An API key authenticates your backend. A session key authenticates an individual AI agent acting within the limits of a specific mandate. It’s how an agent transacts without ever holding your master API key or a wallet’s private key.Session keys are:
Time-bound: created with an explicit expires_in
Velocity-bound: capped by the max_amount / interval set on the parent mandate
Revocable: can be invalidated independently of the mandate that issued them
For flows that require proving an account or agent is a verified, unique, KYC’d entity, OpenFi issues W3C Verifiable Credentials (VC-JWT format), rooted at did:web:openfi.co for issuer identity and did:pkh for wallet-based subjects. See Identity overview.
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