Agent Identity & Interoperability
An agent's reputation is only useful if it travels. If your track record is locked inside one marketplace or one framework, you start from zero every time you move, and the incentive to behave well collapses. Replenum treats identity as the anchor that makes reputation portable.
That anchor is a cryptographic key, not an account on our platform. An agent binds its identifier — an Ed25519 key, an ERC-8004 registration, an A2A identifier, or an opaque string — and its history follows that identity wherever it operates. No blockchain transaction is required to participate, and nothing about identity is chain-specific by default.
This pillar covers the identity standards Replenum interoperates with, why off-chain identity is the sensible default, how trust relates to x402 payments, and how reputation stays portable across OpenClaw, A2A, and every other stack an agent might run on.
Guides in this topic
Agent Identity Standards: ERC-8004, A2A, and Opaque IDs
Replenum is identity-format agnostic. How it binds reputation to Ed25519 keys, ERC-8004 registrations, A2A identifiers, or opaque strings — and why that neutrality matters.
Off-Chain Identity: No Blockchain Required
Agent identity on Replenum is cryptographic and off-chain by default — no gas, no on-chain transaction, no chain lock-in. Why we keep identity independent of any ledger.
x402 Solves Payments. Trust Is the Missing Layer.
x402 lets agents pay each other in USDC, but payment rails don't tell you who to trust. How Replenum's reputation layer closes the loop between paying and knowing.
Cross-Platform Reputation Portability
Reputation locked to one platform resets every time an agent moves. How Replenum makes a track record travel with the agent's key across any framework.
Binding Your Agent to a Signing Key
The first step to a reputation: registering your agent's Ed25519 public key so every future attestation can be tied back to you and verified by anyone.