Build a Slack Agent with MastraThu Dec 4 @ 5:00 PM UTC

Build agents with a modern TypeScript stack

Mastra is an all-in-one framework for building

AI-powered applications and agents.

Start Buildingnpm create mastra@latest

Agent Framework

Build and iterate

Agents. Workflows. RAG. Memory. MCP. Evals.

Mastra lets you go from idea to implementation.

Agents

Workflows

RAG

Memory

Tools

MCP

●const chefAgent = new Agent({
●  name: "chef-agent",
●  instructions:
●    "You are Michel, a practical and experienced home chef. " +
●    "You help people cook with whatever ingredients they have.",
●  model: "openai/gpt-4o-mini",
●  tools: { fetchIngredients, printRecipe },
●});

Run your agents in a local dev server Write your agent logic in JavaScript

Your developer studio Iterate and visualize agents and workflows

Observability platform

Productionize and test

Tune context. Improve recall.

Tweak until your agents achieve human-level accuracy.

Define custom evals

Track performance of your agents over time

Evaluate agent output using model-graded, rule-based, and statistical methods Process inputs/outputs so you can prevent prompt injection and sanitize responses Trace agent calls and token usage, with your o11y platform Secure access to agent endpoints using your identity system

Built-in observability

View traces and logs for your agents

Deployment platform

Deploy and scale

Expose your agents as APIs, or bundle them with your app.

With Mastra, your agents are part of your infrastructure.

Manage deployments

Control your source code and infrastructure

Integrates with your framework or server: Next.js, Express, Hono, and more... Control your source code. Mastra is fully open-source under the Apache 2.0 license

Flexible architecture

Deploy Mastra agents wherever you're hosting your app, or as a standalone service

Build your first agent

with Templates read the Agent Book

learn with the Tutorial watch the Workshops

tune in to Agents hour and more...

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Browser agent\
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Automate browser actions \
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Google Sheet analysis\
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AI answer engine with Generative UI \
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Coding agent\
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AI coding agent with E2B sandbox \
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Deep research\
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Browse the web and summarize findings \
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PDF-to-audio\
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Convert a PDF into audio \
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Text-to-SQL\
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From natural language to SQL queries

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Principles of Building AI Agents\
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A practical guide on how to build AI agents

Get started quickly with pre-built solutions

from Mastra and our community.

Explore all templates

MCP Course Mastra 101\
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Introduced by Shane Thomas, CPO of Mastra

Python trains, TypeScript ships.

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