Get started in 10 minutes

From zero to your first test e-CF emitted against the DGII sandbox.

Generate your sandbox API key from the portal, under Settings → API Key. The key is used in the header x-api-key.
Upload your digital certificate under Settings → Signature, to be able to sign the comprobantes.
Emit your first e-CF pointing to the test environment with the header env: TesteCF.

First request

curl -X POST https://test.fixcal.do/fe_Submit \
  -H "x-api-key: TU_API_KEY_SANDBOX" \
  -H "env: TesteCF" \
  -H "Content-Type: application/json" \
  -d @factura-31.json

Explore all endpoints in the interactive reference.

Guides

e-CF overview — actors, lifecycle and key concepts.
e-CF format — complete field reference by section.
Emitter/receiver standards — file naming, XML signing and required services.