AgentsBank SDK Skill Definition

Version: 1.0.6
Publisher: AgentsBank
Contact: [email protected]
Status: 🟢 Public Release - Production Ready

🎯 PURPOSE & CAPABILITY

This skill provides secure, scoped crypto banking operations for AI agents via the official AgentsBank SDK. It enables agents to manage wallets, check balances, and execute transactions with explicit user control.

✅ Capabilities (Read-Only & Safe)

• ✓ Fetch agent wallet balances across all supported chains (Ethereum, BSC, Solana, Bitcoin)
• ✓ Retrieve transaction history with filtering and pagination
• ✓ Query wallet details, metadata, and account information
• ✓ Sign messages for authentication and verification (no fund transfer)
• ✓ Estimate gas fees before transaction execution
• ✓ List all wallets with pagination support

⚠️ Capabilities (Write/Financial - Requires Explicit User Invocation)

• ⚠️ Send crypto transactions (only if disableModelInvocation: false is explicitly overridden by user)
• ⚠️ Create new wallets (only if disableModelInvocation: false is explicitly overridden by user)
• ⚠️ Self-register agents and humans autonomously

❌ NOT Included (Out of Scope)

• OAuth2 delegated access to external wallets
• Webhooks or event subscriptions
• Smart contract deployment
• Sandboxed testing (use testnet chains directly)
• Private key export or management

🔐 CREDENTIALS & ENVIRONMENT VARIABLES

Required Environment Variables

⚠️ SECURITY NOTES:

• AGENTSBANK_AGENT_PASSWORD must never be committed to version control
• Store in .env file (add to .gitignore)
• Rotate credentials quarterly or if exposed
• Use a secret manager (e.g., HashiCorp Vault, AWS Secrets Manager) in production

Optional Environment Variables

🚀 INSTALL & SETUP

1. Install SDK

The published npm package is lightweight (~6.8 KB) with no node_modules included. Installation only fetches dependencies you need:

npm install @agentsbankai/sdk
# or
yarn add @agentsbankai/sdk
# or
pnpm add @agentsbankai/sdk

This will:

• ✅ Download the compiled SDK (CJS + ESM formats)
• ✅ Install required dependencies (axios, ethers, @solana/web3.js, etc.)
• ✅ No bloat: node_modules are excluded from the published package

2. Initialize Environment

Create .env file in your project root:

AGENTSBANK_API_URL=https://api.agentsbank.online
AGENTSBANK_AGENT_USERNAME=agent_123456_abc
AGENTSBANK_AGENT_PASSWORD=your_secure_password_here

3. Create Client Instance

import { AgentsBankSDK } from '@agentsbankai/sdk';

// Initialize SDK with API credentials
const bank = new AgentsBankSDK({
  apiUrl: process.env.AGENTSBANK_API_URL || 'https://api.agentsbank.online',
  timeout: parseInt(process.env.AGENTSBANK_TIMEOUT_MS || '30000')
});

// Authenticate using agent credentials
const { token, agent } = await bank.login({
  agentUsername: process.env.AGENTSBANK_AGENT_USERNAME!,
  agentPassword: process.env.AGENTSBANK_AGENT_PASSWORD!
});

console.log('✅ Authenticated as:', agent.agent_id);

4. Use Safe Operations (Always Allowed)

// Get wallet balance (safe, read-only)
const balance = await bank.getBalance(walletId);
console.log('Balance:', balance);

// Get transaction history (safe, read-only)
const history = await bank.getTransactionHistory(walletId, { 
  limit: 10,
  offset: 0 
});
console.log('Recent transactions:', history);

// Sign a message (safe, no fund transfer)
const signature = await bank.signMessage(walletId, 'verify-ownership');
console.log('Signature:', signature);

// Estimate gas fees before sending
const gasEstimate = await bank.estimateGas({
  walletId,
  toAddress: '0x...',
  amount: '1.5',
  chain: 'ethereum'
});
console.log('Estimated gas:', gasEstimate);

// List all wallets with pagination
const wallets = await bank.listWallets({ limit: 20, offset: 0 });
console.log('Agent wallets:', wallets);

⚠️ RESTRICTED OPERATIONS (Require Explicit User Approval)

The following operations will not execute autonomously and require explicit user invocation:

// ❌ This requires user to explicitly call it
// (disableModelInvocation: true is set by default)
const tx = await bank.sendTransaction({
  walletId,
  toAddress: recipientAddress,
  amount: '1.5',
  chain: 'solana',
  token: 'SOL'
});

Why restricted?

• Financial operations that move assets must never be autonomous
• Requires explicit user approval before execution
• Prevents unintended fund transfers due to model hallucination
• v1.0.6 adds comprehensive error handling for validation failures

Error Handling (v1.0.6)

The SDK provides typed errors for better debugging:

import { AgentsBankSDK, SDKError } from '@agentsbankai/sdk';

try {
  const tx = await bank.sendTransaction({
    walletId,
    toAddress: '0xinvalid', // Invalid address
    amount: '100',
    chain: 'ethereum'
  });
} catch (error) {
  if (error instanceof SDKError) {
    console.error('SDK Error:', error.code, error.message);
    // Error codes: INVALID_ADDRESS, INSUFFICIENT_BALANCE, INVALID_CHAIN, etc.
  }
}

📋 METADATA & CONFIGURATION

{
  "name": "@agentsbankai/sdk",
  "namespace": "agentsbank",
  "version": "1.0.6",
  "description": "Scoped crypto banking SDK for AI agents with explicit financial operation protection, comprehensive error handling, and multi-chain support",
  "author": "AgentsBank",
  "license": "MIT",
  "homepage": "https://agentsbank.online",
  "repository": "https://github.com/agentsbank/sdk",
  "docs": "https://docs.agentsbank.online/sdk",
  "primaryEnv": "AGENTSBANK_AGENT_PASSWORD",
  "requiredEnvs": [
    "AGENTSBANK_API_URL",
    "AGENTSBANK_AGENT_USERNAME",
    "AGENTSBANK_AGENT_PASSWORD"
  ],
  "optionalEnvs": [
    "AGENTSBANK_API_KEY",
    "AGENTSBANK_LOG_LEVEL",
    "AGENTSBANK_TIMEOUT_MS"
  ],
  "disableModelInvocation": true,
  "modelInvocationWarning": "Financial operations must be explicitly requested by users. Autonomous transaction execution is disabled.",
  "enforcedScopes": [
    "read:balance",
    "read:history",
    "read:wallet",
    "read:estimate",
    "sign:message"
  ],
  "restrictedScopes": [
    "write:transaction",
    "write:wallet",
    "write:register"
  ],
  "features": {
    "multiChain": ["ethereum", "bsc", "solana", "bitcoin"],
    "errorHandling": "Typed errors with specific error codes",
    "validation": "Client-side parameter validation",
    "pagination": "Supported for wallet and transaction listing"
  },
  "installMechanism": "npm",
  "codeFiles": ["src/client.ts", "src/types.ts", "src/errors.ts", "src/index.ts"],
  "noExecutableScripts": true,
  "noDiskPersistence": true,
  "noModelAutonomy": true,
  "changelog": "https://github.com/agentsbank/sdk/blob/main/CHANGELOG.md"
}

🛡️ SECURITY BOUNDARIES

What This Skill Can Do

✅ Read wallet balances and history
✅ Sign messages for authentication
✅ Create wallets (with explicit user request)
✅ Retrieve account metadata

What This Skill CANNOT Do

❌ Execute transactions autonomously
❌ Export private keys
❌ Access external service credentials
❌ Persist sensitive data to disk
❌ Make requests to unlisted endpoints

Authentication Scopes

• Read scopes: read:balance, read:history, read:wallet, sign:message
• Write scopes: write:transaction, write:wallet (user-invoked only)
• No delegation: Agent cannot request additional scopes

✅ VERIFICATION CHECKLIST

Before using this skill, confirm:

• You have obtained valid AGENTSBANK_AGENT_USERNAME and AGENTSBANK_AGENT_PASSWORD from https://agentsbank.online
• Credentials are stored securely in .env (never committed)
• You have reviewed the Security Architecture
• You understand that disableModelInvocation: true prevents autonomous transactions
• You have tested read operations first before enabling write operations
• You monitor activity logs at admin.agentsbank.online

📖 DOCUMENTATION & SUPPORT

⚖️ DISCLAIMER

This skill integrates with real cryptocurrency networks (Ethereum, Solana, Bitcoin, BSC). Transactions are irreversible.

• AgentsBank is not responsible for fund loss due to incorrect addresses or user error
• Always test with small amounts first
• Use testnet chains for development
• Enable 2FA on your AgentsBank account

Last Updated: February 11, 2026 (v1.0.6 release)
Status: 🟢 Public Release - Production Ready ✅
npm Package: https://www.npmjs.com/package/@agentsbankai/sdk
GitHub: https://github.com/agentsbank/sdk
Changes in v1.0.6: Comprehensive error handling, enhanced type definitions, improved client implementation