ToolVet
75trust / 100

Btc Fees

by Agent Data Tools in Onchain & crypto

x402 APIPassing, checked 2 h ago

Current Bitcoin network fee rates in sat/vB for next-block, half-hour, one-hour and economy confirmation, the estimated cost in sats of a typical payment, mempool size and total pending fees, and the latest block height. Use before sending a Bitcoin transaction or to decide whether to wait for lower fees.

GET https://agent-data-tools.revmesh2074.workers.dev/btc-fees

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
713 ms typical, 1.2 s slowest 5%
Last check
2 h ago
Next check
any minute now

How to call it

GET https://agent-data-tools.revmesh2074.workers.dev/btc-fees

Each call costs $0.0002 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://agent-data-tools.revmesh2074.workers.dev/btc-fees

Example response

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

{
  "blockHeight": 970000,
  "fees": {
    "economy": 1,
    "halfHour": 3,
    "hour": 1,
    "minimum": 1,
    "nextBlock": 4
  },
  "mempool": {
    "totalFeesBtc": 0.1093664,
    "transactions": 83832,
    "vsize": 42066150
  },
  "network": "bitcoin",
  "typicalPaymentSats": {
    "hour": 141,
    "nextBlock": 564
  },
  "unit": "sat/vB"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.0002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://agent-data-tools.revmesh2074.workers.dev/btc-fees'

# 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://agent-data-tools.revmesh2074.workers.dev/btc-fees' \
  | 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 $0.0002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.0002" });
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 $0.0002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagent-data-tools.revmesh2074.workers.dev%2Fbtc-fees
const res = await pay("https://agent-data-tools.revmesh2074.workers.dev/btc-fees");
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 $0.0002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.0002"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://agent-data-tools.revmesh2074.workers.dev/btc-fees")
    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 agoPassed4021.3 s$0.0002
6 h agoPassed402763 ms$0.002
10 h agoPassed402921 ms$0.002
14 h agoPassed4021.2 s$0.002
17 h agoPassed402566 ms$0.002
21 h agoPassed402564 ms$0.002
25 h agoPassed402879 ms$0.002
29 h agoPassed402648 ms$0.002
33 h agoPassed4021.1 s$0.002
36 h agoPassed402627 ms$0.002
40 h agoPassed402744 ms$0.002
43 h agoPassed402551 ms$0.002
47 h agoPassed402793 ms$0.002
2 days agoPassed402699 ms$0.002
2 days agoPassed40246 ms$0.002

History

14 Oct 2026Price changed from $0.002 to $0.0002