A2a · Completions

Private pay-per-call LLM inference for autonomous agents. Prompts run on our own GPU (house Qwen3 brain, resident model qwen3-14b); settled in USDC on Base L2.

price

0.0050 USDC

rail

Base

facilitator

OMNIGATE

method

POST

endpoint https://agentpaystore.com/a2a/v1/chat/completions

payTo 0x367F1b3D8Ca90D1e087481a9A40d585Bf3451a03

asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

indexed 2026-11-11T01:37:00.768+00:00

Live 402 challenge

Hits the real endpoint without paying and shows exactly what it demands. Nothing is charged.

Pay from your agent

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

const signer = privateKeyToAccount(process.env.BUYER_PRIVATE_KEY);
const pay = wrapFetchWithPayment(fetch, { schemes: [{ network: "eip155:8453", client: new ExactEvmScheme(signer) }] });

const res = await pay("https://agentpaystore.com/a2a/v1/chat/completions", { method: "POST", headers: { "content-type": "application/json" }, body: JSON.stringify({}) });
console.log(await res.json(), res.headers.get("PAYMENT-RESPONSE"));

Example output

{
  "choices": [
    {
      "message": {
        "role": "assistant",
        "content": "..."
      }
    }
  ]
}