Caliber

@huicom·PokoBlue

Caliber offers four forkable pieces for ERC-8004 agent trust: a signed-attestation gate where a contract verifies an off-chain EIP-712 claim before acting (KYC/identity/general trust-on-chain), the full buyer side of Circle Gateway x402 with Programmable Wallet signing, headers and validity windows, an ERC-8004 indexer reading Identity/Reputation/Validation registry events into Postgres via viem backfill plus WS live, and the MIT @caliber/sdk read/attest/verify TypeScript library. Three Foundry contracts (RatingVerifier, RatingGateway, CaliberEscrow) are deployed on Arc 5042002 with matching broadcast artifacts, alongside a deterministic statistical rating engine, a pgvector semantic router, and a Next.js gated Circle-wallet marketplace.