Domain Check

Check whether a domain name is available for registration across one or more TLDs, using the RDAP protocol.

POST /api/domain-check

Parameters

Field	Type	Required	Default	Description
domain	string	Yes	—	Domain name without TLD (e.g. morso)
tlds	array	No	["com", "net", "org", "io", "dev"]	TLDs to check

Response

Field	Type	Description
results	array	Availability per TLD
results[].domain	string	Full domain (e.g. morso.com)
results[].available	boolean	Whether the domain is available
results[].error	string	Error message if the check failed

Examples

Default TLDs

curl -X POST https://morso.dev/api/domain-check \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain": "myproject"}'

{
  "results": [
    {"domain": "myproject.com", "available": false},
    {"domain": "myproject.net", "available": true},
    {"domain": "myproject.org", "available": true},
    {"domain": "myproject.io", "available": false},
    {"domain": "myproject.dev", "available": true}
  ]
}

Custom TLDs

curl -X POST https://morso.dev/api/domain-check \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain": "myapp", "tlds": ["app", "dev", "tools", "sh"]}'

{
  "results": [
    {"domain": "myapp.app", "available": false},
    {"domain": "myapp.dev", "available": true},
    {"domain": "myapp.tools", "available": true},
    {"domain": "myapp.sh", "available": true}
  ]
}