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Rafael Silva

Developer building tools to optimize AI agent costs. Creator of Credit Optimizer for Manus AI.

Joined Joined on  github website
We Got Featured in Web Tools Weekly #673 — Here's What Happened

We Got Featured in Web Tools Weekly #673 — Here's What Happened

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2 min read
Building a Side Income Selling AI Developer Tools on Gumroad (Month 2 Update: $382)

Building a Side Income Selling AI Developer Tools on Gumroad (Month 2 Update: $382)

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2 min read
I Analyzed 500+ AI Tasks: Here's Exactly Where Developers Waste Money (Data Inside)

I Analyzed 500+ AI Tasks: Here's Exactly Where Developers Waste Money (Data Inside)

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2 min read
The Complete Guide to Reducing AI Agent Costs in 2026 (Manus, Claude, GPT)

The Complete Guide to Reducing AI Agent Costs in 2026 (Manus, Claude, GPT)

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2 min read
Manus AI for Web Development: Complete Workflow Guide (June 2026)

Manus AI for Web Development: Complete Workflow Guide (June 2026)

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2 min read
Web Developer Productivity: How AI Skills Save 10+ Hours Per Week (2026 Data)

Web Developer Productivity: How AI Skills Save 10+ Hours Per Week (2026 Data)

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2 min read
AI Agent Cost Optimization: Why 73% of Users Overspend

AI Agent Cost Optimization: Why 73% of Users Overspend

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2 min read
Manus AI Credit Optimizer: Complete Setup Guide (2026)

Manus AI Credit Optimizer: Complete Setup Guide (2026)

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2 min read
How I Built a $334/Month Side Hustle Selling AI Skills (Step by Step)

How I Built a $334/Month Side Hustle Selling AI Skills (Step by Step)

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2 min read
Manus AI vs ChatGPT: Which AI Tool Should You Use in 2026?

Manus AI vs ChatGPT: Which AI Tool Should You Use in 2026?

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1 min read
10 AI Agent Automation Tips That Actually Work (From 500+ Tasks)

10 AI Agent Automation Tips That Actually Work (From 500+ Tasks)

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2 min read
Manus AI Pricing Explained: How Credits Work and How to Save (2026 Guide)

Manus AI Pricing Explained: How Credits Work and How to Save (2026 Guide)

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2 min read
7 AI Tools That Actually Save You Money in 2026 (Not Just Hype)

7 AI Tools That Actually Save You Money in 2026 (Not Just Hype)

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2 min read
Manus AI Tutorial for Beginners: Complete Getting Started Guide (2026)

Manus AI Tutorial for Beginners: Complete Getting Started Guide (2026)

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2 min read
How to Make Money Selling Digital Products in 2026 (Real Numbers)

How to Make Money Selling Digital Products in 2026 (Real Numbers)

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1 min read
Best AI Agents 2026: Complete Comparison Guide (Manus, Devin, AutoGPT)

Best AI Agents 2026: Complete Comparison Guide (Manus, Devin, AutoGPT)

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2 min read
From Zero to 334 Dollars in 30 Days Selling on Gumroad (Full Breakdown)

From Zero to 334 Dollars in 30 Days Selling on Gumroad (Full Breakdown)

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2 min read
I Made $334 in 30 Days Selling a Digital Product on Gumroad (Complete Breakdown)

I Made $334 in 30 Days Selling a Digital Product on Gumroad (Complete Breakdown)

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2 min read
5 Manus AI Mistakes That Are Wasting Your Credits (And How to Fix Them)

5 Manus AI Mistakes That Are Wasting Your Credits (And How to Fix Them)

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2 min read
Manus AI Pricing Breakdown 2026: How Much Does It Really Cost?

Manus AI Pricing Breakdown 2026: How Much Does It Really Cost?

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2 min read
Top 10 Manus AI Skills That Actually Save You Money (Tested and Ranked)

Top 10 Manus AI Skills That Actually Save You Money (Tested and Ranked)

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2 min read
5 Manus AI Prompts That Cost 3x More Than They Should (And How to Fix Them)

5 Manus AI Prompts That Cost 3x More Than They Should (And How to Fix Them)

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2 min read
Manus AI vs ChatGPT vs Claude: Which AI Agent Gives Best Value Per Dollar in 2026?

Manus AI vs ChatGPT vs Claude: Which AI Agent Gives Best Value Per Dollar in 2026?

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2 min read
Stop Paying Full Price for AI: 7 Manus AI Hacks Nobody Talks About

Stop Paying Full Price for AI: 7 Manus AI Hacks Nobody Talks About

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1 min read
I Built a Manus AI Skill That Saves $50+/Month — Here is the Architecture

I Built a Manus AI Skill That Saves $50+/Month — Here is the Architecture

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1 min read
Manus AI Prompt Engineering: The Complete Cost-Optimization Framework (2026)

Manus AI Prompt Engineering: The Complete Cost-Optimization Framework (2026)

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2 min read
5 Manus AI Mistakes Wasting Your Credits (Data-Backed Fixes)

5 Manus AI Mistakes Wasting Your Credits (Data-Backed Fixes)

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2 min read
Manus AI Credit Optimizer v5: Complete Setup Guide (2026 Edition)

Manus AI Credit Optimizer v5: Complete Setup Guide (2026 Edition)

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2 min read
Is Manus AI Worth It in 2026? Honest Cost-Benefit Analysis

Is Manus AI Worth It in 2026? Honest Cost-Benefit Analysis

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4 min read
How to Get More Manus AI Credits (7 Proven Methods)

How to Get More Manus AI Credits (7 Proven Methods)

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3 min read
Manus AI Review 2026: The Complete Guide After 500+ Tasks

Manus AI Review 2026: The Complete Guide After 500+ Tasks

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3 min read
I Analyzed 500+ Manus AI Tasks to Find the Optimal Credit Strategy (Data Inside)

I Analyzed 500+ Manus AI Tasks to Find the Optimal Credit Strategy (Data Inside)

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3 min read
Manus AI vs Devin: Which AI Coding Agent Should You Choose in 2026?

Manus AI vs Devin: Which AI Coding Agent Should You Choose in 2026?

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3 min read
Manus AI Hidden Features: 10 Things Power Users Know (That You Don't)

Manus AI Hidden Features: 10 Things Power Users Know (That You Don't)

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2 min read
Why Your AI Agent Bills Are So High (And How to Fix Them)

Why Your AI Agent Bills Are So High (And How to Fix Them)

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3 min read
How to Install and Use Manus AI Skills (Complete 2026 Guide)

How to Install and Use Manus AI Skills (Complete 2026 Guide)

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3 min read
Manus AI Custom Instructions: The Complete Guide to Getting Better Results

Manus AI Custom Instructions: The Complete Guide to Getting Better Results

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4 min read
AI Agent Pricing Comparison 2026: Manus vs Devin vs AutoGPT vs CrewAI

AI Agent Pricing Comparison 2026: Manus vs Devin vs AutoGPT vs CrewAI

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3 min read
Manus AI vs ChatGPT in 2026: Which AI Agent Is Worth Your Money?

Manus AI vs ChatGPT in 2026: Which AI Agent Is Worth Your Money?

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3 min read
5 Free Ways to Save Money on Manus AI Credits (No Tools Required)

5 Free Ways to Save Money on Manus AI Credits (No Tools Required)

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3 min read
Manus AI Pricing in 2026: Complete Guide to Plans, Credits, and How to Save 47%

Manus AI Pricing in 2026: Complete Guide to Plans, Credits, and How to Save 47%

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4 min read
How I Built a Credit Optimizer That Saves 30-75% on AI Agent Costs (Open Architecture)

How I Built a Credit Optimizer That Saves 30-75% on AI Agent Costs (Open Architecture)

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3 min read
How I Reduced My Manus AI Credit Spend by 47% Without Losing Output Quality

How I Reduced My Manus AI Credit Spend by 47% Without Losing Output Quality

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3 min read
I Audited 53 Manus AI Tasks and Found 47% of Credits Were Wasted - Here is the Fix

I Audited 53 Manus AI Tasks and Found 47% of Credits Were Wasted - Here is the Fix

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4 min read
The Hidden Cost of AI Agents in 2026

The Hidden Cost of AI Agents in 2026

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1 min read
My Manus AI Credit Usage After 30 Days — The Data

My Manus AI Credit Usage After 30 Days — The Data

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How I Automated My Manus AI Workflow and Saved 62%

How I Automated My Manus AI Workflow and Saved 62%

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2 min read
Standard vs Max Mode in Manus AI — A Developer's Decision Tree

Standard vs Max Mode in Manus AI — A Developer's Decision Tree

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2 min read
5 Quick Tips to Cut Manus AI Costs by 50%

5 Quick Tips to Cut Manus AI Costs by 50%

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2 min read
How I Automated My Manus AI Workflow (And Saved 62%)

How I Automated My Manus AI Workflow (And Saved 62%)

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2 min read
The Hidden Cost of AI Agents in 2026

The Hidden Cost of AI Agents in 2026

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2 min read
My Manus AI Credit Usage After 30 Days — The Data

My Manus AI Credit Usage After 30 Days — The Data

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2 min read
Manus AI: Standard vs Max Mode — A Developer's Decision Tree

Manus AI: Standard vs Max Mode — A Developer's Decision Tree

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2 min read
Save 62% on Manus AI Credits: A Developer's Guide to Intelligent Task Routing

Save 62% on Manus AI Credits: A Developer's Guide to Intelligent Task Routing

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2 min read
I Made $152 in 23 Days Selling a Manus AI Optimization Tool — Here's Every Step

I Made $152 in 23 Days Selling a Manus AI Optimization Tool — Here's Every Step

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4 min read
5 Manus AI Credit Optimization Strategies That Actually Work (With Real Numbers)

5 Manus AI Credit Optimization Strategies That Actually Work (With Real Numbers)

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4 min read
Manus AI Credit Optimization Cheatsheet: Save 47% on Every Task

Manus AI Credit Optimization Cheatsheet: Save 47% on Every Task

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2 min read
Complete Guide to Saving Credits on Manus AI (2026 Edition)

Complete Guide to Saving Credits on Manus AI (2026 Edition)

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4 min read
5 Ways You're WASTING Credits on Manus AI Right Now (And How to Stop)

5 Ways You're WASTING Credits on Manus AI Right Now (And How to Stop)

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3 min read
The Real Cost of Manus AI: I Analyzed 50+ Reddit Posts and the Numbers Are Shocking

The Real Cost of Manus AI: I Analyzed 50+ Reddit Posts and the Numbers Are Shocking

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3 min read
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