Tyler Barnes

Tyler Barnes

Founding Engineer

Tyler Barnes (BC, Canada) is a founding engineer at Mastra, focusing on all things related to agents (memory, tools, model routing, etc). Previously, he was a staff software engineer at Gatsby and Netlify, working on open-source developer tooling, GraphQL APIs, and large scale data ingestion.

5 blog posts·1 research paper

Posts by Tyler Barnes

Introducing Mastra Model Router: 600+ models, one API, zero package installs

Access 600+ LLM models from 40+ providers with a single string. Full TypeScript autocomplete turns your IDE into a model search engine.

Oct 9, 2025Tyler Barnes

Yes, you can use RAG for agent memory

How we spent $8k to prove RAG isn’t dead

Jul 17, 2025Tyler Barnes

Introducing Mastra MCP Documentation Server

We built a Mastra MCP documentation server that provides AI assistants and IDE's with direct access to Mastra.ai's complete knowledge base.

Mar 18, 2025Tyler Barnes

Why We're All-In on MCP

A deep dive into why Mastra is adopting Model Context Protocol (MCP) for AI tool integration, comparing it with Agents.json and Composio, addressing current limitations in discovery, quality, and configuration, and providing a framework-friendly proposal with practical code examples for implementation.

Mar 5, 2025Tyler Barnes

Using Mastra's Agent Memory API

A technical guide to implementing agent memory in Mastra, covering storage, vector search, and context management

Feb 4, 2025Tyler Barnes

Research by Tyler Barnes

Yes, you can use RAG for agent memory

Jul 17, 2025 · 12 min read

How we spent $8k to prove RAG isn't dead