Content
<div align="center">
<h1>Lucid Agents</h1>
<p><strong>The Protocol-Agnostic Multi-Runtime Framework for Building and Monetizing AI Agents</strong></p>
<p>Build, deploy, and monetize autonomous AI agents with typed entrypoints, onchain identity, and built-in payment infrastructure.</p>
</div>
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---
## What is Lucid Agents?
Lucid Agents is a TypeScript-first framework for building and monetizing AI agents. An agentic commerce and payments SDK. Build AI agents that sell services, facilitate monetary transactions, and participate in agent-to-agent marketplaces.
**Core Capabilities:**
- **Industry-Standard Protocols**: Native support for x402 (payments), A2A (agent-to-agent communication), and ERC-8004 (onchain identity). Build agents that work with the ecosystem
- **Bi-Directional Payment Tracking**: Track both outgoing payments (agent pays) and incoming payments (agent receives) with persistent storage. Automatic recording with policy enforcement
- **Payment Policies**: Control spending and receivables with per-payment limits, time-windowed totals, per-target/per-sender limits, and allow/block lists. Multiple policy groups for flexible control
- **Accept Payments**: Accept payments in USDC on Ethereum L2s (Base) or Solana with automatic paywall middleware. No payment infrastructure code needed
- **Payment Analytics**: Comprehensive payment reporting with summary statistics, transaction history, and CSV/JSON export for accounting system integration
- **Agent-to-Agent Communication**: Agents can discover and call other agents, enabling agent marketplaces and multi-agent systems where agents buy and sell services from each other
- **Onchain Identity**: Register agent identities onchain, build reputation, and prove ownership for trust in agent marketplaces
- **Framework Flexibility**: Write your agent logic once, deploy on Hono, TanStack Start, Express, or Next.js. Choose the framework that fits your stack
- **Type-Safe APIs**: Define inputs/outputs with Zod schemas, get automatic validation, JSON schemas, and full TypeScript inference
- **Real-Time Streaming**: Server-Sent Events (SSE) for streaming agent responses. Perfect for LLM outputs and long-running operations
- **Task Management**: Long-running tasks with status tracking, cancellation, and real-time updates via SSE subscriptions
- **Auto-Discovery**: Auto-generated AgentCard manifests with Open Graph tags. Agents are discoverable in directories and show rich previews when shared
- **Quick Start**: CLI scaffolding with templates for common patterns. Get a working agent in minutes, not hours
- **Multi-Network Support**: Accept payments on EVM (Base, Ethereum, Sepolia) or Solana (mainnet, devnet) networks
- **Composable Architecture**: Add only the features you need. Payments, identity, A2A, wallets, analytics. Mix and match as your agent evolves
Whether you're building paid AI services, agent marketplaces, or multi-agent systems where agents transact with each other, Lucid Agents provides the payments and commerce infrastructure you need.
---
## Quick Start (5 Minutes)
Get your first monetized AI agent running in minutes.
### Prerequisites
- [Bun](https://bun.sh/docs/installation) >= 1.0 (recommended) or Node.js >= 20.9
- An API key from your preferred LLM provider (OpenAI, Anthropic, etc.)
- Optional: A wallet address for receiving payments
### 1. Create and Configure Your Agent
```bash
# Interactive mode - CLI guides you through all options
bunx @lucid-agents/cli my-agent
# Or use inline configuration for faster setup
bunx @lucid-agents/cli my-agent \
--adapter=hono \
--template=axllm \
--AGENT_NAME="My AI Agent" \
--AGENT_DESCRIPTION="AI-powered assistant" \
--OPENAI_API_KEY=your_api_key_here \
--PAYMENTS_RECEIVABLE_ADDRESS=0xYourAddress \
--NETWORK=base-sepolia \
--DEFAULT_PRICE=1000
```
The CLI will:
- **Adapter selection**: `hono` (HTTP server), `tanstack-ui` (full dashboard), `tanstack-headless` (API only), `express` (Node.js server), or `next` (Next.js App Router)
- **Template selection**: `blank` (minimal), `axllm` (LLM-powered), `axllm-flow` (workflows), `identity` (onchain identity), `trading-data-agent` (merchant), or `trading-recommendation-agent` (shopper)
- **Configuration**: Set agent metadata, LLM keys, and optional payment details
- **Install dependencies**: Automatically run `bun install`
### 2. Start Your Agent
```bash
cd my-agent
bun run dev
```
Your agent is now running at `http://localhost:3000`!
**Try it out:**
```bash
# View agent manifest
curl http://localhost:3000/.well-known/agent.json
# List entrypoints
curl http://localhost:3000/entrypoints
# Invoke an entrypoint (example for echo template)
curl -X POST http://localhost:3000/entrypoints/echo/invoke \
-H "Content-Type: application/json" \
-d '{"input": {"text": "Hello, Lucid Agents!"}}'
```
---
## Architecture Overview
Lucid Agents is a TypeScript monorepo built for protocol-agnostic, multi-runtime agent deployment with a compositional extension architecture:
- **Layer 1: Core** - Protocol-agnostic agent runtime with extension system (`@lucid-agents/core`) - no protocol-specific code
- **Layer 2: Extensions** - Optional capabilities added via composition: `http()` (HTTP protocol), `payments()` (x402), `wallets()` (wallet management), `identity()` (ERC-8004), `a2a()` (agent-to-agent), `ap2()` (Agent Payments Protocol)
- **Layer 3: Adapters** - Framework integrations (hono, tanstack, express, next) that use the HTTP extension
The core runtime is completely protocol-agnostic. Protocols like HTTP are provided as extensions that get merged into the runtime. Future protocols (gRPC, WebSocket, etc.) can be added as additional extensions.
> For detailed architecture documentation including dependency graphs, request flows, and extension system design, see [docs/ARCHITECTURE.md](docs/ARCHITECTURE.md).
### Packages
- **`@lucid-agents/types`** - Shared type definitions used across all packages
- **`@lucid-agents/core`** - Protocol-agnostic agent runtime with extension system
- **`@lucid-agents/http`** - HTTP extension for request/response handling, streaming, and SSE
- **`@lucid-agents/wallet`** - Wallet SDK for agent and developer wallet management
- **`@lucid-agents/payments`** - x402 payment utilities with bi-directional tracking, payment policies, and persistent storage (SQLite, In-Memory, Postgres)
- **`@lucid-agents/analytics`** - Payment analytics and reporting with CSV/JSON export for accounting system integration
- **`@lucid-agents/identity`** - ERC-8004 identity toolkit for onchain agent identity
- **`@lucid-agents/a2a`** - A2A Protocol client for agent-to-agent communication
- **`@lucid-agents/ap2`** - AP2 (Agent Payments Protocol) extension for Agent Cards
- **`@lucid-agents/hono`** - Hono HTTP server adapter
- **`@lucid-agents/express`** - Express HTTP server adapter
- **`@lucid-agents/tanstack`** - TanStack Start adapter (UI and headless variants)
- **`@lucid-agents/cli`** - CLI scaffolding tool for creating new agent projects
### Key Concepts
**Entrypoints**: Typed API endpoints that define your agent's capabilities. Each entrypoint has:
- Input/output schemas (Zod)
- Optional pricing (x402)
- Handler (synchronous) or stream handler (SSE)
**Adapters**: Runtime frameworks that expose your entrypoints as HTTP routes. Choose based on your deployment needs:
- `hono` - Lightweight, edge-compatible HTTP server
- `tanstack` - Full-stack React with UI dashboard (or headless API-only)
- `express` - Traditional Node.js HTTP server
- `next` - Next.js App Router integration
**A2A Communication**: Agent-to-agent communication protocol enabling agents to call other agents:
- **Direct Invocation**: Synchronous calls via `client.invoke()` or `client.stream()`
- **Task-Based Operations**: Long-running tasks with `sendMessage()`, status tracking, and cancellation
- **Multi-Turn Conversations**: Group related tasks with `contextId` for conversational agents
- **Agent Composition**: Agents can act as both clients and servers, enabling complex supply chains
**Manifests**: Auto-generated AgentCard (`.well-known/agent-card.json`) that describes your agent's capabilities, pricing, and identity for discovery tools and A2A protocols. Built using immutable composition pattern.
**Payment Networks**: Accept payments on:
- **EVM**: Base, Ethereum, Sepolia (ERC-20 USDC)
- **Solana**: Mainnet, Devnet (SPL USDC)
**Identity**: ERC-8004 onchain identity for reputation and trust. Register once, reference across all networks.
**Payment Policies**: Control both outgoing and incoming payments with limits, time windows, and allow/block lists. Organize policies into groups for flexible control.
**Payment Analytics**: Track spending and earnings with summary statistics, transaction history, and export to CSV/JSON for accounting systems.
---
## Key Packages
### Core Packages
#### [`@lucid-agents/core`](packages/core/README.md)
Protocol-agnostic agent runtime with extension system.
```typescript
import { createAgent } from '@lucid-agents/core';
import { http } from '@lucid-agents/http';
import { z } from 'zod';
const agent = await createAgent({
name: 'my-agent',
version: '1.0.0',
description: 'My first agent',
})
.use(http())
.build();
agent.entrypoints.add({
key: 'greet',
input: z.object({ name: z.string() }),
async handler({ input }) {
return { output: { message: `Hello, ${input.name}!` } };
},
});
```
#### [`@lucid-agents/hono`](packages/hono/README.md)
Hono adapter for building traditional HTTP servers.
```typescript
import { createAgent } from '@lucid-agents/core';
import { http } from '@lucid-agents/http';
import { createAgentApp } from '@lucid-agents/hono';
const agent = await createAgent({
name: 'my-agent',
version: '1.0.0',
})
.use(http())
.build();
const { app, addEntrypoint } = await createAgentApp(agent);
// Add entrypoints...
// Export for Bun.serve or use Hono serve helper
export default {
port: Number(process.env.PORT ?? 3000),
fetch: app.fetch,
};
```
#### [`@lucid-agents/tanstack`](packages/tanstack/README.md)
TanStack Start adapter with UI and headless variants.
```typescript
import { createAgent } from '@lucid-agents/core';
import { http } from '@lucid-agents/http';
import { createTanStackRuntime } from '@lucid-agents/tanstack';
const agent = await createAgent({
name: 'my-agent',
version: '1.0.0',
})
.use(http())
.build();
export const { runtime: tanStackRuntime, handlers } =
await createTanStackRuntime(agent);
```
#### [`@lucid-agents/http`](packages/http/README.md)
HTTP extension for request/response handling, streaming, and Server-Sent Events.
```typescript
import { createAgent } from '@lucid-agents/core';
import { http } from '@lucid-agents/http';
const agent = await createAgent({
name: 'my-agent',
version: '1.0.0',
})
.use(http({ landingPage: true }))
.build();
// Access HTTP handlers via agent.handlers
```
#### [`@lucid-agents/identity`](packages/identity/README.md)
ERC-8004 toolkit for onchain identity, reputation, and validation.
```typescript
import { createAgent } from '@lucid-agents/core';
import { wallets } from '@lucid-agents/wallet';
import { walletsFromEnv } from '@lucid-agents/wallet';
import { createAgentIdentity } from '@lucid-agents/identity';
const agent = await createAgent({
name: 'my-agent',
version: '1.0.0',
})
.use(wallets({ config: walletsFromEnv() }))
.build();
const identity = await createAgentIdentity({
runtime: agent,
domain: 'my-agent.example.com',
autoRegister: true, // Register onchain if not exists
});
```
#### [`@lucid-agents/payments`](packages/payments/README.md)
x402 payment utilities with bi-directional tracking, payment policies, and persistent storage.
```typescript
import { createAgent } from '@lucid-agents/core';
import { payments } from '@lucid-agents/payments';
import { paymentsFromEnv } from '@lucid-agents/payments';
const agent = await createAgent({
name: 'my-agent',
version: '1.0.0',
})
.use(
payments({
config: {
...paymentsFromEnv(),
policyGroups: [
{
name: 'Daily Limits',
outgoingLimits: {
global: { maxTotalUsd: 100.0, windowMs: 86400000 },
},
incomingLimits: {
global: { maxTotalUsd: 5000.0, windowMs: 86400000 },
},
blockedSenders: {
domains: ['https://untrusted.example.com'],
},
},
],
},
storage: { type: 'sqlite' }, // or 'in-memory' or 'postgres'
})
)
.build();
// Auto-detects EVM vs Solana from PAYMENTS_RECEIVABLE_ADDRESS format
// Automatically tracks outgoing and incoming payments
```
#### [`@lucid-agents/a2a`](packages/a2a/README.md)
A2A Protocol client for agent-to-agent communication.
```typescript
import { createAgent } from '@lucid-agents/core';
import { http } from '@lucid-agents/http';
import { a2a } from '@lucid-agents/a2a';
const agent = await createAgent({
name: 'my-agent',
version: '1.0.0',
})
.use(http())
.use(a2a())
.build();
// Access A2A client via agent.a2a
const result = await agent.a2a.client.invoke(
'https://other-agent.com',
'skillId',
{
input: 'data',
}
);
```
#### [`@lucid-agents/analytics`](packages/analytics/README.md)
Payment analytics and reporting with CSV/JSON export for accounting systems.
```typescript
import { createAgent } from '@lucid-agents/core';
import { analytics } from '@lucid-agents/analytics';
import { getSummary, exportToCSV } from '@lucid-agents/analytics';
import { payments, paymentsFromEnv } from '@lucid-agents/payments';
const agent = await createAgent({
name: 'my-agent',
version: '1.0.0',
})
.use(payments({ config: paymentsFromEnv() }))
.use(analytics())
.build();
// Get payment summary
const summary = await getSummary(agent.analytics.paymentTracker, 86400000);
console.log(
`Outgoing: ${summary.outgoingTotal}, Incoming: ${summary.incomingTotal}`
);
// Export to CSV for accounting systems
const csv = await exportToCSV(agent.analytics.paymentTracker);
```
#### [`@lucid-agents/ap2`](packages/ap2/README.md)
AP2 (Agent Payments Protocol) extension for Agent Cards.
```typescript
import { createAgent } from '@lucid-agents/core';
import { ap2 } from '@lucid-agents/ap2';
const agent = await createAgent({
name: 'my-agent',
version: '1.0.0',
})
.use(ap2({ roles: ['merchant'] }))
.build();
```
#### [`@lucid-agents/wallet`](packages/wallet/README.md)
Wallet SDK for agent and developer wallet management.
```typescript
import { createAgentWallet } from '@lucid-agents/wallet';
const wallet = await createAgentWallet({
type: 'local',
privateKey: process.env.AGENT_WALLET_PRIVATE_KEY,
});
// Or use a thirdweb Engine wallet with the same connector interface
const agent = await createAgent({
name: 'thirdweb-agent',
version: '0.1.0',
})
.use(http())
.use(
wallets({
config: {
agent: {
type: 'thirdweb',
secretKey: process.env.AGENT_WALLET_SECRET_KEY!,
clientId: process.env.AGENT_WALLET_CLIENT_ID,
walletLabel: 'agent-wallet',
chainId: 84532, // Base Sepolia
},
},
})
)
.build();
const connector = agent.wallets?.agent?.connector;
const capabilities = connector?.getCapabilities?.();
if (!connector?.getWalletClient || !capabilities?.walletClient) {
throw new Error('thirdweb wallet client not available');
}
const walletClient = (await connector.getWalletClient())?.client;
if (!walletClient) {
throw new Error('Wallet client not initialized');
}
await walletClient.writeContract({
account: walletClient.account,
chain: walletClient.chain,
address: USDC_ADDRESS,
abi: erc20Abi,
functionName: 'transfer',
args: ['0xEA4b0D5ebF46C22e4c7E6b6164706447e67B9B1D', 10_000n], // 0.01 USDC
});
```
### CLI Tool
#### [`@lucid-agents/cli`](packages/cli/README.md)
CLI for scaffolding new agent projects with templates and interactive configuration.
```bash
# Interactive mode
bunx @lucid-agents/cli
# With options
bunx @lucid-agents/cli my-agent \
--adapter=tanstack-ui \
--template=axllm \
--non-interactive
```
Each package contains detailed API documentation, environment variable references, and working examples.
---
## Example: Full-Featured Agent
Here's a complete example showing identity, payments, and LLM integration with streaming:
```typescript
import { z } from 'zod';
import { createAgent } from '@lucid-agents/core';
import { http } from '@lucid-agents/http';
import { wallets } from '@lucid-agents/wallet';
import { walletsFromEnv } from '@lucid-agents/wallet';
import { payments } from '@lucid-agents/payments';
import { paymentsFromEnv } from '@lucid-agents/payments';
import { identity, identityFromEnv } from '@lucid-agents/identity';
import { createAgentApp } from '@lucid-agents/hono';
import { AI } from '@ax-llm/ax';
// 1. Initialize LLM
const ai = new AI({
provider: 'openai',
apiKey: process.env.OPENAI_API_KEY,
});
// 2. Build app with all extensions (identity extension handles ERC-8004 registration automatically)
const agent = await createAgent({
name: 'ai-assistant',
version: '1.0.0',
description: 'AI assistant with onchain identity and streaming responses',
image: 'https://my-agent.example.com/og-image.png',
})
.use(http())
.use(wallets({ config: walletsFromEnv() }))
.use(payments({ config: paymentsFromEnv() }))
.use(identity({ config: identityFromEnv() }))
.build();
const { app, addEntrypoint } = await createAgentApp(agent);
// 4. Add paid entrypoint with streaming
addEntrypoint({
key: 'chat',
description: 'Chat with AI assistant',
input: z.object({
message: z.string(),
history: z
.array(
z.object({
role: z.enum(['user', 'assistant']),
content: z.string(),
})
)
.optional(),
}),
streaming: true,
async stream(ctx, emit) {
const messages = [
...(ctx.input.history || []),
{ role: 'user' as const, content: ctx.input.message },
];
const stream = await ai.chat.stream({ messages });
for await (const chunk of stream) {
await emit({
kind: 'delta',
delta: chunk.delta,
mime: 'text/plain',
});
}
return {
output: { completed: true },
usage: { total_tokens: stream.usage.total_tokens },
};
},
});
// Export for Bun.serve or use Hono serve helper
const port = Number(process.env.PORT ?? 3000);
export default {
port,
fetch: app.fetch,
};
```
**Features demonstrated:**
- Onchain identity registration (ERC-8004). Automatically handled by identity extension
- Automatic x402 payment verification
- Bi-directional payment tracking with policy enforcement
- Streaming LLM responses via SSE
- Type-safe input/output schemas
- Trust metadata in manifest for verifiable agent identity
- Open Graph tags for discovery
---
## Development
### Setup
```bash
# Clone the repository
git clone https://github.com/daydreamsai/lucid-agents.git
cd lucid-agents
# Install dependencies
bun install
# Build all packages
bun run build:packages
```
### Package Development
```bash
# Work on a specific package
cd packages/core
# Build this package
bun run build
# Run tests
bun test
# Type check
bun run type-check
# Lint and format
bun run lint:fix
bun run format
```
---
## Contributing
We welcome contributions! Whether you're fixing bugs, adding features, or improving documentation.
### Development Setup
1. **Fork and clone** the repository
2. **Install dependencies:**
```bash
bun install
```
3. **Build all packages** (required - must run in dependency order):
```bash
bun run build:packages
```
4. **Make your changes:**
- Add tests for new features
- Update documentation as needed
5. **Run checks before submitting:**
```bash
bun test # All tests
bun run type-check # TypeScript validation
bun run lint # Code linting
```
6. **Create a changeset:**
```bash
bun run changeset
```
7. **Submit a pull request**
For detailed guidelines, see [CONTRIBUTING.md](CONTRIBUTING.md).
---
## Resources
### Documentation
- **Architecture Guide**: [docs/ARCHITECTURE.md](docs/ARCHITECTURE.md) - System design, dependency graphs, and request flows
- **Package READMEs**: Each package has comprehensive documentation and `AGENTS.md` files
- **Contributing Guide**: [CONTRIBUTING.md](CONTRIBUTING.md) - Development workflow and guidelines
### Protocols & Specifications
- **ERC-8004 Specification**: [EIP-8004](https://eips.ethereum.org/EIPS/eip-8004) - Onchain agent identity standard
- **x402 Protocol**: [x402 GitHub](https://github.com/paywithx402) - HTTP-native payment protocol
- **A2A Protocol**: [Agent-to-Agent Communication](https://a2a-protocol.org/) - Agent discovery and communication protocol
### Technologies
- **Hono Framework**: [hono.dev](https://hono.dev/) - Lightweight web framework
- **TanStack Start**: [tanstack.com/start](https://tanstack.com/start) - Full-stack React framework
- **Bun Runtime**: [bun.sh](https://bun.sh/) - Fast JavaScript runtime
- **Zod**: [zod.dev](https://zod.dev/) - TypeScript-first schema validation
---
## License
This project is licensed under the **MIT License**. See the [LICENSE](LICENSE) file for details.
---
## Contributors
<a href="https://github.com/daydreamsai/lucid-agents/graphs/contributors">
<img src="https://contrib.rocks/image?repo=daydreamsai/lucid-agents" alt="Contributors" />
</a>
---
## Star History
<a href="https://star-history.com/#daydreamsai/lucid-agents&Date">
<img src="https://api.star-history.com/svg?repos=daydreamsai/lucid-agents&type=Date" alt="Star History Chart" />
</a>
---
<div align="center">
<p>Built with ❤️ by the Daydreams AI team</p>
<p>
<a href="https://github.com/daydreamsai/lucid-agents">GitHub</a> •
<a href="https://www.npmjs.com/org/lucid-agents">npm</a> •
<a href="https://twitter.com/daydreamsai">Twitter</a>
</p>
</div>
