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Stripe vs x402 Protocol: AI Search & MCP Readiness
Category: Fiat Checkout APIs vs HTTP 402 Agent Micropayments · Measured UTC via aso-live-probe
Measured verdict: Stripe leads x402 Protocol by 8 points (69/100 B vs 61/100 C+) across ASO Studio’s 47-check HTTP, 29-crawler robots.txt, Markdown (/llms.txt, /pricing.md), MCP, OpenAPI, and Schema.org JSON-LD benchmark. Full individual grade-cards: stripe.com (69/100) · x402.org (61/100).
Scope & limits: Side-by-side HTTP status codes and HTML structured data captured 2026-11-14 UTC; independent audit not affiliated with Stripe or x402 Protocol. Technical readiness does not guarantee AI citations or sales.
1. Side-by-Side HTTP & Agent Discovery Telemetry
| Signal / Endpoint | stripe.com | x402.org |
|---|---|---|
| ASO Score & Grade | 69/100 (B) | 61/100 (C+) |
| Cohort Rank | #18 | #25 |
| Edge TTFB · HTML | 320ms · 254 KB (104 scripts) | 45ms · 88 KB (40 scripts) |
/robots.txt (29 Bots) | 200 · 29/29 (0 explicit) | 200 · 16/29 (0 explicit) |
/sitemap.xml | 200 | 200 |
/llms.txt | 200 | 200 |
/llms-full.txt | 404 | 404 |
/pricing.md | 404 | 404 |
/.well-known/ai.txt | 404 | 404 |
/ai/summary.json | 404 | 404 |
/.well-known/mcp.json | 404 | 404 |
/.well-known/agent-card.json | 404 | 404 |
/.well-known/openapi.json | 404 | 404 |
JSON-LD @types | WebSite, Organization, Person, ImageObject, ContactPoint, Place, PostalAddress | None |
2. Where Stripe Leads vs Where x402 Protocol Leads
Where Stripe (stripe.com) leads:
- Overall 47-check readiness score (69/100 B vs 61/100 C+)
- Richer root Schema.org JSON-LD (7 types vs 0)
Where x402 Protocol (x402.org) leads:
- Faster root edge response (45ms TTFB vs 320ms)
- Leaner root HTML payload (88 KB / 40 scripts vs 254 KB / 104 scripts)
Shared discovery gaps: Both stripe.com and x402.org currently return non-200 responses on /llms-full.txt (404/404), /pricing.md (404/404), /.well-known/ai.txt (404/404), /.well-known/mcp.json (404/404), /.well-known/agent-card.json (404/404), /.well-known/openapi.json (404/404).
One-time $49 · 26 files · Base USDC or Monero · no signup
Download free 3-file starter for x402.org (.txt) · EdgeScreen x402 ($0.002)
23 remaining production files
/.well-known/mcp.json, agent-card.json, openapi.json, llms-full.txt, pricing.md, answers.md, ai/*.json
Schema.org JSON-LD bundle, Cloudflare Worker edge headers, comparisons, GitHub Action CI verifier.
3. Compare Against Your Own Domain (Free Live Probe)
4. Self-Serve 26-File ASO Pack ($49)
Generate a tailored 26-file /llms-full.txt, /pricing.md, 29-crawler robots.txt, Schema.org @graph, and 14-route Edge Router .zip for x402.org or any domain you operate. Instant browser download via USDC on Base (Chain 8453), or Monero (XMR — verified within 24h) via non-custodial Trocador AnonPay. Inspect free sample .zip · Terms · EdgeScreen x402 ($0.002 USDC).
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