Authentication

Authenticate to the Corinthian API with bearer API keys and environment-aware key prefixes.

Corinthian’s public API uses bearer API keys.

Header Format

curl https://api.conduitt.io/invoices \
  -H "Authorization: Bearer ck_live_your_key"

Key Prefixes

PrefixEnvironment
ck_live_live
ck_test_test

Key Management Notes

  • keep keys server-side only
  • create keys with the scopes your integration actually needs
  • rotate compromised keys immediately
  • do not confuse API-key management with Settings → Developer, which is for OAuth applications

Common Failures

  • missing Authorization header
  • malformed bearer token
  • revoked or environment-mismatched key
  • insufficient scopes for the endpoint you are calling

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