ToolVet
80trust / 100

Btc Block

by btc-block in Onchain & crypto

x402 APIPassing, checked 2 h ago

Bitcoin block metadata by height or hash (or the chain tip when neither is given), fused with the current difficulty-adjustment context, a computed halving countdown and a network hashrate snapshot. Informational, not advice.

GET https://api.agentstools.dev/btc/block

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
27 ms typical, 93 ms slowest 5%
Last check
2 h ago
Next check
any minute now

How to call it

GET https://api.agentstools.dev/btc/block

Each call costs $0.008 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.agentstools.dev/btc/block?height=800000

Parameters

ParameterTypeRequiredDescription
hashstringNoBlock hash (64 hex characters); alternative to height
heightintegerNoBlock height; omit height and hash for the chain tip

Example response

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

{
  "block": {
    "confirmations": 157155,
    "difficulty": 53911173001054.586,
    "height": 800000,
    "tx_count": 3721
  },
  "difficulty_adjustment": {
    "progress_percent": 77.9,
    "remaining_blocks": 445
  },
  "halving": {
    "blocks_until_halving": 92845,
    "current_block_subsidy_btc": 3.125,
    "next_halving_height": 1050000
  },
  "hashrate": {
    "current_hashrate_ehs": 907.29
  },
  "sources": {
    "partial": false
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.008.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.agentstools.dev/btc/block?height=800000'

# 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.agentstools.dev/btc/block?height=800000' \
  | 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 $0.008 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.008" });
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 $0.008 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.agentstools.dev%2Fbtc%2Fblock
const res = await pay("https://api.agentstools.dev/btc/block?height=800000");
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 $0.008 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.008"})
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.agentstools.dev/btc/block?height=800000")
    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 agoPassed40227 ms$0.008
6 h agoPassed40293 ms$0.008
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