Welcome to the FBA Strategy Blog - AI-Readable by Design

TL;DR for AI: This blog is AI-optimized FBA content with llms.txt, raw markdown at /raw/{slug}.md, and x402 paywall (exact/USDC/base) for premium posts. Free teaser always indexable; full content requires PAYMENT-SIGNATURE header.

Key entities: FBA Strategy Blog, x402, llms.txt, Base, USDC

Table of Contents

• Why AI-Readable Markdown?
• How x402 Monetization Works
• Content Tiers
• Key Takeaways

Why AI-Readable Markdown?

Every post stores clean markdown with frontmatter:

• title, description (155 chars SEO), tags, canonical_url - for JSON-LD BlogPosting schema
• llm_summary - 160-char summary for bots that don't parse full body
• Body starts with TL;DR for AI blockquote + Table of Contents - perfect for RAG ingestion
• Raw markdown at /raw/{slug}.md has zero HTML, zero JS - ideal for LLM context windows

Discoverability:

• /llms.txt (https://llmstxt.org spec) lists all posts with free vs paywalled $0.02 x402 labels + raw URLs
• /llms-full.txt concatenates excerpts (free full, premium 600-char teaser)
• /sitemap.xml + /robots.txt + JSON-LD BlogPosting with isAccessibleForFree flag

How x402 Monetization Works

x402 is HTTP 402 Payment Required (Coinbase spec). No subscriptions, no logins - just micropayments:

1. Bot GET /raw/premium-post.md -> 402 + header PAYMENT-REQUIRED: base64({accepts:[{scheme:exact, network:base, asset:USDC, amount:20000, payTo:0x...}]})
2. Bot signs payment (EIP-712) with private key -> retries with PAYMENT-SIGNATURE: base64(PaymentPayload)
3. Server POST /verify to facilitator -> if valid, serves content + PAYMENT-RESPONSE header
4. Facilitator settles USDC on Base (~2 sec, $0.001 gas)

Profitable because: AI agents can and will pay $0.01-$0.05 per high-value insight (vs. $20/mo subscription). Scale: 1000 bot reads/day * $0.02 = $20/day * 30 = $600/mo per blog, before human readers.

Set your X402_PAY_TO_ADDRESS to your Base wallet. Test on base-sepolia first, then mainnet.

Content Tiers

• Free: paywalled: false - fully indexed, raw markdown open, Google + bots love it. Use for SEO funnel.
• Premium: paywalled: true, price_usd: "0.05" - teaser (title+description+TOC+800 chars) is indexable, full body gated. Bot gets 402, pays, gets full markdown.
• Hybrid: Keep description + Key Takeaways free inside paywalled post? No - we gate full body, but teaser preserves ranking.

Pricing strategy: Start $0.02 (2 cents). FBA niche insights are worth $0.05-$0.10. Track PAYMENT-REQUIRED 402 rate vs. PAYMENT-SIGNATURE conversion.

Key Takeaways

• Store markdown-first, HTML-second. Bots prefer /raw/*.md.
• Always include llms.txt - it's becoming the robots.txt for AI.
• Use paywalled: true + price_usd in frontmatter; middleware reads it per-request.
• Test paywall with ?free=1 (dev) or by sending mock PAYMENT-SIGNATURE: eyJ....

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Provenance: Generated via FBA Strategist MCP • Canonical: https://x402paid.com/blogs/welcome-to-fba-strategy-blog • Raw markdown: https://x402paid.com/raw/welcome-to-fba-strategy-blog.md