Wallet auth in the standards bodies.

Third-party SDK support for a proposed wallet-state interface

ERC-8257 (Agent Tool Registry) defines an open requirement-kind namespace for gating agent tool access. A wallet-state attestation requirement kind proposed in the ERC's review process is now supported in OpenSea's official SDK: cross-chain wallet state, evaluated off-chain, signed, and verified on-chain via the RIP-7212 P-256 precompile.

• @opensea/tool-sdk exports the requirement kind with a typed decoder and documents it in the SDK's known-predicates reference. Proposed May 2026; SDK support re-verified August 2026.
• The reference names insumer-examples as the reference implementation for the predicate.

Draft ERC texts revised following review contributions

• ERC-8291 (SIWE-gated NFT media, August 2026): two draft revisions followed review. The binding grammar now includes first-class syntax for entitlements beyond a single NFT, naming attestations and balance thresholds, plus ERC-20 threshold and ERC-1155 minimum-quantity forms.
• ERC-8210 (Agent Assurance, April 2026): the draft's v2 changelog credits review input on two items, the pre-commitment facts gap and the risk-hook resolution path.
• ERC-8240 (Trust Infrastructure, April to July 2026): the draft adopted methodology-scoped context hashing after a clarifying review exchange, separating per-methodology context from per-call condition identity.
• ERC-8273 (Attestation-Gated Agentic Actions, June 2026): the author accepted and extended a storage-proof-as-evidence design from review, using EIP-1186 proofs so a signed verdict can be rechecked against chain state.

Authored proposals in active protocol review

• UCP pull request 415 (opened May 2026): proposes wallet attestation as an identity-linking mechanism alongside OAuth. A typed provider, JWKS-based offline verification, signed booleans.
• A2A trust signals (opened March 2026): the consolidated five-signal taxonomy for agent trust originates in our authored proposal, including the on-chain credentials and on-chain activity signal types with shared JWKS verification.
• ERC-8183 (agentic commerce hooks): a wallet-state hook implementation (April 2026) in the project's review queue, alongside day-one maintenance of the companion case library.
• x402 (machine payments): co-authored cold-start trust work (February 2026) covering on-chain credential and activity signals, plus an authored extension proposal for self-scaling conditions (June 2026) and signer-authentication proposals.

Merged vocabulary and Internet-Drafts

• Agent governance vocabulary: contributions merged into an external agent-governance specification (first merge April 2026), with ongoing review participation.
• IETF Internet-Draft: wallet state attestation: a formal IETF Internet-Draft describing signed wallet-state attestation, filed with IPR disclosure (May 2026).
• IETF Internet-Draft: environment state: a joint draft extending the attestation shape to environment state, co-authored with an independent implementer (June 2026).