API key format

Authentication

All requests to the Emigro On-Chain API must be authenticated using an API key. Each key identifies a partner or integration and is tied to individual usage quotas and permissions. Keys are provided by Emigro and must be included in the request headers.

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API Key Format

An Emigro API key follows this structure:

esk_<environment>.<secret>

Example:

esk_live.ABCdefge1234567890

Parts:

• esk_live → prefix identifying the environment (e.g. esk_live, esk_test)

• The portion after the dot (.) → a randomly generated secret

Keys are validated via a SHA-256 hash server-side, so the full secret is never stored in plaintext.