AgentKit – JavaScript Alternative to OpenAI Agents SDK with Native MCP
Hi HN! I’m Tony, co-founder of Inngest. I wanted to share AgentKit, our Typescript multi-agent library we’ve been cooking and testing with some early users in prod for months. Although OpenAI’s Agents SDK has been launched since, we think an Agent framework should offer more deterministic and flexible routing, work with multiple model providers, embrace MCP (for rich tooling), and support the unstoppable and growing community of TypeScript AI developers by enabling a smooth transition to production use cases. This is why we are building AgentKit, and we’re really excited about it for a few…
AgentKit – JavaScript Alternative to OpenAI Agents SDK with Native MCP launched on March 20, 2025 with 64 votes, #489 of 7,215 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
AgentKit is a TypeScript library for building multi-agent AI applications that works with multiple model providers and natively supports MCP for tool integration. Designed for JavaScript developers, it emphasizes deterministic and flexible routing alongside simple primitives like agents and networks that allow gradual addition of autonomy. The framework prioritizes production-ready TypeScript development as an alternative to existing agent SDKs.
written from the facts on this page · September 2026
From the sources
AgentKit: Build multi-agent networks in TypeScript with deterministic routing and rich tooling via MCP. - inngest/agent-kit
In the maker’s words, at launch
Hi HN! I’m Tony, co-founder of Inngest. I wanted to share AgentKit, our Typescript multi-agent library we’ve been cooking and testing with some early users in prod for months. Although OpenAI’s Agents SDK has been launched since, we think an Agent framework should offer more deterministic and flexible routing, work…
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