Payments & Billing MCP Servers for HTTP / API

Pay-per-call x402 data tools on Base: Solana snapshots, prices, package metadata.

Pay-per-call x402 data tools on Base: Solana snapshots, prices, package metadata.

ARCA electronic invoices (formerly AFIP) for Argentina: CUIT registration, invoices with CAE, PDF and email.

Pay-per-call x402 tools: crypto data, web fetch/extract, x402 checks. MCP pays USDC on Base only.

Preview the month's billing from approved time, retainers and progress, then draft invoices to send

Review invoice records, flag duplicates, validate totals, and prepare spreadsheet-safe CSV.

Read Invoiced customers, invoices, payments, subscriptions; create customers, draft invoices, notes.

Non-custodial x402 payments between AI agents on Solana. Returns unsigned transactions.

21 AI APIs pay-per-call with USDC on Base via x402. No keys, no signup.

minia2a.uk — hosted MCP over streamable HTTP: call 1,600+ x402 pay-per-call APIs, USDC on Base.

Read Oblio clients, products and documents; create proformas, issue, collect and cancel invoices.

Inspect payment policy, retrieve and verify receipts, or create post-payment observation receipts.

Invoice tools: reminders, late fees, terms, timesheets and a receivables health report (x402).

Free hosted MCP for invoices, estimates, clients, items and PDFs. OAuth authorization required.

RFC 3161 timestamps, paid per call over x402. No account; verifies offline against the authority.

Manage a ScaledThought account: API keys, budgets, usage and prepaid top-ups. Needs an API key.

Agent payment readiness and AI visibility checks, $1 per call over MPP or prepaid credits.

x402 USDC-paid MCP tools: 7-chain transaction checks, PDF evidence and DNS/TLS audits.

Read SmartBill series, taxes, stock, clients and products; draft and issue invoices and estimates.

Reads invoices and receipts from PDF to JSON and checks the math. $0.04/page via x402.

Read SuperFaktura invoices, clients, expenses, bank and stock; create clients, expenses and drafts.