api.aventtech.com publishes 19 machine-payable endpoints over the x402 protocol, priced from $0.002 to $0.03 per call. Each was probed directly; the response code below is what it returned.
| Endpoint | Method | Price | Probe |
|---|---|---|---|
| /convert/color | GET | $0.002 | 200 |
| /convert/currency | GET | $0.003 | 402 |
| /convert/time | GET | $0.002 | 200 |
| /explain/cron | GET | $0.003 | 200 |
| /fx | GET | $0.002 | 200 |
| /generate/qr | GET | $0.003 | 402 |
| /inspect/password | GET | $0.004 | 200 |
| /integration/device | GET | $0.03 | 200 |
| /lookup/dns | GET | $0.002 | 402 |
| /lookup/domain | GET | $0.005 | 402 |
| /net/cidr | GET | $0.002 | 200 |
| /parse/useragent | GET | $0.002 | 200 |
| /validate/card | GET | $0.002 | 200 |
| /validate/email | GET | $0.003 | 402 |
| /validate/iban | GET | $0.002 | 200 |
| /validate/isin | GET | $0.002 | 200 |
| /validate/phone | GET | $0.003 | 402 |
| /validate/vat | GET | $0.005 | 200 |
| /validate/vin | GET | $0.003 | 200 |
Color conversion: hex or rgb() input to hex, RGB, HSL, approximate relative luminance and best text contrast (black/white).
Convert an amount between currencies and get the exchange rate. Converts between 30+ currencies (USD, EUR, GBP, JPY and more) using daily European Central Bank reference rates with cross-rate calculat…
Timezone conversion between IANA zones: convert a datetime (or now) from one zone to another, returning UTC instant and local wall times.
Cron expression explainer: human-readable description plus the next run times (UTC) for standard 5-field cron syntax including ranges, lists and steps.
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 curr…
QR code generation returning clean scalable SVG: any text/URL up to 1800 chars, selectable error-correction level (L/M/Q/H).
Password strength and breach inspection: character classes, entropy bits, verdict, and Have-I-Been-Pwned breach count via k-anonymity (only a truncated hash prefix leaves the server; the password is n…
AV/IT device integration facts for AI agents writing drivers and integrations: control protocol family, transport, TCP/UDP port, connection notes and field-tested gotchas for professional audio-video,…
Look up DNS records for any hostname: query A, AAAA, MX, TXT, CNAME, NS, SOA, CAA, SRV and PTR records with TTLs over DNS-over-HTTPS. Check mail configuration (MX), SPF/DKIM/DMARC TXT records, nameser…
Look up a domain name and check whether it is registered or available. Queries authoritative registry data via RDAP to return registration status, the registrar, creation and expiry dates, nameservers…
IPv4 CIDR calculator: network, broadcast, netmask, wildcard, usable host range and count, plus optional contains-IP membership check.
User-agent string parsing: browser, engine, OS, device type/vendor/model, CPU architecture, plus a likely-bot flag. For agents analyzing logs or adapting responses per client.
Validate a credit card or payment card number and detect its brand. Checks the Luhn checksum and identifies Visa, Mastercard, Amex, Discover, Diners or JCB, returning the BIN and last four digits. Str…
Validate an email address and check whether an email domain can receive mail. Verifies email syntax and performs a live MX and A DNS lookup to return a deliverability verdict, the mail servers (MX hos…
Validate an IBAN and check whether a bank account number is valid. Verifies the ISO 13616 MOD-97 checksum, structure and country length against the IBAN registry, and returns validity, the country, th…
Validate an ISIN securities identifier (ISO 6166) and check whether it is valid. Verifies structure and the Luhn check digit and extracts the country code and NSIN. Instant ISIN validation and verific…
International phone number validation and normalization (libphonenumber): validity, country, E.164, national/international formats and line type.
Validate an EU VAT number and check whether a VAT registration is valid, against the official European Commission VIES registry in real time. Returns validity and, when available, the registered compa…
Vehicle Identification Number validation (ISO 3779): 17-char structure, check digit (position 9), WMI/VDS/VIS decomposition and model-year code.