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Developers

Authentication

Send two headers on every request. X-API-Key works like a username and X-API-Secret like a password. Create the pair on the API keys page of the dashboard; the secret is shown only once and is not stored in plain text.

cURL
curl https://ulawk.com/api/v1/sirketler/ \
  -H "X-API-Key: ulk_DENEME_ANAHTARINIZ" \
  -H "X-API-Secret: ulsk_DENEME_GIZLI_ANAHTARINIZ"

Key types

TypeWhat it sees
LiveOnly the companies you follow. Adding uses your allowance.
SandboxOnly made-up DENEME-… companies; never touches live data, your plan or the registry. Responses carry X-Ulawk-Ortam: deneme. (Sandbox)

Rules

  • A wrong or missing secret returns 401 yetkisiz.
  • Requests that create, change, delete or test webhooks work with an API key only; browser sessions are refused (403 anahtar_gerekli).
  • MCP takes the same pair as Authorization: Bearer KEY:SECRET; MCP does not accept sandbox keys (MCP).
  • Older keys created before secrets existed keep working on their own; use a pair for new integrations.
  • Never put keys in browser code, mobile apps or public repositories; call from your server.

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