ToolVet
78trust / 100

Sentiment

by AllTheBot Sentiment analysis in News & content

x402 APIPassing, checked 1 h ago

Sentiment analysis API: classify text as positive / negative / neutral / mixed with a -1 to +1 score, confidence and a short reason. Reviews, tweets, support tickets; any language, JSON output.

GET
https://api.zkrobotics.fr/x402/sentiment
Price
$0.003
per call in USDC
Uptime
100%
last 30 days
Response time
226 ms
415 ms slowest 5%
Last check
Passed
1 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

GET https://api.zkrobotics.fr/x402/sentiment

Each call costs $0.003 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.zkrobotics.fr/x402/sentiment?text=Fast+delivery%2C+but+the+product+arrived+damaged+and+customer+service+was+very+disappointing.

Parameters

ParameterTypeRequiredDescription
textstringYes

Example response

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

{
  "result": {
    "confidence": 0.9,
    "label": "mixed",
    "reason": "Fast delivery is praised, but the damaged product and poor service dominate.",
    "score": -0.4
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.003.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.zkrobotics.fr/x402/sentiment?text=Fast+delivery%2C+but+the+product+arrived+damaged+and+customer+service+was+very+disappointing.'

# 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.zkrobotics.fr/x402/sentiment?text=Fast+delivery%2C+but+the+product+arrived+damaged+and+customer+service+was+very+disappointing.' \
  | 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 $0.003 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.003" });
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 $0.003 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.zkrobotics.fr%2Fx402%2Fsentiment
const res = await pay("https://api.zkrobotics.fr/x402/sentiment?text=Fast+delivery%2C+but+the+product+arrived+damaged+and+customer+service+was+very+disappointing.");
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 $0.003 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.003"})
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.zkrobotics.fr/x402/sentiment?text=Fast+delivery%2C+but+the+product+arrived+damaged+and+customer+service+was+very+disappointing.")
    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
1 h agoPassed402225 ms$0.003
5 h agoPassed402226 ms$0.003
8 h agoPassed402294 ms$0.003
11 h agoPassed402235 ms$0.003
14 h agoPassed402285 ms$0.003
Show 10 older checks
17 h agoPassed402188 ms$0.003
20 h agoPassed402160 ms$0.003
23 h agoPassed402192 ms$0.003
27 h agoPassed402235 ms$0.003
33 h agoPassed402226 ms$0.003
38 h agoPassed402822 ms$0.003
43 h agoPassed402213 ms$0.003
2 days agoPassed402176 ms$0.003
2 days agoPassed402349 ms$0.003
2 days agoPassed402415 ms$0.003