All projects on Base matching “mx”

Validate an email DOMAIN by performing an SMTP handshake WITHOUT sending. DO NOT use for bulk emailing. Returns MX records, greets, and a deliverability verdict. — $0.003 USDC/call on eip155:8453. Pay-per-call via x402 — no API key, no account. Free samples daily.

Email address validation: syntax, MX, SMTP mailbox check, disposable and role detection.

Verify an email address: syntax, MX records, disposable-domain and role-address detection, free-provider flag, quality score 0-100 and verdict. Costs $0.001 USDC per call via x402.

Check an email address or domain: MX records, mail provider (Google/Microsoft/Zoho), SPF, DMARC policy, disposable-domain flag and a 0-100 deliverability score. Validate leads before sending.

Check 1-100 email addresses ($0.001 each): RFC syntax, normalization and canonical form, MX lookup (A fallback), disposable domain (CC0 list), role account, free provider, typo suggestion (gmial.com -> gmail.com), verdict and 0-100 score. No SMTP probing.

Company enrichment from domain — composite domain dossier: RDAP registration + DNS infrastructure signals, tech-stack detection, likely corporate email patterns + MX verification, and SSL/TLS certificate health for one domain, fused into a single response with an aggregated signals list. Lead data for B2B prospecting. One domain per call. Tiger Operations. Use when vetting a company or domain and

Change watch for spf authorizes freshdesk: runs the check, compares it with the result from your previous call for the same domain (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.

Repair malformed JSON text into valid parsed JSON: markdown code fences, single quotes, smart quotes, unquoted keys, trailing commas, comments, Python literals (True/None), raw newlines in strings, and truncated output (auto-closes strings, arrays and objects). Returns the parsed value plus a log of every repair applied. Built for LLM output that almost parses. POST a JSON body like: {"text":"```j

Design or analyze ideal first-order RC low-pass/high-pass filters; calculate cutoff, attenuation, phase, settling and PWM fundamental attenuation

Transfer logs for one token contract, optional holder filter, amounts decoded with token decimals, read-only.