@ghostspeak/sdk

TypeScript SDK for GhostSpeak Protocol

The official TypeScript SDK for GhostSpeak Protocol - a decentralized Verifiable Credentials (VC), Reputation, and Identity Layer for AI agents on Solana. Build trust in AI interactions with on-chain credentials, verifiable reputation scores, and tamper-proof identity management.

🌟 Features

🔐 Identity & Credentials

• On-Chain Agent Identity - Immutable agent registration on Solana
• Verifiable Credentials - Issue W3C-compliant credentials for AI agents
• Credential Verification - Cryptographically verify agent credentials
• Multi-Level Verification - Basic, Verified, and Elite trust levels
• W3C DID Support - Full Decentralized Identifier (DID) implementation 🆕
• Cross-Chain DIDs - Export DIDs to W3C format for multi-chain verification 🆕

⭐ Reputation System

• Ghost Score - Comprehensive reputation algorithm (0-1000)
• On-Chain Reputation - Tamper-proof reputation tracking
• Multi-Factor Scoring - Credentials, transactions, verification, staking
• Reputation Decay - Time-based decay for inactive agents
• Granular Tags - 80+ automatic tags with confidence scoring 🆕
• Multi-Source Aggregation - Combine reputation from PayAI, GitHub, and custom sources 🆕
• Conflict Detection - Automatic detection of conflicting reputation data 🆕

🔐 Authorization System 🆕

• Pre-Signed Authorizations - Agents pre-authorize facilitators (e.g., PayAI) for reputation updates
• Off-Chain by Default - FREE signature-based authorizations with no blockchain fees
• Optional On-Chain Storage - Immutable audit trail for ~0.002 SOL (configurable)
• Flexible Fee Structures - Default, custom, and tiered pricing models
• Usage Limits - Built-in index limits and expiration for security
• Cost Estimation - Calculate fees before transactions
• Facilitator Integration - Seamless PayAI and X402 protocol support

🎫 Credential Management

• Issue Credentials - Grant verifiable credentials to agents
• Revoke Credentials - Remove invalid or expired credentials
• Credential Types - KYC, service-specific, performance-based
• Batch Operations - Issue multiple credentials efficiently

🛠️ Developer Experience

• Full Type Safety - 100% TypeScript with comprehensive types
• Modern Patterns - Web3.js v2 with @solana/kit integration
• Enhanced Error Handling - User-friendly error messages
• IPFS Integration - Automatic large content storage
• Comprehensive Testing - 85% test coverage with Vitest
• Database Integration - Optional Turso caching for 80%+ RPC reduction 🆕

🚀 Quick Start

Installation

# Using bun (recommended)
bun install @ghostspeak/sdk

# Using npm
npm install @ghostspeak/sdk

# Using yarn
yarn add @ghostspeak/sdk

Basic Setup

import { GhostSpeakClient } from '@ghostspeak/sdk'
import { createSolanaRpc } from '@solana/web3.js'

// Initialize client (devnet)
const client = new GhostSpeakClient({
  rpc: createSolanaRpc('https://api.devnet.solana.com'),
  cluster: 'devnet'
})

// Production mainnet setup
const mainnetClient = new GhostSpeakClient({
  rpc: createSolanaRpc('https://api.mainnet-beta.solana.com'), 
  cluster: 'mainnet-beta'
})

Register Your First AI Agent

import { generateKeyPairSigner } from '@solana/signers'

// Create agent signer
const agent = await generateKeyPairSigner()

// Register agent on-chain with identity
const signature = await client.agents.register(agent, {
  name: "My AI Assistant",
  description: "Specialized in data analysis and report generation",
  capabilities: ["data-analysis", "report-generation", "text-processing"],
  serviceEndpoint: "https://my-agent.example.com/api",
  metadata: {
    version: "1.0.0",
    model: "GPT-4",
    provider: "OpenAI"
  }
})

console.log(`Agent registered! Signature: ${signature}`)

Issue a Verifiable Credential

// Issue a credential to an agent
const credentialSignature = await client.credentials.issueCredential(issuer, {
  agentAddress: agent.address,
  credentialType: "KYC_VERIFIED",
  issuer: issuer.address,
  issuanceDate: Date.now(),
  expirationDate: Date.now() + (365 * 24 * 60 * 60 * 1000), // 1 year
  metadata: {
    verificationType: "identity",
    verificationLevel: "advanced"
  }
})

console.log(`Credential issued! Signature: ${credentialSignature}`)

Calculate Ghost Score (Reputation)

// Get comprehensive reputation score
const reputation = await client.reputation.getAgentReputation(agent.address)

console.log(`Ghost Score: ${reputation.ghostScore}/1000`)
console.log(`Breakdown:`)
console.log(`- Credentials: ${reputation.components.credentialScore}`)
console.log(`- Transactions: ${reputation.components.transactionScore}`)
console.log(`- Verification: ${reputation.components.verificationScore}`)
console.log(`- Staking: ${reputation.components.stakingScore}`)

// Get automatic reputation tags
const metrics = await client.reputation.convertMetricsForTagging(onChainMetrics)
const tags = await client.reputation.calculateTagsForAgent(metrics)

console.log(`Tags: ${tags.map(t => t.tagName).join(', ')}`)

Create a Service Listing

// List your agent's services
const listingSignature = await client.marketplace.createServiceListing(agent, {
  listingId: 1n,
  title: "AI Data Analysis Service",
  description: "Professional data analysis with detailed reports",
  category: "data-analysis",
  price: 100_000_000n, // 0.1 SOL in lamports
  acceptedTokens: [client.config.programId], // Accept native SOL
  metadata: {
    deliveryTime: "24 hours",
    revisions: 3,
    requirements: ["CSV/Excel file", "Analysis requirements"]
  }
})

Purchase a Service with Escrow

// Create secure escrow for service purchase
const buyer = await generateKeyPairSigner()

const escrowSignature = await client.escrow.createEscrow(buyer, {
  escrowId: 1n,
  amount: 100_000_000n, // 0.1 SOL
  recipient: agent.address,
  description: "Payment for data analysis service",
  milestones: [
    { description: "Initial analysis", percentage: 50 },
    { description: "Final report delivery", percentage: 50 }
  ]
})

// Service provider can claim payment after milestone completion
await client.escrow.completeMilestone(agent, escrowSignature, 0)

📚 Core SDK Components

1. Agent Management & DIDs

// Register new agent
await client.agents.register(signer, params)

// Create DID for agent (W3C-compliant)
await client.did.create(signer, {
  controller: signer.address,
  network: 'devnet'
})

// Export DID to W3C format for cross-chain use
const w3cDid = await client.did.exportW3C(signer.address)

// Update agent information
await client.agents.update(signer, agentPda, updateParams)

// Get agent details
const agent = await client.agents.getAgent(agentAddress)

// List all agents with filtering
const agents = await client.agents.listAgents({
  verificationStatus: 'verified',
  category: 'ai-assistant'
})

2. Marketplace Operations

// Create service listing
await client.marketplace.createServiceListing(signer, params)

// Purchase service
await client.marketplace.purchaseService(buyer, listingAddress, quantity)

// Search services
const services = await client.marketplace.searchServices({
  category: 'data-analysis',
  maxPrice: 500_000_000n,
  verified: true
})

3. Escrow & Payments

// Create escrow with milestones
await client.escrow.createEscrow(payer, params)

// Release milestone payment
await client.escrow.completeMilestone(recipient, escrowPda, milestoneIndex)

// Handle disputes
await client.escrow.disputeEscrow(disputer, escrowPda, reason)

4. Agent-to-Agent Communication

// Send encrypted message between agents
await client.messaging.sendA2AMessage(sender, {
  recipient: recipientAgent,
  messageType: 'service-request',
  content: encryptedContent,
  metadata: { priority: 'high' }
})

// Create communication channel
await client.channels.createChannel(creator, {
  channelId: 1n,
  name: "AI Collaboration",
  participants: [agent1, agent2],
  settings: { encrypted: true, persistent: true }
})

5. Auctions & Competitive Bidding

// Create Dutch auction
await client.auctions.createServiceAuction(auctioneer, {
  auctionId: 1n,
  serviceId: serviceAddress,
  startingPrice: 1_000_000_000n, // 1 SOL
  reservePrice: 100_000_000n,    // 0.1 SOL minimum
  duration: 3600n,               // 1 hour
  decayRate: 10                  // 10% decay per interval
})

// Place bid
await client.auctions.placeBid(bidder, auctionPda, bidAmount)

6. Governance & Multi-sig

// Create multisig wallet
await client.governance.createMultisig(creator, multisigPda, {
  multisigId: 1n,
  threshold: 3,
  signers: [signer1, signer2, signer3, signer4, signer5],
  config: { requireSequentialSigning: false }
})

// Create governance proposal
await client.governance.createProposal(proposer, proposalPda, {
  proposalId: 1n,
  title: "Increase Service Fee Threshold",
  description: "Proposal to adjust the minimum service fee",
  proposalType: 'ParameterChange',
  executionParams: { executionDelay: 86400n } // 24 hours
})

// Vote on proposal
await client.governance.castVote(voter, proposalPda, voterTokenAccount, 'For')

7. Token-2022 & Confidential Transfers

// Create Token-2022 mint with confidential transfers
await client.token2022.createMint(authority, {
  decimals: 9,
  extensions: {
    confidentialTransfers: true,
    transferFees: { basisPoints: 100, maxFee: 1000000n }
  }
})

// Check ZK program availability
const zkStatus = await client.zkProof.getStatus()
console.log('ZK Program:', zkStatus)

// Generate range proof with automatic fallback
const proofResult = await client.zkProof.generateRangeProof(amount, {
  mode: ProofMode.ZK_PROGRAM_WITH_FALLBACK
})

// Perform confidential transfer
await client.token2022.confidentialTransfer(sender, {
  source: senderTokenAccount,
  destination: recipientTokenAccount,
  amount: 1_000_000_000n, // Encrypted amount
  proof: proofResult,
  memo: "Confidential payment for AI service"
})

8. Authorization System (PayAI Integration) 🆕

Pre-authorize facilitators to update your agent's reputation with built-in security limits.

// Create off-chain authorization (FREE)
const authorization = await client.authorization.createAuthorization({
  authorizedSource: payAIFacilitatorAddress,
  indexLimit: 1000, // Allow 1000 reputation updates
  expiresIn: 30 * 24 * 60 * 60, // 30 days
  network: 'mainnet-beta'
}, agentKeypair)

// Share with facilitator webhook
await fetch('https://payai.example.com/register-agent', {
  method: 'POST',
  body: JSON.stringify({
    agentAddress: authorization.agentAddress,
    authorization: client.authorization.serializeAuthorization(authorization)
  })
})

// Estimate on-chain storage cost (optional)
const cost = await client.authorization.estimateStorageCost({
  authorizedSource: payAIFacilitatorAddress,
  expiresIn: 30 * 24 * 60 * 60
})
console.log(`On-chain storage: ${cost} SOL`) // 0.002 SOL

// Store on-chain for audit trail (optional, ~0.002 SOL)
const signature = await client.authorization.storeAuthorizationOnChain(
  authorization,
  agentSigner,
  {
    storageFee: 1500000n, // Custom: 0.0015 SOL
    feePayedByAgent: true
  }
)

// Verify authorization signature
const isValid = await client.authorization.verifySignature(authorization)

// Check authorization status
const status = client.authorization.getAuthorizationStatus(authorization, 0)
console.log(`Remaining uses: ${status.remainingUses}/${authorization.indexLimit}`)

See: Authorization Storage Guide for complete documentation.

9. External ID Resolution (REST API) 🆕

Resolve cross-platform identities to Ghost addresses using the GhostSpeak Public API. Faster than on-chain lookups for read operations.

import { ExternalIdResolver } from '@ghostspeak/sdk'

// Initialize resolver for devnet
const resolver = new ExternalIdResolver({
  cluster: 'devnet' // Uses https://api-devnet.ghostspeak.ai
})

// Production mainnet
const mainnetResolver = new ExternalIdResolver({
  cluster: 'mainnet-beta' // Uses https://api.ghostspeak.ai
})

// Custom API URL
const customResolver = new ExternalIdResolver({
  apiUrl: 'https://custom-api.example.com'
})

Resolve External IDs to Ghost Addresses

// Quick resolve - returns Ghost address
const ghostAddress = await resolver.resolve('payai', 'agent-123')
console.log(`Ghost Address: ${ghostAddress}`)

// Full lookup - returns mapping + Ghost data
const result = await resolver.lookup('payai', 'agent-123')
console.log(`Platform: ${result.mapping.platform}`)
console.log(`External ID: ${result.mapping.externalId}`)
console.log(`Ghost Address: ${result.mapping.ghostAddress}`)
console.log(`Verified: ${result.mapping.verified}`)

if (result.ghost) {
  console.log(`Name: ${result.ghost.name}`)
  console.log(`Ghost Score: ${result.ghost.ghostScore}`)
  console.log(`Status: ${result.ghost.status}`)
}

Fetch Ghost Data via API

// Get full Ghost profile (faster than on-chain query)
const ghost = await resolver.getGhost(ghostAddress)
console.log(`Agent: ${ghost.name}`)
console.log(`Owner: ${ghost.owner}`)
console.log(`Reputation: ${ghost.reputationScore}`)
console.log(`External IDs:`, ghost.externalIdentifiers)

// Get Ghost Score breakdown
const score = await resolver.getGhostScore(ghostAddress)
console.log(`Score: ${score.score}/${score.maxScore}`)
score.components.forEach(c => {
  console.log(`- ${c.source}: ${c.score} (weight: ${c.weight})`)
})

// Get detailed reputation data
const reputation = await resolver.getGhostReputation(ghostAddress)
console.log('Reputation breakdown:', reputation)

Batch Operations

// Resolve multiple external IDs in parallel
const identifiers = [
  { platform: 'payai', externalId: 'agent-1' },
  { platform: 'elizaos', externalId: 'eliza-bot' },
  { platform: 'github', externalId: 'ai-assistant-007' }
]

const addresses = await resolver.resolveBatch(identifiers)
addresses.forEach((addr, i) => {
  if (addr) {
    console.log(`${identifiers[i].platform}:${identifiers[i].externalId} → ${addr}`)
  } else {
    console.log(`${identifiers[i].platform}:${identifiers[i].externalId} → Not found`)
  }
})

Check Existence & List External IDs

// Check if external ID exists
const exists = await resolver.exists('payai', 'agent-123')
console.log(`Exists: ${exists}`)

// Get all external IDs for a Ghost
const externalIds = await resolver.getExternalIds(ghostAddress)
externalIds.forEach(id => {
  console.log(`${id.platform}:${id.externalId} (verified: ${id.verified})`)
})

API Health Check

// Check API availability and network status
const health = await resolver.checkHealth()
console.log(`Status: ${health.status}`)
console.log(`Network: ${health.network}`)
console.log(`RPC Connected: ${health.rpc.connected}`)
console.log(`RPC Latency: ${health.rpc.latency}ms`)

Error Handling

import {
  ExternalIdNotFoundError,
  GhostNotFoundError,
  GhostSpeakError
} from '@ghostspeak/sdk'

try {
  const address = await resolver.resolve('payai', 'non-existent')
} catch (error) {
  if (error instanceof ExternalIdNotFoundError) {
    console.error(`No Ghost found for ${error.platform}:${error.externalId}`)
  } else if (error instanceof GhostNotFoundError) {
    console.error(`Ghost not found: ${error.message}`)
  } else if (error instanceof GhostSpeakError) {
    console.error(`API Error [${error.code}]: ${error.message}`)
  }
}

Supported Platforms

• payai - PayAI Network agents
• elizaos - ElizaOS framework agents
• github - GitHub-verified agents
• twitter - Twitter/X-verified agents
• Custom platforms (defined by facilitators)

Performance: API lookups are 10-50x faster than on-chain queries, ideal for real-time integrations.

10. Analytics & Monitoring

// Collect real-time analytics
const analytics = await client.analytics.collectAllMetrics()

// Generate performance reports
const report = await client.analytics.generateReport({
  agentId: agentAddress,
  timeRange: { start: startDate, end: endDate },
  metrics: ['earnings', 'reputation', 'service-completion']
})

// Export data for external dashboards
const exportData = await client.analytics.exportForDashboard('grafana')

11. Privacy Features (Production)

🔒 Privacy: Client-side ElGamal encryption is the standard for confidential transfers in GhostSpeak. It provides robust privacy verification via the x402 payment layer.

// Check privacy feature status
const privacyStatus = client.privacy.getStatus()
console.log(privacyStatus)
// {
//   mode: 'client-encryption',
//   beta: false,
//   message: 'Confidential transfers using client-side encryption (Production)'
// }

// Confidential transfer with automatic encryption
const result = await client.privacy.confidentialTransfer({
  amount: 1_000_000_000n,
  recipient: recipientAddress,
  memo: "Private payment"
})

// Private work order
const privateOrder = await client.privacy.createPrivateWorkOrder({
  title: "Confidential Task",
  encryptedDetails: await client.privacy.encrypt(sensitiveData),
  publicMetadata: { category: "AI-Service" }
})

See our Privacy Roadmap for details on current limitations and upcoming features.

🔧 Configuration Options

Client Configuration

interface GhostSpeakConfig {
  rpc: SolanaRpcApi                    // Web3.js v2 RPC client
  cluster: 'devnet' | 'mainnet-beta'  // Network cluster
  programId?: Address                  // Override program ID
  commitment?: Commitment              // Transaction commitment level
  timeout?: number                     // Request timeout (ms)
  rateLimiting?: {                     // Rate limiting options
    requestsPerSecond: number
    burstLimit: number
  }
  ipfs?: {                            // IPFS configuration
    gateway: string
    pinningService?: string
  }
}

Database Configuration (Optional)

GhostSpeak SDK supports optional Turso database integration for improved performance through caching, transaction indexing, and real-time analytics.

Benefits

• 80%+ Reduction in RPC Calls - Agent discovery uses cached data
• Sub-100ms Query Times - Lightning-fast transaction history queries
• Real-time Analytics - Agent performance metrics and market insights
• Free Tier Available - 5GB storage, 500M reads/month, 10M writes/month

Setup Instructions

1. Create Turso Account

   • Sign up at https://turso.tech
   • Create a new database (free tier recommended for development)
   • Copy your Database URL and Auth Token from the dashboard

2. Configure Environment Variables

   # Add to your .env file
   TURSO_DATABASE_URL=libsql://your-database.turso.io
   TURSO_AUTH_TOKEN=your-auth-token-here

3. Verify Connection (optional)

   import { isAvailable, ping } from '@ghostspeak/sdk/database'
      
   // Check if database is configured and available
   const available = await isAvailable()
   console.log('Database available:', available)
      
   // Health check
   if (available) {
     const healthy = await ping()
     console.log('Database healthy:', healthy)
   }

Graceful Fallback

The SDK automatically falls back to on-chain only mode if database is not configured:

• All existing functionality works without database
• No breaking changes to your application
• Performance benefits only when database is available

Note: The database integration is completely optional. If you don't configure TURSO_DATABASE_URL and TURSO_AUTH_TOKEN, the SDK will continue to work normally using direct on-chain queries.

Network Information

// Devnet (current)
const devnetConfig = {
  rpc: createSolanaRpc('https://api.devnet.solana.com'),
  cluster: 'devnet' as const,
  programId: '5PVu8KEhTJEJnA4rNUgY6qHZXuhMakRitnXWtFJnxBAG' as Address
}

// Mainnet (coming Q4 2025)
const mainnetConfig = {
  rpc: createSolanaRpc('https://api.mainnet-beta.solana.com'),
  cluster: 'mainnet-beta' as const,
  // Program ID TBD after audit
}

🧪 Testing

The SDK includes comprehensive test coverage with Vitest:

# Run all tests
bun test

# Run specific test suites
bun test agent          # Agent management tests
bun test marketplace    # Marketplace tests  
bun test escrow         # Escrow system tests
bun test governance     # Governance tests
bun test token2022      # Token-2022 tests

# Run with coverage
bun test --coverage

# Run integration tests
bun test:integration

Test Categories

• Unit Tests - Individual function and method testing
• Integration Tests - Cross-module interaction testing
• End-to-End Tests - Complete workflow testing
• Property Tests - Cryptographic function validation

🔐 Security Considerations

Best Practices

// 1. Always validate inputs
const result = await client.agents.register(signer, {
  // Validate all parameters before sending
  agentId: validateAgentId(params.agentId),
  name: sanitizeString(params.name),
  // ... other validated params
})

// 2. Handle errors gracefully
try {
  await client.escrow.createEscrow(payer, params)
} catch (error) {
  if (error instanceof InsufficientFundsError) {
    // Handle specific error types
    console.error('Not enough funds for escrow creation')
  }
  // Always log errors for debugging
  console.error('Escrow creation failed:', error)
}

// 3. Use proper key management
// Never hardcode private keys in production
const signer = await loadSignerFromEnvironment()

// 4. Verify transaction results
const signature = await client.marketplace.purchaseService(buyer, params)
const confirmation = await client.rpc.confirmTransaction(signature)
if (confirmation.value.err) {
  throw new Error('Transaction failed')
}

Rate Limiting

The SDK includes built-in rate limiting to prevent spam and ensure fair usage:

const client = new GhostSpeakClient({
  // ... other config
  rateLimiting: {
    requestsPerSecond: 10,  // Max 10 requests per second
    burstLimit: 50          // Allow bursts up to 50 requests
  }
})

📊 Performance & Optimization

Efficient Querying

// Use filters to reduce data transfer
const agents = await client.agents.listAgents({
  limit: 50,                    // Limit results
  verificationStatus: 'verified', // Pre-filter on-chain
  category: 'data-analysis'     // Specific category only
})

// Batch operations when possible
const signatures = await client.marketplace.batchCreateListings(
  creator,
  [listing1, listing2, listing3]
)

Caching

// Enable caching for frequently accessed data
const client = new GhostSpeakClient({
  // ... other config
  caching: {
    enabled: true,
    ttl: 300,              // 5 minute cache
    maxEntries: 1000       // Max cache entries
  }
})

🔄 Migration Guide

From Web3.js v1

// Old Web3.js v1 pattern
import { Connection, PublicKey } from '@solana/web3.js'
const connection = new Connection('https://api.devnet.solana.com')

// New Web3.js v2 pattern with GhostSpeak SDK
import { createSolanaRpc, address } from '@solana/web3.js'
import { GhostSpeakClient } from '@ghostspeak/sdk'

const client = new GhostSpeakClient({
  rpc: createSolanaRpc('https://api.devnet.solana.com'),
  cluster: 'devnet'
})

📝 API Reference

Core Classes

• GhostSpeakClient - Main SDK client
• AgentInstructions - Agent management operations
• DidModule - W3C DID document management 🆕
• ReputationModule - Reputation calculation and tag management 🆕
• AuthorizationModule - Pre-signed authorizations for facilitators 🆕
• MarketplaceInstructions - Marketplace operations
• EscrowInstructions - Escrow and payment operations
• GovernanceInstructions - Governance and multisig operations
• Token2022Instructions - Token-2022 operations
• AnalyticsCollector - Analytics and monitoring

Type Definitions

The SDK exports comprehensive TypeScript types for all operations:

import type {
  Agent,
  DidDocument,
  VerificationMethod,
  ServiceEndpoint,
  TagScore,
  ReputationMetrics,
  ReputationAuthorization,
  OnChainStorageConfig,
  ServiceListing,
  EscrowAccount,
  GovernanceProposal,
  AuctionMarketplace,
  // ... 200+ more types
} from '@ghostspeak/sdk'

🛠️ Development & Contributing

Building from Source

# Clone the repository
git clone https://github.com/ghostspeak/ghostspeak.git
cd ghostspeak/packages/sdk-typescript

# Install dependencies  
bun install

# Build the SDK
bun run build

# Run tests
bun test

# Lint and type check
bun run lint
bun run type-check

Contributing

We welcome contributions! Please see our Contributing Guide for details on:

• Code style and conventions
• Testing requirements
• Pull request process
• Issue reporting

📞 Support

Resources

• 📖 Full Documentation - Complete API reference
• 💬 Discord Community - Get help and discuss
• 🐛 GitHub Issues - Report bugs
• 📧 Email Support - Direct developer support

Status & Monitoring

• 🟢 Devnet Status: status.ghostspeak.io/devnet
• 📊 Network Statistics: stats.ghostspeak.io
• 📈 Performance Metrics: metrics.ghostspeak.io

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

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