CO

CompanyStack API

UK company data: filed accounts, KYB checks, new-company alerts, officers and ownership

156 operations33 schemas1 revision

Changes

Full history

Source

View schema
Spec
OpenAPI 3.1.0
Document
api.companystack.co.uk · JSON, 435 KB
Retrieved
Oct 19, 2026, 17:35 UTC
Digest
8f3234237d2d

For agents

Every page here has a markdown twin. The overview is one fetch; the llms.txt lists every operation with a link to its own markdown.

curl https://skmtc.dev/companystack/apis/companystack-api.md
curl https://skmtc.dev/companystack/apis/companystack-api/llms.txt