Every agent-payable API.

Call when an agent needs TXT at mail._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-mail first.

Call when an agent needs TXT at mailgun._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-mailgun first.

Call when an agent needs TXT at mandrill._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-mandrill first.

Call when an agent needs TXT at pic._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-pic first.

Call when an agent needs TXT at protonmail._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-protonmail first.

Call when an agent needs TXT at s1._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-s1 first.

Call when an agent needs TXT at s2._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-s2 first.

Call when an agent needs TXT at selector1._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-selector1 first.

Call when an agent needs TXT at selector2._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-selector2 first.

Call when an agent needs TXT at selector3._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-selector3 first.

Call when an agent needs TXT at ses._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-ses first.

Call when an agent needs TXT at smtp._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-smtp first.

Call when an agent needs TXT at sparkpost._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-sparkpost first.

Call when an agent needs TXT at zendesk._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-zendesk first.

Call when an agent needs TXT at zoho._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-zoho first.

Call when an agent needs TXT at _dmarc that starts with v=DMARC1. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dmarc first.

Call when an agent needs TXT at _report._dmarc, unfiltered. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dmarc-report first.

Call when an agent needs TXT at _dnslink that contains dnslink=. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dnslink first.

Call when an agent needs TXT at _domainkey, unfiltered. Selector SKUs use selector._domainkey. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-domainkey first.

Call when an agent needs TXT at _mta-sts that starts with v=STSv1. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-mta-sts first.

Call when an agent needs apex TXT records that start with v=spf1. Fails when no SPF record exists. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-spf first.

Call when an agent needs TXT at _smtp._tls that starts with v=TLSRPTv1. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-tls-rpt first.

DNS lookup: A, AAAA, MX, TXT, NS records

Domain & DNS intelligence — records, SSL certs, subdomain discovery.

DUKE Baseball Analyze

DUKE Baseball Predict

DYOE Know Your Agent (KYA) — the pay-safely pre-flight before an agent sends money. ONE call vets the whole deal: is the counterparty SITE legit (scam/fraud/phishing/rug) AND is the payee WALLET safe (OFAC-sanctioned? disposable?), weighed against amount vs. policy. Returns proceed/caution/stop + reasons + a signed, verifiable attestation — one go/no-go instead of three calls. Input: ?domain=merchant.com&wallet=0x...&amount=500

DYOE Wallet Check — is this CRYPTO WALLET safe to pay? Before your agent sends funds to an address, screen it: AUTHORITATIVE OFAC sanctions check (never pay a sanctioned wallet) + on-chain footprint (empty/disposable-address red flag) + human-vouch overlay. Returns verdict (safe/caution/avoid), sanctioned flag, on-chain activity & red_flags. Counterparty trust for the address itself — the payment-safety layer for the agent economy. Input: ?address=0x...

A dated, freshly rebuilt brief on where demand is in the agent-payment economy: what builders and agents are discussing and paying for in the last 30 days (Hacker News, GitHub, Polymarket, marketplace listings), plus our own paid-endpoint call and settlement performance. Rebuilt every day at 06:00 WIB; yesterday's copy is not the product.

Daily EUR foreign-exchange reference rates (source: European Central Bank). Returns the latest ECB reference rate for any supported currency vs EUR, plus cross-rate conversion between two non-EUR currencies.

Daily market intelligence on the x402 Bazaar: index size and composition by network/scheme, USDC price distribution percentiles, real usage stats (share of resources with 30-day calls, top-20 by calls), new-listing rate, churn-risk aging, and domain concentration. Aggregated from the public CDP discovery API. Rebuilt daily by an autonomous agent.

Daily state of the x402 agent economy: observed USDC inflow, seller ranking, category demand, growth, and coverage. Reports its real observation window; concentration adjustment applied only when scan coverage supports it.

Daily TVL history for one chain (up to 2 years) — Genesis402 / UnyKorn Operator Network

Daily weather forecast up to 16 days: highs, lows, rain chance, wind, UV, sunrise/sunset — Genesis402 / UnyKorn Operator Network

Daily challenge generator: Create repeatable daily objectives with a goal and optional modifier.

Damage per second calculator: Estimate sustained DPS from hit damage, attacks per second, and hit chance.

Damerau-Levenshtein distance — like Levenshtein but also counts adjacent transpositions as a single edit — plus a normalized similarity in [0,1].

Returns a supplied published dangerous-goods record for a UN number and exposes missing fields. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.

Combines caller-supplied AIS gap duration, unmatched satellite detections, night-observation fraction, and position discrepancy into a bounded score. It does not identify a vessel, link detections, establish illegal activity, or replace maritime intelligence review.

Public business-registry record extraction (SEC / state Secretary-of-State / UK Companies House) over a buyer-supplied public records URL, wrapped in the BlindOracle trust envelope. Public records only.

Check CSV data for missing values, duplicate rows, schema mismatches and invalid types. Returns a deterministic JSON quality report. Up to 1 MB and 10,000 rows. No AI model calls. $0.01 USDC per check. Resubmit the same payment and input to recover a response.

Inspect payload, destination, secrets and size before an agent sends data to a tool or API

Calculate data age against an explicit freshness policy

Lookup WHOIS records and domain availability in JSON format. Provide the domain name via ?domain=example.com to query registrar, status, and expiration dates.

Full-text search across every SEC EDGAR filing since 2001 (10-K, 10-Q, 8-K, and more) by keyword, company name, or topic. Returns matching filings: company name, ticker (if available), CIK, form type, filing date, accession number, SIC code, and a direct link to the filing. Optional forms filters by comma-separated form type(s); startdt/enddt filter by filing date (YYYY-MM-DD).

Current crude oil price in USD per barrel — WTI or Brent spot price from the U.S. Energy Information Administration (EIA). Reflects the latest official daily figure, not live or real-time trading data; lags the market by several business days.

Current U.S. EPA Air Quality Index (AQI) and pollution levels for a specific location, given latitude/longitude — use to check smog, air pollution, or whether it's safe to be outside. Sourced from the EPA AirNow program (federal/state/local/tribal agencies); covers the US, Canada, and Mexico only. Data is preliminary and unvalidated per EPA data use guidelines — not for regulatory use.

Current total U.S. national debt outstanding — how much the U.S. government owes right now — from the Treasury's 'Debt to the Penny' data: total public debt outstanding, debt held by the public, and intragovernmental holdings. Updated each business day by the U.S. Treasury.

Latest Henry Hub natural gas spot price (USD/MMBtu), sourced from the U.S. Energy Information Administration. Data lags several business days behind the market; not live trading data.

Near-Earth asteroids (NEOs) making their closest approach to Earth on a given date (default: today), sorted by distance -- also called close-approach or flyby data. Includes each asteroid's estimated size, relative velocity, and miss distance. Sourced from NASA JPL's Near Earth Object Web Service (NeoWs).