Every agent-payable API.

HUD Fair Market Rents by county. Perfect for: 'fair market rent for a county', 'HUD FMR lookup', 'voucher rent limits', 'Section 8 rent standards', 'program rent for an area'. Returns official HUD Fair Market Rents (efficiency through 4-bedroom) for a US county by fiscal year from the HUD USER API. National. Program rent context only -- not market listings or affordability advice. Charge-free when the HUD token is not configured or the HUD API is unavailable.

Free public-domain books on "Human-alien encounters": browse the catalogue's works tagged with that Library of Congress subject (463 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.

Determine whether an agent action may run, needs approval or must be denied

Issue or verify a canonical human mandate checksum and deterministic action constraints, including signature trust-policy checks.

Human verification for AI agents — proof of humanity, sybil resistance, and 'is this wallet a real person' answers in one paid call. Returns two ZK-style outputs about any EVM wallet: (1) total humanity score 0-255 (15 = baseline reCAPTCHA, 45 = + Google OAuth, 70 = + Apple ID, 105 = + 2FA, 255 = full stack), with optional `min_score=N` for a yes/no `passes` verdict; (2) per-method verification check via `check=telegram,apple,g2fa,...` — buyer must NAME the methods to ask about, we never enumerate the full set. Backed by 141,871 Twin Matrix Soulbound Tokens on BNB Chain plus the canonical humanity registry off-chain. The underlying verification list never leaves Twin3 — only verdicts.

Human-readable byte sizes. Call when presenting file sizes, cache usage, or download progress to users. Returns a human string like 1.5 KB from a byte count. $0.001 USDC per successful call via x402 on Base—deterministic first-party JSON, no API key, no subscription, and nothing is billed on structured validation errors.

Preflight a proposed command or AI-agent tool call before execution and verify that operational risk stays within the declared limit.

Deterministic verified outcome. Payment settles only after HumanMirror verifies success.

Create and verify a cryptographic execution receipt for an AI-agent tool call or input/output pair, providing deterministic execution provenance.

Clean and canonicalize JSON, then independently verify the output is stable and idempotent.

Render an ISO 8601 duration as an English phrase, e.g. 'P1Y2M' → '1 year and 2 months'. Components are shown in descending order with correct pluralization.

Business Frameworks business-frameworks/risk/decide/hurdle@1.0 — Set the hurdle rate. Call when an agent operating a business (launch to ~$50M revenue) must decide on risk and wants the rule, the inputs it needs, the action and the check. Returns 220 tokens of original synthesis with public citations and child handles; free layer at /catalogue.

Applies caller-selected thresholds to supply/return temperature differences, commanded operation, fan state and electrical power. It identifies rule violations in supplied observations only; it does not connect to building controls, establish root cause, replace commissioning or authorize maintenance actions.

True cost of trading HYPE on Hyperliquid, measured on Vaunt's own IOC taker orders: slippage vs mid (p50/p90 bps), taker fee paid, wall-clock to fill, fill rate, against the venue-class median, plus spread, round-trip cost, depth within 1% and funding APR. Real fills, not quotes.

Hyperliquid (HYPE) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network

Hyperliquid funding rate extremes: live perpetual funding APR outliers and which side collects. Use for funding-rate and carry trade signals.

Hyperliquid L1 DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees — Genesis402 / UnyKorn Operator Network

Hyperliquid perpetual futures market data: mark and oracle price, 24h change, hourly funding rate and funding APR, open interest (coins and USD), 24h volume, max leverage. Pass coins (e.g. ['BTC','ETH','SOL']) or omit them to get the top markets by open interest. Params: coins (optional, max 50), limit (1 to 50, default 10, used without coins).

Where ETH whale positions get liquidated and how far price must move to trigger it: levels with notional at risk, nearest first. Single-market slice of /liquidations, for agents that only track ETH

What history exists before you pay for it: how many markets we track, which asset classes, and the range covered. The cheap probe that tells an agent whether the paid series is worth buying

Where BTC whale positions get liquidated and how far price must move to trigger it: levels with notional at risk, nearest first. Single-market slice of /liquidations, for agents that only track BTC

Only what changed since your last call: pass the cursor you got back and receive just the new whale events, never the whole base again. Built for agents that poll on a schedule and pay per request

Hyperliquid Top of order book: Top of order book for Hyperliquid (HYPE-USD) from Coinbase Exchange public USD market data. The product ID can be overridden; data only, not investment advice.

IANA timezone lookup for agents: offset, abbreviation, DST and local time for $0.002 USDC—stdlib zoneinfo, no API key. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover only the supplied input or one bounded public endpoint at request time; callers must verify before acting.

Validate an IBAN offline: country registry length, structure, and the ISO 7064 mod-97 checksum that catches what humans and spreadsheets actually get wrong — a transposed pair, a dropped character, an O typed for a zero. Returns the normalised and print-formatted forms, country, SEPA membership, and the bank identifier where the layout is known. Every rejection names WHICH check failed, so you know whether to fix the row or drop it. Structure only: a valid IBAN is not proof the account exists.

Validates one IBAN offline: country, expected length, ISO 7064 mod-97 check digits, whether it is inside SEPA, and the account number split out. Deterministic, no network call and no third party that can go down. Built for cleaning a list of accounts one at a time.

ICMP ping latency and packet loss

Validate a 15-digit mobile device IMEI by its Luhn check digit. Spaces and hyphens are ignored.

Resolves IPv4/IPv6 addresses to geographic coordinates, country, ISP, autonomous system number (ASN), and timezone.

IP address geolocation -- city, country, org, timezone. Pass ?ip=8.8.8.8

IP address ownership (RDAP): network, organization, country, CIDR — Genesis402 / UnyKorn Operator Network

Call when an agent needs geo, ASN, and ISP data for a public IP (private and metadata addresses rejected). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/ip-geo first.

IP geolocation: give an IPv4 or IPv6 address, get its country, region, city, continent and approximate coordinates.

Country, city, region, ISP/org, and lat/lon for an IPv4/IPv6 address (ipwho.is, keyless).

IP geolocation, ASN, and proxy/VPN detection. Pass ?ip=x.x.x.x or omit for caller IP.

IP Geolocation: IP geolocation: country, city, ASN, coordinates 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-geo-ip","request":"<input>"}. No account, no API key.

Inspect one IP address for network ownership, location and abuse signals.

Inspect up to 200 IP addresses at 0.0005 USDC per address.

Resolve any IPv4 or IPv6 address to location and network data. Returns country, country_code, city, region, postal, lat/lon, timezone, ISP, org, and ASN. Use for fraud detection, geolocation enrichment, or access log analysis.

IP reputation lookup — has this address been seen scanning/attacking a live honeypot, what did it target, how confident.

Looks up one IPv4 or IPv6 address against the two authoritative, keyless public sources: RDAP registry data (who holds the block, in which country, since when, abuse contact) via the ARIN-to-RIR referral chain, and the origin ASN from Team Cymru's DNS service. No city-level geolocation and no VPN/proxy detection — those need a licensed commercial database this endpoint deliberately does not use. Built for going through a list of IPs one at a time.

Checks one IPv4 address against nine public DNS blocklists at once — SpamCop, UCEPROTECT, PSBL, Barracuda, DroneBL and four more — and returns each list's raw return code plus the reason text the list itself publishes, not a score. Every list is re-checked on each call with its RFC 5782 test entry, so a dead list or one that refuses queries comes back as unavailable instead of reading as clean. Includes the delisting URL for each hit.

IP geolocation — IP address → location, ASN, ISP.

Recently priced IPOs with parsed 424(b) terms — price per share, share counts, gross proceeds, exchange and ticker, each with source evidence

US IPO pipeline — companies currently in registration (S-1/F-1), filterable by stage, recency, SIC and domestic/foreign

IPO registration withdrawals (Form RW) with time-in-registration — the market risk-sentiment tape

Full EDGAR offering timeline for one issuer — registration, amendments, EFFECT, 8-A12B and 424(b) with parsed terms

IPO X/Twitter social-sentiment score (aggregate signal, no raw posts)

A deterministic digest of the IPO pipeline for a window: every 424B4 final prospectus and every S-1/F-1 registration from SEC EDGAR, each filer classified from its own submissions index as a first-time registrant (an IPO), an already-public issuer (follow-on or resale, not an IPO) or a SPAC, optionally filtered by a keyword on the filer's name, with tickers/exchanges where listed and a downloadable filings table. No LLM, no guessing - filing facts only. Default last 7 days.

IPOSignal Sentiment Score — proprietary daily signal measuring investor appetite for new listings