All servers · Agent payments (x402) · Crypto & blockchain · Payments & accounting

SendCheck — EVM address verification (x402)

org.pennyforge.api/sendcheck · v1.0.0

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Not declared (tools carry no read/destructive hints)
Capabilities declared	tools
Tool definitions	3 tools · with description 100% · input schema is an object 100% · read/destructive hints 0%

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

streamable-http · https://api.pennyforge.org/mcp

claude mcp add --transport http sendcheck https://api.pennyforge.org/mcp

{
  "mcpServers": {
    "sendcheck": {
      "url": "https://api.pennyforge.org/mcp"
    }
  }
}

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 spell-check, not payee verification. Run this before paying for check_address.
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/USDT balances, leveled verdict with reasons and next action. TWO-PHASE: call without x_payment first to get the exact payment challenge (pa
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-mismatch flags ($0.05 USDC via x402, EIP-3009 on Base). TWO-PHASE like check_address: first call returns the payment challenge; second call wit

Repository · JSON · Text for agents · Registry updated 2026-09-08