Payments & Billing MCP Servers for Grok Build

Instagram research, Story monitoring and creator comparison. MCP x402 paid calls, USDC on Solana.

Invoicing you drive by talking to your AI: log time, raise invoices and track what's owed via MCP.

Freelancer invoice generator: line items, tax, totals, PDF - issued from a chat message.

Create an XRechnung/ZUGFeRD invoice, check it against EN 16931, and explain any errors with the rule ID. No account required.

Look up invoices, estimates, and customers. Save a draft. Nothing is sent.

Manage Invoice Ninja clients, invoices, quotes, expenses, tasks and projects.

Evidence-backed UBL, PDF, and image invoice checks before approval or payment.

Set invoice rounding guidance.

Calculate an invoice summary.

Invoice PDFs, scans and photos to Excel, with the math checked: fields, line items and totals.

See revenue, unpaid invoices, open quotes and your product catalog for each of your businesses.

E-invoice checker for ZUGFeRD, Factur-X, XRechnung and Peppol BIS. Free web tool, API and MCP.

Find pay-per-call x402 tools (USDC on Base) for any task, ranked by relevance and real demand.

Instant x402 spend-cap pack for agents. get_quote then buy_intel_pack 5 USDC Base. No human.

Korea POPBiLL e-tax-invoice: AI agents issue, query & transmit e-invoices, stateless BYO.

Pay for HTTP APIs and charge for your own: x402 micropayments in USDC on Base.

Compute and verify prices from an agent, metered per call. Works keyless on a demo tenant.

Latvia payments for AI agents — cards / Apple Pay via Stripe. Never holds funds.

15 pay-per-call Bitcoin and developer tools, paid in sats over Lightning (L402).

Check any x402 endpoint before your AI agent pays it: trust grade, verdict, and hijack checks.

Luxembourg Peppol BIS 3.0 e-invoices for AI agents: send, check recipient, get delivery proof.