Explore APIs

Check one email address or domain. Report common address syntax, MX or null MX and A/AAAA fallback, SPF, exact-domain DMARC and optional caller-supplied DKIM selector records, and a small known disposable-domain list. DNS failures remain unknown. Does not verify a mailbox or predict delivery.

Current VAT rates for supported European countries (EU-27 + UK, CH, NO...). Standard, reduced and super-reduced rates, provided through the third-party vatnode dataset; verify applicability for your transaction. Use when pricing, invoicing or checking tax for a customer in Europe and you need that country's VAT rate.

Real-time forex exchange rates for 170+ currencies with USD base. Daily updates from ExchangeRate-API open data. AI agent international payment calculator, cross-border FX, finance dashboard, currency converter API, pay-per-call USDC.

Latest SEC EDGAR filings for any US-listed company by stock ticker or CIK: 10-K annual reports, 10-Q quarterly reports, and 8-K material events. Resolves ticker to CIK via SEC's official index and returns the parsed filing (company, form type, dated items). Sourced live from data.sec.gov.

Real-time web search for AI agents — search the web and get ranked SERP-style results as clean JSON: title, URL, snippet, relevance score, optional LLM-generated answer. Find up-to-date information online — latest news, current events, finance. Date, domain and exact-phrase filters.

Official USD/BRL and EUR/BRL exchange rates (PTAX, Central Bank of Brazil).

Queries foreign exchange currency pairings from the free Frankfurter database.

Drop-in Exa-compatible contents: send urls (or ids) and text / highlights options exactly as for Exa /contents and get results with id, url, title, author, publishedDate, text and highlights plus per-URL statuses, as clean markdown with a prompt-injection verdict. Up to 10 URLs for $0.004. Not affiliated with Exa.

Full-text search across every aggregated data source in one call: news, SEC filings, court opinions, academic papers, government records, and developer discussions. One query surfaces everything concordant across independently-sourced, citable results -- not a single-source wrapper. Optional source/category/since filters.

Same KOL confluence feed as kol_signals_live with every row at least 45 minutes old — the evaluation tier

Parsed House/Senate PTR trades: member, ticker, type, amounts, filing lag (last 1000)

falcon.sol: Use this when you need to size debt or compare credit risk across US public companies. Send up to 12 tickers; get gross and net leverage, interest coverage, FCF/debt, debt capacity under leverage, coverage and DSCR limits, capacity at peer-median leverage, 3 structures with indicative ratings, and a short credit memo. Every assumption is returned and overridable. $0.24 USDC.

Give this API a loan amount, an interest rate, and a repayment term, and it returns the exact monthly payment plus a full month-by-month schedule: interest paid, principal repaid, and balance remaining for every payment. Ask what an extra $300 a month, or a $10,000 lump sum in month 24, would do and it reports the months and interest saved. Every figure uses banker's rounding at pinned precision,

Get current exchange rate between two currencies using ECB data. Supports all major currencies. Returns rate, inverse rate, and date.

US overnight interest rates — latest SOFR and effective federal funds rate (EFFR), transaction volumes and policy target bounds. Compare secured and unsecured dollar funding costs and track monetary policy. x402Atlas is not affiliated with the New York Fed. The New York Fed does not sanction, endorse, or recommend any products or services offered by x402Atlas.

US Treasury interest rates — latest monthly average rates on outstanding government debt, including Treasury bills, notes, bonds, TIPS, floating-rate notes and savings securities. Track federal borrowing costs and compare rates across security classes.

SEC company financials by ticker — normalized annual and quarterly revenue, income, balance-sheet, cash-flow and EPS facts.

Compare Canadian interest rates and government bond yields using the latest available Bank of Canada policy rate and six benchmark maturities. Track monetary policy, benchmark borrowing costs and compare the yield curve. Original data is available free at bankofcanada.ca.

How to make money with AI — one tailored business-in-a-box. Give a goal, budget and interests; get a specific business to start now: the exact real-time PulseNetwork API engine to build it on, suggested pricing, unit economics, monetization paths, and a fork-and-ship starter kit. Turns 'find me a way to earn / passive income / start a business' into a concrete plan. For agents tasked with making m

US Treasury interest rates — latest monthly average rates on outstanding government debt, including Treasury bills, notes, bonds, TIPS, floating-rate notes and savings securities. Track federal borrowing costs and compare rates across security classes.

Before any buy: why a name is not a candidate today. GET /api/board/whynot?sym=NVDA returns the plain reason on the live board: the gate for its book and sector, its entry window (READY, SETUP, WAIT, CHASE, FALLING, BASING) and earnings inside five trading days, or the state that makes it a candidate. One symbol per read; an unknown symbol fails free with a 400. ~5-min refresh. States and reasons

Official ECB euro reference FX rates (~30 currencies, daily) rebased to any supported base currency.