Skip to content

Check Domain

Check whether a domain is available and what it costs.

GEThttps://api.foxreach.io/api/v1/managed-inboxes/domains/check

Requires an API key with the read scope.

Query Parameters#

domainstringqueryrequired

The full domain, for example yourbrand-mail.com. Up to 253 characters.

Response#

dataobject

Availability.

Show data
domainstring
The domain you asked about, lowercased.
availableboolean
Whether it can be registered.
bannedboolean
Whether the registrar refuses it.
priceCentsinteger
Registration price in US cents, or null when it cannot be bought.
renewalPriceCentsinteger
Renewal price in US cents, or null.

Errors#

StatusDescription
401Missing, invalid, revoked or expired API key
403API key does not have the required scope: read
400Enter a domain like yourbrand-mail.com when the value is not a valid domain
404Not found while managed mailboxes are switched off on this environment ({"detail": "Not found"})
422domain is missing
502Domain check is unavailable right now. Try again in a minute. when the registrar lookup fails

Rate Limit#

  • 100 requests per minute, per API key. Fixed 60-second window.
  • Every response includes X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset (unix epoch seconds).
  • A 429 response includes a Retry-After header (seconds until the bucket resets).

For client-side patterns (Retry-After, exponential backoff, monitoring X-RateLimit-Remaining), see Rate Limiting.

Was this page helpful?
View as MarkdownLast updated November 2, 2026