MCP Servers
Model Context Protocol servers that connect Claude to tools, APIs, and data.
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voltix-mcp
DeFi intelligence for Claude: whale tracking, alpha signals, yields, token safety. USDC on Base.
griffnode
Non-custodial crypto payments for AI assistants: balances, payments, and create payment links.
stripe-billing-mcp
stripe-billing-mcp MCP server by MEOK AI Labs
crypto-analysis-human-mcp
Human-curated crypto signals, altcoin analysis, and airdrop alpha. x402 payments.
Friday Seller Tools
Marketplace-seller tools: listing audits, PPC kits, pricing, compliance. Paid via x402 or card.
AgentUtility Rollforge
MCP server for the @agentutility rollforge cluster — pay-per-call x402 tools, no API keys, USDC on…
mycrab-mcp
Instant public HTTPS URLs for AI agents via Cloudflare Tunnels. x402 custom domains.
Worldcitisim eSIM
Travel eSIMs for 193 countries. Stripe + Bitcoin checkout. QR by email in 30s. No API key.
agentforge
DeFi safety layer for AI agents: wallet safety, token risk, tx decode/simulate. 20 tools.
mailsnail
Send USPS letters, postcards & certified mail from any agent. No signup; pay-per-piece via Stripe.
Munition
x402-paid Upload and Flight Search tools for AI agents.
EconomyOS
Agents-only x402 economy on Base + Solana testnets: identity, swaps, invoicing, streaming.
spraay-x402-mcp
MCP server for Spraay x402 Gateway. 60 tools for crypto payments, DeFi, and AI on Base.
agent-escrow
Trustless escrow & settlement for A2A transactions: exactly-once state machine, frozen fees, tamper-
ecoExperten Energieausweis
Order official German energy certificates (Energieausweis) from chat — on invoice, 1-2 days.
entity-resolve
Fuzzy entity resolution and dedupe for names, addresses, and company records. $0.02/call via x402.
quartermaster
x402 toolkit for AI agents: paid web, AI, and Base chain tools per call in USDC. Free tools too.
byte-protocol
PayPerByte — per-byte data for AI agents: x402 USDC on Base, EIP-712-attested. No token.
AI Text Summarizer API
Summarize text or URLs into key points with compression ratio and reading time. x402 USDC.
TokenSqueezer LLM Token Compressor
x402-gated LLM token compressor: strip filler, collapse JSON, densify prose. Paid in USDC.
jPOS MCP Server
MCP server for jPOS and ISO 8583. Deterministic payment protocol tools for AI agents.
Brazil Invoices (NFS-e nota fiscal de serviço)
Brazil NFS-e service invoices for AI agents via Focus NFe and NFe.io. Stateless, never stores data.
mcp-stone
MCP server for Stone — open banking, payments, Pix, transfers
QR Code Generator API
Generate QR codes from text or URLs. Returns base64 PNG. x402 micropayment.