# Services from api.vextorium.com on Zero > api.vextorium.com serves 109 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero. Canonical page: https://www.zero.xyz/host/api.vextorium.com Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.vextorium.com/health.json ## Services - [Vextorium Spanish Public Procurement Tenders Search](https://www.zero.xyz/c/vextorium-spanish-public-procurement-tenders-search-7aefb824/llms.txt): $0.01/call via x402. Search Spanish public procurement tenders from PLACSP open data by keyword, CPV code, province, contract type, and budget range - [EIP-712 Typed-Data Signature Explainer & Safety Checker](https://www.zero.xyz/c/eip-712-typed-data-signature-explainer-safety-checker-5428c02c/llms.txt): $0.005/call via x402. Decodes and audits EIP-712 typed-data signature requests (x402/EIP-3009 payment authorizations, EIP-2612 permits, Permit2, Seaport orders) before signing, flagging risks and returning the exact hash to verify. - [IBAN Validation with SEPA Check and Spanish CCC Verification](https://www.zero.xyz/c/iban-validation-with-sepa-check-and-spanish-ccc-verification-6647160d/llms.txt): $0.003/call via x402. Validates an IBAN number using ISO 13616 mod-97 algorithm, per-country length rules, SEPA membership, and for Spanish IBANs also national CCC check digits and bank name lookup — computed locally without storing the IBAN. - [Crypto Hacks & Exploits Database](https://www.zero.xyz/c/crypto-hacks-exploits-database-2243e75c/llms.txt): $0.005/call via x402. Returns a filterable database of crypto hacks and exploits including date, amount stolen, technique, classification, chains, and whether a bridge or CEX was involved — sourced live from DefiLlama. - [World Stock Exchanges Clock](https://www.zero.xyz/c/world-stock-exchanges-clock-1eac15f9/llms.txt): $0.003/call via x402. Returns the current open/closed status, local time, today's session hours, and next open time for up to 12 major global stock exchanges. - [Vextorium Aave v3 DeFi Liquidations](https://www.zero.xyz/c/vextorium-aave-v3-defi-liquidations-05cffa94/llms.txt): $0.01/call via x402. Returns on-chain Aave v3 liquidation data across Base, Ethereum, Arbitrum, Optimism, and Polygon for a given time window, including total USD liquidated, event counts, breakdowns by network/collateral/debt asset, and recent liquidation events with explorer links. - [DeFi Protocol Comparator via DefiLlama](https://www.zero.xyz/c/defi-protocol-comparator-via-defillama-3b4d2293/llms.txt): $0.006/call via x402. Compares two DeFi protocols side by side, returning TVL, category, chain count, 7-day TVL change, native token, and audit count for each, plus which protocol has higher TVL — all sourced live from DefiLlama. - [US Government Crypto Regulatory Documents Feed](https://www.zero.xyz/c/us-government-crypto-regulatory-documents-feed-8c293234/llms.txt): $0.018/call via x402. Fetches and filters the latest US government regulatory documents (SEC, CFTC, White House) relevant to crypto and markets, with optional AI-generated summaries in English or Spanish. - [Solana Address Recent Activity Lookup](https://www.zero.xyz/c/solana-address-recent-activity-lookup-290d2ac8/llms.txt): $0.004/call via x402. Returns the latest transaction signatures (up to 25) for a Solana address, including slot, timestamp, success/failure status, and memo. - [Solana Wallet Reverse Domain Lookup (Primary .sol Domain)](https://www.zero.xyz/c/solana-wallet-reverse-domain-lookup-primary-sol-domain-43cb759c/llms.txt): $0.003/call via x402. Returns the primary (favourite) .sol domain name associated with a Solana wallet address, verified on-chain to confirm the wallet still owns it. - [Solana Priority Fee Estimator](https://www.zero.xyz/c/solana-priority-fee-estimator-f8b7367f/llms.txt): $0.003/call via x402. Returns recent per-slot Solana priority fee statistics (min, median, p75, p90, max in micro-lamports per CU) and estimated total cost in SOL for a 200k-CU transaction, optionally filtered by specific accounts. - [Vextorium BOE Disposición Lookup](https://www.zero.xyz/c/vextorium-boe-disposici-n-lookup-2a753281/llms.txt): $0.012/call via x402. Fetches official metadata and an AI-generated Spanish summary for any Spanish Official State Gazette (BOE) item by its identifier - [Vextorium Multi-Chain Wallet Balance Checker](https://www.zero.xyz/c/vextorium-multi-chain-wallet-balance-checker-f2dcca97/llms.txt): $0.008/call via x402. Returns native coin and USDC balances per chain plus total USD value for a single wallet address across Base, Ethereum, Arbitrum, Optimism, and Polygon. - [Vextorium US SEC Regulatory Filings](https://www.zero.xyz/c/vextorium-us-sec-regulatory-filings-bec6bc38/llms.txt): $0.004/call via x402. Retrieves the latest SEC regulatory filings for a US-listed company by ticker, including 8-K, 10-Q, 10-K, Form 4, 13D/G and more, with dates, 8-K item codes, and direct document links. - [Vextorium US Company Fundamentals (SEC XBRL)](https://www.zero.xyz/c/vextorium-us-company-fundamentals-sec-xbrl-57eeba39/llms.txt): $0.006/call via x402. Returns multi-period financial fundamentals (revenue, net income, EPS, cash flow, assets, liabilities, equity, dividends, shares outstanding) for any US-listed company from public SEC XBRL filings. - [Vextorium SEC Filing AI Summary](https://www.zero.xyz/c/vextorium-sec-filing-ai-summary-f5040dd2/llms.txt): $0.015/call via x402. Generates an AI-powered summary of a US-listed company's latest SEC filing (default 8-K), extracting headline, key bullet points, literal key figures, and tone in any chosen language using a local Qwen2.5-7B model. - [Vextorium EVM Developer Utilities](https://www.zero.xyz/c/vextorium-evm-developer-utilities-3cefa403/llms.txt): $0.003/call via x402. Performs EVM developer operations: keccak256 hashing, function selector derivation from ABI signature, EIP-55 checksum address formatting, and wei/gwei/ether unit conversion. - [US Stock Market Hours & Holiday Clock (NYSE/Nasdaq)](https://www.zero.xyz/c/us-stock-market-hours-holiday-clock-nyse-nasdaq-93952874/llms.txt): $0.003/call via x402. Returns the current trading status of US stock markets (NYSE/Nasdaq) — open, closed, pre-market, or after-hours — along with holiday info, early-close schedules, and next open/close times, for a given or current moment. - [ECB Euro Reference Exchange Rates & Currency Conversion](https://www.zero.xyz/c/ecb-euro-reference-exchange-rates-currency-conversion-0a5fefcb/llms.txt): $0.003/call via x402. Returns the latest European Central Bank official euro reference rates for ~30 currencies, and optionally converts an amount between any two of those currencies. - [Vextorium Stablecoin Detail](https://www.zero.xyz/c/vextorium-stablecoin-detail-1d460f63/llms.txt): $0.005/call via x402. Returns detailed information about a specific stablecoin: pegging mechanism, current USD price, on-peg status, total circulating supply, and per-chain supply breakdown — live from DefiLlama. - [Vextorium Market Sentiment Analyzer](https://www.zero.xyz/c/vextorium-market-sentiment-analyzer-4fd92fb3/llms.txt): $0.006/call via x402. Analyzes any text (news, tweets, posts, any language) for financial market sentiment using a local Qwen2.5-7B AI model, returning bullish/bearish/neutral verdict, score from -1 to 1, confidence, mentioned assets, and a short reason. - [ERC-20 Admin Control Risk Checker](https://www.zero.xyz/c/erc-20-admin-control-risk-checker-5d0a20b3/llms.txt): $0.008/call via x402. Analyzes an ERC-20 token contract to detect admin privilege functions such as owner control, upgradeable proxy, mint, pause, blacklist, and fee-setting capabilities, returning a structured risk assessment of issuer control level. - [Vextorium Solana Wallet Balance Lookup](https://www.zero.xyz/c/vextorium-solana-wallet-balance-lookup-cefcc166/llms.txt): $0.004/call via x402. Returns SOL balance plus all SPL and Token-2022 token holdings (mint, amount, decimals) for a given Solana address, with USD values for USDC and USDT. - [Spanish Tax ID Validator (DNI/NIE/CIF)](https://www.zero.xyz/c/spanish-tax-id-validator-dni-nie-cif-2a834a39/llms.txt): $0.003/call via x402. Validates Spanish tax identifiers — DNI/NIF, NIE, and company CIF — by computing and verifying the check digit locally without storing the ID. - [x402 Endpoint Inspector (Vextorium)](https://www.zero.xyz/c/x402-endpoint-inspector-vextorium-72445903/llms.txt): $0.004/call via x402. Inspects any x402 payment-gated endpoint before paying — returning price, asset safety, payee address, contract status, authorization timeout, Bazaar metadata, and risk alerts with a verdict. - [Blockchain Chain ID Reference Lookup](https://www.zero.xyz/c/blockchain-chain-id-reference-lookup-f7666765/llms.txt): $0.003/call via x402. Returns reference metadata for a blockchain given its chainId: name, native gas token, block explorers, public RPC count, and website. - [Vextorium Tokenized Stock Lookup (xStocks / Solana)](https://www.zero.xyz/c/vextorium-tokenized-stock-lookup-xstocks-solana-05056c12/llms.txt): $0.004/call via x402. Returns verified on-chain mint addresses, supply, issuer authority, and metadata for official tokenized US stocks or ETFs on Solana (xStocks by Backed and Ondo Global Markets). - [DEX Volume Rankings by Chain](https://www.zero.xyz/c/dex-volume-rankings-by-chain-da2f11a9/llms.txt): $0.004/call via x402. Returns decentralized exchanges ranked by 24h and 7d traded volume, with market share and 7d change, optionally filtered by blockchain, sourced live from DefiLlama. - [Vextorium DeFi Liquidity Pool Screener](https://www.zero.xyz/c/vextorium-defi-liquidity-pool-screener-4664d4b5/llms.txt): $0.012/call via x402. Searches and ranks DeFi liquidity pools across ~17,000 pools on every major chain and protocol, filtered by token, chain, protocol, TVL, APY range, and risk preference, sourced from DefiLlama. - [Vextorium Structured Data Extraction](https://www.zero.xyz/c/vextorium-structured-data-extraction-7faa3720/llms.txt): $0.008/call via x402. Extracts named fields from free-form text using local AI, returning a JSON object with the requested field values (null when absent). - [DeFi Chain TVL Rankings](https://www.zero.xyz/c/defi-chain-tvl-rankings-9e908681/llms.txt): $0.004/call via x402. Returns all blockchains ranked by DeFi total value locked (TVL), including USD value, share percentage, and native gas token for each chain, sourced live from DefiLlama. - [Ethereum Function Selector & Event Topic Decoder](https://www.zero.xyz/c/ethereum-function-selector-event-topic-decoder-b3899409/llms.txt): $0.003/call via x402. Translates a 4-byte function selector or 32-byte event topic hash into its human-readable Solidity signature by looking it up in the 4byte.directory database. - [Vextorium Uniswap v3 Pool State on Base](https://www.zero.xyz/c/vextorium-uniswap-v3-pool-state-on-base-aa150178/llms.txt): $0.006/call via x402. Returns Uniswap v3 pool state on Base for a token pair: pool address per fee tier, spot price, current tick, active liquidity, and token reserves. - [Vextorium Crypto Price (On-Chain)](https://www.zero.xyz/c/vextorium-crypto-price-on-chain-c8cd8a95/llms.txt): $0.01/call via x402. Returns the current price of a cryptocurrency or Base token in USD and EUR, sourced exclusively from on-chain data (Chainlink oracles or Uniswap v3) plus ECB FX rate. - [Vextorium Wallet Balance Checker (Base/Ethereum)](https://www.zero.xyz/c/vextorium-wallet-balance-checker-base-ethereum-91af2851/llms.txt): $0.005/call via x402. Returns native ETH plus major token balances (WETH, USDC, USDT, DAI, cbBTC/WBTC, optional ERC-20) for a wallet address on Base or Ethereum, with approximate USD values from Chainlink oracles. - [Solana Account Inspector](https://www.zero.xyz/c/solana-account-inspector-cb437338/llms.txt): $0.003/call via x402. Inspects a Solana address and returns whether it exists, its account type, SOL balance, owner program, and data size. - [Solana SPL Token Profile & Risk Signals](https://www.zero.xyz/c/solana-spl-token-profile-risk-signals-9569b0f7/llms.txt): $0.005/call via x402. Returns on-chain profile data and risk signals for a Solana SPL or Token-2022 token by mint address, including supply, decimals, authorities, extensions, and top-5 holder concentration. - [Solana Transaction Status by Signature](https://www.zero.xyz/c/solana-transaction-status-by-signature-6de0dccc/llms.txt): $0.003/call via x402. Returns the confirmation status, slot, timestamp, fee, signers, programs invoked, and token balance changes for a Solana transaction given its base58 signature. - [Vextorium Stablecoin Peg Health Monitor](https://www.zero.xyz/c/vextorium-stablecoin-peg-health-monitor-ae798f5d/llms.txt): $0.004/call via x402. Returns the current peg health of a stablecoin (USDT, USDC, DAI, USDe, etc.) including price, deviation from $1, on-peg status, circulating supply, and pegging mechanism via DefiLlama. - [Solana Token Swap Quote via Jupiter Aggregator](https://www.zero.xyz/c/solana-token-swap-quote-via-jupiter-aggregator-9cd63f44/llms.txt): $0.007/call via x402. Returns the best route and price to swap one Solana token for another, including amount received, price impact, and DEX routing, powered by Jupiter aggregator. - [Vextorium Tokenized Stock DeFi Yield Pools](https://www.zero.xyz/c/vextorium-tokenized-stock-defi-yield-pools-3836dbd4/llms.txt): $0.006/call via x402. Returns the best DeFi yield pools for verified tokenized stocks (xStocks/Backed and Ondo), with APY, TVL, chain, protocol, and pair — filterable by stock ticker. - [BIC/SWIFT Code Validator and Parser](https://www.zero.xyz/c/bic-swift-code-validator-and-parser-b726e692/llms.txt): $0.003/call via x402. Validates a BIC/SWIFT code and parses it into its constituent parts: bank code, country, location, branch, and test-code flag. - [Vextorium EVM Address Inspector](https://www.zero.xyz/c/vextorium-evm-address-inspector-3a495201/llms.txt): $0.004/call via x402. Inspects any EVM address to determine if it is a wallet (EOA), EIP-7702 delegated wallet, or smart contract, returning bytecode size, token standard support, proxy details, nonce, and native balance. - [Vextorium Web Markdown Extractor](https://www.zero.xyz/c/vextorium-web-markdown-extractor-cc4038d0/llms.txt): $0.0045/call via x402. Fetches any public web page or PDF by URL and returns its main content as clean, LLM-ready markdown plus metadata (title, description, author, date, language, canonical URL), with boilerplate removed. - [Aave v3 Cross-Chain APY Comparator](https://www.zero.xyz/c/aave-v3-cross-chain-apy-comparator-3b1a2240/llms.txt): $0.006/call via x402. Compares Aave v3 deposit and borrow APYs for a given token across all supported chains (Base, Ethereum, Arbitrum, Optimism, Polygon), returning the best chain and APY breakdown. - [V … (truncated at 16384 bytes)