HMhmrc
TE

Test Fraud Prevention Headers

Pipelines

Fraud prevention: validate request headers and retrieve validation feedback per API

2 operations29 models1 revision

Changes

Full history

Source

View schema
Spec
OpenAPI 3.0.3
Retrieved
Jul 13, 2026, 20:48 UTC
Digest
afc3053ce245

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/hmrc/apis/txm-fph-validator-api.md
curl https://skmtc.dev/hmrc/apis/txm-fph-validator-api/llms.txt