S

Seneschal · Q Proposer Payment

by Seneschal

GETBase

$0.001

per call · USD Coin on Base

Single-fact: what did the proposer of the latest block ACTUALLY get paid (priority fees + direct coinbase transfers — the value that reaches the validator, not the noisy block-value proxy)? Returns {block, proposer_payment_eth, builder, tx_count} plus a 1h aggregate {samples, mean_eth, median_eth, p90_eth, max_eth}. Per-block history export: /v1/premium/builder-bids.csv ($0.05, CSV or JSONL).

Endpoint

GET https://api.seneschal.space/v1/q/proposer-payment

4

Calls / 30d

3

Unique payers / 30d

Sep 8

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://api.seneschal.space/v1/q/proposer-payment", {
  method: "GET",
});
const data = await res.json();
cURL
curl -X GET \
  "https://api.seneschal.space/v1/q/proposer-payment" \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "as_of_ms": 1765532000000,
  "block": 23012001,
  "builder": "titan",
  "history_endpoint": "/v1/premium/builder-bids.csv",
  "hour": {
    "max_eth": 0.41,
    "mean_eth": 0.0182,
    "median_eth": 0.0121,
    "p90_eth": 0.0388,
    "samples": 291
  },
  "proposer_payment_eth": 0.010354286,
  "proposer_payment_wei": "10354286568285197",
  "source_freshness_s": 9,
  "ts_ms": 1765531988000,
  "tx_count": 309
}

Payment details

Pay to0x46ba634261566cf242c853d1f49511f9268ba674
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase
Schemesexact

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