"Box" matching MCP connectors:

Paid web research, news, prediction-market evidence, company briefs and fact-checks (x402 USDC)

Data feeds for AI agents: list products, sign up, check balance, get a top-up link, fetch data.

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

337 MCP tools with x402 micropayments on Base. $0.001/call. No signup, no API keys.

Signed attestations for agents, $0.01/call via x402: URL witness, AI permission, tx finality, JWKS.

Czech accounting for freelancers and small businesses: invoices and receipts with VAT breakdowns, overdue invoices, VAT summaries, Czech tax deadlines, bank transactions, data box envelopes, draft invoicing and receipt upload from your DokladBot account (dokladbot.cz).