Build & Earn

Learn to participate in the machine economy.

Teach people how to participate. No guaranteed income. No fake case studies. Observe demand before you build.

Start here Calculators Opportunity explorer Toolkit

Start here

• Build your first paid agent service
• Build your first x402 API
• Turn an existing API into an agent-purchasable service
• Build your first MCP tool
• Make an agent buy an API
• Give an agent a safe spending budget
• Build a buy → add value → sell workflow
• Make your service discoverable by other agents

Beginner

• What is an AI agent?
• What is the machine economy?
• What is x402?
• What is MCP?
• What is a machine-payment rail?
• Why would one agent pay another?
• What can an agent sell?
• What is an agent wallet?
• How does a 402 payment work?
• What is a paid API?
• What is autonomous procurement?

Intermediate

• Build your first agent
• Give an agent external tools
• Create an MCP server
• Expose an API
• Add machine-readable schemas
• Add x402 payment requirements
• Create a paid endpoint
• Give an agent a wallet safely
• Discover other paid services
• Build buy → transform → sell workflows
• Measure cost and contribution margin
• Make a service machine discoverable

Advanced

• Agent-to-agent commerce
• Autonomous procurement
• Routing across providers
• Payment orchestration
• Reputation
• Identity
• Settlement
• Accounting
• Evidence and provenance
• Fail-closed treasury controls
• Cross-protocol payment compatibility
• Marketplaces
• Agent discovery
• Machine-native business architecture

Validation workflow

OBSERVE → FIND_DEMAND → FORM_HYPOTHESIS → BUILD_MINIMUM_SERVICE → MAKE_IT_MACHINE_DISCOVERABLE → PRICE_IT → TEST_WITH_REAL_BUYERS → MEASURE_REPEAT_USE → IMPROVE_OR_KILL

zFinia does not promise you will make money. Independently verified Foundry revenue is still US$0.000.