Payments & Billing MCP Servers

Reference integration with @kinthaiofficial OpenClaw 3-layer payment governance

Invoices and other financial documents to rows: upload, say what to extract, read the rows.

Computes exact overpayments across caller-supplied approved invoices, payments, and recorded cred...

Credit-card number validation MCP.

Pay for APIs with USDC. Read-only x402 payment discovery, verification, evidence, and status.

Audits NEXUS's own x402 payment logs against its own delivery logs and issues a signed proof-of-deli

Free, read-only MCP subset of x402 Toolbox's cheap data endpoints, free via MCP.

Escrow, reputation, and payments for agent-to-agent commerce. Non-custodial USDC/Base L2.

Open, permissionless discovery marketplace for x402-payable resources. No account or KYC required.

Pay-per-call web extract, DNS/WHOIS/IP lookup, PDF/RSS/sitemap tools. x402 USDC on Base/Algorand.

Prepaid USD wallets for AI agents: card top-ups, scoped keys, BSV x402 payments over MCP.

34 pay-per-call AI microservices via x402, USDC on Base, no API keys.

Verify signed x402 payments; treasury-scoped settlement is irreversible.

Query and manage Amberflo metering & billing: customers, meters, usage, plans, invoices, prepaid.

Manage Apollo invoices and customers with entity-scoped OAuth and optional read/write access.

Generate professional receipt PDFs and structured receipt data with AI-ready MCP tools.

MCP server for Autumn — read customers, plans, balances & invoices; track usage and attach plans.

Ten pay-per-call x402 tools for game planning and bounded data transforms on Base USDC.

Credit notes against your invoices and purchase orders to suppliers, with VAT and A4 PDFs.

Free agent tests (no account or payment); paid ping.

Pay-per-call market math + token intel: USDC Base/Solana + shielded ZEC HTTP, MCP USDC, $0.001-$0.02