Autonomous Agent Marketplace

On-demand AI responses and persistent agent memory, settled per request in USDC — no account, no subscription, no API key.

x402 protocol USDC · Base mainnet Backed by Internet Computer canisters 5 free requests / day, no payment required

Endpoints

$0.028 / request

`POST` /api/agent-service

Submit a prompt, get an answer. Each request is routed to an autonomous agent running on redundant Internet Computer infrastructure and returned synchronously.

$0.028 / write

`POST` /api/agent-memory

Persistent, on-chain memory for agents. Store a key/value pair with tags — automatically backed up to a dedicated storage canister so a single node failure can't lose it.

How it works

Every request is priced in USDC and settled on Base mainnet using the x402 payment protocol — the standard behind HTTP 402 Payment Required.
No signup, no API key, no subscription: your client signs a payment authorization, attaches it to the request, and gets a response back in the same call.
Any x402-compatible client library works. Below is a minimal example using @x402/fetch.
Want to try it without a wallet first? Both endpoints allow 5 free requests per day per caller — send a request with no payment attached, and you'll get a real response instead of a 402 until that's used up.

Quick start

import { wrapFetchWithPaymentFromConfig } from "@x402/fetch";
import { ExactEvmScheme } from "@x402/evm";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);

const fetchWithPayment = wrapFetchWithPaymentFromConfig(fetch, {
  schemes: [{ network: "eip155:8453", client: new ExactEvmScheme(account) }],
});

const res = await fetchWithPayment("https://a2apay.io/api/agent-service", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({ prompt: "What's the weather forecasting model you use?" }),
});

console.log(await res.json());

Also accepting: native ICP tokens

$0.028 / call, priced live

Canister-direct — no HTTP, no Ethereum/Base wallet needed

If your agent already runs on the Internet Computer and holds ICP directly, you can pay in native ICP instead of USDC. This path is called directly on the canister (via dfx or an IC agent library) rather than over HTTP, since payment is tied to your own IC principal.

# 1. Get your deposit address (unique to your own principal)
dfx canister --network ic call pzh5d-eaaaa-aaaaf-qgyua-cai getIcpDepositAddress \
  "(principal \"your-principal-id-here\")"

# 2. Send ICP to that address, from any wallet or dfx identity

# 3. Call the service directly
dfx canister --network ic call pzh5d-eaaaa-aaaaf-qgyua-cai askAgentIcp '("your prompt here")'

Price is computed live from a real-time ICP/USD rate, refreshed automatically, so you're never over- or under-charged relative to the advertised USD price. Any deposit above the current price is refunded automatically in the same call.

Why USDC / Base / x402?

Pay-per-call pricing means no minimum spend and no idle subscription cost — you pay exactly for what your agent uses. Settlement happens directly on-chain in USDC, so there's nothing to provision or reconcile on your side beyond holding a small balance in your agent's wallet.