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SendCheck — EVM address verification (x402)

org.pennyforge.api/sendcheck
Krypto & Web3 Sicherheit Öffentlich und erreichbar MCP 2026-07-28

Was dieses MCP kann

Validates and verifies EVM addresses, including checksum, address type, activity, balances, network mismatches, and token details.

Funktionen

Tools

3 Tools
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 (payTo, amount, asset), sign the USDC transfer, then call again with x_payment = the resulting X-Payment header to get the report. No account, no API key — the payment is the authentication.
Eingabeschema 
{'type': 'object', 'required': ['address'], 'properties': {'chain': {'enum': ['base', 'ethereum', 'arbitrum', 'optimism', 'polygon'], 'type': 'string', 'description': 'Chain to scan (default: base)'}, 'address': {'type': 'string', 'description': 'EVM address, 0x + 40 hex characters'}, 'x_payment': {'type': 'string', 'description': 'X-Payment header value from your signed EIP-3009 transfer (second phase only)'}}}
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 with x_payment returns the report.
Eingabeschema 
{'type': 'object', 'required': ['address'], 'properties': {'address': {'type': 'string', 'description': 'EVM address, 0x + 40 hex characters'}, 'x_payment': {'type': 'string', 'description': 'X-Payment header value from your signed EIP-3009 transfer (second phase only)'}}}
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.
Eingabeschema 
{'type': 'object', 'required': ['address'], 'properties': {'address': {'type': 'string', 'description': 'EVM address, 0x + 40 hex characters (any casing)'}}}
Verlauf

Letzte Tool-Änderungen

Hinzugefügt
deep_scan
17. September 2026 12:54
Hinzugefügt
check_address
17. September 2026 12:54
Hinzugefügt
validate_address
17. September 2026 12:54
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