ToolVet
78trust / 100

Crypto Movers

by api.xynaptic.io in Onchain & crypto

x402 APIPassing, checked 2 h ago

Xynaptic Crypto Movers — top gainers and losers 24h with volume filter (CoinMarketCap Pro): clean lists of real movers, not low-liquidity scams, with prices and % changes. GET (?limit=5).

GET
https://api.xynaptic.io/v1/crypto-movers
Price
$0.02
per call in USDC
Uptime
100%
last 30 days
Response time
60 ms
304 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

GET https://api.xynaptic.io/v1/crypto-movers

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.

GET https://api.xynaptic.io/v1/crypto-movers

Example response

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

{
  "gainers": 5,
  "losers": 5,
  "service": "crypto-movers",
  "summary": "Top movers 24h (volume-filtered): 5 gainers, 5 losers.",
  "top": {
    "chg_24h": 3.2,
    "symbol": "BTC"
  }
}

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 'https://api.xynaptic.io/v1/crypto-movers'

# 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.xynaptic.io/v1/crypto-movers' \
  | 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%2Fapi.xynaptic.io%2Fv1%2Fcrypto-movers
const res = await pay("https://api.xynaptic.io/v1/crypto-movers");
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.get("https://api.xynaptic.io/v1/crypto-movers")
    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 agoPassed402203 ms$0.02
7 h agoPassed402183 ms$0.02
11 h agoPassed40256 ms$0.02
16 h agoPassed40249 ms$0.02
20 h agoPassed402147 ms$0.02
Show 10 older checks
24 h agoPassed402106 ms$0.02
28 h agoPassed402222 ms$0.02
33 h agoPassed40247 ms$0.02
37 h agoPassed40261 ms$0.02
41 h agoPassed40249 ms$0.02
46 h agoPassed402460 ms$0.02
2 days agoPassed40260 ms$0.02
2 days agoPassed40282 ms$0.02
2 days agoPassed402163 ms$0.02
3 days agoPassed40239 ms$0.02