VoltAgent

Active
GitHub TypeScript MIT

Description

VoltAgent is an end-to-end AI Agent engineering platform combining a TypeScript framework with the VoltOps console for workflow, MCP, memory, and observability.

Key Features

  • Core agent runtime - typed roles, tools, memory, and model providers wired in one place
  • Declarative workflow engine - multi-step automations described in code, not graph editors
  • Supervisor and sub-agent topology - specialized agents coordinated by a supervisor runtime
  • Tool registry and MCP - Zod-typed tools with lifecycle hooks plus MCP server integration
  • Resumable streaming - clients reconnect to in-flight streams after page refresh
  • VoltOps console - observability, evals, prompt management, deployment, and guardrails

Use Cases

💡 Building a multi-agent expense approval system with supervisor routing
💡 Wiring a Zod-typed tool to a model with lifecycle hooks and cancellation
💡 Running RAG agents that retrieve from a knowledge base before answering
💡 Deploying an agent with prompt management, evals, and guardrails from one console
💡 Attaching durable memory so agents remember context across runs

Strengths & Limitations

Strengths

  • Actively maintained, recent updates
  • High community interest (10.5k stars)
  • Permissive open-source license (MIT)
  • Responsive to issues, low backlog

Quick Start

# Scaffold a new VoltAgent project
npm create voltagent-app@latest
# Then in src/index.ts:
import { VoltAgent, Agent, Memory } from "@voltagent/core";
import { LibSQLMemoryAdapter } from "@voltagent/libsql";
import { createPinoLogger } from "@voltagent/logger";
import { honoServer } from "@voltagent/server-hono";
import { openai } from "@ai-sdk/openai";
import { expenseApprovalWorkflow } from "./workflows";
import { weatherTool } from "./tools";

const logger = createPinoLogger({ name: "my-agent-app", level: "info" });
const memory = new Memory({ storage: new LibSQLMemoryAdapter() });

const agent = new Agent({
  name: "expense-bot",
  model: openai("gpt-4o"),
  tools: [weatherTool],
  memory,
});

new VoltAgent({ agents: { agent }, workflows: { expenseApprovalWorkflow }, logger, server: honoServer() });

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