The best integration SDKs in 2026

Reviewed by Errol Vogt, Site support technician & online learning analyst · original summary · editorial policy

Zapier reviews the best integration SDKs for 2026, walking through the plumbing — OAuth flows, token storage, refresh cycles, secure credential handling — that makes multi-app AI features hard to ship.

Operator takeaway: If you're building AI features that touch several apps, an integration SDK handles the auth and credential plumbing so you don't reinvent it (or leak a token) per integration.

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