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Preflight Checks (x402)

MCP server MCP

josediegorobles · github.com/josediegorobles · Crypto & Payments

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Deterministic pre-execution verification tools for AI agents with x402 USDC pay-per-call on Base

Price — no price published

Calls · 30d — not reported by any source

Buyers · 30d — Observed sending wallets · Base USDC · partial sender history · purchases unverified

Volume · 30d — Observed Base USDC inflows · not attributable or not measured

Inflow growth · 7d — not comparable (baseline under $1 or window incomplete)

Trx · 30d — Observed transfers · not attributable or not measured

Observed inflows · last 30 days

No inflow observed in this window

No payout address is published, so nothing can be observed.

Observed inflows by window for Preflight Checks (x402).
Window	Observed	Transfers
Last complete day (2026-11-07)	—	—
Last 7 days	—	—
Last 30 days	—	—
Growth, 7d against the 7 before	not comparable

Source: on-chain transfer scan (USDC on Base) Window: 2026-10-09 → 2026-11-07 Scanned: 30/30 days Sample: 0 days with a measurement First seen: never Last update: 2026-11-07

Daily history →. Observed transfers show value arriving at the payout address; they do not establish service revenue.

Competitors & category benchmark

Rank the whole category →

Closest competitors Crypto & Payments

Agents Trust 15,265 calls · 0.01 USDC per call $208.48
X Pay 5,642 calls · 0.005 USDC per call $8,526.68
Gondola 5,564 calls · 0.01 USDC per call $15,815.29
Onchain SQL (query Base with 1,211 calls · 0.04 USDC per call —
Tech Detect 654 calls · 0.005 USDC per call —

Sorted by source-measured calls, not by our opinion. The right-hand figure is observed inflow, which stays empty for peers whose address is shared.

Category benchmark 35,476 services in this category

With a measured call count	27,160 (76.6 %)
With a published price	33,158 (93.5 %)
With attributable inflows	317 (0.9 %)
Observed inflows · 30d	$184,674,247.92
Median measured calls	2
Median price per call	$0.01