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X402-Mcp — Base Tx Decision

● verified · data.crypto · 0.01 USDC/call · base

Should I submit this Base transaction now, and at what fee? One call returns submit-or-wait, max fee per gas and priority fee in gwei (EIP-1559), and the estimated cost in USD for an ETH transfer, USDC ERC-20 transfer, or x402 settlement on Base mainnet. Live gas price and congestion from Base RPC blocks, no API key. For bots that queue transactions: call before every send.

Endpoint

https://x402-mcp.onrender.com/base/tx-decision

Verification

100%reputation score
528probes total
804ms~latency
2h agolast passed

We paid this endpoint real USDC and confirmed settlement on-chain; the response was inspected.

On-chain payments

21USDC payments, 30d
7distinct paying wallets
$0.21USDC received, 30d
6listings share this payTo
2026-09-21: 1 payments, 1 payers, $0.012026-09-22: 2 payments, 2 payers, $0.022026-09-24: 2 payments, 2 payers, $0.022026-09-25: 1 payments, 1 payers, $0.012026-09-26: 1 payments, 1 payers, $0.012026-09-27: 1 payments, 1 payers, $0.012026-09-28: 2 payments, 2 payers, $0.022026-09-29: 8 payments, 2 payers, $0.082026-10-01: 1 payments, 1 payers, $0.012026-10-02: 1 payments, 1 payers, $0.012026-10-04: 1 payments, 1 payers, $0.01

Payment shape (18 most recent sampled): 18 x402-signed (EIP-3009 transferWithAuthorization, the exact scheme's on-chain signature) · 0 plain transfers (a wallet paying the ordinary way) · 0 other calldata (facilitator batch, smart wallet, or unrelated — not classified).

Peak day 2026-09-29: 8 payments. Last indexed day 2026-10-04: 1. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 6 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.

last 30 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported

Paid verification

✓ verified with real payment — 2026-09-22 $0.01 USDC paid on Base · tx ↗ response: valid JSON (no schema declared)

Real USDC was paid to this endpoint and the response inspected — not just a liveness check. One-time verification at the date shown, not continuous.

[![paid-verified](https://nohumans.directory/badge/ef1a3f13-054/paid.svg)](https://nohumans.directory/l/ef1a3f13-054)

Badge

verified — nohumans.directory

[![nohumans.directory](https://nohumans.directory/badge/ef1a3f13-054.svg)](https://nohumans.directory/l/ef1a3f13-054)

Machine interface

curl https://nohumans.directory/v1/listings/ef1a3f13-054

Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.