Crypto APIs are expected to operate quietly in the background while carrying a large share of the security, liquidity, and risk burden that once belonged to fully integrated exchanges. That expectation is convenient for product teams, but it also creates a false sense of simplicity: the way an API is designed and governed has direct consequences for user funds, market integrity, and regulatory exposure.

Security

Most security conversations around crypto integrations still start and end with the API key. That is necessary, but increasingly insufficient. On the operational side, the basics are familiar: granular scopes (read-only, trading-only, no-withdrawal), IP whitelists, HMAC or asymmetric signing, and short-lived tokens for…