Crypto Indicators
by SiteCheck in Onchain & crypto
Technical indicators for one crypto pair and interval, computed from the last 60 to 300 candles: SMA and EMA for the periods you give (default SMA 20, 50, 200; EMA 12, 26), RSI 14 (Wilder), MACD 12/26/9, Bollinger 20/2, ATR 14, the latest values, and a plain trend note (above or below the 200 average, overbought or oversold). Candles come from Coinbase; the newest candle may still be forming. Information only, not financial advice.
https://api.sitecheck-api.workers.dev/api/crypto/indicators- Price
- $0.002
- per call in USDC
- Uptime
- 100%
- last 30 days
- Response time
- 42 ms
- 971 ms slowest 5%
- Last check
- Passed
- 4 h ago, next any minute now
Reliability
Status and outage history · Atom feed · Watch with other listings
How to call it
GET https://api.sitecheck-api.workers.dev/api/crypto/indicators
Each call costs $0.002 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/crypto/indicators?granularity=1h&limit=300&pair=BTC-USDParameters
| Parameter | Type | Required | Description |
|---|---|---|---|
ema | string | No | Comma-separated EMA periods, up to 5, each 2 to 200 (default 12,26) |
granularity | string | No | Candle size: 1m, 5m, 15m, 1h (default), 6h or 1d |
limit | string | No | Candles to use, 60 to 300, default 300 |
pair | string | Yes | Coinbase pair like BTC-USD or ETH-USD |
sma | string | No | Comma-separated SMA periods, up to 5, each 2 to 200 (default 20,50,200) |
Example response
The provider's example. We can't check it without paying.
Example response, 36 lines
{
"atr14": 561.806146,
"bollinger": {
"lower": 80394.319383,
"middle": 81230.557,
"percentB": 0.1218,
"upper": 82066.794617
},
"candles": 300,
"checkedAt": "2026-10-15T13:40:00.786Z",
"disclaimer": "Information only, not financial advice.",
"ema": {
"ema12": 81001.755221,
"ema26": 81454.552089
},
"granularity": "1h",
"lastCandle": "2026-10-15T13:00:00.000Z",
"macd": {
"histogram": -8.731757,
"line": -452.796868,
"signal": -444.065111
},
"pair": "BTC-USD",
"price": 80597.97,
"rsi14": 37.3582,
"sma": {
"sma20": 81230.557,
"sma200": 82743.08615,
"sma50": 82328.0098
},
"source": "Coinbase Exchange public market data (candles), newest first; indicators computed here (SMA, EMA, RSI 14 Wilder, MACD 12/26/9, Bollinger 20/2, ATR 14 Wilder)",
"trend": {
"rsi": "neutral",
"vsSma200": "below the 200-period average"
}
}Call it from code
The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.002.
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/crypto/indicators?granularity=1h&limit=300&pair=BTC-USD'
# 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/crypto/indicators?granularity=1h&limit=300&pair=BTC-USD' \
| grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decodeJavaScript: 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 $0.002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.002" });
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 $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.sitecheck-api.workers.dev%2Fapi%2Fcrypto%2Findicators
const res = await pay("https://api.sitecheck-api.workers.dev/api/crypto/indicators?granularity=1h&limit=300&pair=BTC-USD");
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 $0.002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.002"})
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/crypto/indicators?granularity=1h&limit=300&pair=BTC-USD")
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
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 4 h ago | Passed | 402 | 35 ms | $0.002 |
| 9 h ago | Passed | 402 | 971 ms | $0.002 |
| 13 h ago | Passed | 402 | 42 ms | $0.002 |