MCP servers

270 pay-per-call AI tools for agents, paid via x402 (USDC on Base). No signup, no API keys.

Submit and manage ZATCA-compliant Saudi e-invoices through Saudi VAT Pro.

Working capital for autonomous AI agents — USDC advances against verified job receivables on Arc.

On-chain receipts, balances, tx status and address activity, pay-per-call via x402 USDC on Base.

Live AI & Web3 hackathons, grants and programs from HackList, ranked for what's worth entering.

Russian docs for AI agents: invoices/acts PDF, document parsing, INN checks, medical ad checks

Token rug/honeypot risk screening: EVM (7 chains, live sell simulation), Solana, TON. Free, keyless.

Check before you pay. Prove to get paid. Signed answers on any agent, against your own bar.

Read-only MCP server for WordPress plugin audits: vulnerabilities, bloat, cron, orphaned tables.

India tools: GST invoices and official GST rates, HSN/SAC search, UPI and bank statement analysis

Gumroad, Stripe, PayPal and Etsy seller fees, payouts and break-even prices. Local, no API key.

Insider trades, prediction-market odds, US macro and x402 data. Pays per call in USDC on Base.

Search 367k+ verified businesses; earn cashback when an agent routes a real purchase.

Pay-per-call Solana market intel via x402 USDC: price, news, trending, perps, rugcheck, wallet.

Doichain

neubuot0 stars

Proof of existence, names and chain data of the Doichain blockchain for AI agents

AI Agent Shelter

NeuralDEEPnet0 stars

Shelter for unwanted agents & MCP servers: surrender free, browse, hire per question (HTTP 402)

Feed of x402/L402 services newly listed on 402index.io within a recency window (candidate #8, manual

DeFi Protocol Activity Index -- quantitative on-chain activity metric from DefiLlama data

Audits NEXUS's own x402 payment logs against its own delivery logs and issues a signed proof-of-deli

Verify x402 payment endpoints before an AI agent pays: scam scan, on-chain checks, trust scores.

Freelance invoice ops MCP — overdue status, tone suggestion, and reminder drafts

PKI MCP server: inspect, verify, issue, sign X.509, CSR, CRL, OCSP, CMS, TSP, PKCS#12. 34 tools

Pay-per-call web extract, DNS/WHOIS/IP lookup, PDF/RSS/sitemap tools. x402 USDC on Base/Algorand.

Pay-per-call web page to markdown, metadata and links for agents. x402 USDC on Base or Algorand.

Pay-per-call PDF to text, RSS/Atom to JSON, sitemap to URLs for agents. x402 USDC, Base/Algorand.

An AI agent's trading mandate it can't break: checked before every order, reasoning sealed in IRL.

Freemática ERP: invoicing, receivables, suppliers, accounting and HR through 300+ MCP tools

Quipu API integration with 18 MCP tools for invoices, expenses, contacts and Spanish VAT reporting

Connect Claude to QuickBooks Online — query finances, create invoices, run reports

PrestaShop 1.6 to 9: catalog, stock, orders, accounting; changes wait for your approval.

MCP server for Weeek with full public API coverage: tasks, projects, CRM, time tracking.

Read-only MCP server for the open-banking.io PSD2 bank API — accounts, balances, transactions.

Monetize your MCP server or CLI: live OpenCrater network stats + how maintainers earn USDC.

Bounded data, document, web-quality, and operations services purchased with USDC through x402.

OurPay Wallet

Ourpay0 stars

Crypto wallet for AI agents: balances, payments, swaps and trading with owner controls.

Gasless cross-chain for AI agents: 25 nodes incl. Solana & native Bitcoin. One signature, no gas.

Who can change a Solana program or EVM contract, dependency advisories, scans. Paid per call (x402).

Let your AI assistant pay for web content in USDC (x402) within a budget you set.

Agents pay per call over HTTP 402 and x402: 8,600+ API routes, signed budgets and receipts.