Token-2022 Integration

Overview

Token-2022 Integration is the application work required to support Solana tokens created with the Token Extensions Program, commonly called Token-2022. It extends the legacy SPL token model with optional mint and account features that can materially change transfer, fee, confidentiality, metadata, or control behavior.

Key risks include unsupported extensions, transfer-fee accounting errors, blocked transfers, confidential or nontransferable tokens, application parsers ignoring extension data, and payment systems crediting amounts that differ from received value. The Token-2022 Integration recovery process should restore access without bypassing the original identity and authorization controls.

A production implementation should detect the token program and enabled extensions, parse extension data, define supported combinations, account for transfer hooks or fees, validate authorities, and test each accepted mint rather than assuming legacy behavior.

Useful measures include extension-detection coverage, unsupported-mint exceptions, transfer-fee variance, failed transfers by extension, parsing errors, and reconciliation differences. Token-2022 Integration is closely connected to SPL Token Integration, Token Extension, and Token Balance Query. For Token-2022 Integration, secrets and tokens should remain outside browser bundles, URLs, ordinary logs, and unprotected configuration.

Evidence for Token-2022 Integration should record the credential or certificate identifier and decision result without retaining the secret itself. Monitoring for Token-2022 Integration should track failed use, unusual scope or audience, expiry, rotation status, and attempts involving revoked credentials.

Least-privilege configuration for Token-2022 Integration should be verified against the operations used by each environment and consuming service. A compromise response for Token-2022 Integration should support rapid revocation, replacement, affected-client identification, and review of prior use. The Token-2022 Integration boundary should identify the principal, credential or key, permitted audience, scope, lifetime, and revocation path.