ToolVet
78trust / 100

Mentions

by agentshelf.syntexa.ch in Developer tools

x402 APIPassing, checked 4 h ago

Call when an agent needs a structured brand or product mention brief from public web sources: theme clusters, sentiment, and short licensed samples. Use it to see how a name is discussed before drafting a reply. Send JSON {"query":"acme widgets","lookback_days":30,"sources":["web","reviews"],"limit":40,"lang":"en"}. Exact $0.02 USDC on Base. Try unpaid POST /v1/sandbox/mentions first.

POST
https://agentshelf.syntexa.ch/v1/mentions
Price
$0.02
per call in USDC
Uptime
100%
last 30 days
Response time
30 ms
243 ms slowest 5%
Last check
Passed
4 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://agentshelf.syntexa.ch/v1/mentions

Each call costs $0.02 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://agentshelf.syntexa.ch/v1/mentions
content-type: application/json

{
  "lang": "en",
  "limit": 40,
  "lookback_days": 30,
  "query": "acme widgets",
  "sources": [
    "web",
    "reviews"
  ]
}

Parameters

ParameterTypeRequiredDescription
geostringNoOptional region filter, 2–32 characters. Omit it to search without a geo limit.
langstringNoLanguage code such as en. Default en. Default: "en".
limitintegerNoMaximum samples to return, from 10 to 100. Default 40. Default: 40.
lookback_daysintegerNoHow many days back to search, from 1 to 90. Default 30. Default: 30.
querystringYesBrand or product name to search, 2–80 characters. Example: acme widgets.
sourcesarray of stringNoSources to query. Any of reddit, web, reviews, x. Default web and reviews. Default: ["web","reviews"].

Example response

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

{
  "billed": true,
  "ok": true,
  "receipt_id": "rcpt_01EXAMPLE000000000000000",
  "samples": [
    {
      "license": "serper",
      "source": "web",
      "text": "Acme Widgets generally available for public evaluation.",
      "url": "https://example.com/widget"
    }
  ],
  "themes": [
    {
      "count": 4,
      "label": "launch coverage",
      "sentiment": "positive"
    }
  ],
  "totals": {
    "mentions": 12,
    "sources_ok": 2
  },
  "warnings": []
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.02.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://agentshelf.syntexa.ch/v1/mentions' \
  -H 'content-type: application/json' \
  --data-raw '{"lang":"en","limit":40,"lookback_days":30,"query":"acme widgets","sources":["web","reviews"]}'

# 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://agentshelf.syntexa.ch/v1/mentions' \
  -H 'content-type: application/json' \
  --data-raw '{"lang":"en","limit":40,"lookback_days":30,"query":"acme widgets","sources":["web","reviews"]}' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagentshelf.syntexa.ch%2Fv1%2Fmentions&method=POST
const res = await pay("https://agentshelf.syntexa.ch/v1/mentions", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "lang": "en",
    "limit": 40,
    "lookback_days": 30,
    "query": "acme widgets",
    "sources": [
      "web",
      "reviews"
    ]
  }),
});
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://agentshelf.syntexa.ch/v1/mentions",
        json={
            "lang": "en",
            "limit": 40,
            "lookback_days": 30,
            "query": "acme widgets",
            "sources": [
                "web",
                "reviews",
            ],
        },
    )
    print(res.status_code, res.text)

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