ToolVet
75trust / 100

Brief

by OmniProvider in Onchain & crypto

x402 APIPassing, checked 2 h ago

Pay-per-call cited research brief. The request carries a query and 1 to 12 quotes with source URLs; the response is a short brief that cites only those quotes, at 0.008 USDC per call on Base. Payment settles after the brief is produced. A client nonce header makes a retry free of a second charge.

POST
https://pay.omnidev.tech/x402/brief
Price
$0.008
per call in USDC
Uptime
100%
last 30 days
Response time
468 ms
646 ms slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

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

How to call it

POST https://pay.omnidev.tech/x402/brief

Each call costs $0.008 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

From the listing.

POST https://pay.omnidev.tech/x402/brief
content-type: application/json

{
  "citations": [
    {
      "quote": "Payment settles after the response is produced.",
      "url": "https://example.com/doc"
    }
  ],
  "max_tokens": 200,
  "query": "What does the source say about settlement timing?"
}

Parameters

ParameterTypeRequiredDescription
citationsarray of objectYes
max_tokensintegerNo
querystringYes

Example response

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

{
  "ok": true,
  "result": {
    "brief": "Settlement happens after the response is produced [1].",
    "citations": [
      {
        "quote": "Payment settles after the response is produced.",
        "url": "https://example.com/doc"
      }
    ],
    "cited": [
      1
    ]
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.008.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://pay.omnidev.tech/x402/brief' \
  -H 'content-type: application/json' \
  --data-raw '{"citations":[{"quote":"Payment settles after the response is produced.","url":"https://example.com/doc"}],"max_tokens":200,"query":"What does the source say about settlement timing?"}'

# 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://pay.omnidev.tech/x402/brief' \
  -H 'content-type: application/json' \
  --data-raw '{"citations":[{"quote":"Payment settles after the response is produced.","url":"https://example.com/doc"}],"max_tokens":200,"query":"What does the source say about settlement timing?"}' \
  | 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 $0.008 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.008" });
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 $0.008 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fpay.omnidev.tech%2Fx402%2Fbrief&method=POST
const res = await pay("https://pay.omnidev.tech/x402/brief", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "citations": [
      {
        "quote": "Payment settles after the response is produced.",
        "url": "https://example.com/doc"
      }
    ],
    "max_tokens": 200,
    "query": "What does the source say about settlement timing?"
  }),
});
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 $0.008 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.008"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://pay.omnidev.tech/x402/brief",
        json={
            "citations": [
                {
                    "quote": "Payment settles after the response is produced.",
                    "url": "https://example.com/doc",
                },
            ],
            "max_tokens": 200,
            "query": "What does the source say about settlement timing?",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402457 ms$0.008
7 h agoPassed402468 ms$0.008
12 h agoPassed402477 ms$0.008
18 h agoPassed402467 ms$0.008
22 h agoPassed402646 ms$0.008