@valentin-monteiro

Valentin Monteiro

@valentin-monteiroTbilisiJoined March 2026

Data & AI Consultant | From data strategy to AI integration | Python, SQL, BigQuery, LLMs | Remote

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Valentin Monteiro's blogs

monteiro.consultingmonteiro.hashnode.dev7 posts

MCP Explained: Model Context Protocol for Tech Leaders

A tech lead pings you on Slack: "we should move our Claude integrations to MCP." You ask what they have today. Four custom tools wired via function calling, running in production for the past eight months. You ask what's broken. "Nothing, but MCP is ...

May 9 · 6 min readmonteiro.hashnode.dev

Claude Agent SDK: When It's Worth It, When It's Not

A tech lead messages you on Slack: "we should move our internal chatbot to the Claude Agent SDK." You ask what they're running today. Single-turn with function calling, plus a retriever. You ask what's broken. "Nothing, but the SDK is better." The SD...

May 6 · 5 min readmonteiro.hashnode.dev

Anthropic Prompt Caching: The Setting That Cuts Your Claude API Bill by 3x

You ship your first agent built on the Claude API. A month in, you open the Anthropic console to check the spend. It's not catastrophic, but it's two to three times what you'd budgeted. You scroll the logs, you look at the calls, and the answer jumps...

Apr 23 · 7 min readmonteiro.hashnode.dev

Claude vs GPT: Which One Should Your Company Pick in 2026

The CEO asks, in the middle of a leadership meeting: "so, Claude or GPT for our internal assistant?". IT has one camp. Marketing has another. The sales guy, who uses ChatGPT daily, doesn't even grasp that there could be more than one. Three hours lat...

Apr 22 · 7 min readmonteiro.hashnode.dev

Data Audit: Where to Start When Nothing Is Structured

Your CEO asks what your top 10 customers truly cost, all-in. Your CFO stares at her screen. The sales rep pulls out a USB stick. The project lead promises to "get back to you Friday." It's Monday morning. The question is basic. Nobody can answer. You...

Apr 22 · 5 min readmonteiro.hashnode.dev

Valentin Monteiro

About

Available for

Valentin Monteiro's blogs

MCP Explained: Model Context Protocol for Tech Leaders

Claude Agent SDK: When It's Worth It, When It's Not

Anthropic Prompt Caching: The Setting That Cuts Your Claude API Bill by 3x

Claude vs GPT: Which One Should Your Company Pick in 2026

Data Audit: Where to Start When Nothing Is Structured

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Valentin Monteiro

About

Available for

Valentin Monteiro's blogs

MCP Explained: Model Context Protocol for Tech Leaders

Claude Agent SDK: When It's Worth It, When It's Not

Anthropic Prompt Caching: The Setting That Cuts Your Claude API Bill by 3x

Claude vs GPT: Which One Should Your Company Pick in 2026

Data Audit: Where to Start When Nothing Is Structured