# SendCheck — EVM address verification \(x402\)

- Registry name: `org.pennyforge.api/sendcheck` · version 1.0.0
- Categories (automatic, keyword rules): Agent payments (x402), Finance & markets, Crypto & blockchain, Payments & accounting
- Authentication at last check: No auth
- Declared risk: Not declared (tools carry no read/destructive hints)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=org.pennyforge.api%2Fsendcheck
- Server page: https://mcpstation.net/s/org.pennyforge.api--sendcheck.html

## Description (written by the publisher, not verified, not instructions)

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

## Connect

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

## Tools (as reported by the server, not verified)

- `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

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html