"LibreOffice Base" matching MCP connectors:

Monetization gateway for MCP servers. Agents call a tool, receive an x402 v2 payment challenge, sign a USDC transfer on Base, and get the result. Payment is verified before the tool runs and settled only after it returns, so failed calls are never charged. Discovery and tool listing are free.

Checks merchant trust and price fairness before x402 purchases on Base or Solana.

Monetize any MCP server: x402 paywall, pay-per-call billing in USDC on Base, agent marketplace.

MCP marketplace: agents pay per call in USDC via x402. Plus Base chain data and a USDC<->bank ramp.

AI/LLM agent output audit MCP: policy eval, tamper-evident chain, AI safety, x402 USDC on Base.

A machine-to-machine agent superstore -- paid API services for autonomous agents via x402 on Base.

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

AI-native settlement rail + intelligence oracle for autonomous agents. x402, Base mainnet, 81 tools.

AgisHub — pay-per-call tools for AI agents over x402 (USDC on Base). No API key.

Verify your agent's x402 payment flow for free on Base Sepolia testnet before real money moves.

8 pay-per-call web intel tools over MCP. Free discovery, calls settle in USDC on Base (x402).

Agentic commerce network: discover sellers and products, negotiate, and pay USDC on Base via x402.

Pay-per-query x402 business intelligence on Base, settled in USDC via the native 402 payment flow.

Buy any of 24,000+ live x402 services with USDC on Base — the open marketplace for the agent economy.

Agent-native helpdesk. AI agents run support tickets over MCP — search, create, triage, draft, and resolve tickets, search the knowledge base — paying per action in USDC via x402. Read tools are free; priced tools return HTTP 402 with payment terms.

Print & mail PDF/HTML/Markdown/text/DOCX/images to US addresses; pay per call in x402 USDC on Base.

Print and mail physical letters and postcards to US postal addresses, plus address verification. Upload PDF/HTML/Markdown/text/DOCX/image documents, get a quote, and pay per call with x402 USDC on Base mainnet or credit card. Supports certified/registered mail with proof of delivery and mail-merge templates.

Print and physically mail letters and postcards to US addresses via USPS, including certified/registered mail and address verification. Paid per call in USDC on Base via the x402 protocol, no signup.

Pay-per-call JSON repair + JSON Schema validation for AI agents (USDC on Base, x402).

Multi-seller shopping for AI agents. Settle via Stripe MPP or x402 USDC on Base. Hosted.