出典確認済みリサーチ: Exchange API KEY Scope

Decision Matrix

Source Map

• Binance Developers: Spot API Request Security (binance-request-security)
• Coinbase Developer Documentation: API Authentication (coinbase-auth)
• OKX Technical Support: OKX API Guide: API Key Security (okx-api-guide)
• MEXC API Documentation: Spot API Introduction (mexc-spot-api)
• Kraken Developers: Spot REST Authentication (kraken-rest-auth)

Control Notes

1. Permission scope

Permission scope is the part of the decision where a public source has to become an operating rule. In this package, it means each venue names private permissions differently. The practical action is to map read, trade and withdraw scopes separately. The unresolved edge is hidden account flags, so this article keeps that uncertainty visible instead of turning it into a safety claim, reward claim, licensing claim, future-availability claim or product endorsement.

For a reader or operator, permission scope should be recorded before funds, account access, wallet recovery, API order flow, whitelists, identity checks, custody decisions, cross-chain transfers or tokenized-asset decisions become material. The record can stay simple: official URL, access date, product surface, account or network scope, source claim, editorial interpretation and a stop condition. Good evidence is non-secret. Bad evidence contains passwords, passphrases, seed phrases, private keys, API secrets, full balances, identity documents, verification codes, support-ticket private content or screenshots that expose account state.

2. IP binding

IP binding is the part of the decision where a public source has to become an operating rule. In this package, it means IP allowlists can reduce key abuse but can also break failover. The practical action is to list allowed hosts and emergency disable steps. The unresolved edge is NAT and proxy changes, so this article keeps that uncertainty visible instead of turning it into a safety claim, reward claim, licensing claim, future-availability claim or product endorsement.

For a reader or operator, ip binding should be recorded before funds, account access, wallet recovery, API order flow, whitelists, identity checks, custody decisions, cross-chain transfers or tokenized-asset decisions become material. Good evidence is non-secret.

3. Expiry

Expiry is the part of the decision where a public source has to become an operating rule. In this package, it means some venues constrain keys without IP protection or after inactivity. The practical action is to record renewal windows and owner. The unresolved edge is future policy changes, so this article keeps that uncertainty visible instead of turning it into a safety claim, reward claim, licensing claim, future-availability claim or product endorsement.

For a reader or operator, expiry should be recorded before funds, account access, wallet recovery, API order flow, whitelists, identity checks, custody decisions, cross-chain transfers or tokenized-asset decisions become material. Good evidence is non-secret.

4. Freshness

Freshness is the part of the decision where a public source has to become an operating rule. In this package, it means timestamps, nonces or signatures constrain replay windows. The practical action is to monitor clock drift and monotonic state. The unresolved edge is cross-host split brain, so this article keeps that uncertainty visible instead of turning it into a safety claim, reward claim, licensing claim, future-availability claim or product endorsement.

For a reader or operator, freshness should be recorded before funds, account access, wallet recovery, API order flow, whitelists, identity checks, custody decisions, cross-chain transfers or tokenized-asset decisions become material. Good evidence is non-secret.

5. Withdrawal risk

Withdrawal risk is the part of the decision where a public source has to become an operating rule. In this package, it means trading keys and withdrawal keys have different blast radius. The practical action is to avoid withdrawal permission unless required and reviewed. The unresolved edge is private product permissions, so this article keeps that uncertainty visible instead of turning it into a safety claim, reward claim, licensing claim, future-availability claim or product endorsement.

For a reader or operator, withdrawal risk should be recorded before funds, account access, wallet recovery, API order flow, whitelists, identity checks, custody decisions, cross-chain transfers or tokenized-asset decisions become material. Good evidence is non-secret.

6. Audit log

Audit log is the part of the decision where a public source has to become an operating rule. In this package, it means safe logs need IDs and hashes, not secrets. The practical action is to store request IDs, hashes and source channel only. The unresolved edge is venue-side private logs, so this article keeps that uncertainty visible instead of turning it into a safety claim, reward claim, licensing claim, future-availability claim or product endorsement.

For a reader or operator, audit log should be recorded before funds, account access, wallet recovery, API order flow, whitelists, identity checks, custody decisions, cross-chain transfers or tokenized-asset decisions become material. Good evidence is non-secret.

7. Stop rule

Stop rule is the part of the decision where a public source has to become an operating rule. In this package, it means stop if a key's scope, host, expiry or signature evidence is unknown. The practical action is to rotate or disable before retrying automation. The unresolved edge is support investigation timing, so this article keeps that uncertainty visible instead of turning it into a safety claim, reward claim, licensing claim, future-availability claim or product endorsement.

Known Unknowns

• hidden account flags
• NAT and proxy changes
• future policy changes
• cross-host split brain
• private product permissions
• venue-side private logs
• support investigation timing

Practical Takeaway

The safe version of this package stays exact. NexuAlpha's current API-key radar finds that exchange authentication language is not interchangeable across venues. Binance documents request security for signed endpoints, Coinbase documents CDP and Exchange authentication, OKX documents API key security and REST authentication inside its API guide, MEXC documents Spot API key requirements and IP whitelist guidance, and Kraken documents Spot REST authentication. The decision outcome is to compare permission scope, IP binding, key expiry, timestamp windows, nonce or signature freshness, withdrawal permission and non-secret audit logging before any bot shares credentials across venues. The user outcome is a documented decision boundary and a stop rule, not a promise that a venue, transfer, API, custody path, tokenized asset, stablecoin metric or onboarding flow will work under every future condition.