Quellengeprüfte Recherche: OKX VS Kraken REST

Decision Matrix

Source Map

• OKX API Documentation: REST authentication (okx-rest-authentication)
• OKX API Documentation: OKX API guide (okx-api-guide)
• Kraken Developers: Spot REST Authentication (kraken-rest-authentication)
• Coinbase Developer Documentation: Coinbase App API Key Authentication (coinbase-api-key-authentication)

Control Notes

1. Signing object

Signing object is the point where public documentation must become an operating rule. In this package, it means OKX and Kraken sign different canonical objects and headers. The practical action is to document the exact prehash string, header set and body normalization per venue. The unresolved edge is whether a future SDK version changes canonicalization, so the article keeps that edge explicit instead of turning it into a reward claim, licensing claim, approval claim, safety guarantee, recovery promise, platform ranking or price implication.

2. Replay control

Replay control is the point where public documentation must become an operating rule. In this package, it means timestamp expiry and nonce monotonicity are related but not equivalent. The practical action is to separate local clock checks from per-key nonce generation and storage. The unresolved edge is how each venue handles duplicate or out-of-order private requests during retry, so the article keeps that edge explicit instead of turning it into a reward claim, licensing claim, approval claim, safety guarantee, recovery promise, platform ranking or price implication.

The operating test is narrow.

3. Permission scope

Permission scope is the point where public documentation must become an operating rule. In this package, it means a valid signature can still lack trading, funding or account permissions. The practical action is to start with read-only keys and promote only the smallest permission needed. The unresolved edge is whether account-specific settings restrict the documented endpoint, so the article keeps that edge explicit instead of turning it into a reward claim, licensing claim, approval claim, safety guarantee, recovery promise, platform ranking or price implication.

The operating test is narrow.

4. Retry behavior

Retry behavior is the point where public documentation must become an operating rule. In this package, it means retrying a signed request can create duplicate, stale or rejected private actions. The practical action is to classify every retry as idempotent read, order action, cancel action, transfer action or unsafe unknown. The unresolved edge is whether network failure happened before or after venue acceptance, so the article keeps that edge explicit instead of turning it into a reward claim, licensing claim, approval claim, safety guarantee, recovery promise, platform ranking or price implication.

The operating test is narrow.

5. Evidence stop rule

Evidence stop rule is the point where public documentation must become an operating rule. In this package, it means API documentation is not private-account proof. The practical action is to keep URL, access time, endpoint, key scope and non-secret error label in the decision record. The unresolved edge is whether private support or account state changes the outcome, so the article keeps that edge explicit instead of turning it into a reward claim, licensing claim, approval claim, safety guarantee, recovery promise, platform ranking or price implication.

The operating test is narrow.

Known Unknowns

• whether a future SDK version changes canonicalization
• how each venue handles duplicate or out-of-order private requests during retry
• whether account-specific settings restrict the documented endpoint
• whether network failure happened before or after venue acceptance
• whether private support or account state changes the outcome

Practical Takeaway

OKX and Kraken both require signed private REST requests, but their replay-control models should be implemented separately. OKX's API guide describes timestamped request signing with API key material and passphrase handling, while Kraken's REST authentication guide describes nonce-bearing private requests and API-Sign construction. The useful decision is to keep clock discipline, nonce monotonicity, permission scope, IP or environment binding, retry logic and audit logging separate for each venue instead of sharing one generic exchange-auth adapter. The article stops at the evidence boundary. It helps the reader decide what to inspect next without converting public documentation into a promise that a private account, wallet, API key, pool route, stablecoin balance, tokenized asset or policy framework will work under every future condition.