Infrastructure x402 offerings

DNS and list based verification. Never claims that a mailbox exists without evidence: without an SMTP probe the verdict for a routable address is "unknown", not "valid".

Email verification / email validation / bounce check before sending: verify one email address: syntax, MX records, mail provider (Google Workspace, Microsoft 365, ...), catch-all detection, role/free/disposable flags and a live SMTP RCPT check. Returns deliverable, undeliverable, catch_all or no_mx. Inconclusive results (greylisting) return 503 and are not charged.

Analyzes usage patterns to recommend maintenance actions and timing.

Status of your scheduled callbacks: next call, calls left, last HTTP status, timing and error. Pass id for one schedule, or nothing to list all of yours; cancel=1 stops it. No free trial.

Which public Base network RPC endpoints are healthy right now: each one's latest block, how far behind the freshest it is, and response time. Pick a fast, in-sync node before you send.

Is this URL up? Live check: HTTP status, every redirect hop, response time, content type and size, server and security headers (HSTS, CSP).

DNS lookup for up to 10 domains in one call: A, AAAA, MX, NS, TXT, CNAME, CAA and SOA records as structured JSON.

Registration facts for a domain from the public registry (RDAP): registrar, created, updated and expiry dates, status codes, nameservers and DNSSEC. Personal contact data is left out.

Are these domain names free to register? Checks up to 10 names against the public registries: registered (with expiry) or not found (likely available).

Which public Base network RPC endpoints are healthy right now: each one's latest block, how far behind the freshest it is, and response time. Pick a fast, in-sync node before you send.

DNS lookup for up to 10 domains in one call: A, AAAA, MX, NS, TXT, CNAME, CAA and SOA records as structured JSON.

Are these domain names free to register? Checks up to 10 names against the public registries: registered (with expiry) or not found (likely available).

Registration facts for a domain from the public registry (RDAP): registrar, created, updated and expiry dates, status codes, nameservers and DNSSEC. Personal contact data is left out.

Is this URL up? Live check: HTTP status, every redirect hop, response time, content type and size, server and security headers (HSTS, CSP).

A transparent schedule-delay option-value heuristic for one infrastructure claim from caller-supplied facts. Classifies the claim by what approval operation it constrains and what violation does next…

Domain registration record, looked up live from the registry's own RDAP server: whether it is registered, registrar, status flags, created / updated / expiry dates, nameservers, and which registry answered. No personal contact data. Every lookup is an answer and is charged: "not registered" (registered:false) and "this registry offers no RDAP service" (rdapAvailable:false, e.g. .de) included.

x402 Doctor for a block you hit (e.g. 403): we request the seller ourselves and say whether the block is on your path (IP, region, bot wall) or on the seller side, with what each of us saw. We never buy around a block.

Email validation — Syntax check + live MX/deliverability + disposable-domain flag.

Certified extract of one Middle Eastern reference value (policy rate, VAT, minimum wage, statutory interest, tax rates and more, 9 Middle Eastern countries): the value and its citation, sha256 of the archived official source and the verification chain, Ed25519-signed for audit and compliance files. Refused without charge when no archived evidence exists. GET /v1/certified/{country}/{series}.

Atomically write (or release) a key only if its current value equals `expected` - the coordination primitive for distributed locks and optimistic concurrency across agents. Acquire a lock: expected=null + a value + ttlSeconds. Release it: expected=<your token> with no value (deletes on match). Update safely: expected=<old>, value=<new>. Returns whether it swapped and the current value.

Atomically increment (or decrement) a numeric key and return the new value - a coordination primitive for counters, locks, and rate budgets shared across agents. Creates the key at 0 if absent. Retry safely with a requestId: a repeat with the same id returns the first answer and counts once; a retry without one counts again.

Live operating telemetry of MER0, the WhaleTape assistant agent: balance, measured thinking cost per day, runway in days at the current pace, cost per thought by model.

Change watch for meta tags all named: runs the check, compares it with the result from your previous call for the same url (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

Change watch for meta tags article: runs the check, compares it with the result from your previous call for the same url (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.