$0.001
per call · USD Coin on Base
Recommended Bitcoin transaction fee rates in sat/vB (fastest, half-hour, hour, economy, minimum) from mempool.space, computed from the live mempool. Optional ?include=difficulty adds the current difficulty retarget estimate (change %, remaining blocks/time). No required params; served with a 60s cache.
Endpoint
GET https://data.greeneris.io/v1/btc/fees130
Calls / 30d
1
Unique payers / 30d
Aug 28
Last called
exact
Payment scheme
Call this service
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://data.greeneris.io/v1/btc/fees", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://data.greeneris.io/v1/btc/fees?include=difficulty" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"difficulty_adjustment": {
"difficulty_change_percent": -2.74,
"estimated_retarget_date_ms": 1753728000000,
"progress_percent": 11.06,
"remaining_blocks": 1793,
"remaining_time_ms": 1093000000
},
"fees_sat_per_vb": {
"economy": 1,
"fastest": 2,
"half_hour": 1,
"hour": 1,
"minimum": 1
},
"source": "mempool.space (live mempool snapshot)"
}Payment details
0x6ab8efe305cce67daa48c97bde29c04402822dffUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
Pin it to the top of Onchain Data and the homepage with a featured placement.
More from eu-verify & similar services
eu-verify · EU Company Check
data.greeneris.io
One-call verification of a European company: official registry existence and status, insolvency signals, VAT (VIES), LEI (GLEIF), sanctions screening (EU/OFAC/UN/UK/FR), EORI and domain age, condensed into a pass/review/fail verdict with per-check source, timestamp and an explicit coverage map. Query: country=FR (FR, UK, IE, NO, FI, SK, PL, CZ, CH) and id=552032534 (national registry number). Factual verification, not a credit score. Buyers are never charged on failure.
eu-verify · Global LEI
data.greeneris.io
Legal entity reference data from the GLEIF LEI golden copy (updated daily, CC0). Direct lookup: ?lei=529900FCMZ4LKXFD0R69. Search: ?name=airbus&country=FR&limit=5. Each result: lei, legal_name, entity_status, registration_status (ISSUED/LAPSED), jurisdiction, legal_form_id, hq_city/country, next_renewal_date. 24h cache.
eu-verify · LEI Ownership
data.greeneris.io
Who owns whom, from the official GLEIF LEI graph (CC0 licensed, covers 2.5M+ legal entities worldwide). Query: ?lei=5493001KJTIIGC8Y1R12. Four GLEIF lookups in one call: entity name and status, declared direct parent, ultimate parent, plus the total count and a 10-entity sample of direct children. Unknown LEI returns found=false. 24h cache.