Payments & Billing MCP Servers for HTTP / API

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

Chase overdue invoices: reminder 1, reminder 2, final notice, escalation dates, aging.

Paid machine-to-machine information tools with x402 USDC payment on Base Mainnet.

Is this x402/MPP API safe to pay? $0.001 preflight, fixes, a $0.25 test purchase. Free quick check.

Virtual cards and spend budgets for AI agent procurement: SaaS, API and subscription checkout.

Ferramentas MCP para NF-e, NFS-e, documentos, certificados e tributos brasileiros.

Wallet-approved SOL and Solana USDC payments to verified X handles, with zero custody.

Reference integration with @kinthaiofficial OpenClaw 3-layer payment governance

Eight metered machine-intelligence tools for AI agents with native x402 payment paths.

Mechanically reconcile supplied purchase-order lines, invoice lines and goods receipts under expl...

Generate, validate and read EN 16931 and Peppol BIS 3.0 e-invoices, in UBL and CII.

Validate, generate & convert EU e-invoices (UBL, CII, XRechnung, Factur-X) — EN 16931 pre-validated.

Japan payments for AI agents — konbini コンビニ, card, PayPay via KOMOJU. Stateless, never holds funds.

AI procurement for web search, news, finance, blockchain, social, enrichment and travel APIs.

Stripe payments for AI agents. Create links, verify, manage customers.

Pay-per-call MCP tools over x402 (USDC/Solana): LLM, utilities, x402 market and model prices.

Put any API behind x402 in one call, settle USDC on Base, buy credits, find paid resources

Feed of x402/L402 services newly listed on 402index.io within a recency window (candidate #8, manual