This is a pay-per-call MCP server that runs AI and web tooling through x402's micropayment layer on Base. You get LLM capabilities, SEO analysis, web extraction, and on-chain token safety checks, all paid for in USDC per request rather than through a subscription. Reach for this if you want Claude to access premium API functionality without managing multiple service accounts or you're building something where usage-based pricing over crypto rails makes more sense than traditional billing. The x402 protocol handles the payments, so each tool call settles on-chain as it executes.
WALLET_PRIVATE_KEYsecretFunded Base wallet private key for x402 payment signing (optional; without it, paid tools return the 402 requirements).
SERVER_URLtrue402 API base (default https://true402.dev/api). Must be https (or localhost) — the signer refuses to send a payment over cleartext.
MAX_PAYMENT_USDCClient-side per-call spend ceiling in USDC (default 0.10). The signer refuses to auto-pay a 402 whose amount exceeds this — protects the wallet from a hostile endpoint.
io.github.ericm1018/skillfm-llm-cost-optimizer-openai-anthropic-usage
io.github.mikerawsonnz/llm-orchestration-agent
io.github.mikerawsonnz/authenticated-llm-agent
labforgedev/copilot-memory-mcp
csoai-org/agent-prompt-injection-firewall-mcp
io.github.mikerawsonnz/authenticated-multi-llm-agent