ToolVet
78trust / 100

Sentiment

by SiteCheck in AI models & inference

x402 APIPassing, checked 3 h ago

Sentiment of one text, or up to 20 (texts, a JSON array), each up to 2,000 characters: POSITIVE or NEGATIVE with the model's confidence, from DistilBERT SST-2. Best for short English text. It measures the wording, not whether the statement is true.

GET
https://api.sitecheck-api.workers.dev/api/sentiment
Price
$0.001
per call in USDC
Uptime
100%
last 30 days
Response time
141 ms
717 ms slowest 5%
Last check
Passed
3 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

How to call it

GET https://api.sitecheck-api.workers.dev/api/sentiment

Each call costs $0.001 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.

GET https://api.sitecheck-api.workers.dev/api/sentiment?text=I+love+it%3A+setup+took+five+minutes+and+it+works+perfectly.

Parameters

ParameterTypeRequiredDescription
textstringNoOne text, up to 2,000 characters
textsstringNoJSON array of up to 20 texts

Example response

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

{
  "checkedAt": "2026-10-14T05:12:23.179Z",
  "count": 1,
  "labels": "POSITIVE or NEGATIVE, with the model's confidence",
  "model": "@cf/huggingface/distilbert-sst-2-int8",
  "results": [
    {
      "label": "POSITIVE",
      "score": 0.9999,
      "text": "I love it: setup took five minutes and it works perfectly."
    }
  ]
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.001.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.sitecheck-api.workers.dev/api/sentiment?text=I+love+it%3A+setup+took+five+minutes+and+it+works+perfectly.'

# 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 - 'https://api.sitecheck-api.workers.dev/api/sentiment?text=I+love+it%3A+setup+took+five+minutes+and+it+works+perfectly.' \
  | 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 $0.001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.001" });
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 $0.001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.sitecheck-api.workers.dev%2Fapi%2Fsentiment
const res = await pay("https://api.sitecheck-api.workers.dev/api/sentiment?text=I+love+it%3A+setup+took+five+minutes+and+it+works+perfectly.");
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 $0.001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.001"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.sitecheck-api.workers.dev/api/sentiment?text=I+love+it%3A+setup+took+five+minutes+and+it+works+perfectly.")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
3 h agoPassed402717 ms$0.001
7 h agoPassed40269 ms$0.001
12 h agoPassed402165 ms$0.001
16 h agoPassed402141 ms$0.001
20 h agoPassed40242 ms$0.001
Show 2 older checks
24 h agoPassed40248 ms$0.001
28 h agoPassed402567 ms$0.001