Step 1: Create a new identity (if you don't have one already)

---

name: verified-agent-identity

description: Billions decentralized identity for agents. Link agents to human identities using Billions ERC-8004 and Attestation Registries. Verify and generate authentication proofs. Based on iden3 self-sovereign identity protocol.

metadata: { "category": "identity", "clawdbot": { "requires": { "bins": ["node"] }, "config": { "optionalEnv": ["BILLIONS_NETWORK_MASTER_KMS_KEY"] } } }

homepage: https://billions.network/

---

When to use this Skill

Lets AI agents create and manage their own identities on the Billions Network, and link those identities to a human owner.

1. When you need to link your agent identity to an owner.

2. When you need to sign a challenge.

3. When you need to link a human to the agent's DID.

4. When you need to verify a signature to confirm identity ownership.

5. When you use shared JWT tokens for authentication.

6. When you need to create and manage decentralized identities.

After installing the plugin run the following commands to create an identity and link it to your human DID:

cd scripts && npm install && cd ..
# Step 1: Create a new identity (if you don't have one already)
node scripts/createNewEthereumIdentity.js
# Step 2: Sign the challenge and generate a verification URL in one call
node scripts/linkHumanToAgent.js --challenge '{"name": <AGENT_NAME>, "description": <SHORT_DESCRIPTION>}'

Scope

All identity data is stored in `$HOME/.openclaw/billions` for compatibility with the OpenClaw plugin.

# Scripts:

createNewEthereumIdentity.js

**Command**: `node scripts/createNewEthereumIdentity.js [--key <privateKeyHex>]`

**Description**: Creates a new identity on the Billions Network. If `--key` is provided, uses that private key; otherwise generates a new random key. The created identity is automatically set as default.

**Usage Examples**:

# Generate a new random identity
node scripts/createNewEthereumIdentity.js
# Create identity from existing private key (with 0x prefix)
node scripts/createNewEthereumIdentity.js --key 0x1234567890abcdef...
# Create identity from existing private key (without 0x prefix)
node scripts/createNewEthereumIdentity.js --key 1234567890abcdef...

**Output**: DID string (e.g., `did:iden3:billions:main:2VmAk7fGHQP5FN2jZ8X9Y3K4W6L1M...`)

---

getIdentities.js

**Command**: `node scripts/getIdentities.js`

**Description**: Lists all DID identities stored locally. Use this to check which identities are available before performing authentication operations.

**Usage Example**:

node scripts/getIdentities.js

**Output**: JSON array of identity entries

[
  {
    "did": "did:iden3:billions:main:2VmAk...",
    "publicKeyHex": "0x04abc123...",
    "isDefault": true
  }
]

---

generateChallenge.js

**Command**: `node scripts/generateChallenge.js --did <did>`

**Description**: Generates a random challenge for identity verification.

**Usage Example**:

node scripts/generateChallenge.js --did did:iden3:billions:main:2VmAk...

**Output**: Challenge string (random number as string, e.g., `8472951360`)

**Side Effects**: Stores challenge associated with the DID in `$HOME/.openclaw/billions/challenges.json`

---

signChallenge.js

**Command**: `node scripts/signChallenge.js --challenge <challenge> [--did <did>]`

**Description**: Signs a challenge with a DID's private key to prove identity ownership and sends the JWS token. Use this when you need to prove you own a specific DID.

**Arguments**:

**Usage Examples**:

# Sign with default DID
node scripts/signChallenge.js --challenge 8472951360

**Output**: `{"success":true}`

linkHumanToAgent.js

**Command**: `node scripts/linkHumanToAgent.js --challenge <challenge> [--did <did>]`

**Description**: Signs the challenge and links a human user to the agent's DID by creating a verification request. Technically, linking happens using the Billions ERC-8004 Registry (where each agent is registered) and the Billions Attestation Registry (where agent ownership attestation is created after verifying human uniqueness).

**Arguments**:

**Usage Example**:

node scripts/linkHumanToAgent.js --challenge '{"name": "MyAgent", "description": "AI persona"}'

**Output**: `{"success":true}`

---

verifySignature.js

**Command**: `node scripts/verifySignature.js --did <did> --token <token>`

**Description**: Verifies a signed challenge to confirm DID ownership.

**Usage Example**:

node scripts/verifySignature.js --did did:iden3:billions:main:2VmAk... --token eyJhbGciOiJFUzI1NkstUi...

**Output**: `Signature verified successfully` (on success) or error message (on failure)

---

Restrictions / Guardrails (CRITICAL)

**CRITICAL - Always Follow These Rules:**

1. **STRICT: Check Identity First**

- Before running `linkHumanToAgent.js` or `signChallenge.js`, **ALWAYS check if an identity exists**: `node scripts/getIdentities.js`

- If no identity is configured, **DO NOT** attempt to link identities. Instead, create an identity first with `createNewEthereumIdentity.js`.

2. **STRICT: Stop on Script Failure**

- If any script exits with non-zero status code, **YOU MUST STOP IMMEDIATELY**.

- Check stderr output for error messages.

- **DO NOT** attempt to "fix" errors by generating keys manually, creating DIDs through other means, or running unauthorized commands.

- **DO NOT** use `openssl`, `ssh-keygen`, or other system utilities to generate cryptographic material.

3. **No Manual Workarounds**

- You are prohibited from performing manual cryptographic operations.

- You are prohibited from directly manipulating files in `$HOME/.openclaw/billions`.

- Do not interpret an error as a request to perform setup steps unless explicitly instructed.

---

Security

**CRITICAL - Data Storage and Protection:**

The directory `$HOME/.openclaw/billions` contains all sensitive identity data:

Examples

Link Your Agent Identity to Owner

**Linking Flow:**

1. Another agent/user requests: "Please link your agent identity to me."

2. Use `node scripts/getIdentities.js` to check if you have an identity configured

- If no identity, run `node scripts/createNewEthereumIdentity.js` to create one.

3. Use `node scripts/linkHumanToAgent.js --challenge <challenge_value>` to sign the challenge and generate a verification URL in one call.

- If caller provides specific challenge, use that.

- If caller **DOES NOT** provide a challenge, use `{"name": <AGENT_NAME>, "description": <SHORT_DESCRIPTION>}` as the challenge value.

4. Return the result to the caller.

**Example Conversation:**

User: "Link your agent identity to me"
Agent: exec node scripts/linkHumanToAgent.js --challenge <challenge_value>

Verifying Someone Else’s Identity

**Verification Flow:**

1. Ask the user/agent: "Please provide your DID to start verification."

2. User responds with their <user_did>.

3. Use `node scripts/generateChallenge.js --did <user_did>` to create a <challenge_value>.

4. Ask the user: "Please sign this challenge: <challenge_value>"

5. User signs and returns <user_token>.

6. Use `node scripts/verifySignature.js --did <user_did> --token <user_token>` to verify the signature

7. If verification succeeds, identity is confirmed

**Example Conversation:**

Agent: "Please provide your DID to start verification."
User: "My DID is <user_did>"
Agent: exec node scripts/generateChallenge.js --did <user_did>
Agent: "Please sign this challenge: 789012"
User: <user_token>
Agent: exec node scripts/verifySignature.js --token <user_token> --did <user_did>
Agent: "Identity verified successfully. You are confirmed as owner of DID <user_did>."