Every agent-payable API.

Call when an agent needs an HMAC-sha3-256 of text with a caller-supplied key, encoded as base64. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-256-base64 first.

Call when an agent needs an HMAC-sha3-256 of text with a caller-supplied key, encoded as base64url. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-256-base64url first.

Call when an agent needs an HMAC-sha3-256 of text with a caller-supplied key, encoded as hex. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-256-hex first.

Call when an agent needs an HMAC-sha3-384 of text with a caller-supplied key, encoded as base64. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-384-base64 first.

Call when an agent needs an HMAC-sha3-384 of text with a caller-supplied key, encoded as base64url. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-384-base64url first.

Call when an agent needs an HMAC-sha3-384 of text with a caller-supplied key, encoded as hex. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-384-hex first.

Call when an agent needs an HMAC-sha3-512 of text with a caller-supplied key, encoded as base64. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-512-base64 first.

Call when an agent needs an HMAC-sha3-512 of text with a caller-supplied key, encoded as base64url. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-512-base64url first.

Call when an agent needs an HMAC-sha3-512 of text with a caller-supplied key, encoded as hex. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-512-hex first.

Call when an agent needs an HMAC-sha384 of text with a caller-supplied key, encoded as base64. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha384-base64 first.

Call when an agent needs an HMAC-sha384 of text with a caller-supplied key, encoded as base64url. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha384-base64url first.

Call when an agent needs an HMAC-sha384 of text with a caller-supplied key, encoded as hex. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha384-hex first.

Call when an agent needs an HMAC-sha512 of text with a caller-supplied key, encoded as base64. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha512-base64 first.

Call when an agent needs an HMAC-sha512 of text with a caller-supplied key, encoded as base64url. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha512-base64url first.

Call when an agent needs an HMAC-sha512 of text with a caller-supplied key, encoded as hex. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha512-hex first.

Holder Distribution: node-operated on-chain service Executed deterministically by the AmanChain node against live consensus state (real blocks, pools, balances) — paid per call via x402, settled in USDC on Base. Input: JSON body {"serviceId":"aman-holder-stats","request":"<input>"}. No account, no API key.

Latest 13F filings (what billionaires/hedge funds are holding) via SEC EDGAR.

Site-wide tallies: published episodes, shows, checked claims and cited studies.

Published fact-checked episodes, newest first, with optional filters by category slug, show id or speaker slug. Paged.

List public holidays for country= + year= from Nager.Date (~110 countries). Marks national vs regional entries. Same source business-days uses — for agents that need the raw calendar.

Next official public holiday after a date for a supported country or regional subdivision.

Business-day count excluding weekends and full-day Public or Bank holidays; Optional and HalfDay observances remain business days.

Official public holidays by country and year, with regional subdivisions, localized names and normalized dates.

Holiday date check by country or subdivision — determine whether one ISO date is an official public holiday.

Add business days while skipping weekends and full-day Public or Bank holidays; Optional and HalfDay observances are retained.

Returns official public holidays for a given country and year.

Public and bank holidays for 200+ countries and their regions (states, cantons) for any year, with local names. Optionally check whether a given date is a holiday. Params: country (ISO 3166-1 alpha-2, required, e.g. DE, US, CH, JP), region (e.g. BY, CA, ZH), year (default current), date (YYYY-MM-DD to check), language (e.g. en), include_observances (default false).

Returns the public holidays (bank holidays, Feiertage) of a German federal state for one year, each with date, weekday and the citation in that state's own act. Public holidays in Germany are state law; only 3 October is federal. Regionally limited ones (Assumption Day in Bavaria, Corpus Christi in Saxony and Thuringia) are flagged and do NOT apply statewide. All 16 state lists read against the statute, each with source and check date.

CMS Care Compare quality record by CCN for a home health. Answers: what are the quality ratings and performance measures for this facility? Source: CMS Care Compare.

Is this token a honeypot? Check if a token can be bought but not sold. Fast honeypot detection for any ERC-20 token on Ethereum, Base, Arbitrum, Optimism, Polygon, BSC, Avalanche.

Honeypot check for any token ($0.02): can it be sold after you buy? Simulated sell and buy on chain, owner and proxy, mint, blacklist, pause and fee functions, liquidity, LP burn and buy tax on Base, Ethereum, Arbitrum, Optimism and Polygon; mint and freeze authority on Solana. Verdict and 0-100 safety score.

PDF to text: public PDF URL → clean text per page plus title/author metadata (pdf.js text layer, no OCR); SSRF-safe download up to 10MB, first 50 pages, 100K chars; unbilled on non-PDF, encrypted or image-only files; $0.02

Web search → top 1-5 result pages fetched as clean markdown/text with URL, title, rank and per-source status (Google results via Serper); SSRF-safe fetch; partial results on page errors; $0.03

Render a public URL in headless Chromium → PNG/JPEG screenshot (base64 JSON) with final URL, page status and title; viewport/fullPage/format options; SSRF-safe on every sub-request; $0.02

Audit any public x402 endpoint: one unpaid probe → 402 validity, x402 version, decoded price/network/asset, payTo type (EOA vs contract), discovery-metadata hints, pass/warn/fail checks; SSRF-safe; never pays

Absurd agent-themed daily horoscope full of API calls and cosmic latency.

The sky right now, computed server-side, read for the caller. Pay $0.50 USDC per run; the response carries a run id and poll URL, the report lands in 3–10 minutes. No account needed — the paying wallet becomes the account and an API key is returned once.

Use when you have a company domain and need to know what the company is before spending more. Returns the company name and site title, domain age, registrar, mail provider, DNS provider, DMARC and HTTPS status, and a count of the third-party vendors detected. One call, no signup, no API key. The cheapest way to qualify a domain before buying a fuller record.

CMS Care Compare quality record by CCN for a hospice. Answers: what are the quality ratings and performance measures for this facility? Source: CMS Care Compare.

Hospital scorecard for any U.S. Medicare hospital from the Centers for Medicare & Medicaid Services (CMS, the U.S. government agency): CMS overall star rating, type, ownership, emergency services, and how it compares with the national average on mortality, safety and readmissions (measures better, same, worse), plus its rank and percentile among rated hospitals in its state. Look up by CMS facility ID or name plus state. Not medical advice.

CMS Care Compare quality record by CCN for a hospitals. Answers: what are the quality ratings and performance measures for this facility? Source: CMS Care Compare.

Hospital cost-report record by CMS Certification Number (CCN). Answers: what are the financial and operational metrics for this hospital across fiscal years? Includes identity, beds, discharges, revenues, net income, operating margin.

Korean listed companies with the sharpest news surge versus their own history over the last N days (default 7), each with article count, burst ratio, net sentiment, representative headlines and same-period DART filings, plus a distress flag for halts or designation risk. by=burst (default), volume, or positive.

Investment themes and keywords surging in Korean financial news over the last N days (default 30) versus their history, filtered to investable market and industry context (politics and celebrity noise removed), each with burst ratio, related listed companies and headlines.

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Hourly ETH in/out and net flow through the STANDARD/ETH pool. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

Returns comprehensive hourly precipitation data for the given time range and location(s). Each hour includes precipitation amount, type (rain/snow/mixed), probability (for forecasts), and data source. Seamlessly combines historical observations with forecast data depending on the requested time range. | ERROR: Unable to calculate price.

Hourly near-surface air temperature in Celsius (°C) | ERROR: Unable to calculate price.

Housing market context for a county and ZIP: median listing price, active listings, and days on market with year-over-year change (Realtor.com series on FRED, monthly) plus ACS median home value and gross rent. Perfect for: 'what is the market like around this address', 'listing price trend in this county'. Market context estimates, never a valuation or ranking. National. Free at /tools/call.

How concentrated is a token's ownership — Genesis402 / UnyKorn Operator Network

How many NFTs from one collection an address holds — Genesis402 / UnyKorn Operator Network