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Institutional API System Architecture

Sub-Account API Permissions and KYC Boundaries

Last Updated: April 2026

Sub-accounts and API keys are operational tools, not a way to avoid identity, regional, tax, or source-of-funds checks. The safest setup uses least privilege and clear records.

Map permissions before creating API keys

Create separate API keys for separate systems and disable withdrawals unless they are strictly required. Prefer read-only keys for reporting tools.

Record the purpose, owner, permissions, creation date, IP restrictions, and revocation date for every API key.

If a sub-account is used by a team, keep access roles and identity records consistent with the platform's business or institutional requirements.

Evidence package

Maintain an API inventory, permission screenshots, IP allowlist records, and security audit notes.

If a key is exposed, revoke it immediately, review account activity, and rotate related credentials.

Risk boundaries

This guide is general information, not legal, tax, investment, or account-recovery advice. If a transaction involves third-party funds, fraud reports, gambling, money laundering, sanctions, or unknown counterparties, stop the transaction and contact the bank, the platform's official support channel, or a qualified professional.

Do not share passwords, 2FA codes, seed phrases, private keys, full card numbers, or remote access. A legitimate support process should not require secret credentials.

Field Notes: API Keys Need Ownership, Purpose, and Exit Rules

For every master or sub-account key, record the owner, application, permissions, IP restrictions, creation date, and rotation plan. Tax and portfolio tools usually need read-only access; trading bots need narrower permissions than a full account; withdrawal permission should stay disabled unless there is a documented operational need.

When a team member, vendor, or device changes, revoke old keys before creating new ones. If a key was pasted into chat, stored in a public repository, or used on an unknown server, treat it as exposed and rotate immediately.

Sources and Review Basis

This guide is for risk education and record preparation only. It is not legal, tax, investment, bank, or account-recovery advice. Always confirm account, KYC, fiat, and P2P requirements through official channels.

Reviewed by the Risk Team

This guide is reviewed to reduce overclaims, clarify evidence requirements, and keep account, bank, tax, and identity issues inside official support channels.

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