[jxom]

Adds serialization for configurable accounts (TIP-1107) and a keyAuthorization option for access key accounts to viem/tempo, so apps that store accounts or access keys (such as Tempo ID's @tempoxyz/id) stop reimplementing them.

• Account.serialize(account) returns { address, config? } (config in RPC format, JSON-safe).
• Account.deserialize(value, { credentials?, getFn? }) rebuilds the account without a request. A passkey among credentials signs as an owner when its public key derives an owner address. A version-zero config must derive address (Account.AddressMismatchError otherwise), and a later version keeps address.
• keyAuthorization on fromSecp256k1/fromP256/fromWebCryptoP256/fromHeadlessWebAuthn/from with access: the account holds the signed authorization and attaches it until the chain registers the access key. No KeyAuthorizationManager is needed. It throws if the authorization is for another access key.

localStorage.setItem('account', JSON.stringify(Account.serialize(account)))
const restored = Account.deserialize(JSON.parse(localStorage.getItem('account')!), { credentials: [passkey] })

const accessKey = Account.fromWebCryptoP256(keyPair, { access: root, keyAuthorization })

Validation: tsc and pnpm test --project tempo --run src/tempo/Account.test.ts (62 tests, 7 new) pass.

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Project	Deployment	Actions	Updated
viem	Ready	Preview	Nov 3, 2026 12:16am UTC

[changeset-bot]

🦋 Changeset detected

Latest commit: 5591c21

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

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viem	Patch

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[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-11-03T00:18:29.873228Z	5591c21	PR opened

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[chatgpt-codex-connector]

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Reviewed commit: 5591c215c7

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[chatgpt-codex-connector]

Validate authorization identity before caching it

When the same P256 public key was authorized with one key type but is reconstructed with another (for example, p256 versus webAuthn), or when the authorization names a different parent account, this address-only check accepts and caches it. The transaction path requires the authorization's key type and named account to match exactly (src/tempo/internal/relay/feePayer.ts:668-690), so the account will attach an unusable authorization and its first transaction will fail; validate keyAuthorization.type and any keyAuthorization.account against parameters.keyType and parentAddress here.

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[chatgpt-codex-connector]

Add site docs for the new persistence APIs

A repo-wide search of site/pages and site/vocs.config.ts finds the existing Account.fromConfig page and sidebar entry, but no page or navigation entry for either new Account.serialize or Account.deserialize API. This leaves the newly exported persistence workflow undiscoverable from the public Tempo documentation; add the required account subpages and sidebar wiring.

AGENTS.md reference: AGENTS.md:L106-L107

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[chatgpt-codex-connector]

Add type tests for the new public signatures

This commit adds public serialization types and threads keyAuthorization through inference-heavy conditional account constructors, but it does not update the existing src/tempo/Account.test-d.ts. The runtime tests cannot verify that keyAuthorization is accepted only with access, that those calls still infer AccessKeyAccount, or that the new serialized/deserialized shapes remain usable through the public entrypoint; add focused expectTypeOf and rejection cases for these signatures.

AGENTS.md reference: AGENTS.md:L72-L76

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