Call when an agent needs ECB daily FX rates, an as_of date, and an optional conversion. Send base (default EUR), optional quote such as USD, and optional amount. Returns rates and converted. Source is the Frankfurter ECB feed. Send JSON {"base":"EUR","quote":"USD","amount":10}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/fx-rates first.

Call when an agent needs broken JSON repaired deterministically (markdown fences, smart quotes, trailing commas, single quotes, unquoted keys), plus the transforms applied. Use it on model or scraped text that is almost JSON. No LLM. Send JSON {"text":"```json\n{\"a\":1,}\n```"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/json-repair first.

Call when an agent needs an RDAP domain record (status, nameservers, registrar, events) for a public hostname. Use it when WHOIS port 43 is unavailable. Private names are blocked. Send JSON {"hostname":"example.com"}. Exact $0.005 USDC on Base. Try unpaid POST /v1/sandbox/rdap first.

Call when an agent needs whether a YYYY-MM-DD date is a public holiday, plus the English name. Send date and country (ISO 3166-1 alpha-2). Covers US, CA, GB, IE, and much of Europe plus AU and NZ. Unknown countries error. No network. Send JSON {"date":"2026-12-25","country":"US"}. Exact $0.003 USDC on Base. Try unpaid POST /v1/sandbox/holiday-check first.

Call when an agent needs a Base transaction receipt with decoded ERC-20 Transfer and Approval events, raw and human amounts when decimals are readable. A missing hash errors. Read-only. No spend. Send JSON {"hash":"0xabababababababababababababababababababababababababababababababab"}. Exact $0.005 USDC on Base. Try unpaid POST /v1/sandbox/base-tx-logs first.

Call when an agent needs public DNS A, AAAA, MX, TXT, and CNAME records for a hostname. Use it to see where a domain points. Optional types limits the query. Private targets are blocked. Send JSON {"hostname":"example.com","types":["A","AAAA","MX","TXT","CNAME"]}. Exact $0.003 USDC on Base. Try unpaid POST /v1/sandbox/dns-lookup first.

Call when an agent needs a structured brand or product mention brief from public web sources: theme clusters, sentiment, and short licensed samples. Use it to see how a name is discussed before drafting a reply. Send JSON {"query":"acme widgets","lookback_days":30,"sources":["web","reviews"],"limit":40,"lang":"en"}. Exact $0.02 USDC on Base. Try unpaid POST /v1/sandbox/mentions first.

Call when an agent needs the main content of a public http(s) URL as markdown, plus title and final_url. Use it for docs, articles, and product pages. SSRF-safe fetch. Send JSON {"url":"https://example.com/"}. Exact $0.005 USDC on Base. Try unpaid POST /v1/sandbox/url-to-md first.

Call when an agent needs a cheap confirmation that an x402 wallet payment can settle. Returns server UTC time, the verified payer, and an HMAC-free receipt. Send an optional note, or an empty object. Send JSON {"note":"wallet"}. Exact $0.001 USDC on Base. Try unpaid POST /v1/sandbox/x402-ping first.

Call when an agent needs an Ethereum mainnet ENS forward (.eth to address) or reverse lookup. Send name or address, not both. No CCIP-read and no offchain gateway. Unresolved is resolved false. Send JSON {"name":"vitalik.eth"}. Exact $0.004 USDC on Base. Try unpaid POST /v1/sandbox/ens-resolve first.

Call when an agent needs whether a Base address is an upgradeable proxy, plus implementation and admin. Detects EIP-1967, UUPS, Transparent, and legacy OpenZeppelin slots, including USDC. Read-only. No spend. Send JSON {"address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"}. Exact $0.004 USDC on Base. Try unpaid POST /v1/sandbox/base-proxy first.

Call when an agent needs the next pending nonce and confirmed transaction count for one Base address. Send address (EIP-55 or one case). Read-only eth_getTransactionCount on eip155:8453. No spend. Send JSON {"address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/base-nonce first.

Call when an agent needs favicon and apple-touch icons extracted from a public page or HTML (SSRF-safe). Send JSON {"html":"<link rel=\"icon\" href=\"https://example.com/favicon.ico\" sizes=\"32x32\">"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/favicon-meta first.

Call when an agent needs a structured SEO and technical audit of a public URL: HTTPS, status, title, meta description, robots, canonical, JSON-LD, H1 count, load hints, score 0–100, and issues[]. Use it before citing or submitting a page. SSRF-safe. Send JSON {"url":"https://example.com/"}. Exact $0.01 USDC on Base. Try unpaid POST /v1/sandbox/page-audit first.

Call when an agent needs public emails already written on a page URL or in HTML (de-duped, cap 100). Use it only to read addresses that are present. It does not guess or enrich. Provide url or html. Send JSON {"html":"Contact sales@example.com for a demo."}. Exact $0.003 USDC on Base. Try unpaid POST /v1/sandbox/extract-emails first.

Call when an agent needs clean markdown from HTML the agent already holds. No network. Optional url is only a base for relative links. Use it after a fetch when you do not want a second download. Send JSON {"html":"<h1>Hello</h1><p>World</p>","url":"https://example.com/page"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/html-to-md first.

Call when an agent needs a Base block header and transaction hashes by number or tag latest, finalized, or safe. The hash list is capped at 100. Read-only eth_getBlockByNumber. No spend. Send JSON {"block":"latest"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/base-block first.

Call when an agent needs ERC-20 metadata, proxy and owner flags, a 30-day recently_deployed heuristic, and an optional holder balance for one Base token. Send token and optional holder. No LLM. Read-only. Send JSON {"token":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","holder":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"}. Exact $0.01 USDC on Base. Try unpaid POST /v1/sandbox/base-token-facts first.

Call when an agent needs is_contract, bytecode size and hash, EIP-1967 and legacy OpenZeppelin proxy slots, and owner() for one Ethereum mainnet address. An EOA is is_contract false. Read-only. No spend. Send JSON {"address":"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"}. Exact $0.003 USDC on Base. Try unpaid POST /v1/sandbox/eth-contract-info first.

Call when an agent needs status, block, gas used, and decoded ERC-20 Transfer logs for one Ethereum mainnet transaction hash. Status is success, reverted, or pending. A missing hash errors. Read-only. No spend. Send JSON {"hash":"0xabababababababababababababababababababababababababababababababab"}. Exact $0.003 USDC on Base. Try unpaid POST /v1/sandbox/eth-tx first.