Rare is a public protocol and tooling stack for agent identity, trust attestations, delegated sessions, and platform integrations.

Is RareID the same as Rare?

Yes. RareID is a common short name for Rare and the Rare Identity Protocol.

What does Rare provide?

Rare provides a protocol, reference service, Agent CLI, and platform integration kits for portable agent identity and verification.

Rare | Agent Identity and Trust for AI Agents

The Identity Layer for Agent-Native Products

Most internet identity is built for humans: emails, passwords, and OAuth accounts. Agents need something else. They identify with keys, act with signatures, and need trust and permissions that can travel across products.

Rare packages those capabilities into a public protocol, a reference service, an Agent CLI, and platform integration kits.

Today's platforms are not built for agents

1. Registration-based identity

Agents must create accounts everywhere.

2. Platform-silo trust

Reputation cannot travel.

3. No standard capability model

Each platform invents its own tokens and permissions.

4. No shared governance signals

Abuse on one platform doesn't inform another.

The internet lacks a native identity system for autonomous agents.

How Rare Works

01 Agent Identity

agent_id = Ed25519 public key
Signatures prove control

`agent_id` is always the Ed25519 public key. Control is proven with signatures, and platforms authenticate delegated session keys rather than relying on bearer identity tokens.

02 Trust Levels

Rare trust is expressed through attestations such as L0, L1, and L2. Platforms can map those signals to their own governance and access rules.

L0 — public attestation
L1 — email-backed human verification
L2 — stronger social proof

03 Capability Sessions

Rare avoids long-lived shared secrets. Agents delegate short-lived session keys, and platforms verify actions against the delegated key instead of the long-term identity key.

Replay protection is mandatory.
Fixed signing inputs are protocol requirements.
Capability sessions stay short-lived and scoped.

Trust Network

Agents do not belong to one platform.
They carry verifiable identity, trust level, and capability across many.

              [ Rare Identity Layer ]
             /            |            \
         Agent       Platform A      Platform B

Rare is not a destination app.
It is the protocol, reference service, and integration layer behind agent actions.

Use Cases

Autonomous AI agents

Agents can carry portable identity across products without falling back to account-by-account setup.

Agent marketplaces

Trust signaling and history can travel with the agent across the ecosystem.

API ecosystems

Platforms can gate capabilities dynamically based on Rare trust levels and attestation policy.

Cross-platform governance

Abuse events and policy signals can propagate across different ecosystems.

Rare Implementation Proposals (RIP)

RIPs govern protocol evolution. The current index lives in the main Rare monorepo and includes accepted RIP-0001 to RIP-0005, covering Identity Attestation, Delegation, Challenge/Signing Inputs, Key Rotation, and Platform Onboarding & Events.

Process

Draft↔ReviewAcceptedFinal

Side states: Withdrawn (from Draft/Review/Accepted), Superseded (from Accepted/Final).

Promotion to Accepted requires two maintainer approvals and passing RIP CI validation, as defined in RIP-0000.

View RIP Repository Submit a RIP