Zypher Agent

Production-ready AI agents that live in your applications

Features

• Agent, Not Workflow: Reactive loop where the agent dynamically decides
  next steps based on LLM reasoning.
• Git-Based Checkpoints: Track, review, and revert agent changes with
  built-in checkpoint management
• Extensible Tool System: Built-in tools for file operations, search, and
  terminal commands with support for custom tools
• Model Context Protocol (MCP): Native support for MCP servers with OAuth
  authentication
• Multi-Provider Support: Works with Anthropic Claude and OpenAI GPT models
  through a unified interface
• Loop Interceptor System: Customize agent behavior with extensible
  post-inference interceptors
• Production-Ready: Configurable timeouts, concurrency protection, and
  comprehensive error handling

Quick Start

Installation

[!NOTE]
Support for npm coming soon.

Using JSR

deno add jsr:@zypher/agent

SDK Usage

import { createZypherAgent } from "@zypher/agent";
import { createFileSystemTools } from "@zypher/agent/tools";
import { eachValueFrom } from "rxjs-for-await";

const agent = await createZypherAgent({
  model: "claude-sonnet-4-5-20250929", // Or use ModelProvider for advanced options
  tools: [...createFileSystemTools()],
  mcpServers: ["@modelcontextprotocol/sequentialthinking-server"],
});

// Run task with streaming
const taskEvents = agent.runTask("Implement authentication middleware");

for await (const event of eachValueFrom(taskEvents)) {
  console.log(event);
}

See our documentation for full usage
examples and API reference.

License

Licensed under the Apache License, Version 2.0. See LICENSE.md for
details.

Resources

• Documentation and
  API Reference
• Issue Tracker
• Model Context Protocol

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