Skip to main content
POST
/
v2
/
companies
/
check
Check companies exist
curl --request POST \
  --url https://product-api.thedatacity.com/api/v2/companies/check \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "companyNumbers": [
    "10958787"
  ]
}
'
[
  {
    "CompanyNumber": "<string>",
    "InDatabase": true
  }
]

Authorizations

​
Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Body

application/json

Full shape is under Schema; example is minimal.

​
companyNumbers
string[]
required

JSON body for POST companies check.

Response

200 - application/json

Per-number existence flags from the product API.

​
CompanyNumber
string

Companies House company number as requested.

​
InDatabase
boolean

True if the company is known to the product API.

Last modified on June 23, 2026