ToolVet
75trust / 100

Crypto Price History

by Saylor Innovations Data Desk in Onchain & crypto

x402 APIPassing, checked 2 h ago

Crypto price on a past date - USD price of up to 5 coins on any day since 2013 with change and multiple versus today

GET
https://saylorinnovations.com/api/crypto/price-history
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
376 ms
487 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://saylorinnovations.com/api/crypto/price-history

Each call costs $0.01 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://saylorinnovations.com/api/crypto/price-history?coins=bitcoin%2Cethereum&date=2024-01-01

Parameters

ParameterTypeRequiredDescription
coinsstringYescomma list of up to 5 CoinGecko ids (bitcoin, ethereum, solana) or chain:address
datestringYespast date as YYYY-MM-DD

Example response

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

Example response, 28 lines
{
  "coins": [
    {
      "change_pct": 92.1,
      "coin": "bitcoin",
      "confidence": 0.99,
      "multiple": 1.921,
      "price_now_usd": 82013.29853249017,
      "price_then_at": "2024-01-01T11:59:58.000Z",
      "price_then_usd": 42694,
      "symbol": "BTC"
    },
    {
      "change_pct": 6.78,
      "coin": "ethereum",
      "confidence": 0.99,
      "multiple": 1.068,
      "price_now_usd": 2459.8750549728,
      "price_then_at": "2024-01-01T11:59:49.000Z",
      "price_then_usd": 2303.7,
      "symbol": "ETH"
    }
  ],
  "date": "2024-01-01",
  "days_ago": 1015,
  "not_found": [],
  "source": "DefiLlama coins API"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://saylorinnovations.com/api/crypto/price-history?coins=bitcoin%2Cethereum&date=2024-01-01'

# 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://saylorinnovations.com/api/crypto/price-history?coins=bitcoin%2Cethereum&date=2024-01-01' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fsaylorinnovations.com%2Fapi%2Fcrypto%2Fprice-history
const res = await pay("https://saylorinnovations.com/api/crypto/price-history?coins=bitcoin%2Cethereum&date=2024-01-01");
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://saylorinnovations.com/api/crypto/price-history?coins=bitcoin%2Cethereum&date=2024-01-01")
    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 agoPassed402487 ms$0.01
6 h agoPassed402376 ms$0.01
11 h agoPassed402362 ms$0.01