The First Interactive AI Engineering Platform

Don't just build Agents.
Engineer them.

Master Python-native AI development. Compare and learn PydanticAI, LangGraph, and Google ADK. No black boxes—just pure, type-safe code execution.

Live Execution: id-6427

Merso Runtime Environment

STARTEntry Point

> workflow_id: 8492

> status: initialized

RETRIEVERVector Search

> context_score: 0.89

> chunks: 4 found

LLM GENERATORClaude 3.5

> tokens: 847

> status: thinking...

GRADERQuality Check

> threshold: 0.85

> accuracy: checking...

QUERY REWRITERRefinement

> iteration: 2

> strategy: expand

ENDComplete

> result: success

> latency: 2.3s

data flow

retry loop

success

Built for Developers

Everything you need to master AI agent development

No Video Tutorials

Watching someone code doesn't make you an engineer. Here, you type, fail, and debug in a real cloud environment.

Visual Observability

See how your agent thinks. Watch execution flows, memory states, and retry loops in real-time.

Cloud Sandboxes

Forget Docker setup. We spin up a secure E2B sandbox for you instantly.

Python

PydanticAI

LangGraph

Google ADK

E2B