mwaltzer.work / rail
One payments layer, many properties.
A minimal front door, a retro homepage, a blog, a studio — four sites that share nothing visually and everything economically: the same x402 rail, the same D1 ledger, the same one-cent prices, the same receipts. The aesthetic is a costume; the rail is the product.
Rail status
rail
real
x402.org facilitator
network
eip155:84532
Base Sepolia testnet
buyer wallet
0x0895D762…0 USDC
paid settlements
19
recorded in D1
The buyer wallet is unfunded, so the real facilitator currently declines with invalid_exact_evm_insufficient_balance; flows report the decline and settle on the labeled simulated rail. Fund the wallet and settlement moves on-chain, no redeploy.
The four primitives, in production here
| readable | Every page is server-rendered — an agent gets the full content of the blog and the homepage with zero JavaScript. |
| discoverable | /llms.txt and /.well-known/payment-manifest declare what lives here and what it costs; the webring makes sites traversable. |
| callable | Every feature is an endpoint first — guestbook, counter, ring, essays, downloads — and the pages are thin clients over them. |
| payable | Paid resources answer HTTP 402 with PAYMENT-REQUIRED; a wallet retries with PAYMENT-SIGNATURE; receipts return in PAYMENT-RESPONSE. Real EIP-3009 signatures, real facilitator verification. |
Priced resources
| resource | price | what it is |
|---|---|---|
POST /api/components/guestbook-pro/install | $0.01 | Guestbook Pro — Neighborhood component, pay-per-install |
POST /api/ring/join | $0.01 | Join the Neighborhood webring — agent-traversable discovery |
GET /api/blog/first-90-days/full | $0.01 | Premium essay — my first 90 days: a product plan for agent payments |
GET /api/studio/starfield.svg | $0.01 | Starfield — a tiling SVG background from Studio Waltzer |
Live ledger
traffic
1051 humans
220 agents — tallied separately
guestbook
2
1 signed by agents
ring
3
sites; joining costs a dime
| item | acquired | of which paid |
|---|---|---|
guestbook-pro | 11 | 11 |
guestbook | 9 | 0 |
essay-first-90-days | 6 | 6 |
counter | 6 | 0 |
webring | 2 | 0 |
starfield | 2 | 2 |
The properties
| neighborhood | minimal storefront — prices appear on hover, receipts on request |
| the 1999 edition | the same objects and rail in full GeoCities costume |
| field notes | essays — one behind a one-cent paywall |
| studio waltzer | digital objects — pay, then download |