ZERO Payment Guard

Connect Remote server

claude mcp add --transport http payment-guard https://zero-payment-guard.worker.beacon.host/mcp

{
  "mcpServers": {
    "payment-guard": {
      "url": "https://zero-payment-guard.worker.beacon.host/mcp"
    }
  }
}

{
  "servers": {
    "payment-guard": {
      "type": "http",
      "url": "https://zero-payment-guard.worker.beacon.host/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://zero-payment-guard.worker.beacon.host/mcp

Tools 11 found in our last check

• company_brief

  Paid $0.003 per call (x402, USDC on Base). One call to research a company: everything domain_enrich returns (socials, email provider, SPF/DMARC, DNS provider, RDAP age, tech stack, SaaS signals) plus its homepage and About page as clean Markdown.

• page_extract_batch

  Paid $0.008 per call (x402, USDC on Base). Extract up to 10 public web pages in parallel to clean Markdown + metadata. Per-URL errors are inline; fails (not charged) only if no URL succeeds.

• domain_enrich

  Paid $0.002 per call (x402, USDC on Base). Domain, URL or work email to a company profile from public sources: name, description, logo, social profiles, homepage contact emails/phones; email provider from MX, SPF/DMARC policy; DNS provider; SaaS signals from TXT verifications; R…

• page_extract

  Paid $0.001 per call (x402, USDC on Base). Fetch a public web page and return its main content as clean Markdown plus metadata: title, description, canonical, language, author, dates, OpenGraph/Twitter card, JSON-LD types, headings outline, favicon, feeds, link counts (links=tru…

• x402_preflight

  Paid $0.005 per call (x402, USDC on Base). Before your agent pays an unknown x402 endpoint: fetch its 402 unpaid and check the asset is canonical Circle USDC for that network, price/scheme/timeout sanity, and payTo (contract or EOA, USDC balance on Base). Returns verdict ok/caut…

• usdc_payment_check

  Paid $0.002 per call (x402, USDC on Base). Verify a Base mainnet transaction paid native Circle USDC (not bridged USDbC) to a recipient, with minimum amount and confirmations. Use before releasing goods or marking an invoice paid. Verdict paid/not_paid/not_found.

• token_check

  Paid $0.003 per call (x402, USDC on Base). Before accepting, swapping or approving a token on Base: is it a contract, ERC-20 metadata, canonical official deployment (USDC, EURC, WETH, cbBTC...), impersonation of a major symbol, upgradeable proxy and admin type, owner, paused. Ve…

• basename_resolve

  Paid $0.001 per call (x402, USDC on Base). Resolve a Basename (alice.base.eth) to its Base address, or an address to its primary Basename with forward-verification. Use before sending funds to a name.

• wallet_snapshot

  Paid $0.002 per call (x402, USDC on Base). One call: ETH and canonical Base token balances (native USDC, USDbC, EURC, WETH, cbBTC, cbETH, DAI, USDT), nonce, EOA or contract, flags (fresh/unused address, holds bridged USDbC). Use before sending funds or accepting a counterparty.

• tx_status

  Paid $0.001 per call (x402, USDC on Base). State not_found/pending/success/reverted, block, confirmations, from/to, fee in ETH (incl. L1 fee), method selector, decoded ERC-20 Transfer events with symbols/amounts (canonical tokens flagged). Use to confirm a payment, swap or call…

• sample_report

  Free: real live x402 preflight of a fixed sample endpoint and a token check of USDC on Base, same shapes as the paid tools.

Details

More finance and crypto servers See all

• RightCard

  Which of your credit cards to use at any store, from verified bank data. No bank login.

• Africa Compliance Data

  African holidays, business days, VAT, withholding tax, tax treaties, tax IDs and filing deadlines

• BusCalc Business Calculators

  Business calculators, data lookups, replayable receipts, and documentation for enterprise pilots.

• CarLoanMath

  US car loan math: monthly payment, compare loans, max price for your budget, amortization. Free.

• InfinityVolume

  Dollar volume across 13 stock markets and US sectors, against each one's own normal. No prices.

• xytara MCP Executor

  Pay-per-call MCP tools and signed on-chain attestations: 20 free/day, then x402 or a spend key.