Onchain & crypto

Validate up to ten JSON documents against JSON Schema draft-07 or 2020-12. Returns per-document validity and actionable errors with instance paths. Runs isolated with bounded time and memory; no remote schema loading or automatic data modification.

Credit assessment of an AI agent wallet for a given USDC amount by RSoft Bank's underwriting model (Kelly-criterion sizing over on-chain history and ERC-8004 reputation). Returns approved true/false, a credit score, a risk tier from AAA to CCC and the annual rate the bank would charge. Use it to pre-qualify an agent before requesting a loan, or as an independent agent credit score when deciding whether to lend to, defer payment from or trust an autonomous agent with funds.

+2 more from RSoft Bank

Is this x402 endpoint working right now? Give one endpoint URL from the Coinbase Bazaar catalog; get a live payment-challenge check, its current price quote, its 7/30/90-day check history and paying-wallet trend, and a plain verdict: ok, slow, unstable or failing. Uncharged when the URL is not in the catalog.

Full-history address-poisoning check before you send USDC on Base. Same risk/lookalike/seenBefore logic as /address/check, but funding history comes from ONE Blockscout index call (x402, up to the sender's 500 most recent Base USDC transfers; v2 page fallback) so coverage is usually the sender's full Base USDC history. Body {from, to}. Not charged if the index is down. Cheap partial/RPC tier: POST /address/check ($0.001).

OrionCMD Checks: HTTP security headers + redirect chain for a site. One HTTPS GET from Cloudflare's edge: redirect chain, final status, HSTS, CSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy, COOP, a simple A-F grade and plain-English findings.

Technical indicators for crypto (BTC-USD, ETH-USD) - RSI, MACD, SMA, EMA, Bollinger and trend signals

Bitcoin network status - block height and fee estimates in sat/vB from next block to 1 day

Wikipedia article summary - description, lead extract, URL, thumbnail and coordinates, in any language

Biggest 7-day DeFi TVL gainers and losers over $10M, filterable by chain and category

+3 more from Saylor Innovations DeFi Intellig

x402 test endpoint - pay once and get an itemized receipt with network, amount, payer and transaction

Chain Evidence Check — Judges whether an on-chain observation really proves a claim about a payment, a wallet or an RPC endpoint on an EVM chain, and answers as JSON with a binary verdict, the reason and the one check that would decide. Knows the readings that answer for the wrong thing - a null transaction receipt seconds after settlement, a block explorer that indexes a minute late and a balance view that lags its own transfer list, a public RPC endpoint that refuses receipts with an error or…

Transaction status and receipt by hash on Ethereum, Base, Arc or BNB Chain: success or revert, from, to, value, contract created, gas used, effective gas price, the fee paid, block, time and log count. Pass ?hash=&chain=. A hash that does not exist on that chain is refused before any charge.

Wallet balance on Ethereum, Base, Arc or BNB Chain: the native coin (ETH, BNB, or USDC on Arc), the chain USDC or up to 20 ERC20 tokens you list, the nonce and whether the address is a contract, read at one block. Pass ?address=&chain=&tokens=

Read-only contract call (eth_call) on Ethereum, Base, Arc or BNB Chain: pass ?to=&data= (hex calldata) and optional &from=, get the returned bytes or the revert reason, at a named block. Nothing is signed or sent.

Is this address a contract? On Ethereum, Base, Arc or BNB Chain: whether code is deployed, its size, the implementation behind an EIP-1967 or ZeppelinOS proxy, and an EIP-7702 delegation if the address is a wallet that delegates. Pass ?address=&chain=

Latest block and gas price on Ethereum, Base, Arc or BNB Chain: block number, its time and age in seconds, gas price and base fee in gwei, transaction count and chain id. Pass ?chain=

Payment verification on Ethereum, Base, Arc or BNB Chain: did this transaction really pay this address? Pass ?hash=&to= (and optionally &token=&min=) and get every ERC20 transfer that reached the address, the totals per token, any native value, whether a minimum was met, success or revert, and how many blocks deep it is. A hash not mined on that chain is refused before any charge.

Is this wallet on the OFAC sanctions list? Screens an address (EVM, Bitcoin, Tron, Solana) against the Treasury SDN list (about 1,060 digital currency addresses) and reads live USDC and USDT freeze status on chain. Sanctions check for a wallet address on any chain: is it on the OFAC SDN list (read from Treasury's official SDN.XML, about 1,060 digital currency addresses: Bitcoin, Tron, Ethereum, USDT, Solana and more), under which entry and programs, with the list's publication date.

NFT owner and metadata link for an ERC721 token on Ethereum, Base, Arc or BNB Chain: the current owner, the collection name and symbol, and the tokenURI (with an IPFS gateway link when it is ipfs://). A token that does not exist is refused before any charge.

Gas estimate before you send, on Ethereum, Base, Arc or BNB Chain: pass ?to=&from=&data=&value= and get the gas units, the gas price and the fee in the native coin, or the revert reason if the transaction would fail. Nothing is signed or sent.

Wallet nonce on Ethereum, Base, Arc or BNB Chain: the confirmed transaction count, the next nonce to use and how many transactions are pending. Pass ?address=&chain=

Multi-chain wallet portfolio: native balances and token holdings with USD values and totals per chain. EVM addresses are checked on Ethereum, Base, Arbitrum, Optimism, Polygon and BNB Chain (native + ~75 major tokens + up to 20 tokens you pass); Solana addresses list SOL and every SPL / Token-2022 holding. Prices come from on-chain DEX pools. Read-only public data.

+11 more from ISHOB

Pre-transaction counterparty check for an EVM wallet or contract: OFAC SDN screening, GoPlus malicious-address flags (phishing, drainers, laundering, mixers ...), and a live on-chain profile (EOA / contract / EIP-7702, nonce, balance, ENS, first transaction, contract verification). Returns risk_level, a plain recommendation (do_not_transact / review_before_transacting / no_red_flags_found), every reason with its source, and which sources were unavailable.

Block header lookup: number, hash, timestamp, miner, tx count, gas used/limit and base fee. Latest by default, or any block number, safe or finalized.

ENS resolve on Ethereum: a .eth name to its address (?name=vitalik.eth), or an address to its primary ENS name (?address=0x...), forward-verified so a reverse record pointing elsewhere is never returned as the name.

Crypto token price in USD, read on chain from Chainlink price feeds on Ethereum: pass ?symbols=ETH,BTC,SOL (up to 5) and get each price with its feed address, round id and how old the round is, so the number can be checked. Feeds are found by their public ENS names; a retired or unknown feed is refused before any charge.

Historical token price on Arc, batch: ?q=0xTOKEN@BLOCK,0xTOKEN@BLOCK (up to 50 pairs) returns each token's USD price AT each block, read from its deepest Uniswap v4 USDC pool with an eth_call at that block. For history values, P&L and tax exports. A pool that did not exist yet answers null with the reason. Malformed input, a future block, or not one pair priceable is refused before payment.

SHA-256 hash — compute a SHA-256 hex digest of a text string (sha256 hash / cryptographic hash).

Average consumer energy tariffs in the Netherlands per month from Statistics Netherlands (CBS table 85592NED): gas and electricity transport and supply tariffs, variable contract prices, dynamic electricity contracts, energy tax and tax reduction, including or excluding VAT. Use it for energy cost estimates and trend analysis. Averages, not prices of individual suppliers. CBS, CC BY 4.0.

Bulk wallet balances on Ethereum, Base, Arc or BNB Chain: up to 50 wallets in one call, the native coin or one ERC20 you name, all read at the same block through Multicall3. Pass ?addresses=0x..,0x..&token=&chain=. Cheaper than 50 single calls, and every row is from one consistent block.