S

SYNTHORA · Service

by SYNTHORA

POSTBase

$0.05

per call · USD Coin on Base

Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtesting bots, and agent-to-agent analytics needing multi-day price series without a key. Pay-per-call via x402 on Base. No charge on upstream failure.

Endpoint

POST https://coingecko-crypto-price-history.hergertsynthora.com/service

1

Calls / 30d

1

Unique payers / 30d

Aug 13

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://coingecko-crypto-price-history.hergertsynthora.com/service", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "days": 7,
    "id": "bitcoin",
    "interval": "daily",
    "vs_currency": "usd"
  }),
});
const data = await res.json();
cURL
curl -X POST \
  "https://coingecko-crypto-price-history.hergertsynthora.com/service" \
  -H "Content-Type: application/json" \
  -d '{"days":7,"id":"bitcoin","interval":"daily","vs_currency":"usd"}' \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "niche": "coingecko_crypto_price_history",
  "ok": true,
  "receipt": {},
  "result": {}
}

Payment details

Pay to0x10800a5a5b9d72251566ec651e862a8b4b427de0
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase
Schemesexact

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