x402 · MPP · Robinhood Chain

The toll network
for AI agents.

Agents pay per request in stablecoins. TOLLA puts a cap on every wallet, a health check on every merchant and a receipt on every toll.

Explore Lanes → How it works

Live Lanes and Scan read the public x402 index. Booth, Pass and Plates are in beta.

x402HTTP 402 MPPMachine Payments ERC-8004Agent identity USDGStablecoin Robinhood Chain4663 MCPAgent tools

01 · How a toll clears

One request.
One toll. One receipt.

An agent calls an API. The API names its price with HTTP 402. The agent's Pass checks the cap, signs, and the toll settles on-chain before the answer comes back.

  1. 01

    Agent calls

    Any HTTP request to a paid API. No account, no API key.

    GET /v1/forecast
  2. 02

    Booth quotes

    The merchant answers 402 Payment Required with a price and where to pay.

    402 · 0.002 USDG
  3. 03

    Pass checks the cap

    Per call, per day, per merchant. Over the cap, nothing is signed.

    within cap → sign

Prices in this diagram are an example. Steps 03 to 05 run through Pass and Booth, which are in beta.

02 · The network

Six booths.
One road.

Every part of an agent payment has its own booth. Each one carries its real status: live, beta (shipped and settling real tolls, still changing) or in build.

03 · Right now on x402

Counted by wallets
that actually paid.

Listings are cheap. Paying wallets aren't. Scan ranks the x402 economy by distinct paying wallets in the last 30 days and flags lanes where a few wallets make most of the calls.

Loading the x402 index…Open Scan →

04 · Rules of the road

Built so an agent
can't overspend.

Agent wallets fail in boring ways: no limits, keys in plain text, paying for errors, numbers nobody can check. These are the rules TOLLA is built on, each marked with where it stands today.

05 · Where it settles

Built to settle on Robinhood Chain.
Priced in dollars.

Network
Robinhood Chain · chain ID 4663
Toll currency
USDG stablecoin, 6 decimals
Protocols
x402 and MPP (evm charge)
Agent identity
ERC-8004 registries

06 · Early access

Get a Pass
when it opens.

One email when Pass leaves beta. Nothing else, never shared.

I am

Protected by Cloudflare Turnstile. One email at launch. See Privacy.

Token status

Checking the official contract list. It is also at /.well-known/tolla.json, and announcements come from @useTOLLA.