One sign-in for people and their agents
Zanii ID is an OpenID Connect provider where every privileged action, every consent and every delegation to an AI agent is a signed receipt on a public, anchored ledger. Who allowed it, who did it, and proof a third party can check.
Register your organization Developer documentationIntegrate
Standard OAuth 2.1 and OIDC; SDKs for Python and TypeScript with FastAPI, Express and Next helpers.
pip install zanii-id npm install @zanii-id/sdkGetting started · API reference · Discovery
Agents
Client credentials, token exchange that names the agent acting for a person, device flow, DPoP, and agent-to-agent login with mutual screening.
The registry entry for this provider's own agentProof, not promises
The rulebook every action is stamped with, the build that ran, the ledger checkpoints this provider witnessed, and its co-signatures.
Constitution · Build · Witness · Co-signaturesWhere your data goes
The hosting region as the cloud reports it, the declared sub-processors, and a verdict over every recorded transfer.
Sovereignty declaration · Privacy · TermsAlready using an app that signs in with Zanii ID? Start from that app; it brings you here. Manage your own account at /ui/account after signing in. Questions: info@zanii.agency.