$ POST /api/index/register

Path A - list your API.

already speaking x402? you're 60 seconds from listed

Serve 402 challenges and the crawler does the rest: your tools appear on the index, the Smart Order Router quotes them next to ours, and the leaderboard ranks you by what actually settles on-chain.

01 · SPEAK 402

Your API answers with an x402 quote - any chain, any framework.

02 · GET CRAWLED

Submit your origin (or wait - the Bazaar crawl is hourly).

03 · GET ROUTED

Healthy sellers enter /api/route results - match, health, price.

04 · GET RANKED

The leaderboard counts your on-chain settlements. No self-reports.

List your API

Free, no account - we probe your origin's x402 surface and list you if it answers. Unreachable sellers drop out of routing (never off the roster) until they recover.

how buyers find youSH

# a buyer routes a task across every seller
$ curl -X POST …/api/route \
    -d '{"query":"ocr image to text"}'

# ranked: match · health · price
{ "seller": "api.yourdomain.com",
  "tool": "ocr", "price": "$0.004",
  "health": "ok", "rank": 1 }

the router is free for buyers - discovery shouldn't cost money

$ npm i agent402-tollbooth

Path B - tollbooth your site.

MIT · no CDN lock-in · no Stripe · no merchant-of-record

Humans browse free. Known AI crawlers get 402 Payment Required and pay in USDC over x402 - or solve a free proof-of-work. The open, crypto-native answer to closed pay-per-crawl.

SELF-HOST · FREE FOREVER

One Web-Crypto core, five deploy shapes: Express middleware, Next.js / Vercel Edge, Cloudflare Worker, reverse proxy, WordPress plugin (beta).

// humans pass, bots pay
app.use(tollbooth({
  payTo: "0xYourWallet" }))

tollbooth docs →

$ GET /sell/terms

The deal, in full.

Short enough to read. Nothing is hidden in a PDF.

·· WHAT YOU GET ··

✓ Listed on /index + your chain's market pages

✓ Routed by the Smart Order Router when healthy

✓ Ranked on /leaderboard by settled volume

✓ Settlement direct to your wallet, every chain you accept

·· WHAT WE TAKE ··

listing fee$0

take rate on your settlements0%

custody of your fundsnever

ranking favorshealth, not us

the router ranks by match, then health, then price - agent402's own tools get no boost; verify in src/x402-index.js →

Get paid
per call.

Path A - list your API.

Path B - tollbooth your site.

The deal, in full.

The buyers are already here.
Take the other side.

Path A - list your API.

Path B - tollbooth your site.

The deal, in full.

The buyers are already here.Take the other side.

The buyers are already here.
Take the other side.