Signal

{
  "cached": false,
  "cached_at": null,
  "chain": "ethereum",
  "change_24h_pct": 1.2,
  "data_source": "coingecko",
  "indicators": {
    "atr": {
      "assessment": "Normal volatility",
      "value": 2500.5
    },
    "bollinger": {
      "assessment": "Price above middle band (1.0%) - mild bullish bias",
      "lower": 100000,
      "middle": 104000,
      "upper": 108000
    },
    "ema": {
      "ema_20": 104800,
      "ema_200": 96000,
      "ema_50": 102500,
      "trend": "Bullish (above short EMA)"
    },
    "fractals": {
      "assessment": "Fractal analysis requires more context",
      "bearish": false,
      "bullish": false
    },
    "macd": {
      "histogram": 25.3,
      "macd": 120.5,
      "signal": 95.2,
      "trend": "Bullish momentum"
    },
    "rsi": {
      "assessment": "neutral momentum",
      "value": 58.5,
      "zone": "Neutral"
    },
    "sma": {
      "sma_20": 104500,
      "sma_200": 95000,
      "sma_50": 102000,
      "trend": "Bullish (above short MA)"
    },
    "stochastic": {
      "assessment": "Neutral",
      "percent_k": 65.2
    },
    "volume": {
      "assessment": "Volume data present",
      "latest": 45000000000
    },
    "vwma": {
      "comparison": "volume-weighted price above SMA - bullish confirmation",
      "vwma_20": 104200
    }
  },
  "market_cap": 2100000000000,
  "notes": [],
  "price": 105000.12,
  "resolved_name": "Bitcoin",
  "timeframe": "1d",
  "timestamp": "2026-06-02T12:00:00.000Z",
  "token": "BTC",
  "volume_24h": 45000000000
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://signal.quickai.build/signal?timeframe=1d&token=BTC'

# 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://signal.quickai.build/signal?timeframe=1d&token=BTC' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// 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 $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
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 $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fsignal.quickai.build%2Fsignal
const res = await pay("https://signal.quickai.build/signal?timeframe=1d&token=BTC");
console.log(res.status, await res.text());

# 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 $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://signal.quickai.build/signal?timeframe=1d&token=BTC")
    print(res.status_code, res.text)