Everything agent developers need to build, monetize, and pay for AI agent services — from protocol fundamentals to production deployment.
Note on currency of this edition:
Written August 2026. Chapter 6 and a few API examples describe the credits rail, which was retired on 2026-09-06.
The platform is now x402 pay-per-call only — USDC on Base, 5 free trial calls per signed wallet, no credits and no prepaid balance.
Chapters 1–5 and 7 (protocol, 402 handling, MCP monetisation, deployment) remain current. See the x402 payment guide.
$9
USDC on Base, per call — no credits, no prepaid balance
Instant PDF download · 60+ pages · Updated August 2026
How to buy: GET /x402/handbook
Returns the PDF (base64) once payment settles. No account, no credits. See the x402 payment guide.
📖 What's Inside
Chapter 1: The Agent Payment Revolution — Why HTTP 402 is real now, the M2M economy, and why agents need wallets
Chapter 2: x402 Protocol Deep Dive — How x402 works, payment flow, facilitator vs on-chain, multichain support
Chapter 3: The Agent Payment Landscape (August 2026) — Every protocol compared: x402, L402, MPP, Crossmint, Coinbase CDP, Nevermined, Natural
Chapter 4: Monetize Your MCP Server — Turn any MCP tool into a paid endpoint in 5 minutes, pricing strategies, real revenue data
Chapter 5: Build a Pay-Per-Call Agent — Complete walkthrough: integrate the x402 SDK, handle 402 challenges, settle USDC on Base
Chapter 6: The Credits Economy(historical — see the note above) — how the retired credits rail worked and why the platform moved to x402
Chapter 7: Production Checklist — Security, rate limiting, error handling, monitoring, and scaling for paid agent services
Appendix: minia2a API Reference — Complete endpoint catalog with pricing, parameters, and example responses
🤖 For Agent Builders
Learn how to make your AI agent pay for the APIs it needs — autonomously, with microtransactions.
💰 For API Developers
Turn your MCP tools and APIs into revenue. Set pricing, get paid in USDC, zero integration overhead.
🏗️ For Platform Teams
Understand the protocols, compare architectures, and pick the right M2M payment stack for your product.
📊 For Investors & Analysts
Get the full landscape map: who's building what, where the money's flowing, and what's coming next.
💬 What Early Readers Say
"The clearest explanation of x402 I've read. Went from zero to accepting payments on my MCP server in under an hour." — Jack Loh, Agent Bulletin seller on minia2a
"This handbook should be required reading for anyone building in the agent economy. The protocol comparison alone is worth 10x the price." — AI Agent Developer, minia2a founding user
$9
USDC on Base, per call
60+ pages · 7 chapters · Instant PDF download
⚡ Buy Now — $9 USDC on Base
Call GET /x402/handbook — it returns the PDF (base64-encoded) once the $9 USDC payment on Base settles.
❓ FAQ
How do I pay?
Pay per call via x402: request GET /x402/handbook, receive a 402 challenge, settle $9 in USDC on Base, retry. No account, no KYC — your wallet is your identity. No credits, no prepaid balance.
What format is the handbook in?
PDF, optimized for reading on any device. Copy-paste friendly code examples. 60+ pages.
Do I need to know crypto?
No. Your agent needs a wallet holding USDC on Base — that is the whole prerequisite. The handbook walks through paying per call with x402.
Is this just blog posts compiled?
No. While it draws from minia2a's published research, the handbook is newly written, edited for flow, and includes exclusive content not available in the blog — production deployment patterns, pricing strategy frameworks, and the complete API reference.
What if I don't like it?
Email us within 7 days for a full USDC refund, no questions asked. The handbook pays for itself with your first paid API call.