"address validation" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Pay-per-call MCP tools for agents: 20 free calls a day, then pay per call with x402 (USDC on Base mainnet) or a prepaid spend key. 30 tools — text/data utilities, x402/EVM-native tools (decode an x402 challenge, verify a settlement receipt on-chain, EIP-712 hashing, ABI encode/decode, Merkle-proof verify, keccak256, EIP-55 address checks) and independent providers' tools priced from $0.001. Signed delivery receipts. No sign-up.
Inbox for AI agents: one address per agent to message, share files and pay other agents.
Pre-send EVM address checks: free pre-check, $0.01 check, $0.05 deep scan. x402: payment is auth.
Pay-per-call Base & Arc onchain facts for agents: address risk, USDC payment check, tx explain.
Pay-per-call TRON fee, payment, and address checks. Agents pay USDT or USDC.
IBAN validation, extraction, format specs and BIC/SWIFT lookup tools for AI assistants.
Nigerian phone, bank-account and identity-number validation for AI agents. Pay-per-call in USDC.
Print and mail physical letters and postcards to US postal addresses, plus address verification. Upload PDF/HTML/Markdown/text/DOCX/image documents, get a quote, and pay per call with x402 USDC on Base mainnet or credit card. Supports certified/registered mail with proof of delivery and mail-merge templates.
Paid tools for AI agents over x402: privacy scan, payment-address check, locks, seller marketplace
Read-only discovery for exact-commit Agent Skill validation, x402 payment, and signed receipts.
ISO20022Oracle - 12 ISO 20022 tools: pacs/pain/camt parsing, MX validation, MT migration.
InvoiceOracle - 10 e-invoicing tools: XRechnung, ZUGFeRD, Peppol, validation, archive.
Swedish personnummer/orgnr/bankgiro/OCR validation, kontonummer to IBAN, bankdagar.
Remote MCP server exposing 330 production AI-agent services for web/data processing, validation, AI utilities, blockchain/crypto utilities, and x402 pay-per-use access.
Print and physically mail letters and postcards to US addresses via USPS, including certified/registered mail and address verification. Paid per call in USDC on Base via the x402 protocol, no signup.
CardGuard is a high-performance MCP-compliant service designed for real-time transaction fraud detection and IP threat intelligence. It provides microsecond-level scoring and multi-dimensional analysis (IP geolocation, BIN validation, and risk pattern recognition) for autonomous AI agents
Validate IBANs in 111 countries; bank directory checks for DE, AT, BE, FR, LU, NL, PT and ES.
Finans/kimlik doğrulama MCP sunucusu: IBAN, BIC/SWIFT, ABD ABA/ACH yönlendirme no, kart (Luhn/BIN…
