PennyAPI x402 Seller Preflight · pennyregwatch.com

Preflight an unfamiliar x402 paid API before spending. Validate the…

Preflight an unfamiliar x402 paid API before spending. Validate the live 402 payment challenge, network, USDC asset, amount, payTo recipient, TLS, redirects, manifest presence, latency, and provenance. Returns deterministic GO/REVIEW/STOP and never signs or sends payment to the inspected seller.

Ready now3 calls · 3 buyers in 30 days

Input

Sample response

Published by the provider. Your run returns a fresh response.

response6 keys

decision"GO"

http_status402

oktrue

source2 keys

payment_sentfalse

type"live_unpaid_probe"

target"https://example.com/paid-endpoint"

x4027 keys

accepts_count1

amount_atomic"1000"

challenge_presenttrue

network"eip155:8453"

pay_to"0x0000000000000000000000000000000000000001"

scheme"exact"

x402_version2

responseobject, 6 keys

Your agent can do this on its own

Add the MCP URL in Claude Code, Cursor or Codex. Your agent can run Tools within its spending limits, or ask for approval each time. Connect your agent

Connect your agent

Add one MCP URL and your agent can find and run this tool within its spending limits. Choose “Ask each time” if you want to approve every Call.

MCP URL

https://app.aecon.ai/mcp

Terminalbash

claude mcp add --transport http --scope user agentic-economy "https://app.aecon.ai/mcp"

In Claude Code, open /mcp, select agentic-economy, then choose Authenticate.

Track record

Paid calls, last 30 days: 3
Buyers, last 30 days: 3
Last paid call: last week

Reported by the x402 directory.

A$0.0015 per call