Verify the Namecheap API connection and credentials. Returns the account balance summary — a lightweight call that confirms the API user, key, and IP whitelist are all working.

List domains in the account, with creation/expiry dates, lock status, auto-renew, and WhoisGuard status. Supports paging and search.

Get detailed info for one domain: status, created/expiry dates, WhoisGuard, DNS provider, and modification rights.

Check availability (and premium pricing) for one or more domains. Max 50 per call.

Get the Registrant, Tech, Admin, and AuxBilling contact details for a domain.

Get the registrar lock status for a domain.

Get all DNS host records (A, AAAA, CNAME, MX, TXT, URL, etc.) for a domain.

Get the nameservers associated with a domain, and whether it uses Namecheap's default DNS.

Get email forwarding settings (mailbox → forward-to) for a domain.

Get Namecheap pricing for a product type (e.g. DOMAIN register/renew/transfer). Cache results — this is a heavy endpoint.

List SSL certificates in the account, with type, host name, status, and expiry.

Replace ALL DNS host records for a domain. WARNING: this is destructive — Namecheap deletes any record not included here, so you must pass the COMPLETE desired record set (call get_dns_hosts first, merge your changes, then send everything). Switches the domain to Namecheap DNS if needed.

Switch a domain to Namecheap's default (BasicDNS) nameservers. Required for Namecheap host records, URL/email forwarding.

Point a domain at custom nameservers. NOTE: Namecheap host records, URL/email forwarding stop working while custom nameservers are in use.

Set email forwarding rules for a domain. Replaces the full forwarding set (pass all rules you want to keep).

Lock or unlock a domain at the registrar (theft protection). Unlock before initiating an outbound transfer.