ToolVet
77trust / 100

Chat Completions

by agentpaystore.com in AI models & inference

x402 APIPassing, checked 2 h ago

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.

POST
https://agentpaystore.com/a2a/v1/chat/completions
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
466 ms
669 ms slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed · Watch with other listings

How to call it

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

Each call costs $0.005 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

The listing has no example input.

POST https://agentpaystore.com/a2a/v1/chat/completions
content-type: application/json

{}

Example response

The provider's example. We can't check it without paying.

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

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.005.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://agentpaystore.com/a2a/v1/chat/completions' \
  -H 'content-type: application/json' \
  --data-raw '{}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://agentpaystore.com/a2a/v1/chat/completions' \
  -H 'content-type: application/json' \
  --data-raw '{}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagentpaystore.com%2Fa2a%2Fv1%2Fchat%2Fcompletions&method=POST
const res = await pay("https://agentpaystore.com/a2a/v1/chat/completions", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({}),
});
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://agentpaystore.com/a2a/v1/chat/completions",
        json={},
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402575 ms$0.005
7 h agoPassed402583 ms$0.005
12 h agoPassed402594 ms$0.005
17 h agoPassed402602 ms$0.005
21 h agoPassed402505 ms$0.005
Show 10 older checks
26 h agoPassed402576 ms$0.005
31 h agoPassed402570 ms$0.005
35 h agoPassed402577 ms$0.005
39 h agoPassed402569 ms$0.005
43 h agoPassed402450 ms$0.005
47 h agoPassed402621 ms$0.005
2 days agoPassed402443 ms$0.005
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3 days agoPassed402595 ms$0.005
3 days agoPassed402446 ms$0.005