence.
Receipt of a mined EVM transaction: success or revert, gas used, effective gas price, fee (and L2 L1 fee), created contract and event logs with Transfer and Approval decoded. Use to confirm a payment or swap.
Detect upgradeable proxies: EIP-1967 transparent/UUPS, beacon, EIP-1822, ZeppelinOS, EIP-1167 clones and Safe-style proxies, returning implementation, admin and beacon addresses. Use for audits and to fetch the real ABI.
Next transaction nonce of an EVM address (confirmed and pending), pending tx count, native balance, contract flag and EIP-7702 delegate. Use before signing or to detect stuck transactions.
Current owner of an ERC-721 NFT by contract and token ID. Use to verify ownership for token gating, sales or airdrops.
Live state of an EVM network: chain ID, latest block number and age, gas price, base and priority fee, block gas use and tx count. Use as a health check before sending transactions.
Convert a value between units of length, area, volume, mass, energy (kWh, MWh, BTU, GJ), power, pressure, temperature, speed, data size, time and compound units like kg/m^3 or mpg. Exact, no lookup tables to maintain.
Estimate the gas a transaction will use (eth_estimateGas) and its cost at the current gas price, with a 20% buffer; fails clearly when the call would revert. Use before signing.
Black-Scholes price and greeks (delta, gamma, vega, theta, rho) of a European call or put, probability in the money and breakeven; or the implied volatility from a market price. For stocks, FX or crypto.
Amortizing loan or mortgage: periodic payment, total interest, payoff date, effect of extra payments and a yearly or full payment schedule. Any payment frequency.
An EVM block by number or tag (latest, finalized, safe): hash, parent, time, miner, gas used and limit, base fee, size and its transaction hashes.
Compare two texts line by line: unified diff, list of added, removed and changed lines, line and character similarity, optionally ignoring whitespace and case. Use to compare documents, configs or model outputs.
How much a spender (router, Permit2, protocol) is approved to move from an owner's ERC-20 balance, with an unlimited-approval flag. Use to check approvals before a swap or to audit risky approvals.
Price of a coin in KRW on Upbit and Bithumb with 24h change, high/low and volume, plus the kimchi premium versus the global USD price. Use for Korea arbitrage signals and local pricing.
Email authentication audit of a domain: MX, SPF (lookup count and policy), DMARC policy and reporting, DKIM on common selectors, MTA-STS, TLS-RPT and BIMI, graded A-F with fixes. Use for deliverability and phishing-risk...
Score 0-100 how ready a website is for AI agents: llms.txt, agent card, MCP manifest, OpenAPI spec, x402 payments, AI-crawler rules in robots.txt, sitemap and structured data, with suggestions.
Call any read-only contract function without a transaction or ABI file: give the signature with return types, e.g. balanceOf(address)(uint256) or getReserves()(uint112,uint112,uint32), plus arguments; returns decoded val...
ABI and readable function/event signatures of a verified smart contract from Sourcify, with contract name, compiler, licence, proxy implementation and deployer. Use before calling or decoding a contract.
Metadata of an ERC-721 or ERC-1155 token: token URI resolved from IPFS, Arweave, data URI or https into name, description, image link and traits. Use for NFT displays, rarity or appraisal.
Event logs a contract emitted (eth_getLogs), filtered by event signature such as Transfer(address,address,uint256) or a topic hash, over a block range (max 5,000 blocks, default last 100). Use to monitor swaps, mints or...
Recent ERC-20 Transfer events for a token, a wallet (in and out) or both over the last N blocks (max 5,000), with sender, receiver and amount in token units. Use to confirm incoming payments or watch whale moves.
Latest EU and country economic indicators from Eurostat: HICP inflation, unemployment, GDP growth, consumer confidence, government debt and 10-year bond yields, for EU27, the euro area and 30+ countries.
Decode EVM transaction input data: looks up the 4-byte function selector and decodes every argument (addresses, amounts, arrays). Use to see what a transaction or signing request will really do.
What is at an EVM address: wallet (with EIP-7702 delegate) or contract, bytecode size, token standard (ERC-20/721/1155), name, symbol, decimals, supply, owner() and proxy implementation. Use before interacting with an un...
Check CVEs against CISA's Known Exploited Vulnerabilities catalog or search it by vendor/product: date added, remediation due date, ransomware use, CWE and required action. Use to prioritise patching.
Lint a Dockerfile for security and best practice: unpinned or latest images, running as root, secrets in ENV/ARG, curl piped to sh, ADD of URLs, apt and pip caches, sudo, chmod 777, missing HEALTHCHECK. Scored.
Largest US federal contracts, grants or loans by keyword or recipient from USAspending.gov: recipient, amount, agency, dates, place, NAICS and description. Use for B2G sales research or due diligence.
Aave V3 position of any wallet: collateral, debt and remaining borrowing power in USD, LTV, liquidation threshold, health factor and how far collateral can fall before liquidation. Use for liquidation alerts.
Search US federal rules, proposed rules, notices and presidential documents: title, agency, dates, comment deadline, docket, abstract and links. Use to track US regulation on a topic.
Whale alerts: the largest recent ERC-20 transfers (default USDC over $1M) in the latest blocks, with sender, receiver, amount and mint/burn flag. Works for USDC, USDT, DAI or any token on 5 EVM chains.
Provider identity is derived from the domain or repository in the source record. If two vendors share a host, they appear together here — that is a limitation of the data, not a statement about ownership.