Decodes the x402 v2 PAYMENT-SIGNATURE header sent with the request into a readable receipt: x402 version, scheme, CAIP-2 network and chain name, resource URL, the copied payment requirements, payer, recipient, value in atomic units and USD, USDC contract, nonce, validity window in ISO-8601 with seconds to expiry, signature length and prefix, extension keys, and pass/fail diagnostics. Computed locally, no upstream source.
Checks an email address without sending mail: syntax rules (IDN domains in punycode and Unicode), MX records by preference, null MX (RFC 7505), implicit A/AAAA fallback, NXDOMAIN, SPF and DMARC policy, disposable, role, free-webmail and +tag flags, mail provider from MX hosts, and typo suggestions for popular domains. Returns a verdict and 0-100 score with reasons. Mailbox existence is not confirmed. Sources: Cloudflare DNS over HTTPS, disposable-email-domains (CC0).
Due-diligence report on a website, merchant or counterparty domain: registrable domain, registry RDAP facts (registrar, abuse contact, created, expiry, age, status, nameservers), DNS records (A, AAAA, MX, NS, TXT, CAA) from Cloudflare DNS over HTTPS, SPF and DMARC posture, a live web probe (redirect chain, HTTPS, HSTS, site-supplied title, parked or for-sale signs), brand-impersonation checks, and a 0-100 risk score with transparent weighted signals and a verdict.
Geocodes a one-line US address, or reverse-geocodes a lat/lon point, to coordinates and the Census geographies containing it: state and county FIPS, county subdivision, place, tract, block group, block, ZCTA, congressional and state legislative districts, school districts, urban area, metro or micro area, metro division, CSA, PUMA, census region and division, plus ground elevation in feet. Sources: US Census Geocoder (current benchmark), USGS 3DEP elevation service (EPQS).
Latest CMS NADAC (National Average Drug Acquisition Cost) per-unit prices for a drug name, brand name or NDC, from data.medicaid.gov (monthly pharmacy invoice survey, weekly files). Groups by NADAC description, pricing unit (EA, ML, GM), generic or brand rate class and OTC flag, each with min, median and max unit cost across NDCs, effective date, NDC count, sample NDCs, and a 30-unit acquisition cost for per-dose EA items. Single-source generics map to RxNorm brand names.
Full product record for one package NDC: normalized NDC forms; RxNav status, RxCUI, concept name and history; labeler, marketing category, status and dates, application number, DEA schedule, imprint, color, shape and size from RxNav; brand and generic name, dosage form, route, active ingredients with strengths and package description from the openFDA NDC Directory; latest CMS NADAC unit cost; openFDA recall enforcement reports from the last 36 months.
Converts a National Drug Code between FDA 10-digit layouts (4-4-2, 5-3-2, 5-4-1) and the HIPAA 11-digit 5-4-2 form, dashed or undashed. Ambiguous undashed 10-digit input is resolved against NLM RxNav by checking all three possible layouts. Returns ndc11, ndc11_dashed, ndc10, product_ndc, segment_format, resolution method, candidate layouts, and RxNav status (ACTIVE, OBSOLETE, ALIEN, UNKNOWN) with RxCUI and concept name.
FDA drug recall enforcement reports from openFDA, newest report first, filtered by optional drug, brand or firm text (every word must match; brand names also match their RxNorm ingredients), look-back months and FDA classification (I, II, III). Entries include recall number, classification, status, product description, reason, recalling firm, distribution pattern, initiation and report dates (ISO) and voluntary or mandated status, plus counts by classification.
FDA drug shortage records from openFDA, most recently updated first, with optional drug-name and status filters (current, to be discontinued, resolved). Name filters match every word in generic name, brand or presentation, plus RxNorm ingredients for brand names. Entries give generic name, presentation, dosage form, status, availability, related info, reason, therapeutic category, company, ISO dates and package NDC, plus counts by status and an in_shortage flag.
Drug card for a generic or brand name: NLM RxNorm concept (RxCUI, ingredients, brands); one openFDA label (brand checked against RxNorm ingredients, else single-ingredient full prescribing info, most common route, earliest NDA/BLA) with clipped boxed warning, indications, dosing, contraindications, warnings, interactions, pregnancy, lactation, special-formulation flag, other routes, DailyMed link; DEA schedule and status (NDC data); FDA shortage and 2-year recall summaries.
$0.02–$0.02
About Drug card for a generic or brand name: NLM RxNorm concept (RxCUI, ingredients, on PayAPI Market
What APIs does Drug card for a generic or brand name: NLM RxNorm concept (RxCUI, ingredients, offer?
Drug card for a generic or brand name: NLM RxNorm concept (RxCUI, ingredients, has 10 live APIs on PayAPI Market with 0 endpoints in total, in Data, Finance: Decodes the x402 v2 PAYMENT-SIGNATURE header sent with the request into a, Checks an email address without sending mail: syntax rules (IDN domains in, Due-diligence report on a website, merchant or counterparty domain: registrable, Geocodes a one-line US address, or reverse-geocodes a lat/lon point, to, Latest CMS NADAC (National Average Drug Acquisition Cost) per-unit prices for a, and 5 more.
Are Drug card for a generic or brand name: NLM RxNorm concept (RxCUI, ingredients,'s APIs verified?
10 of 10 have at least one settlement-verified route: PayAPI Market paid for a real call from its own wallet, received real data back and recorded the USDC payment on-chain. Each listing page shows which routes were paid and links the receipt.
How do I pay for Drug card for a generic or brand name: NLM RxNorm concept (RxCUI, ingredients,'s APIs?
Per request, in USDC, over the x402 protocol. An agent calls the endpoint, receives HTTP 402 with the price and wallet, pays and retries. There is no API key, account or subscription. Free to list. PayAPI takes 0% of each job, and Drug card for a generic or brand name: NLM RxNorm concept (RxCUI, ingredients, is paid directly.