5 Services from api.oldcolonyweb.com

Validates a batch of 2–10 email addresses for syntax, DNS, MX records, and disposable-domain indicators, returning ordered evidence and explicit unknown flags.

Queries public DNS records (MX, SPF, DMARC) for a domain and returns observed mail posture data with explicit unknowns and source names.

Validates a batch of 11–50 email addresses for syntax correctness, DNS resolution, MX record presence, and disposable-domain detection for $0.005 per batch.

Executes a real $0.002 USDC x402 v2 payment on Base as a self-test, returning a simple JSON response as proof of successful payment settlement.

Deterministically validates an email address for syntax correctness, DNS/MX record presence, disposable domain status, and common provider typos before paid enrichment or outreach.