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Universal Profile

Manage LUKSO Universal Profiles — identity, permissions, tokens, blockchain operations.

Rating
4.4 (428 reviews)
Downloads
10,760 downloads
Version
1.0.0

Overview

Manage LUKSO Universal Profiles — identity, permissions, tokens, blockchain operations.

Complete Documentation

View Source →

Universal Profile Skill

Authorize your bot: create a profile at my.universalprofile.cloud, generate a controller key, authorize via Authorization UI.

Core Concepts

  • UP (Universal Profile) = smart contract account (LSP0/ERC725Account). This is the on-chain identity.
  • KeyManager (LSP6) = access control. Controllers have permission bitmasks.
  • Controller = EOA with permissions to act on behalf of the UP.
  • All calls to external contracts MUST route through UP via execute() so msg.sender = UP address.
  • Exception: setData()/setDataBatch() can be called directly on UP (checks permissions internally).

Execution Models

Direct (all chains — controller pays gas)

text
Controller → UP.execute(operation, target, value, data) → Target
The controller calls execute() directly on the UP contract. The UP internally verifies permissions via its KeyManager (LSP20 lsp20VerifyCall). Do NOT call the KeyManager's execute() function directly. Always call the UP.

Gasless Relay (LUKSO ONLY — chains 42/4201)

text
Controller signs LSP25 → Relay API submits → KeyManager.executeRelayCall() → UP
The controller signs a message, then the LUKSO relay service submits the transaction. Do NOT call executeRelayCall() yourself — the relay API does this.

⚠️ CRITICAL: The relay/gasless option exists ONLY on LUKSO mainnet (42) and testnet (4201). On Base, Ethereum, and all other chains, the controller must hold native ETH and pay gas directly. There is no gasless alternative.

Typical gas costs: LUKSO ~free via relay, Base ~$0.001-0.01/tx, Ethereum ~$0.10-1.00/tx.

Networks

ChainIDRPCExplorerRelayToken
LUKSO42https://42.rpc.thirdweb.comhttps://explorer.lukso.networkhttps://relayer.mainnet.lukso.network/apiLYX
LUKSO Testnet4201https://rpc.testnet.lukso.networkhttps://explorer.testnet.lukso.networkhttps://relayer.testnet.lukso.network/apiLYXt
Base8453https://mainnet.base.orghttps://basescan.orgETH
Ethereum1https://eth.llamarpc.comhttps://etherscan.ioETH

CLI

text
up status                                      # Config, keys, connectivity
up profile info [<address>] [--chain <chain>]  # Profile details
up profile configure <address> [--chain lukso]  # Save UP for use
up key generate [--save] [--password <pw>]     # Generate controller keypair
up permissions encode <perm1> [<perm2> ...]    # Encode to bytes32
up permissions decode <hex>                    # Decode to names
up permissions presets                         # List presets
up authorize url [--permissions <preset|hex>]  # Generate auth URL
up quota                                       # Check relay gas quota (LUKSO only)

Presets: read-only 🟢 | token-operator 🟡 | nft-trader 🟡 | defi-trader 🟠 | profile-manager 🟡 | full-access 🔴

Credentials

Config lookup order: UP_CREDENTIALS_PATH env → ~/.openclaw/universal-profile/config.json~/.clawdbot/universal-profile/config.json

Key lookup order: UP_KEY_PATH env → ~/.openclaw/credentials/universal-profile-key.json~/.clawdbot/credentials/universal-profile-key.json

Canonical path for new credentials: ~/.openclaw/credentials/universal-profile-key.json

Skill config path: ~/.openclaw/skills/universal-profile/config.json

Expected JSON format:

json
{
  "universalProfile": {
    "address": "0xYourUniversalProfileAddress"
  },
  "controller": {
    "address": "0xYourControllerAddress",
    "privateKey": "0xYourPrivateKey"
  }
}

Key file permissions: chmod 600. Keys loaded only for signing, then cleared. The skill warns if credential files are readable by group/others.

Permissions (bytes32 BitArray)

PermissionHexRiskNotes
CHANGEOWNER0x01🔴
ADDCONTROLLER0x02🟠
EDITPERMISSIONS0x04🟠
ADDEXTENSIONS0x08🟡
CHANGEEXTENSIONS0x10🟡
ADDUNIVERSALRECEIVERDELEGATE0x20🟡
CHANGEUNIVERSALRECEIVERDELEGATE0x40🟡
REENTRANCY0x80🟡
SUPER_TRANSFERVALUE0x0100🟠Any recipient
TRANSFERVALUE0x0200🟡AllowedCalls only
SUPER_CALL0x0400🟠Any contract
CALL0x0800🟡AllowedCalls only
SUPER_STATICCALL0x1000🟢
STATICCALL0x2000🟢
SUPER_DELEGATECALL0x4000🔴
DELEGATECALL0x8000🔴
DEPLOY0x010000🟡
SUPER_SETDATA0x020000🟠Any key
SETDATA0x040000🟡AllowedERC725YDataKeys only
ENCRYPT0x080000🟢
DECRYPT0x100000🟢
SIGN0x200000🟢
EXECUTE_RELAY_CALL0x400000🟢
SUPER variants = unrestricted. Regular = restricted to AllowedCalls/AllowedERC725YDataKeys. Prefer restricted.

Transactions

Direct Execution (all chains)

javascript
// Controller calls UP.execute() directly — works on LUKSO, Base, Ethereum
const provider = new ethers.JsonRpcProvider(rpcUrl);  // use correct RPC for chain
const wallet = new ethers.Wallet(controllerPrivateKey, provider);
const up = new ethers.Contract(upAddress, ['function execute(uint256,address,uint256,bytes) payable returns (bytes)'], wallet);
await (await up.execute(0, recipient, ethers.parseEther('0.01'), '0x')).wait();

Gasless Relay (LUKSO only)

LSP25 Relay Signature — EIP-191 v0, do NOT use signMessage():

javascript
const encoded = ethers.solidityPacked(
  ['uint256','uint256','uint256','uint256','uint256','bytes'],
  [25, chainId, nonce, validityTimestamps, msgValue, payload]
);
const prefix = new Uint8Array([0x19, 0x00]);
const msg = new Uint8Array([...prefix, ...ethers.getBytes(kmAddress), ...ethers.getBytes(encoded)]);
const signature = ethers.Signature.from(new ethers.SigningKey(privateKey).sign(ethers.keccak256(msg))).serialized;

Relay API:

text
POST https://relayer.mainnet.lukso.network/api/execute
{ "address": "0xUP", "transaction": { "abi": "0xpayload", "signature": "0x...", "nonce": 0, "validityTimestamps": "0x0" } }

The payload for relay calls is the full UP.execute(...) calldata. The relay service calls KeyManager.executeRelayCall() — you never call the KM directly.

For setData via relay, the payload is the setData(...) calldata (NOT wrapped in execute()).

Nonce channels: getNonce(controller, channelId) — same channel = sequential, different = parallel. Validity timestamps: (startTimestamp << 128) | endTimestamp. Use 0 for no restriction.

Cross-Chain Deployment (LSP23)

UPs can be redeployed at the same address on other chains by replaying the original LSP23 factory calldata.

Factory & Implementations (identical addresses on LUKSO, Base, Ethereum)

ContractAddress
LSP23 Factory0x2300000A84D25dF63081feAa37ba6b62C4c89a30
UniversalProfileInit v0.14.00x3024D38EA2434BA6635003Dc1BDC0daB5882ED4F
LSP6KeyManagerInit v0.14.00x2Fe3AeD98684E7351aD2D408A43cE09a738BF8a4
PostDeploymentModule0x000000000066093407b6704B89793beFfD0D8F00

Workflow

  • Retrieve original deployment calldata: node commands/cross-chain-deploy-data.js [--verify]
  • Fund controller with ETH on target chain
  • Submit same calldata to factory: wallet.sendTransaction({ to: factoryAddress, data: calldata, value: 0n })
  • Authorize controller on new chain via Authorization UI (permissions are per-chain)

Limitations

  • Legacy UPs (pre-LSP23, old lsp-factory) have no deployment events
  • Determinism requires identical salt + implementations + init data

LSP Ecosystem

LSPInterface IDNamePurpose
LSP00x24871b3dERC725AccountSmart contract account (UP)
LSP10x6bb56a14UniversalReceiverNotification hooks
LSP2ERC725Y JSON SchemaKey encoding
LSP3Profile MetadataName, avatar, links, tags
LSP4Digital Asset MetadataToken name, symbol, type
LSP5ReceivedAssetsTracks owned tokens/NFTs
LSP60x23f34c62KeyManagerPermission-based access control
LSP70xc52d6008DigitalAssetFungible tokens (like ERC20)
LSP80x3a271706IdentifiableDigitalAssetNFTs (bytes32 token IDs)
LSP90x28af17e6VaultSub-account for asset segregation
LSP140x94be5999Ownable2StepTwo-step ownership transfer
LSP250x5ac79908ExecuteRelayCallGasless meta-transactions (LUKSO only)
LSP260x2b299ceaFollowerSystemOn-chain follow/unfollow
LSP28TheGridCustomizable profile grid layouts
Full ABIs, interface IDs, and ERC725Y data keys in lib/constants.js.

LSP26 Follow/Unfollow

Contract: 0xf01103E5a9909Fc0DBe8166dA7085e0285daDDcA (LUKSO mainnet).

MUST route through UP via execute() — never call directly from controller.

javascript
const followData = lsp26Iface.encodeFunctionData('follow', [targetAddress]);
// Direct: km.execute(up.encodeFunctionData('execute', [0, LSP26_ADDR, 0, followData]))
// Relay: sign + submit via relay API

VerifiableURI (LSP2)

Format: 0x + 00006f357c6a0020 (8-byte header) + keccak256hash (32 bytes) + url as UTF-8 hex

Header = verificationMethod(2) + hashFunction(4=keccak256(utf8)) + hashLength(2=0x0020).

Decoding: skip 80 hex chars (2 + 8 + 4 + 64 + 2 prefix), rest = UTF-8 URL.

Common mistakes: forgetting 0020 hash length bytes, not pinning IPFS before on-chain tx, hash mismatch from re-serialization.

LSP3 Profile Update Procedure

  • Read current: getData(0x5ef83ad9559033e6e941db7d7c495acdce616347d28e90c7ce47cbfcfcad3bc5) → decode VerifiableURI → fetch JSON
  • Modify JSON
  • Use { verification: { method: "keccak256(bytes)", data: "0x..." }, url: "ipfs://..." } for images
  • Pin images + JSON to IPFS, verify accessible via gateway
  • Compute keccak256(exactJsonBytes), encode VerifiableURI
  • setData(LSP3_KEY, verifiableUri) from controller
  • Verify: read back, decode, fetch, confirm
LSP3 key: 0x5ef83ad9559033e6e941db7d7c495acdce616347d28e90c7ce47cbfcfcad3bc5 LSP28 key: 0x724141d9918ce69e6b8afcf53a91748466086ba2c74b94cab43c649ae2ac23ff

LSP28 TheGrid

Grid layout JSON at LSP28 key as VerifiableURI.

json
{ "LSP28TheGrid": [{ "title": "My Grid", "gridColumns": 2, "visibility": "public",
  "grid": [
    { "width": 1, "height": 1, "type": "TEXT", "properties": { "title": "Hi", "text": "...", "backgroundColor": "#1a1a2e", "textColor": "#fff" } },
    { "width": 2, "height": 2, "type": "IMAGES", "properties": { "type": "grid", "images": ["https://..."] } },
    { "width": 1, "height": 1, "type": "X", "properties": { "type": "post", "username": "handle", "id": "tweetId", "theme": "dark" } }
  ]
}] }
Types: IFRAME, TEXT, IMAGES, X, INSTAGRAM, QR_CODE, ELFSIGHT. gridColumns 2–4, width/height 1–3.

Forever Moments (LUKSO only)

Social NFT platform. Agent API at https://www.forevermoments.life/api/agent/v1.

3-Step Relay Flow

  • BuildPOST /moments/build-mint (or /collections/build-join, etc.) → get derived.upExecutePayload
  • PreparePOST /relay/prepare with { upAddress, controllerAddress, payload } → get hashToSign, nonce
  • Sign & Submit — sign hashToSign as RAW DIGEST (SigningKey.sign(), NOT signMessage()) → POST /relay/submit

Endpoints

  • /collections/build-join — join collection
  • /collections/build-create + /collections/finalize-create — create collection (2-step)
  • /moments/build-mint — mint Moment NFT
  • /relay/prepare + /relay/submit — relay flow
  • /api/pinata (NOT /api/agent/v1/pinata) — pin file to IPFS (multipart)

Metadata (LSP4)

json
{ "LSP4Metadata": { "name": "Title", "description": "...",
  "images": [[{ "width": 1024, "height": 1024, "url": "ipfs://Qm..." }]],
  "icon": [{ "width": 1024, "height": 1024, "url": "ipfs://Qm..." }],
  "tags": ["tag1"], "createdAt": "2026-02-08T16:30:00.000Z" } }

Known collection "Art by the Machine": 0x439f6793b10b0a9d88ad05293a074a8141f19d77

URLs

  • Collection: https://www.forevermoments.life/collections/
  • Moment: https://www.forevermoments.life/moments/
  • Profile: https://www.forevermoments.life/profile/

Error Codes

CodeCause
UP_PERMISSION_DENIEDController lacks required permission
UP_RELAY_FAILEDRelay error — check quota (LUKSO only)
UP_INVALID_SIGNATUREWrong chainId, used nonce, or expired timestamps
UP_QUOTA_EXCEEDEDMonthly relay quota exhausted (LUKSO only)
UP_NOT_AUTHORIZEDNot a controller — use Authorization UI

Security

  • Grant minimum permissions. Prefer CALL over SUPER_CALL.
  • Use AllowedCalls/AllowedERC725YDataKeys to restrict.
  • Avoid DELEGATECALL and CHANGEOWNER unless necessary.
  • Never log/print/transmit private keys.
  • Test on testnet (4201) first.
  • config set restricted to safe keys only.

Dependencies

Node.js 18+, ethers.js v6, viem.

Links

LUKSO Docs · Universal Everything · LSP6 Spec · Authorization UI

Profile URLs: always use https://universaleverything.io/

Installation

Terminal bash

openclaw install universal-profile
    
Copied!

💻Code Examples

up quota # Check relay gas quota (LUKSO only)

up-quota--check-relay-gas-quota-lukso-only.txt
Presets: `read-only` 🟢 | `token-operator` 🟡 | `nft-trader` 🟡 | `defi-trader` 🟠 | `profile-manager` 🟡 | `full-access` 🔴

## Credentials

Config lookup order: `UP_CREDENTIALS_PATH` env → `~/.openclaw/universal-profile/config.json` → `~/.clawdbot/universal-profile/config.json`

Key lookup order: `UP_KEY_PATH` env → `~/.openclaw/credentials/universal-profile-key.json` → `~/.clawdbot/credentials/universal-profile-key.json`

Canonical path for new credentials: `~/.openclaw/credentials/universal-profile-key.json`

Skill config path: `~/.openclaw/skills/universal-profile/config.json`

Expected JSON format:

}

.txt
Key file permissions: `chmod 600`. Keys loaded only for signing, then cleared. The skill warns if credential files are readable by group/others.

## Permissions (bytes32 BitArray)

| Permission | Hex | Risk | Notes |
|---|---|---|---|
| CHANGEOWNER | 0x01 | 🔴 | |
| ADDCONTROLLER | 0x02 | 🟠 | |
| EDITPERMISSIONS | 0x04 | 🟠 | |
| ADDEXTENSIONS | 0x08 | 🟡 | |
| CHANGEEXTENSIONS | 0x10 | 🟡 | |
| ADDUNIVERSALRECEIVERDELEGATE | 0x20 | 🟡 | |
| CHANGEUNIVERSALRECEIVERDELEGATE | 0x40 | 🟡 | |
| REENTRANCY | 0x80 | 🟡 | |
| SUPER_TRANSFERVALUE | 0x0100 | 🟠 | Any recipient |
| TRANSFERVALUE | 0x0200 | 🟡 | AllowedCalls only |
| SUPER_CALL | 0x0400 | 🟠 | Any contract |
| CALL | 0x0800 | 🟡 | AllowedCalls only |
| SUPER_STATICCALL | 0x1000 | 🟢 | |
| STATICCALL | 0x2000 | 🟢 | |
| SUPER_DELEGATECALL | 0x4000 | 🔴 | |
| DELEGATECALL | 0x8000 | 🔴 | |
| DEPLOY | 0x010000 | 🟡 | |
| SUPER_SETDATA | 0x020000 | 🟠 | Any key |
| SETDATA | 0x040000 | 🟡 | AllowedERC725YDataKeys only |
| ENCRYPT | 0x080000 | 🟢 | |
| DECRYPT | 0x100000 | 🟢 | |
| SIGN | 0x200000 | 🟢 | |
| EXECUTE_RELAY_CALL | 0x400000 | 🟢 | |

SUPER variants = unrestricted. Regular = restricted to AllowedCalls/AllowedERC725YDataKeys. Prefer restricted.

## Transactions

### Direct Execution (all chains)

await (await up.execute(0, recipient, ethers.parseEther('0.01'), '0x')).wait();

await-await-upexecute0-recipient-ethersparseether001-0xwait.txt
### Gasless Relay (LUKSO only)

**LSP25 Relay Signature — EIP-191 v0, do NOT use `signMessage()`:**

{ "address": "0xUP", "transaction": { "abi": "0xpayload", "signature": "0x...", "nonce": 0, "validityTimestamps": "0x0" } }

-address-0xup-transaction--abi-0xpayload-signature-0x-nonce-0-validitytimestamps-0x0--.txt
The `payload` for relay calls is the full `UP.execute(...)` calldata. The relay service calls `KeyManager.executeRelayCall()` — you never call the KM directly.

For `setData` via relay, the payload is the `setData(...)` calldata (NOT wrapped in `execute()`).

Nonce channels: `getNonce(controller, channelId)` — same channel = sequential, different = parallel.
Validity timestamps: `(startTimestamp << 128) | endTimestamp`. Use `0` for no restriction.

## Cross-Chain Deployment (LSP23)

UPs can be redeployed at the same address on other chains by replaying the original LSP23 factory calldata.

### Factory & Implementations (identical addresses on LUKSO, Base, Ethereum)

| Contract | Address |
|---|---|
| LSP23 Factory | `0x2300000A84D25dF63081feAa37ba6b62C4c89a30` |
| UniversalProfileInit v0.14.0 | `0x3024D38EA2434BA6635003Dc1BDC0daB5882ED4F` |
| LSP6KeyManagerInit v0.14.0 | `0x2Fe3AeD98684E7351aD2D408A43cE09a738BF8a4` |
| PostDeploymentModule | `0x000000000066093407b6704B89793beFfD0D8F00` |

### Workflow
1. Retrieve original deployment calldata: `node commands/cross-chain-deploy-data.js <upAddress> [--verify]`
2. Fund controller with ETH on target chain
3. Submit same calldata to factory: `wallet.sendTransaction({ to: factoryAddress, data: calldata, value: 0n })`
4. Authorize controller on new chain via [Authorization UI](https://openclaw.universalprofile.cloud) (permissions are per-chain)

### Limitations
- Legacy UPs (pre-LSP23, old lsp-factory) have no deployment events
- Determinism requires identical salt + implementations + init data

## LSP Ecosystem

| LSP | Interface ID | Name | Purpose |
|---|---|---|---|
| LSP0 | 0x24871b3d | ERC725Account | Smart contract account (UP) |
| LSP1 | 0x6bb56a14 | UniversalReceiver | Notification hooks |
| LSP2 | — | ERC725Y JSON Schema | Key encoding |
| LSP3 | — | Profile Metadata | Name, avatar, links, tags |
| LSP4 | — | Digital Asset Metadata | Token name, symbol, type |
| LSP5 | — | ReceivedAssets | Tracks owned tokens/NFTs |
| LSP6 | 0x23f34c62 | KeyManager | Permission-based access control |
| LSP7 | 0xc52d6008 | DigitalAsset | Fungible tokens (like ERC20) |
| LSP8 | 0x3a271706 | IdentifiableDigitalAsset | NFTs (bytes32 token IDs) |
| LSP9 | 0x28af17e6 | Vault | Sub-account for asset segregation |
| LSP14 | 0x94be5999 | Ownable2Step | Two-step ownership transfer |
| LSP25 | 0x5ac79908 | ExecuteRelayCall | Gasless meta-transactions (LUKSO only) |
| LSP26 | 0x2b299cea | FollowerSystem | On-chain follow/unfollow |
| LSP28 | — | TheGrid | Customizable profile grid layouts |

Full ABIs, interface IDs, and ERC725Y data keys in `lib/constants.js`.

## LSP26 Follow/Unfollow

Contract: `0xf01103E5a9909Fc0DBe8166dA7085e0285daDDcA` (LUKSO mainnet).

MUST route through UP via `execute()` — never call directly from controller.

// Relay: sign + submit via relay API

-relay-sign--submit-via-relay-api.txt
## VerifiableURI (LSP2)

Format: `0x` + `00006f357c6a0020` (8-byte header) + `keccak256hash` (32 bytes) + `url as UTF-8 hex`

Header = verificationMethod(2) + hashFunction(4=keccak256(utf8)) + hashLength(2=0x0020).

Decoding: skip 80 hex chars (2 + 8 + 4 + 64 + 2 prefix), rest = UTF-8 URL.

**Common mistakes:** forgetting `0020` hash length bytes, not pinning IPFS before on-chain tx, hash mismatch from re-serialization.

### LSP3 Profile Update Procedure
1. Read current: `getData(0x5ef83ad9559033e6e941db7d7c495acdce616347d28e90c7ce47cbfcfcad3bc5)` → decode VerifiableURI → fetch JSON
2. Modify JSON
3. Use `{ verification: { method: "keccak256(bytes)", data: "0x..." }, url: "ipfs://..." }` for images
4. Pin images + JSON to IPFS, verify accessible via gateway
5. Compute `keccak256(exactJsonBytes)`, encode VerifiableURI
6. `setData(LSP3_KEY, verifiableUri)` from controller
7. Verify: read back, decode, fetch, confirm

LSP3 key: `0x5ef83ad9559033e6e941db7d7c495acdce616347d28e90c7ce47cbfcfcad3bc5`
LSP28 key: `0x724141d9918ce69e6b8afcf53a91748466086ba2c74b94cab43c649ae2ac23ff`

## LSP28 TheGrid

Grid layout JSON at LSP28 key as VerifiableURI.

}] }

-.txt
Types: `IFRAME`, `TEXT`, `IMAGES`, `X`, `INSTAGRAM`, `QR_CODE`, `ELFSIGHT`. gridColumns 2–4, width/height 1–3.

## Forever Moments (LUKSO only)

Social NFT platform. Agent API at `https://www.forevermoments.life/api/agent/v1`.

### 3-Step Relay Flow
1. **Build** — `POST /moments/build-mint` (or `/collections/build-join`, etc.) → get `derived.upExecutePayload`
2. **Prepare** — `POST /relay/prepare` with `{ upAddress, controllerAddress, payload }` → get `hashToSign`, `nonce`
3. **Sign & Submit** — sign `hashToSign` as RAW DIGEST (`SigningKey.sign()`, NOT `signMessage()`) → `POST /relay/submit`

### Endpoints
- `/collections/build-join` — join collection
- `/collections/build-create` + `/collections/finalize-create` — create collection (2-step)
- `/moments/build-mint` — mint Moment NFT
- `/relay/prepare` + `/relay/submit` — relay flow
- `/api/pinata` (NOT `/api/agent/v1/pinata`) — pin file to IPFS (multipart)

### Metadata (LSP4)
example.txt
up status                                      # Config, keys, connectivity
up profile info [<address>] [--chain <chain>]  # Profile details
up profile configure <address> [--chain lukso]  # Save UP for use
up key generate [--save] [--password <pw>]     # Generate controller keypair
up permissions encode <perm1> [<perm2> ...]    # Encode to bytes32
up permissions decode <hex>                    # Decode to names
up permissions presets                         # List presets
up authorize url [--permissions <preset|hex>]  # Generate auth URL
up quota                                       # Check relay gas quota (LUKSO only)
example.json
{
  "universalProfile": {
    "address": "0xYourUniversalProfileAddress"
  },
  "controller": {
    "address": "0xYourControllerAddress",
    "privateKey": "0xYourPrivateKey"
  }
}
example.js
// Controller calls UP.execute() directly — works on LUKSO, Base, Ethereum
const provider = new ethers.JsonRpcProvider(rpcUrl);  // use correct RPC for chain
const wallet = new ethers.Wallet(controllerPrivateKey, provider);
const up = new ethers.Contract(upAddress, ['function execute(uint256,address,uint256,bytes) payable returns (bytes)'], wallet);
await (await up.execute(0, recipient, ethers.parseEther('0.01'), '0x')).wait();
example.js
const encoded = ethers.solidityPacked(
  ['uint256','uint256','uint256','uint256','uint256','bytes'],
  [25, chainId, nonce, validityTimestamps, msgValue, payload]
);
const prefix = new Uint8Array([0x19, 0x00]);
const msg = new Uint8Array([...prefix, ...ethers.getBytes(kmAddress), ...ethers.getBytes(encoded)]);
const signature = ethers.Signature.from(new ethers.SigningKey(privateKey).sign(ethers.keccak256(msg))).serialized;

Tags

#coding_agents-and-ides

Quick Info

Category Development
Model Claude 3.5
Complexity One-Click
Author frozeman
Last Updated 3/10/2026
🚀
Optimized for
Claude 3.5
🧠

Ready to Install?

Get started with this skill in seconds

openclaw install universal-profile