SendCheck — EVM address verification (x402)

Name: SendCheck — EVM address verification (x402)
Author: org.pennyforge.api

MCP serverMCP

Pre-send EVM address checks: free pre-check, $0.01 check, $0.05 deep scan. x402: payment is auth.

by org.pennyforge.apirepository ↗v1.0.0

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Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability109/109 checks ok

when	check	result	http	latency	detail
2 h ago	mcp initialize	ok	200	13 ms	server sendcheck 1.0.0 · protocol 2025-06-18 · 3 tools
8 h ago	mcp initialize	ok	200	38 ms	server sendcheck 1.0.0 · protocol 2025-06-18 · 3 tools
14 h ago	mcp initialize	ok	200	23 ms	server sendcheck 1.0.0 · protocol 2025-06-18 · 3 tools
21 h ago	mcp initialize	ok	200	12 ms	server sendcheck 1.0.0 · protocol 2025-06-18 · 3 tools
27 h ago	mcp initialize	ok	200	18 ms	server sendcheck 1.0.0 · protocol 2025-06-18 · 3 tools
34 h ago	mcp initialize	ok	200	26 ms	server sendcheck 1.0.0 · protocol 2025-06-18 · 3 tools
2 d ago	mcp initialize	ok	200	10 ms	server sendcheck 1.0.0 · protocol 2025-06-18 · 3 tools
2 d ago	mcp initialize	ok	200	14 ms	server sendcheck 1.0.0 · protocol 2025-06-18 · 3 tools
2 d ago	mcp initialize	ok	200	13 ms	server sendcheck 1.0.0 · protocol 2025-06-18 · 3 tools
3 d ago	mcp initialize	ok	200	17 ms	server sendcheck 1.0.0 · protocol 2025-06-18 · 3 tools

Tools observed via MCP handshake

validate_address — FREE pre-send check of an EVM address: EIP-55 checksum verification (catches typos, dropped characters, clipboard malware) + a note that a passing checksum is a
check_address — Paid pre-send verification of one EVM address on one chain ($0.01 USDC via x402, EIP-3009 on Base): checksum, wallet-vs-contract, outgoing activity, native/USDC
deep_scan — Paid deep scan: the full verification across ALL FIVE chains (Base, Ethereum, Arbitrum, Optimism, Polygon) incl. wrong-network detection and USDC/USDT token-mis

Declared by sources

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No long description beyond the summary.

kind Official MCP Registry

name Official MCP Registry

repoUrl Official MCP Registry

summary Official MCP Registry

version Official MCP Registry

description Official MCP Registry

publisherName Official MCP Registry

Provenance

Where this record came from

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Official MCP Registryorg.pennyforge.api/sendcheck

first seen 1 mo ago · fetched 30 h agoopen ↗

Field history (6 recent events)

1 mo ago · declared · summary → "Pre-send EVM address checks: free pre-check, $0.01 check, $0.05 deep scan. x402: payment is auth."
1 mo ago · declared · description → "Pre-send EVM address checks: free pre-check, $0.01 check, $0.05 deep scan. x402: payment is auth."
1 mo ago · declared · publisherName → "org.pennyforge.api"
1 mo ago · declared · repoUrl → "https://github.com/pennyforgeorg/sendcheck-verify"
1 mo ago · declared · version → "1.0.0"
1 mo ago · declared · protocols → ["mcp"]

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Evidence

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