basedue

Public holiday and business-day calendar for US and UK: is a date a business day, add N business days, count business days between dates (net of holidays), and list a year's holidays. $0.01 per call in USDC on Base via x402.

Base token due diligence over x402. /report bundles due diligence, cross-venue reference price and position exit cost in ONE $0.01 call. /price now takes up to 10 tokens per $0.01 call for bulk screening. Free /sample on every endpoint.

Base agent toolbox. /preflight simulates a tx (revert reason, gas, EIP-1559 fees in ETH and USD) before you sign. /verify reads a receipt and proves a USDC transfer settled: confirmations, amount, sender, recipient.

Trust check for any domain in one call: DNS records, email auth (SPF/DMARC/DKIM), WHOIS registrar and age, live HTTP status, TLS certificate issuer/expiry and HSTS. Free /preflight returns the real records as a sample; paid /dns full report, /batch up to 10 domains.

Perpetual-futures funding rates and annualized carry for BTC, ETH, SOL and more, from exchange public market-data APIs, in one call. Free /preflight sample.

Perpetual funding rates across 7 venues (Binance, Bybit, OKX, Bitget, Hyperliquid, dYdX, Deribit), normalized to 8h and annualized. Free /sample.

Search plus page-to-markdown in one $0.01 call: ranked results from Wikipedia, Hacker News, GitHub and a web engine, with clean readable article text. Pass q= to search, or url= to extract any single page. Free /demo and /quickstart.

Extract clean readable text or markdown from any public web page: title, language, word/paragraph counts and the full article body. Free /preview sample first.

Preflight and monitoring for x402/HTTP APIs: free structural audit of any x402 402 challenge (accepts[], scheme, network, asset, amount, payTo), plus paid live probe (/check), headers, TLS, uptime history and a public monitored board.

Check whether any x402 endpoint is live and correctly priced before you pay it: fetches the target URL, decodes its HTTP 402 payment requirements and returns a verdict with the accepted price, network, asset and pay-to address.

x402 market intelligence over 41k live listings. Free /search, /market, /compare, /gaps, /guide. Paid /verdict ($0.01): vet one endpoint, or send {"resources":[...]} to batch-vet up to 25 worst-first with live diagnosis, demand, price percentile and alternatives.

Compare two OpenAPI 3 JSON specs and get a precise breaking-change report: removed paths, renamed parameters, new required fields, type changes. $0.02 via x402.

Token due-diligence report for any Base/ETH/BSC/Arbitrum token: live price and liquidity, contract security (honeypot, mint/freeze authority, tax, holder concentration), on-chain supply checks and a risk verdict. Free preview; full report $0.01.

Convert public web pages into clean markdown plus metadata, headings and link inventory. One URL per call ($0.01), or POST up to 10 URLs at once in a single call for batch ingestion.

Deterministic mid-task utilities for AI agents: unit + currency conversion by ratio, timezone/date maths, cron expansion, entity extraction, format + JSON Schema validation, and CAIP-2 blockchain resolution (chain id <-> name <-> eip155:8453). Exact answers, no LLM, fast.

Base wallet activity profile + heuristic risk score + exact-address OFAC SDN sanctions screen (US Treasury list, public data). /profile and /sanctions. Free /sample.

Public holiday and business-day calendar for US and UK: is a date a business day, add N business days, count business days between dates (net of holidays), and list a year's holidays. $0.01 per call in USDC on Base via x402.

Read-only Base and Ethereum chain data over x402: gas, blocks, balances, token metadata, tx status, nonces, and token safety verdicts scored 0-100. Batch up to 25 tokens. Free /scan and /t/<address> verdict pages.

Sanctions screening against US OFAC, UK OFSI and EU lists with real matching on all three. Screen a name, a wallet address, a batch, or your own watchlist. Non-Latin names are transliterated; unscreenable names return 400, never a false clear.

Monitor public web pages for changes. One call checks many URLs; returns changed=true/false plus added/removed lines, so alert agents pay per poll instead of per page.

One joined company dossier from public sources: SEC EDGAR identity, CIK, SIC industry, incorporation state, recent filings, plus RDAP domain facts and an OFAC/UK/EU sanctions screen of the name. No personal data…[44 more chars, already applied]

One call joins public SEC EDGAR data into an agent-ready brief: company profile, annual financial series (revenue, net income, assets, cash, EPS) with YoY growth and margins, recent filings, and risk-factor excerpts. Saves an agent five separate lookups and all the parsing.

Public SEC EDGAR data for agents: company profile plus recent filings, XBRL financial history for any tag (revenue, net income, assets), and full-text search across EDGAR filings si…[29 more chars, already applied]

News and feed digest from public RSS/Atom/JSON feeds: merge up to 12 sources, dedupe, filter by keyword and recency, and get one ranked list of items with title, link, time and summary. Includes 22 curated working feeds.

One call, full picture of a web page: clean markdown, metadata (title, description, canonical, OpenGraph, favicon), heading outline, link census with resolved links, link health checks and a change…[11 more chars, already applied]

Fetch a public web page and return clean structured content for agents: title and description, heading outline, main article text (boilerplate removed), markdown, links, images, tables and JSON-LD. No LLM, no API key, ~1s.

Sanctions screening against US OFAC, UK OFSI and EU lists with real matching on all three. Screen a name, a wallet address, a batch, or your own watchlist. Non-Latin names are transliterated; unscreenable names return 400, never a false clear.