Aroex Checking Open the desk

Private settlement · HTTP 402

Settlement for agents that spend.

Aroex is a private desk on the open x402 standard. An agent discovers a service, receives a price, and settles in USDC before the response is released. No API key. No subscription. No account.

Open the desk Read the guide
Sub-second
Arc testnet finality
< 0.001
Typical fee, in USD
402
The only credential
This desk
  • Arc testneteip155:5042002 · exact · USDC
Facilitator
  • Checking supported networks…

Start

Three steps. Then the body unlocks.

  1. 01

    Add Arc testnet

    Chain 5042002. RPC rpc.testnet.arc.network. The wallet pays gas in USDC.

  2. 02

    Take testnet USDC

    Use the Circle faucet on Arc Testnet. The 402 prices are fractions of one USDC.

  3. 03

    Pay the 402

    Dispatch a service, then Pay with wallet. A code client sends PAYMENT-SIGNATURE on the retry.

Full guide

01 — Protocol

Four movements.
One response.

GET /v1/brief HTTP/1.1
accept: application/json
CardAroex
Fee2.9% + 0.30under 0.001
FinalityDays, in batchAbout 2 seconds
ReversalChargeback windowFinal
Who paysA cardholderAn agent with a wallet
SetupAccount, key, planA 402 response

02 — Capabilities

Twelve ways
an agent pays.

  1. 01

    Pay-per-inference

    The model is a merchant. Each response carries a posted price in USDC.

    exact
  2. 02

    Bazaar discovery

    The agent queries a catalog, reads the schema, and chooses before it calls.

    /discovery/search
  3. 03

    Paid MCP tools

    A tool call is a resource. Payment clears, then the tool runs.

    mcp
  4. 04

    Facilitator

    The desk verifies the signature and submits settlement on Arc testnet.

    /verify · /settle
  5. 05

    Exact scheme

    One price, one authorization, one transfer. The amount cannot drift.

    EIP-3009
  6. 06

    Up-to scheme

    Metered work carries a ceiling. The desk settles only the amount used.

    upto
  7. 07

    Spend policy

    A per-call cap, a session budget, and an allowlist of payees.

    policy
  8. 08

    Approval gate

    Above the threshold the signature waits. A principal releases it.

    hold
  9. 09

    Gasless authorization

    The agent signs transferWithAuthorization. Gas is the facilitator’s concern.

    gasless
  10. 10

    Multi-rail routing

    This desk settles exact USDC on Arc testnet. The 402 names eip155:5042002.

    CAIP-2
  11. 11

    Signed receipt

    The response includes PAYMENT-RESPONSE and the transaction hash.

    tx
  12. 12

    Session budget

    An allowance delegated to one agent, for one task. Then it expires.

    session

03 — The desk

Run a call.

Dispatch calls the live resource server. An unpaid request returns HTTP 402 on Arc testnet. Pay with a wallet to release the body.

$Aroex

Every x402 payment is shared with holders.

Settled USDC is sent to the reward contract. A holder’s share is their $Aroex balance divided by the supply. Look up any address.

Contract
Loading
Distributed
—
Still to assign
—
Supply
—

Paste an address to see its $Aroex balance and claimable USDC.

ArcScan Contract source

Agent

Atelier-04

0x41e2…9c02 · delegated session

Resource server · Arc testnet

Session budget 0.200 USDC

Cap 0.100Gate 0.050Allowlist on

Handshake

Idle

  1. Request
  2. 402
  3. Authorize
  4. Verify
  5. Settle
Select a service.
Dispatch the agent.

Return

The body is released after settlement.

04 — Bazaar

Services on the floor.

12 services

05 — Ledger

What this session saw.

Each row is a live response from this origin. The house record below is a sample.

Sample house record

The house record is a sample. A live call does not settle until an x402 client pays the 402.

06 — Client

Call the live routes.

An unpaid request returns HTTP 402. Pay on Arc testnet to finish it. The full walkthrough is in the guide.

Copy a client for the service selected on the desk. The resource server is this origin. Settlement runs on the desk facilitator at /facilitator.

Checking the facilitator…

            

          

        

      


      

        

          

            

              
07 — Atlas

              
Eighty tools.
One desk.

            

            
Search, price, policy, and a live 402 on Arc testnet. The facilitator list is what this desk settles.

          

          

          

            

            
          

        

      


      

        

          

            
08 — Access

            
Use the desk.

            

              Add Arc testnet, take USDC from the faucet, then pay a 402.
              The guide walks through the wallet and a code client.
            

          

          

            Open the guide
            Pay a service
          

        

      

    


    
    
    

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